drm: Remove unnecessary drm_panel_attach and drm_panel_detach
[linux-2.6-microblaze.git] / drivers / gpu / drm / drm_edid.c
1 /*
2  * Copyright (c) 2006 Luc Verhaegen (quirks list)
3  * Copyright (c) 2007-2008 Intel Corporation
4  *   Jesse Barnes <jesse.barnes@intel.com>
5  * Copyright 2010 Red Hat, Inc.
6  *
7  * DDC probing routines (drm_ddc_read & drm_do_probe_ddc_edid) originally from
8  * FB layer.
9  *   Copyright (C) 2006 Dennis Munsie <dmunsie@cecropia.com>
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
14  * the rights to use, copy, modify, merge, publish, distribute, sub license,
15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice (including the
19  * next paragraph) shall be included in all copies or substantial portions
20  * of the Software.
21  *
22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
25  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28  * DEALINGS IN THE SOFTWARE.
29  */
30
31 #include <linux/hdmi.h>
32 #include <linux/i2c.h>
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/slab.h>
36 #include <linux/vga_switcheroo.h>
37
38 #include <drm/drm_displayid.h>
39 #include <drm/drm_drv.h>
40 #include <drm/drm_edid.h>
41 #include <drm/drm_encoder.h>
42 #include <drm/drm_print.h>
43 #include <drm/drm_scdc_helper.h>
44
45 #include "drm_crtc_internal.h"
46
47 #define version_greater(edid, maj, min) \
48         (((edid)->version > (maj)) || \
49          ((edid)->version == (maj) && (edid)->revision > (min)))
50
51 #define EDID_EST_TIMINGS 16
52 #define EDID_STD_TIMINGS 8
53 #define EDID_DETAILED_TIMINGS 4
54
55 /*
56  * EDID blocks out in the wild have a variety of bugs, try to collect
57  * them here (note that userspace may work around broken monitors first,
58  * but fixes should make their way here so that the kernel "just works"
59  * on as many displays as possible).
60  */
61
62 /* First detailed mode wrong, use largest 60Hz mode */
63 #define EDID_QUIRK_PREFER_LARGE_60              (1 << 0)
64 /* Reported 135MHz pixel clock is too high, needs adjustment */
65 #define EDID_QUIRK_135_CLOCK_TOO_HIGH           (1 << 1)
66 /* Prefer the largest mode at 75 Hz */
67 #define EDID_QUIRK_PREFER_LARGE_75              (1 << 2)
68 /* Detail timing is in cm not mm */
69 #define EDID_QUIRK_DETAILED_IN_CM               (1 << 3)
70 /* Detailed timing descriptors have bogus size values, so just take the
71  * maximum size and use that.
72  */
73 #define EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE    (1 << 4)
74 /* use +hsync +vsync for detailed mode */
75 #define EDID_QUIRK_DETAILED_SYNC_PP             (1 << 6)
76 /* Force reduced-blanking timings for detailed modes */
77 #define EDID_QUIRK_FORCE_REDUCED_BLANKING       (1 << 7)
78 /* Force 8bpc */
79 #define EDID_QUIRK_FORCE_8BPC                   (1 << 8)
80 /* Force 12bpc */
81 #define EDID_QUIRK_FORCE_12BPC                  (1 << 9)
82 /* Force 6bpc */
83 #define EDID_QUIRK_FORCE_6BPC                   (1 << 10)
84 /* Force 10bpc */
85 #define EDID_QUIRK_FORCE_10BPC                  (1 << 11)
86 /* Non desktop display (i.e. HMD) */
87 #define EDID_QUIRK_NON_DESKTOP                  (1 << 12)
88
89 struct detailed_mode_closure {
90         struct drm_connector *connector;
91         struct edid *edid;
92         bool preferred;
93         u32 quirks;
94         int modes;
95 };
96
97 #define LEVEL_DMT       0
98 #define LEVEL_GTF       1
99 #define LEVEL_GTF2      2
100 #define LEVEL_CVT       3
101
102 static const struct edid_quirk {
103         char vendor[4];
104         int product_id;
105         u32 quirks;
106 } edid_quirk_list[] = {
107         /* Acer AL1706 */
108         { "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
109         /* Acer F51 */
110         { "API", 0x7602, EDID_QUIRK_PREFER_LARGE_60 },
111
112         /* AEO model 0 reports 8 bpc, but is a 6 bpc panel */
113         { "AEO", 0, EDID_QUIRK_FORCE_6BPC },
114
115         /* BOE model on HP Pavilion 15-n233sl reports 8 bpc, but is a 6 bpc panel */
116         { "BOE", 0x78b, EDID_QUIRK_FORCE_6BPC },
117
118         /* CPT panel of Asus UX303LA reports 8 bpc, but is a 6 bpc panel */
119         { "CPT", 0x17df, EDID_QUIRK_FORCE_6BPC },
120
121         /* SDC panel of Lenovo B50-80 reports 8 bpc, but is a 6 bpc panel */
122         { "SDC", 0x3652, EDID_QUIRK_FORCE_6BPC },
123
124         /* BOE model 0x0771 reports 8 bpc, but is a 6 bpc panel */
125         { "BOE", 0x0771, EDID_QUIRK_FORCE_6BPC },
126
127         /* Belinea 10 15 55 */
128         { "MAX", 1516, EDID_QUIRK_PREFER_LARGE_60 },
129         { "MAX", 0x77e, EDID_QUIRK_PREFER_LARGE_60 },
130
131         /* Envision Peripherals, Inc. EN-7100e */
132         { "EPI", 59264, EDID_QUIRK_135_CLOCK_TOO_HIGH },
133         /* Envision EN2028 */
134         { "EPI", 8232, EDID_QUIRK_PREFER_LARGE_60 },
135
136         /* Funai Electronics PM36B */
137         { "FCM", 13600, EDID_QUIRK_PREFER_LARGE_75 |
138           EDID_QUIRK_DETAILED_IN_CM },
139
140         /* LGD panel of HP zBook 17 G2, eDP 10 bpc, but reports unknown bpc */
141         { "LGD", 764, EDID_QUIRK_FORCE_10BPC },
142
143         /* LG Philips LCD LP154W01-A5 */
144         { "LPL", 0, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
145         { "LPL", 0x2a00, EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE },
146
147         /* Samsung SyncMaster 205BW.  Note: irony */
148         { "SAM", 541, EDID_QUIRK_DETAILED_SYNC_PP },
149         /* Samsung SyncMaster 22[5-6]BW */
150         { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
151         { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
152
153         /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
154         { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC },
155
156         /* ViewSonic VA2026w */
157         { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
158
159         /* Medion MD 30217 PG */
160         { "MED", 0x7b8, EDID_QUIRK_PREFER_LARGE_75 },
161
162         /* Lenovo G50 */
163         { "SDC", 18514, EDID_QUIRK_FORCE_6BPC },
164
165         /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */
166         { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC },
167
168         /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/
169         { "ETR", 13896, EDID_QUIRK_FORCE_8BPC },
170
171         /* Valve Index Headset */
172         { "VLV", 0x91a8, EDID_QUIRK_NON_DESKTOP },
173         { "VLV", 0x91b0, EDID_QUIRK_NON_DESKTOP },
174         { "VLV", 0x91b1, EDID_QUIRK_NON_DESKTOP },
175         { "VLV", 0x91b2, EDID_QUIRK_NON_DESKTOP },
176         { "VLV", 0x91b3, EDID_QUIRK_NON_DESKTOP },
177         { "VLV", 0x91b4, EDID_QUIRK_NON_DESKTOP },
178         { "VLV", 0x91b5, EDID_QUIRK_NON_DESKTOP },
179         { "VLV", 0x91b6, EDID_QUIRK_NON_DESKTOP },
180         { "VLV", 0x91b7, EDID_QUIRK_NON_DESKTOP },
181         { "VLV", 0x91b8, EDID_QUIRK_NON_DESKTOP },
182         { "VLV", 0x91b9, EDID_QUIRK_NON_DESKTOP },
183         { "VLV", 0x91ba, EDID_QUIRK_NON_DESKTOP },
184         { "VLV", 0x91bb, EDID_QUIRK_NON_DESKTOP },
185         { "VLV", 0x91bc, EDID_QUIRK_NON_DESKTOP },
186         { "VLV", 0x91bd, EDID_QUIRK_NON_DESKTOP },
187         { "VLV", 0x91be, EDID_QUIRK_NON_DESKTOP },
188         { "VLV", 0x91bf, EDID_QUIRK_NON_DESKTOP },
189
190         /* HTC Vive and Vive Pro VR Headsets */
191         { "HVR", 0xaa01, EDID_QUIRK_NON_DESKTOP },
192         { "HVR", 0xaa02, EDID_QUIRK_NON_DESKTOP },
193
194         /* Oculus Rift DK1, DK2, CV1 and Rift S VR Headsets */
195         { "OVR", 0x0001, EDID_QUIRK_NON_DESKTOP },
196         { "OVR", 0x0003, EDID_QUIRK_NON_DESKTOP },
197         { "OVR", 0x0004, EDID_QUIRK_NON_DESKTOP },
198         { "OVR", 0x0012, EDID_QUIRK_NON_DESKTOP },
199
200         /* Windows Mixed Reality Headsets */
201         { "ACR", 0x7fce, EDID_QUIRK_NON_DESKTOP },
202         { "HPN", 0x3515, EDID_QUIRK_NON_DESKTOP },
203         { "LEN", 0x0408, EDID_QUIRK_NON_DESKTOP },
204         { "LEN", 0xb800, EDID_QUIRK_NON_DESKTOP },
205         { "FUJ", 0x1970, EDID_QUIRK_NON_DESKTOP },
206         { "DEL", 0x7fce, EDID_QUIRK_NON_DESKTOP },
207         { "SEC", 0x144a, EDID_QUIRK_NON_DESKTOP },
208         { "AUS", 0xc102, EDID_QUIRK_NON_DESKTOP },
209
210         /* Sony PlayStation VR Headset */
211         { "SNY", 0x0704, EDID_QUIRK_NON_DESKTOP },
212
213         /* Sensics VR Headsets */
214         { "SEN", 0x1019, EDID_QUIRK_NON_DESKTOP },
215
216         /* OSVR HDK and HDK2 VR Headsets */
217         { "SVR", 0x1019, EDID_QUIRK_NON_DESKTOP },
218 };
219
220 /*
221  * Autogenerated from the DMT spec.
222  * This table is copied from xfree86/modes/xf86EdidModes.c.
223  */
224 static const struct drm_display_mode drm_dmt_modes[] = {
225         /* 0x01 - 640x350@85Hz */
226         { DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
227                    736, 832, 0, 350, 382, 385, 445, 0,
228                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
229         /* 0x02 - 640x400@85Hz */
230         { DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 31500, 640, 672,
231                    736, 832, 0, 400, 401, 404, 445, 0,
232                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
233         /* 0x03 - 720x400@85Hz */
234         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 756,
235                    828, 936, 0, 400, 401, 404, 446, 0,
236                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
237         /* 0x04 - 640x480@60Hz */
238         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
239                    752, 800, 0, 480, 490, 492, 525, 0,
240                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
241         /* 0x05 - 640x480@72Hz */
242         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
243                    704, 832, 0, 480, 489, 492, 520, 0,
244                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
245         /* 0x06 - 640x480@75Hz */
246         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
247                    720, 840, 0, 480, 481, 484, 500, 0,
248                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
249         /* 0x07 - 640x480@85Hz */
250         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 36000, 640, 696,
251                    752, 832, 0, 480, 481, 484, 509, 0,
252                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
253         /* 0x08 - 800x600@56Hz */
254         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
255                    896, 1024, 0, 600, 601, 603, 625, 0,
256                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
257         /* 0x09 - 800x600@60Hz */
258         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
259                    968, 1056, 0, 600, 601, 605, 628, 0,
260                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
261         /* 0x0a - 800x600@72Hz */
262         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
263                    976, 1040, 0, 600, 637, 643, 666, 0,
264                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
265         /* 0x0b - 800x600@75Hz */
266         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
267                    896, 1056, 0, 600, 601, 604, 625, 0,
268                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
269         /* 0x0c - 800x600@85Hz */
270         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 56250, 800, 832,
271                    896, 1048, 0, 600, 601, 604, 631, 0,
272                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
273         /* 0x0d - 800x600@120Hz RB */
274         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 73250, 800, 848,
275                    880, 960, 0, 600, 603, 607, 636, 0,
276                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
277         /* 0x0e - 848x480@60Hz */
278         { DRM_MODE("848x480", DRM_MODE_TYPE_DRIVER, 33750, 848, 864,
279                    976, 1088, 0, 480, 486, 494, 517, 0,
280                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
281         /* 0x0f - 1024x768@43Hz, interlace */
282         { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER, 44900, 1024, 1032,
283                    1208, 1264, 0, 768, 768, 776, 817, 0,
284                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
285                    DRM_MODE_FLAG_INTERLACE) },
286         /* 0x10 - 1024x768@60Hz */
287         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
288                    1184, 1344, 0, 768, 771, 777, 806, 0,
289                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
290         /* 0x11 - 1024x768@70Hz */
291         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
292                    1184, 1328, 0, 768, 771, 777, 806, 0,
293                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
294         /* 0x12 - 1024x768@75Hz */
295         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
296                    1136, 1312, 0, 768, 769, 772, 800, 0,
297                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
298         /* 0x13 - 1024x768@85Hz */
299         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 94500, 1024, 1072,
300                    1168, 1376, 0, 768, 769, 772, 808, 0,
301                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
302         /* 0x14 - 1024x768@120Hz RB */
303         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 115500, 1024, 1072,
304                    1104, 1184, 0, 768, 771, 775, 813, 0,
305                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
306         /* 0x15 - 1152x864@75Hz */
307         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
308                    1344, 1600, 0, 864, 865, 868, 900, 0,
309                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
310         /* 0x55 - 1280x720@60Hz */
311         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
312                    1430, 1650, 0, 720, 725, 730, 750, 0,
313                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
314         /* 0x16 - 1280x768@60Hz RB */
315         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 68250, 1280, 1328,
316                    1360, 1440, 0, 768, 771, 778, 790, 0,
317                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
318         /* 0x17 - 1280x768@60Hz */
319         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
320                    1472, 1664, 0, 768, 771, 778, 798, 0,
321                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
322         /* 0x18 - 1280x768@75Hz */
323         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 102250, 1280, 1360,
324                    1488, 1696, 0, 768, 771, 778, 805, 0,
325                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
326         /* 0x19 - 1280x768@85Hz */
327         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 117500, 1280, 1360,
328                    1496, 1712, 0, 768, 771, 778, 809, 0,
329                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
330         /* 0x1a - 1280x768@120Hz RB */
331         { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 140250, 1280, 1328,
332                    1360, 1440, 0, 768, 771, 778, 813, 0,
333                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
334         /* 0x1b - 1280x800@60Hz RB */
335         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 71000, 1280, 1328,
336                    1360, 1440, 0, 800, 803, 809, 823, 0,
337                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
338         /* 0x1c - 1280x800@60Hz */
339         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
340                    1480, 1680, 0, 800, 803, 809, 831, 0,
341                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
342         /* 0x1d - 1280x800@75Hz */
343         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 106500, 1280, 1360,
344                    1488, 1696, 0, 800, 803, 809, 838, 0,
345                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
346         /* 0x1e - 1280x800@85Hz */
347         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 122500, 1280, 1360,
348                    1496, 1712, 0, 800, 803, 809, 843, 0,
349                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
350         /* 0x1f - 1280x800@120Hz RB */
351         { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 146250, 1280, 1328,
352                    1360, 1440, 0, 800, 803, 809, 847, 0,
353                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
354         /* 0x20 - 1280x960@60Hz */
355         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
356                    1488, 1800, 0, 960, 961, 964, 1000, 0,
357                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
358         /* 0x21 - 1280x960@85Hz */
359         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1344,
360                    1504, 1728, 0, 960, 961, 964, 1011, 0,
361                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
362         /* 0x22 - 1280x960@120Hz RB */
363         { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 175500, 1280, 1328,
364                    1360, 1440, 0, 960, 963, 967, 1017, 0,
365                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
366         /* 0x23 - 1280x1024@60Hz */
367         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
368                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
369                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
370         /* 0x24 - 1280x1024@75Hz */
371         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
372                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
373                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
374         /* 0x25 - 1280x1024@85Hz */
375         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 157500, 1280, 1344,
376                    1504, 1728, 0, 1024, 1025, 1028, 1072, 0,
377                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
378         /* 0x26 - 1280x1024@120Hz RB */
379         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 187250, 1280, 1328,
380                    1360, 1440, 0, 1024, 1027, 1034, 1084, 0,
381                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
382         /* 0x27 - 1360x768@60Hz */
383         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
384                    1536, 1792, 0, 768, 771, 777, 795, 0,
385                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
386         /* 0x28 - 1360x768@120Hz RB */
387         { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 148250, 1360, 1408,
388                    1440, 1520, 0, 768, 771, 776, 813, 0,
389                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
390         /* 0x51 - 1366x768@60Hz */
391         { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 85500, 1366, 1436,
392                    1579, 1792, 0, 768, 771, 774, 798, 0,
393                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
394         /* 0x56 - 1366x768@60Hz */
395         { DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 72000, 1366, 1380,
396                    1436, 1500, 0, 768, 769, 772, 800, 0,
397                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
398         /* 0x29 - 1400x1050@60Hz RB */
399         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 101000, 1400, 1448,
400                    1480, 1560, 0, 1050, 1053, 1057, 1080, 0,
401                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
402         /* 0x2a - 1400x1050@60Hz */
403         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
404                    1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
405                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
406         /* 0x2b - 1400x1050@75Hz */
407         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 156000, 1400, 1504,
408                    1648, 1896, 0, 1050, 1053, 1057, 1099, 0,
409                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
410         /* 0x2c - 1400x1050@85Hz */
411         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 179500, 1400, 1504,
412                    1656, 1912, 0, 1050, 1053, 1057, 1105, 0,
413                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
414         /* 0x2d - 1400x1050@120Hz RB */
415         { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 208000, 1400, 1448,
416                    1480, 1560, 0, 1050, 1053, 1057, 1112, 0,
417                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
418         /* 0x2e - 1440x900@60Hz RB */
419         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 88750, 1440, 1488,
420                    1520, 1600, 0, 900, 903, 909, 926, 0,
421                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
422         /* 0x2f - 1440x900@60Hz */
423         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
424                    1672, 1904, 0, 900, 903, 909, 934, 0,
425                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
426         /* 0x30 - 1440x900@75Hz */
427         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 136750, 1440, 1536,
428                    1688, 1936, 0, 900, 903, 909, 942, 0,
429                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
430         /* 0x31 - 1440x900@85Hz */
431         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 157000, 1440, 1544,
432                    1696, 1952, 0, 900, 903, 909, 948, 0,
433                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
434         /* 0x32 - 1440x900@120Hz RB */
435         { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 182750, 1440, 1488,
436                    1520, 1600, 0, 900, 903, 909, 953, 0,
437                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
438         /* 0x53 - 1600x900@60Hz */
439         { DRM_MODE("1600x900", DRM_MODE_TYPE_DRIVER, 108000, 1600, 1624,
440                    1704, 1800, 0, 900, 901, 904, 1000, 0,
441                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
442         /* 0x33 - 1600x1200@60Hz */
443         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
444                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
445                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
446         /* 0x34 - 1600x1200@65Hz */
447         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 175500, 1600, 1664,
448                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
449                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
450         /* 0x35 - 1600x1200@70Hz */
451         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 189000, 1600, 1664,
452                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
453                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
454         /* 0x36 - 1600x1200@75Hz */
455         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 202500, 1600, 1664,
456                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
457                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
458         /* 0x37 - 1600x1200@85Hz */
459         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 229500, 1600, 1664,
460                    1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
461                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
462         /* 0x38 - 1600x1200@120Hz RB */
463         { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 268250, 1600, 1648,
464                    1680, 1760, 0, 1200, 1203, 1207, 1271, 0,
465                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
466         /* 0x39 - 1680x1050@60Hz RB */
467         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 119000, 1680, 1728,
468                    1760, 1840, 0, 1050, 1053, 1059, 1080, 0,
469                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
470         /* 0x3a - 1680x1050@60Hz */
471         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
472                    1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
473                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
474         /* 0x3b - 1680x1050@75Hz */
475         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 187000, 1680, 1800,
476                    1976, 2272, 0, 1050, 1053, 1059, 1099, 0,
477                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
478         /* 0x3c - 1680x1050@85Hz */
479         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 214750, 1680, 1808,
480                    1984, 2288, 0, 1050, 1053, 1059, 1105, 0,
481                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
482         /* 0x3d - 1680x1050@120Hz RB */
483         { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 245500, 1680, 1728,
484                    1760, 1840, 0, 1050, 1053, 1059, 1112, 0,
485                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
486         /* 0x3e - 1792x1344@60Hz */
487         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
488                    2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
489                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
490         /* 0x3f - 1792x1344@75Hz */
491         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 261000, 1792, 1888,
492                    2104, 2456, 0, 1344, 1345, 1348, 1417, 0,
493                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
494         /* 0x40 - 1792x1344@120Hz RB */
495         { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 333250, 1792, 1840,
496                    1872, 1952, 0, 1344, 1347, 1351, 1423, 0,
497                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
498         /* 0x41 - 1856x1392@60Hz */
499         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
500                    2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
501                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
502         /* 0x42 - 1856x1392@75Hz */
503         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
504                    2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
505                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
506         /* 0x43 - 1856x1392@120Hz RB */
507         { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
508                    1936, 2016, 0, 1392, 1395, 1399, 1474, 0,
509                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
510         /* 0x52 - 1920x1080@60Hz */
511         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
512                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
513                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
514         /* 0x44 - 1920x1200@60Hz RB */
515         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 154000, 1920, 1968,
516                    2000, 2080, 0, 1200, 1203, 1209, 1235, 0,
517                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
518         /* 0x45 - 1920x1200@60Hz */
519         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
520                    2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
521                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
522         /* 0x46 - 1920x1200@75Hz */
523         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 245250, 1920, 2056,
524                    2264, 2608, 0, 1200, 1203, 1209, 1255, 0,
525                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
526         /* 0x47 - 1920x1200@85Hz */
527         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 281250, 1920, 2064,
528                    2272, 2624, 0, 1200, 1203, 1209, 1262, 0,
529                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
530         /* 0x48 - 1920x1200@120Hz RB */
531         { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 317000, 1920, 1968,
532                    2000, 2080, 0, 1200, 1203, 1209, 1271, 0,
533                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
534         /* 0x49 - 1920x1440@60Hz */
535         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
536                    2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
537                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
538         /* 0x4a - 1920x1440@75Hz */
539         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2064,
540                    2288, 2640, 0, 1440, 1441, 1444, 1500, 0,
541                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
542         /* 0x4b - 1920x1440@120Hz RB */
543         { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 380500, 1920, 1968,
544                    2000, 2080, 0, 1440, 1443, 1447, 1525, 0,
545                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
546         /* 0x54 - 2048x1152@60Hz */
547         { DRM_MODE("2048x1152", DRM_MODE_TYPE_DRIVER, 162000, 2048, 2074,
548                    2154, 2250, 0, 1152, 1153, 1156, 1200, 0,
549                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
550         /* 0x4c - 2560x1600@60Hz RB */
551         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 268500, 2560, 2608,
552                    2640, 2720, 0, 1600, 1603, 1609, 1646, 0,
553                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
554         /* 0x4d - 2560x1600@60Hz */
555         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
556                    3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
557                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
558         /* 0x4e - 2560x1600@75Hz */
559         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 443250, 2560, 2768,
560                    3048, 3536, 0, 1600, 1603, 1609, 1672, 0,
561                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
562         /* 0x4f - 2560x1600@85Hz */
563         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 505250, 2560, 2768,
564                    3048, 3536, 0, 1600, 1603, 1609, 1682, 0,
565                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
566         /* 0x50 - 2560x1600@120Hz RB */
567         { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 552750, 2560, 2608,
568                    2640, 2720, 0, 1600, 1603, 1609, 1694, 0,
569                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
570         /* 0x57 - 4096x2160@60Hz RB */
571         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556744, 4096, 4104,
572                    4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
573                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
574         /* 0x58 - 4096x2160@59.94Hz RB */
575         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104,
576                    4136, 4176, 0, 2160, 2208, 2216, 2222, 0,
577                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
578 };
579
580 /*
581  * These more or less come from the DMT spec.  The 720x400 modes are
582  * inferred from historical 80x25 practice.  The 640x480@67 and 832x624@75
583  * modes are old-school Mac modes.  The EDID spec says the 1152x864@75 mode
584  * should be 1152x870, again for the Mac, but instead we use the x864 DMT
585  * mode.
586  *
587  * The DMT modes have been fact-checked; the rest are mild guesses.
588  */
589 static const struct drm_display_mode edid_est_modes[] = {
590         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
591                    968, 1056, 0, 600, 601, 605, 628, 0,
592                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@60Hz */
593         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 36000, 800, 824,
594                    896, 1024, 0, 600, 601, 603,  625, 0,
595                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@56Hz */
596         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 656,
597                    720, 840, 0, 480, 481, 484, 500, 0,
598                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@75Hz */
599         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 31500, 640, 664,
600                    704,  832, 0, 480, 489, 492, 520, 0,
601                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@72Hz */
602         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 30240, 640, 704,
603                    768,  864, 0, 480, 483, 486, 525, 0,
604                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@67Hz */
605         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
606                    752, 800, 0, 480, 490, 492, 525, 0,
607                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 640x480@60Hz */
608         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 35500, 720, 738,
609                    846, 900, 0, 400, 421, 423,  449, 0,
610                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 720x400@88Hz */
611         { DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 28320, 720, 738,
612                    846,  900, 0, 400, 412, 414, 449, 0,
613                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 720x400@70Hz */
614         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 135000, 1280, 1296,
615                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
616                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
617         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 78750, 1024, 1040,
618                    1136, 1312, 0,  768, 769, 772, 800, 0,
619                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1024x768@75Hz */
620         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 75000, 1024, 1048,
621                    1184, 1328, 0,  768, 771, 777, 806, 0,
622                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@70Hz */
623         { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
624                    1184, 1344, 0,  768, 771, 777, 806, 0,
625                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 1024x768@60Hz */
626         { DRM_MODE("1024x768i", DRM_MODE_TYPE_DRIVER,44900, 1024, 1032,
627                    1208, 1264, 0, 768, 768, 776, 817, 0,
628                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_INTERLACE) }, /* 1024x768@43Hz */
629         { DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 57284, 832, 864,
630                    928, 1152, 0, 624, 625, 628, 667, 0,
631                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) }, /* 832x624@75Hz */
632         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 49500, 800, 816,
633                    896, 1056, 0, 600, 601, 604,  625, 0,
634                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@75Hz */
635         { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 50000, 800, 856,
636                    976, 1040, 0, 600, 637, 643, 666, 0,
637                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 800x600@72Hz */
638         { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
639                    1344, 1600, 0,  864, 865, 868, 900, 0,
640                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1152x864@75Hz */
641 };
642
643 struct minimode {
644         short w;
645         short h;
646         short r;
647         short rb;
648 };
649
650 static const struct minimode est3_modes[] = {
651         /* byte 6 */
652         { 640, 350, 85, 0 },
653         { 640, 400, 85, 0 },
654         { 720, 400, 85, 0 },
655         { 640, 480, 85, 0 },
656         { 848, 480, 60, 0 },
657         { 800, 600, 85, 0 },
658         { 1024, 768, 85, 0 },
659         { 1152, 864, 75, 0 },
660         /* byte 7 */
661         { 1280, 768, 60, 1 },
662         { 1280, 768, 60, 0 },
663         { 1280, 768, 75, 0 },
664         { 1280, 768, 85, 0 },
665         { 1280, 960, 60, 0 },
666         { 1280, 960, 85, 0 },
667         { 1280, 1024, 60, 0 },
668         { 1280, 1024, 85, 0 },
669         /* byte 8 */
670         { 1360, 768, 60, 0 },
671         { 1440, 900, 60, 1 },
672         { 1440, 900, 60, 0 },
673         { 1440, 900, 75, 0 },
674         { 1440, 900, 85, 0 },
675         { 1400, 1050, 60, 1 },
676         { 1400, 1050, 60, 0 },
677         { 1400, 1050, 75, 0 },
678         /* byte 9 */
679         { 1400, 1050, 85, 0 },
680         { 1680, 1050, 60, 1 },
681         { 1680, 1050, 60, 0 },
682         { 1680, 1050, 75, 0 },
683         { 1680, 1050, 85, 0 },
684         { 1600, 1200, 60, 0 },
685         { 1600, 1200, 65, 0 },
686         { 1600, 1200, 70, 0 },
687         /* byte 10 */
688         { 1600, 1200, 75, 0 },
689         { 1600, 1200, 85, 0 },
690         { 1792, 1344, 60, 0 },
691         { 1792, 1344, 75, 0 },
692         { 1856, 1392, 60, 0 },
693         { 1856, 1392, 75, 0 },
694         { 1920, 1200, 60, 1 },
695         { 1920, 1200, 60, 0 },
696         /* byte 11 */
697         { 1920, 1200, 75, 0 },
698         { 1920, 1200, 85, 0 },
699         { 1920, 1440, 60, 0 },
700         { 1920, 1440, 75, 0 },
701 };
702
703 static const struct minimode extra_modes[] = {
704         { 1024, 576,  60, 0 },
705         { 1366, 768,  60, 0 },
706         { 1600, 900,  60, 0 },
707         { 1680, 945,  60, 0 },
708         { 1920, 1080, 60, 0 },
709         { 2048, 1152, 60, 0 },
710         { 2048, 1536, 60, 0 },
711 };
712
713 /*
714  * From CEA/CTA-861 spec.
715  *
716  * Do not access directly, instead always use cea_mode_for_vic().
717  */
718 static const struct drm_display_mode edid_cea_modes_1[] = {
719         /* 1 - 640x480@60Hz 4:3 */
720         { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
721                    752, 800, 0, 480, 490, 492, 525, 0,
722                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
723           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
724         /* 2 - 720x480@60Hz 4:3 */
725         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
726                    798, 858, 0, 480, 489, 495, 525, 0,
727                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
728           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
729         /* 3 - 720x480@60Hz 16:9 */
730         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
731                    798, 858, 0, 480, 489, 495, 525, 0,
732                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
733           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
734         /* 4 - 1280x720@60Hz 16:9 */
735         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
736                    1430, 1650, 0, 720, 725, 730, 750, 0,
737                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
738           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
739         /* 5 - 1920x1080i@60Hz 16:9 */
740         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
741                    2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
742                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
743                    DRM_MODE_FLAG_INTERLACE),
744           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
745         /* 6 - 720(1440)x480i@60Hz 4:3 */
746         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
747                    801, 858, 0, 480, 488, 494, 525, 0,
748                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
749                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
750           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
751         /* 7 - 720(1440)x480i@60Hz 16:9 */
752         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
753                    801, 858, 0, 480, 488, 494, 525, 0,
754                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
755                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
756           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
757         /* 8 - 720(1440)x240@60Hz 4:3 */
758         { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
759                    801, 858, 0, 240, 244, 247, 262, 0,
760                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
761                    DRM_MODE_FLAG_DBLCLK),
762           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
763         /* 9 - 720(1440)x240@60Hz 16:9 */
764         { DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500, 720, 739,
765                    801, 858, 0, 240, 244, 247, 262, 0,
766                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
767                    DRM_MODE_FLAG_DBLCLK),
768           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
769         /* 10 - 2880x480i@60Hz 4:3 */
770         { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
771                    3204, 3432, 0, 480, 488, 494, 525, 0,
772                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
773                    DRM_MODE_FLAG_INTERLACE),
774           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
775         /* 11 - 2880x480i@60Hz 16:9 */
776         { DRM_MODE("2880x480i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
777                    3204, 3432, 0, 480, 488, 494, 525, 0,
778                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
779                    DRM_MODE_FLAG_INTERLACE),
780           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
781         /* 12 - 2880x240@60Hz 4:3 */
782         { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
783                    3204, 3432, 0, 240, 244, 247, 262, 0,
784                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
785           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
786         /* 13 - 2880x240@60Hz 16:9 */
787         { DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
788                    3204, 3432, 0, 240, 244, 247, 262, 0,
789                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
790           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
791         /* 14 - 1440x480@60Hz 4:3 */
792         { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
793                    1596, 1716, 0, 480, 489, 495, 525, 0,
794                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
795           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
796         /* 15 - 1440x480@60Hz 16:9 */
797         { DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
798                    1596, 1716, 0, 480, 489, 495, 525, 0,
799                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
800           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
801         /* 16 - 1920x1080@60Hz 16:9 */
802         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
803                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
804                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
805           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
806         /* 17 - 720x576@50Hz 4:3 */
807         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
808                    796, 864, 0, 576, 581, 586, 625, 0,
809                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
810           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
811         /* 18 - 720x576@50Hz 16:9 */
812         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
813                    796, 864, 0, 576, 581, 586, 625, 0,
814                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
815           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
816         /* 19 - 1280x720@50Hz 16:9 */
817         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
818                    1760, 1980, 0, 720, 725, 730, 750, 0,
819                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
820           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
821         /* 20 - 1920x1080i@50Hz 16:9 */
822         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
823                    2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
824                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
825                    DRM_MODE_FLAG_INTERLACE),
826           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
827         /* 21 - 720(1440)x576i@50Hz 4:3 */
828         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
829                    795, 864, 0, 576, 580, 586, 625, 0,
830                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
831                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
832           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
833         /* 22 - 720(1440)x576i@50Hz 16:9 */
834         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
835                    795, 864, 0, 576, 580, 586, 625, 0,
836                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
837                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
838           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
839         /* 23 - 720(1440)x288@50Hz 4:3 */
840         { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
841                    795, 864, 0, 288, 290, 293, 312, 0,
842                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
843                    DRM_MODE_FLAG_DBLCLK),
844           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
845         /* 24 - 720(1440)x288@50Hz 16:9 */
846         { DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500, 720, 732,
847                    795, 864, 0, 288, 290, 293, 312, 0,
848                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
849                    DRM_MODE_FLAG_DBLCLK),
850           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
851         /* 25 - 2880x576i@50Hz 4:3 */
852         { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
853                    3180, 3456, 0, 576, 580, 586, 625, 0,
854                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
855                    DRM_MODE_FLAG_INTERLACE),
856           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
857         /* 26 - 2880x576i@50Hz 16:9 */
858         { DRM_MODE("2880x576i", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
859                    3180, 3456, 0, 576, 580, 586, 625, 0,
860                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
861                    DRM_MODE_FLAG_INTERLACE),
862           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
863         /* 27 - 2880x288@50Hz 4:3 */
864         { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
865                    3180, 3456, 0, 288, 290, 293, 312, 0,
866                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
867           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
868         /* 28 - 2880x288@50Hz 16:9 */
869         { DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
870                    3180, 3456, 0, 288, 290, 293, 312, 0,
871                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
872           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
873         /* 29 - 1440x576@50Hz 4:3 */
874         { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
875                    1592, 1728, 0, 576, 581, 586, 625, 0,
876                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
877           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
878         /* 30 - 1440x576@50Hz 16:9 */
879         { DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
880                    1592, 1728, 0, 576, 581, 586, 625, 0,
881                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
882           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
883         /* 31 - 1920x1080@50Hz 16:9 */
884         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
885                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
886                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
887           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
888         /* 32 - 1920x1080@24Hz 16:9 */
889         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
890                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
891                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
892           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
893         /* 33 - 1920x1080@25Hz 16:9 */
894         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
895                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
896                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
897           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
898         /* 34 - 1920x1080@30Hz 16:9 */
899         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
900                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
901                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
902           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
903         /* 35 - 2880x480@60Hz 4:3 */
904         { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
905                    3192, 3432, 0, 480, 489, 495, 525, 0,
906                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
907           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
908         /* 36 - 2880x480@60Hz 16:9 */
909         { DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
910                    3192, 3432, 0, 480, 489, 495, 525, 0,
911                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
912           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
913         /* 37 - 2880x576@50Hz 4:3 */
914         { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
915                    3184, 3456, 0, 576, 581, 586, 625, 0,
916                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
917           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
918         /* 38 - 2880x576@50Hz 16:9 */
919         { DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
920                    3184, 3456, 0, 576, 581, 586, 625, 0,
921                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
922           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
923         /* 39 - 1920x1080i@50Hz 16:9 */
924         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
925                    2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
926                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
927                    DRM_MODE_FLAG_INTERLACE),
928           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
929         /* 40 - 1920x1080i@100Hz 16:9 */
930         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
931                    2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
932                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
933                    DRM_MODE_FLAG_INTERLACE),
934           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
935         /* 41 - 1280x720@100Hz 16:9 */
936         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
937                    1760, 1980, 0, 720, 725, 730, 750, 0,
938                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
939           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
940         /* 42 - 720x576@100Hz 4:3 */
941         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
942                    796, 864, 0, 576, 581, 586, 625, 0,
943                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
944           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
945         /* 43 - 720x576@100Hz 16:9 */
946         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
947                    796, 864, 0, 576, 581, 586, 625, 0,
948                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
949           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
950         /* 44 - 720(1440)x576i@100Hz 4:3 */
951         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
952                    795, 864, 0, 576, 580, 586, 625, 0,
953                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
954                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
955           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
956         /* 45 - 720(1440)x576i@100Hz 16:9 */
957         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
958                    795, 864, 0, 576, 580, 586, 625, 0,
959                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
960                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
961           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
962         /* 46 - 1920x1080i@120Hz 16:9 */
963         { DRM_MODE("1920x1080i", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
964                    2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
965                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
966                    DRM_MODE_FLAG_INTERLACE),
967           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
968         /* 47 - 1280x720@120Hz 16:9 */
969         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
970                    1430, 1650, 0, 720, 725, 730, 750, 0,
971                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
972           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
973         /* 48 - 720x480@120Hz 4:3 */
974         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
975                    798, 858, 0, 480, 489, 495, 525, 0,
976                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
977           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
978         /* 49 - 720x480@120Hz 16:9 */
979         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
980                    798, 858, 0, 480, 489, 495, 525, 0,
981                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
982           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
983         /* 50 - 720(1440)x480i@120Hz 4:3 */
984         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
985                    801, 858, 0, 480, 488, 494, 525, 0,
986                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
987                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
988           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
989         /* 51 - 720(1440)x480i@120Hz 16:9 */
990         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 27000, 720, 739,
991                    801, 858, 0, 480, 488, 494, 525, 0,
992                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
993                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
994           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
995         /* 52 - 720x576@200Hz 4:3 */
996         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
997                    796, 864, 0, 576, 581, 586, 625, 0,
998                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
999           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1000         /* 53 - 720x576@200Hz 16:9 */
1001         { DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
1002                    796, 864, 0, 576, 581, 586, 625, 0,
1003                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1004           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1005         /* 54 - 720(1440)x576i@200Hz 4:3 */
1006         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1007                    795, 864, 0, 576, 580, 586, 625, 0,
1008                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1009                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1010           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1011         /* 55 - 720(1440)x576i@200Hz 16:9 */
1012         { DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
1013                    795, 864, 0, 576, 580, 586, 625, 0,
1014                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1015                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1016           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1017         /* 56 - 720x480@240Hz 4:3 */
1018         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1019                    798, 858, 0, 480, 489, 495, 525, 0,
1020                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1021           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1022         /* 57 - 720x480@240Hz 16:9 */
1023         { DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
1024                    798, 858, 0, 480, 489, 495, 525, 0,
1025                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC),
1026           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1027         /* 58 - 720(1440)x480i@240Hz 4:3 */
1028         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1029                    801, 858, 0, 480, 488, 494, 525, 0,
1030                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1031                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1032           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_4_3, },
1033         /* 59 - 720(1440)x480i@240Hz 16:9 */
1034         { DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 54000, 720, 739,
1035                    801, 858, 0, 480, 488, 494, 525, 0,
1036                    DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
1037                    DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_DBLCLK),
1038           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1039         /* 60 - 1280x720@24Hz 16:9 */
1040         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1041                    3080, 3300, 0, 720, 725, 730, 750, 0,
1042                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1043           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1044         /* 61 - 1280x720@25Hz 16:9 */
1045         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1046                    3740, 3960, 0, 720, 725, 730, 750, 0,
1047                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1048           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1049         /* 62 - 1280x720@30Hz 16:9 */
1050         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1051                    3080, 3300, 0, 720, 725, 730, 750, 0,
1052                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1053           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1054         /* 63 - 1920x1080@120Hz 16:9 */
1055         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1056                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1057                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1058           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1059         /* 64 - 1920x1080@100Hz 16:9 */
1060         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1061                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1062                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1063           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1064         /* 65 - 1280x720@24Hz 64:27 */
1065         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
1066                    3080, 3300, 0, 720, 725, 730, 750, 0,
1067                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1068           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1069         /* 66 - 1280x720@25Hz 64:27 */
1070         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
1071                    3740, 3960, 0, 720, 725, 730, 750, 0,
1072                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1073           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1074         /* 67 - 1280x720@30Hz 64:27 */
1075         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
1076                    3080, 3300, 0, 720, 725, 730, 750, 0,
1077                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1078           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1079         /* 68 - 1280x720@50Hz 64:27 */
1080         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
1081                    1760, 1980, 0, 720, 725, 730, 750, 0,
1082                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1083           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1084         /* 69 - 1280x720@60Hz 64:27 */
1085         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
1086                    1430, 1650, 0, 720, 725, 730, 750, 0,
1087                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1088           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1089         /* 70 - 1280x720@100Hz 64:27 */
1090         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
1091                    1760, 1980, 0, 720, 725, 730, 750, 0,
1092                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1093           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1094         /* 71 - 1280x720@120Hz 64:27 */
1095         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
1096                    1430, 1650, 0, 720, 725, 730, 750, 0,
1097                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1098           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1099         /* 72 - 1920x1080@24Hz 64:27 */
1100         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
1101                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1102                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1103           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1104         /* 73 - 1920x1080@25Hz 64:27 */
1105         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
1106                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1107                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1108           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1109         /* 74 - 1920x1080@30Hz 64:27 */
1110         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
1111                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1112                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1113           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1114         /* 75 - 1920x1080@50Hz 64:27 */
1115         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
1116                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1117                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1118           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1119         /* 76 - 1920x1080@60Hz 64:27 */
1120         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
1121                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1122                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1123           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1124         /* 77 - 1920x1080@100Hz 64:27 */
1125         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
1126                    2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
1127                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1128           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1129         /* 78 - 1920x1080@120Hz 64:27 */
1130         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
1131                    2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
1132                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1133           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1134         /* 79 - 1680x720@24Hz 64:27 */
1135         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 3040,
1136                    3080, 3300, 0, 720, 725, 730, 750, 0,
1137                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1138           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1139         /* 80 - 1680x720@25Hz 64:27 */
1140         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2908,
1141                    2948, 3168, 0, 720, 725, 730, 750, 0,
1142                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1143           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1144         /* 81 - 1680x720@30Hz 64:27 */
1145         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 59400, 1680, 2380,
1146                    2420, 2640, 0, 720, 725, 730, 750, 0,
1147                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1148           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1149         /* 82 - 1680x720@50Hz 64:27 */
1150         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 82500, 1680, 1940,
1151                    1980, 2200, 0, 720, 725, 730, 750, 0,
1152                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1153           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1154         /* 83 - 1680x720@60Hz 64:27 */
1155         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 1940,
1156                    1980, 2200, 0, 720, 725, 730, 750, 0,
1157                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1158           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1159         /* 84 - 1680x720@100Hz 64:27 */
1160         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 165000, 1680, 1740,
1161                    1780, 2000, 0, 720, 725, 730, 825, 0,
1162                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1163           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1164         /* 85 - 1680x720@120Hz 64:27 */
1165         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 198000, 1680, 1740,
1166                    1780, 2000, 0, 720, 725, 730, 825, 0,
1167                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1168           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1169         /* 86 - 2560x1080@24Hz 64:27 */
1170         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 99000, 2560, 3558,
1171                    3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1172                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1173           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1174         /* 87 - 2560x1080@25Hz 64:27 */
1175         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 90000, 2560, 3008,
1176                    3052, 3200, 0, 1080, 1084, 1089, 1125, 0,
1177                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1178           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1179         /* 88 - 2560x1080@30Hz 64:27 */
1180         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 118800, 2560, 3328,
1181                    3372, 3520, 0, 1080, 1084, 1089, 1125, 0,
1182                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1183           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1184         /* 89 - 2560x1080@50Hz 64:27 */
1185         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 185625, 2560, 3108,
1186                    3152, 3300, 0, 1080, 1084, 1089, 1125, 0,
1187                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1188           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1189         /* 90 - 2560x1080@60Hz 64:27 */
1190         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 2808,
1191                    2852, 3000, 0, 1080, 1084, 1089, 1100, 0,
1192                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1193           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1194         /* 91 - 2560x1080@100Hz 64:27 */
1195         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 371250, 2560, 2778,
1196                    2822, 2970, 0, 1080, 1084, 1089, 1250, 0,
1197                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1198           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1199         /* 92 - 2560x1080@120Hz 64:27 */
1200         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 495000, 2560, 3108,
1201                    3152, 3300, 0, 1080, 1084, 1089, 1250, 0,
1202                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1203           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1204         /* 93 - 3840x2160@24Hz 16:9 */
1205         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1206                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1207                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1208           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1209         /* 94 - 3840x2160@25Hz 16:9 */
1210         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1211                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1212                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1213           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1214         /* 95 - 3840x2160@30Hz 16:9 */
1215         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1216                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1217                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1218           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1219         /* 96 - 3840x2160@50Hz 16:9 */
1220         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1221                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1222                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1223           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1224         /* 97 - 3840x2160@60Hz 16:9 */
1225         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1226                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1227                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1228           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1229         /* 98 - 4096x2160@24Hz 256:135 */
1230         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5116,
1231                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1232                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1233           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1234         /* 99 - 4096x2160@25Hz 256:135 */
1235         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 5064,
1236                    5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1237                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1238           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1239         /* 100 - 4096x2160@30Hz 256:135 */
1240         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000, 4096, 4184,
1241                    4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1242                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1243           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1244         /* 101 - 4096x2160@50Hz 256:135 */
1245         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5064,
1246                    5152, 5280, 0, 2160, 2168, 2178, 2250, 0,
1247                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1248           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1249         /* 102 - 4096x2160@60Hz 256:135 */
1250         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 4184,
1251                    4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1252                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1253           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1254         /* 103 - 3840x2160@24Hz 64:27 */
1255         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 5116,
1256                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1257                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1258           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1259         /* 104 - 3840x2160@25Hz 64:27 */
1260         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4896,
1261                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1262                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1263           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1264         /* 105 - 3840x2160@30Hz 64:27 */
1265         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000, 3840, 4016,
1266                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1267                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1268           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1269         /* 106 - 3840x2160@50Hz 64:27 */
1270         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4896,
1271                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1272                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1273           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1274         /* 107 - 3840x2160@60Hz 64:27 */
1275         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 4016,
1276                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1277                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1278           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1279         /* 108 - 1280x720@48Hz 16:9 */
1280         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1281                    2280, 2500, 0, 720, 725, 730, 750, 0,
1282                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1283           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1284         /* 109 - 1280x720@48Hz 64:27 */
1285         { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 90000, 1280, 2240,
1286                    2280, 2500, 0, 720, 725, 730, 750, 0,
1287                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1288           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1289         /* 110 - 1680x720@48Hz 64:27 */
1290         { DRM_MODE("1680x720", DRM_MODE_TYPE_DRIVER, 99000, 1680, 2490,
1291                    2530, 2750, 0, 720, 725, 730, 750, 0,
1292                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1293           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1294         /* 111 - 1920x1080@48Hz 16:9 */
1295         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1296                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1297                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1298           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1299         /* 112 - 1920x1080@48Hz 64:27 */
1300         { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2558,
1301                    2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
1302                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1303           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1304         /* 113 - 2560x1080@48Hz 64:27 */
1305         { DRM_MODE("2560x1080", DRM_MODE_TYPE_DRIVER, 198000, 2560, 3558,
1306                    3602, 3750, 0, 1080, 1084, 1089, 1100, 0,
1307                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1308           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1309         /* 114 - 3840x2160@48Hz 16:9 */
1310         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1311                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1312                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1313           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1314         /* 115 - 4096x2160@48Hz 256:135 */
1315         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 594000, 4096, 5116,
1316                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1317                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1318           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1319         /* 116 - 3840x2160@48Hz 64:27 */
1320         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 594000, 3840, 5116,
1321                    5204, 5500, 0, 2160, 2168, 2178, 2250, 0,
1322                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1323           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1324         /* 117 - 3840x2160@100Hz 16:9 */
1325         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1326                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1327                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1328           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1329         /* 118 - 3840x2160@120Hz 16:9 */
1330         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1331                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1332                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1333           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1334         /* 119 - 3840x2160@100Hz 64:27 */
1335         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4896,
1336                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1337                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1338           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1339         /* 120 - 3840x2160@120Hz 64:27 */
1340         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 1188000, 3840, 4016,
1341                    4104, 4400, 0, 2160, 2168, 2178, 2250, 0,
1342                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1343           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1344         /* 121 - 5120x2160@24Hz 64:27 */
1345         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 7116,
1346                    7204, 7500, 0, 2160, 2168, 2178, 2200, 0,
1347                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1348           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1349         /* 122 - 5120x2160@25Hz 64:27 */
1350         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 6816,
1351                    6904, 7200, 0, 2160, 2168, 2178, 2200, 0,
1352                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1353           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1354         /* 123 - 5120x2160@30Hz 64:27 */
1355         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 396000, 5120, 5784,
1356                    5872, 6000, 0, 2160, 2168, 2178, 2200, 0,
1357                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1358           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1359         /* 124 - 5120x2160@48Hz 64:27 */
1360         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5866,
1361                    5954, 6250, 0, 2160, 2168, 2178, 2475, 0,
1362                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1363           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1364         /* 125 - 5120x2160@50Hz 64:27 */
1365         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 6216,
1366                    6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1367                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1368           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1369         /* 126 - 5120x2160@60Hz 64:27 */
1370         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 742500, 5120, 5284,
1371                    5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1372                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1373           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1374         /* 127 - 5120x2160@100Hz 64:27 */
1375         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 6216,
1376                    6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
1377                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1378           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1379 };
1380
1381 /*
1382  * From CEA/CTA-861 spec.
1383  *
1384  * Do not access directly, instead always use cea_mode_for_vic().
1385  */
1386 static const struct drm_display_mode edid_cea_modes_193[] = {
1387         /* 193 - 5120x2160@120Hz 64:27 */
1388         { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 5284,
1389                    5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
1390                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1391           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1392         /* 194 - 7680x4320@24Hz 16:9 */
1393         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1394                    10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1395                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1396           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1397         /* 195 - 7680x4320@25Hz 16:9 */
1398         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1399                    10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1400                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1401           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1402         /* 196 - 7680x4320@30Hz 16:9 */
1403         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1404                    8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1405                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1406           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1407         /* 197 - 7680x4320@48Hz 16:9 */
1408         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1409                    10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1410                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1411           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1412         /* 198 - 7680x4320@50Hz 16:9 */
1413         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1414                    10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1415                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1416           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1417         /* 199 - 7680x4320@60Hz 16:9 */
1418         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1419                    8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1420                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1421           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1422         /* 200 - 7680x4320@100Hz 16:9 */
1423         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1424                    9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1425                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1426           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1427         /* 201 - 7680x4320@120Hz 16:9 */
1428         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1429                    8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1430                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1431           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1432         /* 202 - 7680x4320@24Hz 64:27 */
1433         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
1434                    10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1435                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1436           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1437         /* 203 - 7680x4320@25Hz 64:27 */
1438         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
1439                    10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1440                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1441           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1442         /* 204 - 7680x4320@30Hz 64:27 */
1443         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
1444                    8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1445                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1446           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1447         /* 205 - 7680x4320@48Hz 64:27 */
1448         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
1449                    10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
1450                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1451           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1452         /* 206 - 7680x4320@50Hz 64:27 */
1453         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
1454                    10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
1455                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1456           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1457         /* 207 - 7680x4320@60Hz 64:27 */
1458         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
1459                    8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
1460                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1461           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1462         /* 208 - 7680x4320@100Hz 64:27 */
1463         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
1464                    9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
1465                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1466           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1467         /* 209 - 7680x4320@120Hz 64:27 */
1468         { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
1469                    8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
1470                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1471           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1472         /* 210 - 10240x4320@24Hz 64:27 */
1473         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 11732,
1474                    11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1475                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1476           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1477         /* 211 - 10240x4320@25Hz 64:27 */
1478         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 12732,
1479                    12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1480                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1481           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1482         /* 212 - 10240x4320@30Hz 64:27 */
1483         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 10528,
1484                    10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1485                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1486           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1487         /* 213 - 10240x4320@48Hz 64:27 */
1488         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 11732,
1489                    11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
1490                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1491           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1492         /* 214 - 10240x4320@50Hz 64:27 */
1493         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 12732,
1494                    12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
1495                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1496           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1497         /* 215 - 10240x4320@60Hz 64:27 */
1498         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 10528,
1499                    10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1500                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1501           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1502         /* 216 - 10240x4320@100Hz 64:27 */
1503         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 12432,
1504                    12608, 13200, 0, 4320, 4336, 4356, 4500, 0,
1505                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1506           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1507         /* 217 - 10240x4320@120Hz 64:27 */
1508         { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 10528,
1509                    10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
1510                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1511           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
1512         /* 218 - 4096x2160@100Hz 256:135 */
1513         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4896,
1514                    4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
1515                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1516           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1517         /* 219 - 4096x2160@120Hz 256:135 */
1518         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4184,
1519                    4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
1520                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1521           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1522 };
1523
1524 /*
1525  * HDMI 1.4 4k modes. Index using the VIC.
1526  */
1527 static const struct drm_display_mode edid_4k_modes[] = {
1528         /* 0 - dummy, VICs start at 1 */
1529         { },
1530         /* 1 - 3840x2160@30Hz */
1531         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1532                    3840, 4016, 4104, 4400, 0,
1533                    2160, 2168, 2178, 2250, 0,
1534                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1535           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1536         /* 2 - 3840x2160@25Hz */
1537         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1538                    3840, 4896, 4984, 5280, 0,
1539                    2160, 2168, 2178, 2250, 0,
1540                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1541           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1542         /* 3 - 3840x2160@24Hz */
1543         { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 297000,
1544                    3840, 5116, 5204, 5500, 0,
1545                    2160, 2168, 2178, 2250, 0,
1546                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1547           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
1548         /* 4 - 4096x2160@24Hz (SMPTE) */
1549         { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 297000,
1550                    4096, 5116, 5204, 5500, 0,
1551                    2160, 2168, 2178, 2250, 0,
1552                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
1553           .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
1554 };
1555
1556 /*** DDC fetch and block validation ***/
1557
1558 static const u8 edid_header[] = {
1559         0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00
1560 };
1561
1562 /**
1563  * drm_edid_header_is_valid - sanity check the header of the base EDID block
1564  * @raw_edid: pointer to raw base EDID block
1565  *
1566  * Sanity check the header of the base EDID block.
1567  *
1568  * Return: 8 if the header is perfect, down to 0 if it's totally wrong.
1569  */
1570 int drm_edid_header_is_valid(const u8 *raw_edid)
1571 {
1572         int i, score = 0;
1573
1574         for (i = 0; i < sizeof(edid_header); i++)
1575                 if (raw_edid[i] == edid_header[i])
1576                         score++;
1577
1578         return score;
1579 }
1580 EXPORT_SYMBOL(drm_edid_header_is_valid);
1581
1582 static int edid_fixup __read_mostly = 6;
1583 module_param_named(edid_fixup, edid_fixup, int, 0400);
1584 MODULE_PARM_DESC(edid_fixup,
1585                  "Minimum number of valid EDID header bytes (0-8, default 6)");
1586
1587 static int validate_displayid(u8 *displayid, int length, int idx);
1588
1589 static int drm_edid_block_checksum(const u8 *raw_edid)
1590 {
1591         int i;
1592         u8 csum = 0, crc = 0;
1593
1594         for (i = 0; i < EDID_LENGTH - 1; i++)
1595                 csum += raw_edid[i];
1596
1597         crc = 0x100 - csum;
1598
1599         return crc;
1600 }
1601
1602 static bool drm_edid_block_checksum_diff(const u8 *raw_edid, u8 real_checksum)
1603 {
1604         if (raw_edid[EDID_LENGTH - 1] != real_checksum)
1605                 return true;
1606         else
1607                 return false;
1608 }
1609
1610 static bool drm_edid_is_zero(const u8 *in_edid, int length)
1611 {
1612         if (memchr_inv(in_edid, 0, length))
1613                 return false;
1614
1615         return true;
1616 }
1617
1618 /**
1619  * drm_edid_are_equal - compare two edid blobs.
1620  * @edid1: pointer to first blob
1621  * @edid2: pointer to second blob
1622  * This helper can be used during probing to determine if
1623  * edid had changed.
1624  */
1625 bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2)
1626 {
1627         int edid1_len, edid2_len;
1628         bool edid1_present = edid1 != NULL;
1629         bool edid2_present = edid2 != NULL;
1630
1631         if (edid1_present != edid2_present)
1632                 return false;
1633
1634         if (edid1) {
1635                 edid1_len = EDID_LENGTH * (1 + edid1->extensions);
1636                 edid2_len = EDID_LENGTH * (1 + edid2->extensions);
1637
1638                 if (edid1_len != edid2_len)
1639                         return false;
1640
1641                 if (memcmp(edid1, edid2, edid1_len))
1642                         return false;
1643         }
1644
1645         return true;
1646 }
1647 EXPORT_SYMBOL(drm_edid_are_equal);
1648
1649 /**
1650  * drm_edid_block_valid - Sanity check the EDID block (base or extension)
1651  * @raw_edid: pointer to raw EDID block
1652  * @block: type of block to validate (0 for base, extension otherwise)
1653  * @print_bad_edid: if true, dump bad EDID blocks to the console
1654  * @edid_corrupt: if true, the header or checksum is invalid
1655  *
1656  * Validate a base or extension EDID block and optionally dump bad blocks to
1657  * the console.
1658  *
1659  * Return: True if the block is valid, false otherwise.
1660  */
1661 bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid,
1662                           bool *edid_corrupt)
1663 {
1664         u8 csum;
1665         struct edid *edid = (struct edid *)raw_edid;
1666
1667         if (WARN_ON(!raw_edid))
1668                 return false;
1669
1670         if (edid_fixup > 8 || edid_fixup < 0)
1671                 edid_fixup = 6;
1672
1673         if (block == 0) {
1674                 int score = drm_edid_header_is_valid(raw_edid);
1675
1676                 if (score == 8) {
1677                         if (edid_corrupt)
1678                                 *edid_corrupt = false;
1679                 } else if (score >= edid_fixup) {
1680                         /* Displayport Link CTS Core 1.2 rev1.1 test 4.2.2.6
1681                          * The corrupt flag needs to be set here otherwise, the
1682                          * fix-up code here will correct the problem, the
1683                          * checksum is correct and the test fails
1684                          */
1685                         if (edid_corrupt)
1686                                 *edid_corrupt = true;
1687                         DRM_DEBUG("Fixing EDID header, your hardware may be failing\n");
1688                         memcpy(raw_edid, edid_header, sizeof(edid_header));
1689                 } else {
1690                         if (edid_corrupt)
1691                                 *edid_corrupt = true;
1692                         goto bad;
1693                 }
1694         }
1695
1696         csum = drm_edid_block_checksum(raw_edid);
1697         if (drm_edid_block_checksum_diff(raw_edid, csum)) {
1698                 if (edid_corrupt)
1699                         *edid_corrupt = true;
1700
1701                 /* allow CEA to slide through, switches mangle this */
1702                 if (raw_edid[0] == CEA_EXT) {
1703                         DRM_DEBUG("EDID checksum is invalid, remainder is %d\n", csum);
1704                         DRM_DEBUG("Assuming a KVM switch modified the CEA block but left the original checksum\n");
1705                 } else {
1706                         if (print_bad_edid)
1707                                 DRM_NOTE("EDID checksum is invalid, remainder is %d\n", csum);
1708
1709                         goto bad;
1710                 }
1711         }
1712
1713         /* per-block-type checks */
1714         switch (raw_edid[0]) {
1715         case 0: /* base */
1716                 if (edid->version != 1) {
1717                         DRM_NOTE("EDID has major version %d, instead of 1\n", edid->version);
1718                         goto bad;
1719                 }
1720
1721                 if (edid->revision > 4)
1722                         DRM_DEBUG("EDID minor > 4, assuming backward compatibility\n");
1723                 break;
1724
1725         default:
1726                 break;
1727         }
1728
1729         return true;
1730
1731 bad:
1732         if (print_bad_edid) {
1733                 if (drm_edid_is_zero(raw_edid, EDID_LENGTH)) {
1734                         pr_notice("EDID block is all zeroes\n");
1735                 } else {
1736                         pr_notice("Raw EDID:\n");
1737                         print_hex_dump(KERN_NOTICE,
1738                                        " \t", DUMP_PREFIX_NONE, 16, 1,
1739                                        raw_edid, EDID_LENGTH, false);
1740                 }
1741         }
1742         return false;
1743 }
1744 EXPORT_SYMBOL(drm_edid_block_valid);
1745
1746 /**
1747  * drm_edid_is_valid - sanity check EDID data
1748  * @edid: EDID data
1749  *
1750  * Sanity-check an entire EDID record (including extensions)
1751  *
1752  * Return: True if the EDID data is valid, false otherwise.
1753  */
1754 bool drm_edid_is_valid(struct edid *edid)
1755 {
1756         int i;
1757         u8 *raw = (u8 *)edid;
1758
1759         if (!edid)
1760                 return false;
1761
1762         for (i = 0; i <= edid->extensions; i++)
1763                 if (!drm_edid_block_valid(raw + i * EDID_LENGTH, i, true, NULL))
1764                         return false;
1765
1766         return true;
1767 }
1768 EXPORT_SYMBOL(drm_edid_is_valid);
1769
1770 #define DDC_SEGMENT_ADDR 0x30
1771 /**
1772  * drm_do_probe_ddc_edid() - get EDID information via I2C
1773  * @data: I2C device adapter
1774  * @buf: EDID data buffer to be filled
1775  * @block: 128 byte EDID block to start fetching from
1776  * @len: EDID data buffer length to fetch
1777  *
1778  * Try to fetch EDID information by calling I2C driver functions.
1779  *
1780  * Return: 0 on success or -1 on failure.
1781  */
1782 static int
1783 drm_do_probe_ddc_edid(void *data, u8 *buf, unsigned int block, size_t len)
1784 {
1785         struct i2c_adapter *adapter = data;
1786         unsigned char start = block * EDID_LENGTH;
1787         unsigned char segment = block >> 1;
1788         unsigned char xfers = segment ? 3 : 2;
1789         int ret, retries = 5;
1790
1791         /*
1792          * The core I2C driver will automatically retry the transfer if the
1793          * adapter reports EAGAIN. However, we find that bit-banging transfers
1794          * are susceptible to errors under a heavily loaded machine and
1795          * generate spurious NAKs and timeouts. Retrying the transfer
1796          * of the individual block a few times seems to overcome this.
1797          */
1798         do {
1799                 struct i2c_msg msgs[] = {
1800                         {
1801                                 .addr   = DDC_SEGMENT_ADDR,
1802                                 .flags  = 0,
1803                                 .len    = 1,
1804                                 .buf    = &segment,
1805                         }, {
1806                                 .addr   = DDC_ADDR,
1807                                 .flags  = 0,
1808                                 .len    = 1,
1809                                 .buf    = &start,
1810                         }, {
1811                                 .addr   = DDC_ADDR,
1812                                 .flags  = I2C_M_RD,
1813                                 .len    = len,
1814                                 .buf    = buf,
1815                         }
1816                 };
1817
1818                 /*
1819                  * Avoid sending the segment addr to not upset non-compliant
1820                  * DDC monitors.
1821                  */
1822                 ret = i2c_transfer(adapter, &msgs[3 - xfers], xfers);
1823
1824                 if (ret == -ENXIO) {
1825                         DRM_DEBUG_KMS("drm: skipping non-existent adapter %s\n",
1826                                         adapter->name);
1827                         break;
1828                 }
1829         } while (ret != xfers && --retries);
1830
1831         return ret == xfers ? 0 : -1;
1832 }
1833
1834 static void connector_bad_edid(struct drm_connector *connector,
1835                                u8 *edid, int num_blocks)
1836 {
1837         int i;
1838         u8 num_of_ext = edid[0x7e];
1839
1840         /* Calculate real checksum for the last edid extension block data */
1841         connector->real_edid_checksum =
1842                 drm_edid_block_checksum(edid + num_of_ext * EDID_LENGTH);
1843
1844         if (connector->bad_edid_counter++ && !drm_debug_enabled(DRM_UT_KMS))
1845                 return;
1846
1847         drm_warn(connector->dev, "%s: EDID is invalid:\n", connector->name);
1848         for (i = 0; i < num_blocks; i++) {
1849                 u8 *block = edid + i * EDID_LENGTH;
1850                 char prefix[20];
1851
1852                 if (drm_edid_is_zero(block, EDID_LENGTH))
1853                         sprintf(prefix, "\t[%02x] ZERO ", i);
1854                 else if (!drm_edid_block_valid(block, i, false, NULL))
1855                         sprintf(prefix, "\t[%02x] BAD  ", i);
1856                 else
1857                         sprintf(prefix, "\t[%02x] GOOD ", i);
1858
1859                 print_hex_dump(KERN_WARNING,
1860                                prefix, DUMP_PREFIX_NONE, 16, 1,
1861                                block, EDID_LENGTH, false);
1862         }
1863 }
1864
1865 /* Get override or firmware EDID */
1866 static struct edid *drm_get_override_edid(struct drm_connector *connector)
1867 {
1868         struct edid *override = NULL;
1869
1870         if (connector->override_edid)
1871                 override = drm_edid_duplicate(connector->edid_blob_ptr->data);
1872
1873         if (!override)
1874                 override = drm_load_edid_firmware(connector);
1875
1876         return IS_ERR(override) ? NULL : override;
1877 }
1878
1879 /**
1880  * drm_add_override_edid_modes - add modes from override/firmware EDID
1881  * @connector: connector we're probing
1882  *
1883  * Add modes from the override/firmware EDID, if available. Only to be used from
1884  * drm_helper_probe_single_connector_modes() as a fallback for when DDC probe
1885  * failed during drm_get_edid() and caused the override/firmware EDID to be
1886  * skipped.
1887  *
1888  * Return: The number of modes added or 0 if we couldn't find any.
1889  */
1890 int drm_add_override_edid_modes(struct drm_connector *connector)
1891 {
1892         struct edid *override;
1893         int num_modes = 0;
1894
1895         override = drm_get_override_edid(connector);
1896         if (override) {
1897                 drm_connector_update_edid_property(connector, override);
1898                 num_modes = drm_add_edid_modes(connector, override);
1899                 kfree(override);
1900
1901                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s] adding %d modes via fallback override/firmware EDID\n",
1902                               connector->base.id, connector->name, num_modes);
1903         }
1904
1905         return num_modes;
1906 }
1907 EXPORT_SYMBOL(drm_add_override_edid_modes);
1908
1909 /**
1910  * drm_do_get_edid - get EDID data using a custom EDID block read function
1911  * @connector: connector we're probing
1912  * @get_edid_block: EDID block read function
1913  * @data: private data passed to the block read function
1914  *
1915  * When the I2C adapter connected to the DDC bus is hidden behind a device that
1916  * exposes a different interface to read EDID blocks this function can be used
1917  * to get EDID data using a custom block read function.
1918  *
1919  * As in the general case the DDC bus is accessible by the kernel at the I2C
1920  * level, drivers must make all reasonable efforts to expose it as an I2C
1921  * adapter and use drm_get_edid() instead of abusing this function.
1922  *
1923  * The EDID may be overridden using debugfs override_edid or firmare EDID
1924  * (drm_load_edid_firmware() and drm.edid_firmware parameter), in this priority
1925  * order. Having either of them bypasses actual EDID reads.
1926  *
1927  * Return: Pointer to valid EDID or NULL if we couldn't find any.
1928  */
1929 struct edid *drm_do_get_edid(struct drm_connector *connector,
1930         int (*get_edid_block)(void *data, u8 *buf, unsigned int block,
1931                               size_t len),
1932         void *data)
1933 {
1934         int i, j = 0, valid_extensions = 0;
1935         u8 *edid, *new;
1936         struct edid *override;
1937
1938         override = drm_get_override_edid(connector);
1939         if (override)
1940                 return override;
1941
1942         if ((edid = kmalloc(EDID_LENGTH, GFP_KERNEL)) == NULL)
1943                 return NULL;
1944
1945         /* base block fetch */
1946         for (i = 0; i < 4; i++) {
1947                 if (get_edid_block(data, edid, 0, EDID_LENGTH))
1948                         goto out;
1949                 if (drm_edid_block_valid(edid, 0, false,
1950                                          &connector->edid_corrupt))
1951                         break;
1952                 if (i == 0 && drm_edid_is_zero(edid, EDID_LENGTH)) {
1953                         connector->null_edid_counter++;
1954                         goto carp;
1955                 }
1956         }
1957         if (i == 4)
1958                 goto carp;
1959
1960         /* if there's no extensions, we're done */
1961         valid_extensions = edid[0x7e];
1962         if (valid_extensions == 0)
1963                 return (struct edid *)edid;
1964
1965         new = krealloc(edid, (valid_extensions + 1) * EDID_LENGTH, GFP_KERNEL);
1966         if (!new)
1967                 goto out;
1968         edid = new;
1969
1970         for (j = 1; j <= edid[0x7e]; j++) {
1971                 u8 *block = edid + j * EDID_LENGTH;
1972
1973                 for (i = 0; i < 4; i++) {
1974                         if (get_edid_block(data, block, j, EDID_LENGTH))
1975                                 goto out;
1976                         if (drm_edid_block_valid(block, j, false, NULL))
1977                                 break;
1978                 }
1979
1980                 if (i == 4)
1981                         valid_extensions--;
1982         }
1983
1984         if (valid_extensions != edid[0x7e]) {
1985                 u8 *base;
1986
1987                 connector_bad_edid(connector, edid, edid[0x7e] + 1);
1988
1989                 edid[EDID_LENGTH-1] += edid[0x7e] - valid_extensions;
1990                 edid[0x7e] = valid_extensions;
1991
1992                 new = kmalloc_array(valid_extensions + 1, EDID_LENGTH,
1993                                     GFP_KERNEL);
1994                 if (!new)
1995                         goto out;
1996
1997                 base = new;
1998                 for (i = 0; i <= edid[0x7e]; i++) {
1999                         u8 *block = edid + i * EDID_LENGTH;
2000
2001                         if (!drm_edid_block_valid(block, i, false, NULL))
2002                                 continue;
2003
2004                         memcpy(base, block, EDID_LENGTH);
2005                         base += EDID_LENGTH;
2006                 }
2007
2008                 kfree(edid);
2009                 edid = new;
2010         }
2011
2012         return (struct edid *)edid;
2013
2014 carp:
2015         connector_bad_edid(connector, edid, 1);
2016 out:
2017         kfree(edid);
2018         return NULL;
2019 }
2020 EXPORT_SYMBOL_GPL(drm_do_get_edid);
2021
2022 /**
2023  * drm_probe_ddc() - probe DDC presence
2024  * @adapter: I2C adapter to probe
2025  *
2026  * Return: True on success, false on failure.
2027  */
2028 bool
2029 drm_probe_ddc(struct i2c_adapter *adapter)
2030 {
2031         unsigned char out;
2032
2033         return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
2034 }
2035 EXPORT_SYMBOL(drm_probe_ddc);
2036
2037 /**
2038  * drm_get_edid - get EDID data, if available
2039  * @connector: connector we're probing
2040  * @adapter: I2C adapter to use for DDC
2041  *
2042  * Poke the given I2C channel to grab EDID data if possible.  If found,
2043  * attach it to the connector.
2044  *
2045  * Return: Pointer to valid EDID or NULL if we couldn't find any.
2046  */
2047 struct edid *drm_get_edid(struct drm_connector *connector,
2048                           struct i2c_adapter *adapter)
2049 {
2050         struct edid *edid;
2051
2052         if (connector->force == DRM_FORCE_OFF)
2053                 return NULL;
2054
2055         if (connector->force == DRM_FORCE_UNSPECIFIED && !drm_probe_ddc(adapter))
2056                 return NULL;
2057
2058         edid = drm_do_get_edid(connector, drm_do_probe_ddc_edid, adapter);
2059         drm_connector_update_edid_property(connector, edid);
2060         return edid;
2061 }
2062 EXPORT_SYMBOL(drm_get_edid);
2063
2064 /**
2065  * drm_get_edid_switcheroo - get EDID data for a vga_switcheroo output
2066  * @connector: connector we're probing
2067  * @adapter: I2C adapter to use for DDC
2068  *
2069  * Wrapper around drm_get_edid() for laptops with dual GPUs using one set of
2070  * outputs. The wrapper adds the requisite vga_switcheroo calls to temporarily
2071  * switch DDC to the GPU which is retrieving EDID.
2072  *
2073  * Return: Pointer to valid EDID or %NULL if we couldn't find any.
2074  */
2075 struct edid *drm_get_edid_switcheroo(struct drm_connector *connector,
2076                                      struct i2c_adapter *adapter)
2077 {
2078         struct pci_dev *pdev = connector->dev->pdev;
2079         struct edid *edid;
2080
2081         vga_switcheroo_lock_ddc(pdev);
2082         edid = drm_get_edid(connector, adapter);
2083         vga_switcheroo_unlock_ddc(pdev);
2084
2085         return edid;
2086 }
2087 EXPORT_SYMBOL(drm_get_edid_switcheroo);
2088
2089 /**
2090  * drm_edid_duplicate - duplicate an EDID and the extensions
2091  * @edid: EDID to duplicate
2092  *
2093  * Return: Pointer to duplicated EDID or NULL on allocation failure.
2094  */
2095 struct edid *drm_edid_duplicate(const struct edid *edid)
2096 {
2097         return kmemdup(edid, (edid->extensions + 1) * EDID_LENGTH, GFP_KERNEL);
2098 }
2099 EXPORT_SYMBOL(drm_edid_duplicate);
2100
2101 /*** EDID parsing ***/
2102
2103 /**
2104  * edid_vendor - match a string against EDID's obfuscated vendor field
2105  * @edid: EDID to match
2106  * @vendor: vendor string
2107  *
2108  * Returns true if @vendor is in @edid, false otherwise
2109  */
2110 static bool edid_vendor(const struct edid *edid, const char *vendor)
2111 {
2112         char edid_vendor[3];
2113
2114         edid_vendor[0] = ((edid->mfg_id[0] & 0x7c) >> 2) + '@';
2115         edid_vendor[1] = (((edid->mfg_id[0] & 0x3) << 3) |
2116                           ((edid->mfg_id[1] & 0xe0) >> 5)) + '@';
2117         edid_vendor[2] = (edid->mfg_id[1] & 0x1f) + '@';
2118
2119         return !strncmp(edid_vendor, vendor, 3);
2120 }
2121
2122 /**
2123  * edid_get_quirks - return quirk flags for a given EDID
2124  * @edid: EDID to process
2125  *
2126  * This tells subsequent routines what fixes they need to apply.
2127  */
2128 static u32 edid_get_quirks(const struct edid *edid)
2129 {
2130         const struct edid_quirk *quirk;
2131         int i;
2132
2133         for (i = 0; i < ARRAY_SIZE(edid_quirk_list); i++) {
2134                 quirk = &edid_quirk_list[i];
2135
2136                 if (edid_vendor(edid, quirk->vendor) &&
2137                     (EDID_PRODUCT_ID(edid) == quirk->product_id))
2138                         return quirk->quirks;
2139         }
2140
2141         return 0;
2142 }
2143
2144 #define MODE_SIZE(m) ((m)->hdisplay * (m)->vdisplay)
2145 #define MODE_REFRESH_DIFF(c,t) (abs((c) - (t)))
2146
2147 /**
2148  * edid_fixup_preferred - set preferred modes based on quirk list
2149  * @connector: has mode list to fix up
2150  * @quirks: quirks list
2151  *
2152  * Walk the mode list for @connector, clearing the preferred status
2153  * on existing modes and setting it anew for the right mode ala @quirks.
2154  */
2155 static void edid_fixup_preferred(struct drm_connector *connector,
2156                                  u32 quirks)
2157 {
2158         struct drm_display_mode *t, *cur_mode, *preferred_mode;
2159         int target_refresh = 0;
2160         int cur_vrefresh, preferred_vrefresh;
2161
2162         if (list_empty(&connector->probed_modes))
2163                 return;
2164
2165         if (quirks & EDID_QUIRK_PREFER_LARGE_60)
2166                 target_refresh = 60;
2167         if (quirks & EDID_QUIRK_PREFER_LARGE_75)
2168                 target_refresh = 75;
2169
2170         preferred_mode = list_first_entry(&connector->probed_modes,
2171                                           struct drm_display_mode, head);
2172
2173         list_for_each_entry_safe(cur_mode, t, &connector->probed_modes, head) {
2174                 cur_mode->type &= ~DRM_MODE_TYPE_PREFERRED;
2175
2176                 if (cur_mode == preferred_mode)
2177                         continue;
2178
2179                 /* Largest mode is preferred */
2180                 if (MODE_SIZE(cur_mode) > MODE_SIZE(preferred_mode))
2181                         preferred_mode = cur_mode;
2182
2183                 cur_vrefresh = drm_mode_vrefresh(cur_mode);
2184                 preferred_vrefresh = drm_mode_vrefresh(preferred_mode);
2185                 /* At a given size, try to get closest to target refresh */
2186                 if ((MODE_SIZE(cur_mode) == MODE_SIZE(preferred_mode)) &&
2187                     MODE_REFRESH_DIFF(cur_vrefresh, target_refresh) <
2188                     MODE_REFRESH_DIFF(preferred_vrefresh, target_refresh)) {
2189                         preferred_mode = cur_mode;
2190                 }
2191         }
2192
2193         preferred_mode->type |= DRM_MODE_TYPE_PREFERRED;
2194 }
2195
2196 static bool
2197 mode_is_rb(const struct drm_display_mode *mode)
2198 {
2199         return (mode->htotal - mode->hdisplay == 160) &&
2200                (mode->hsync_end - mode->hdisplay == 80) &&
2201                (mode->hsync_end - mode->hsync_start == 32) &&
2202                (mode->vsync_start - mode->vdisplay == 3);
2203 }
2204
2205 /*
2206  * drm_mode_find_dmt - Create a copy of a mode if present in DMT
2207  * @dev: Device to duplicate against
2208  * @hsize: Mode width
2209  * @vsize: Mode height
2210  * @fresh: Mode refresh rate
2211  * @rb: Mode reduced-blanking-ness
2212  *
2213  * Walk the DMT mode list looking for a match for the given parameters.
2214  *
2215  * Return: A newly allocated copy of the mode, or NULL if not found.
2216  */
2217 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
2218                                            int hsize, int vsize, int fresh,
2219                                            bool rb)
2220 {
2221         int i;
2222
2223         for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2224                 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
2225
2226                 if (hsize != ptr->hdisplay)
2227                         continue;
2228                 if (vsize != ptr->vdisplay)
2229                         continue;
2230                 if (fresh != drm_mode_vrefresh(ptr))
2231                         continue;
2232                 if (rb != mode_is_rb(ptr))
2233                         continue;
2234
2235                 return drm_mode_duplicate(dev, ptr);
2236         }
2237
2238         return NULL;
2239 }
2240 EXPORT_SYMBOL(drm_mode_find_dmt);
2241
2242 static bool is_display_descriptor(const u8 d[18], u8 tag)
2243 {
2244         return d[0] == 0x00 && d[1] == 0x00 &&
2245                 d[2] == 0x00 && d[3] == tag;
2246 }
2247
2248 static bool is_detailed_timing_descriptor(const u8 d[18])
2249 {
2250         return d[0] != 0x00 || d[1] != 0x00;
2251 }
2252
2253 typedef void detailed_cb(struct detailed_timing *timing, void *closure);
2254
2255 static void
2256 cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
2257 {
2258         int i, n;
2259         u8 d = ext[0x02];
2260         u8 *det_base = ext + d;
2261
2262         if (d < 4 || d > 127)
2263                 return;
2264
2265         n = (127 - d) / 18;
2266         for (i = 0; i < n; i++)
2267                 cb((struct detailed_timing *)(det_base + 18 * i), closure);
2268 }
2269
2270 static void
2271 vtb_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
2272 {
2273         unsigned int i, n = min((int)ext[0x02], 6);
2274         u8 *det_base = ext + 5;
2275
2276         if (ext[0x01] != 1)
2277                 return; /* unknown version */
2278
2279         for (i = 0; i < n; i++)
2280                 cb((struct detailed_timing *)(det_base + 18 * i), closure);
2281 }
2282
2283 static void
2284 drm_for_each_detailed_block(u8 *raw_edid, detailed_cb *cb, void *closure)
2285 {
2286         int i;
2287         struct edid *edid = (struct edid *)raw_edid;
2288
2289         if (edid == NULL)
2290                 return;
2291
2292         for (i = 0; i < EDID_DETAILED_TIMINGS; i++)
2293                 cb(&(edid->detailed_timings[i]), closure);
2294
2295         for (i = 1; i <= raw_edid[0x7e]; i++) {
2296                 u8 *ext = raw_edid + (i * EDID_LENGTH);
2297
2298                 switch (*ext) {
2299                 case CEA_EXT:
2300                         cea_for_each_detailed_block(ext, cb, closure);
2301                         break;
2302                 case VTB_EXT:
2303                         vtb_for_each_detailed_block(ext, cb, closure);
2304                         break;
2305                 default:
2306                         break;
2307                 }
2308         }
2309 }
2310
2311 static void
2312 is_rb(struct detailed_timing *t, void *data)
2313 {
2314         u8 *r = (u8 *)t;
2315
2316         if (!is_display_descriptor(r, EDID_DETAIL_MONITOR_RANGE))
2317                 return;
2318
2319         if (r[15] & 0x10)
2320                 *(bool *)data = true;
2321 }
2322
2323 /* EDID 1.4 defines this explicitly.  For EDID 1.3, we guess, badly. */
2324 static bool
2325 drm_monitor_supports_rb(struct edid *edid)
2326 {
2327         if (edid->revision >= 4) {
2328                 bool ret = false;
2329
2330                 drm_for_each_detailed_block((u8 *)edid, is_rb, &ret);
2331                 return ret;
2332         }
2333
2334         return ((edid->input & DRM_EDID_INPUT_DIGITAL) != 0);
2335 }
2336
2337 static void
2338 find_gtf2(struct detailed_timing *t, void *data)
2339 {
2340         u8 *r = (u8 *)t;
2341
2342         if (!is_display_descriptor(r, EDID_DETAIL_MONITOR_RANGE))
2343                 return;
2344
2345         if (r[10] == 0x02)
2346                 *(u8 **)data = r;
2347 }
2348
2349 /* Secondary GTF curve kicks in above some break frequency */
2350 static int
2351 drm_gtf2_hbreak(struct edid *edid)
2352 {
2353         u8 *r = NULL;
2354
2355         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2356         return r ? (r[12] * 2) : 0;
2357 }
2358
2359 static int
2360 drm_gtf2_2c(struct edid *edid)
2361 {
2362         u8 *r = NULL;
2363
2364         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2365         return r ? r[13] : 0;
2366 }
2367
2368 static int
2369 drm_gtf2_m(struct edid *edid)
2370 {
2371         u8 *r = NULL;
2372
2373         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2374         return r ? (r[15] << 8) + r[14] : 0;
2375 }
2376
2377 static int
2378 drm_gtf2_k(struct edid *edid)
2379 {
2380         u8 *r = NULL;
2381
2382         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2383         return r ? r[16] : 0;
2384 }
2385
2386 static int
2387 drm_gtf2_2j(struct edid *edid)
2388 {
2389         u8 *r = NULL;
2390
2391         drm_for_each_detailed_block((u8 *)edid, find_gtf2, &r);
2392         return r ? r[17] : 0;
2393 }
2394
2395 /**
2396  * standard_timing_level - get std. timing level(CVT/GTF/DMT)
2397  * @edid: EDID block to scan
2398  */
2399 static int standard_timing_level(struct edid *edid)
2400 {
2401         if (edid->revision >= 2) {
2402                 if (edid->revision >= 4 && (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF))
2403                         return LEVEL_CVT;
2404                 if (drm_gtf2_hbreak(edid))
2405                         return LEVEL_GTF2;
2406                 if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
2407                         return LEVEL_GTF;
2408         }
2409         return LEVEL_DMT;
2410 }
2411
2412 /*
2413  * 0 is reserved.  The spec says 0x01 fill for unused timings.  Some old
2414  * monitors fill with ascii space (0x20) instead.
2415  */
2416 static int
2417 bad_std_timing(u8 a, u8 b)
2418 {
2419         return (a == 0x00 && b == 0x00) ||
2420                (a == 0x01 && b == 0x01) ||
2421                (a == 0x20 && b == 0x20);
2422 }
2423
2424 static int drm_mode_hsync(const struct drm_display_mode *mode)
2425 {
2426         if (mode->htotal <= 0)
2427                 return 0;
2428
2429         return DIV_ROUND_CLOSEST(mode->clock, mode->htotal);
2430 }
2431
2432 /**
2433  * drm_mode_std - convert standard mode info (width, height, refresh) into mode
2434  * @connector: connector of for the EDID block
2435  * @edid: EDID block to scan
2436  * @t: standard timing params
2437  *
2438  * Take the standard timing params (in this case width, aspect, and refresh)
2439  * and convert them into a real mode using CVT/GTF/DMT.
2440  */
2441 static struct drm_display_mode *
2442 drm_mode_std(struct drm_connector *connector, struct edid *edid,
2443              struct std_timing *t)
2444 {
2445         struct drm_device *dev = connector->dev;
2446         struct drm_display_mode *m, *mode = NULL;
2447         int hsize, vsize;
2448         int vrefresh_rate;
2449         unsigned aspect_ratio = (t->vfreq_aspect & EDID_TIMING_ASPECT_MASK)
2450                 >> EDID_TIMING_ASPECT_SHIFT;
2451         unsigned vfreq = (t->vfreq_aspect & EDID_TIMING_VFREQ_MASK)
2452                 >> EDID_TIMING_VFREQ_SHIFT;
2453         int timing_level = standard_timing_level(edid);
2454
2455         if (bad_std_timing(t->hsize, t->vfreq_aspect))
2456                 return NULL;
2457
2458         /* According to the EDID spec, the hdisplay = hsize * 8 + 248 */
2459         hsize = t->hsize * 8 + 248;
2460         /* vrefresh_rate = vfreq + 60 */
2461         vrefresh_rate = vfreq + 60;
2462         /* the vdisplay is calculated based on the aspect ratio */
2463         if (aspect_ratio == 0) {
2464                 if (edid->revision < 3)
2465                         vsize = hsize;
2466                 else
2467                         vsize = (hsize * 10) / 16;
2468         } else if (aspect_ratio == 1)
2469                 vsize = (hsize * 3) / 4;
2470         else if (aspect_ratio == 2)
2471                 vsize = (hsize * 4) / 5;
2472         else
2473                 vsize = (hsize * 9) / 16;
2474
2475         /* HDTV hack, part 1 */
2476         if (vrefresh_rate == 60 &&
2477             ((hsize == 1360 && vsize == 765) ||
2478              (hsize == 1368 && vsize == 769))) {
2479                 hsize = 1366;
2480                 vsize = 768;
2481         }
2482
2483         /*
2484          * If this connector already has a mode for this size and refresh
2485          * rate (because it came from detailed or CVT info), use that
2486          * instead.  This way we don't have to guess at interlace or
2487          * reduced blanking.
2488          */
2489         list_for_each_entry(m, &connector->probed_modes, head)
2490                 if (m->hdisplay == hsize && m->vdisplay == vsize &&
2491                     drm_mode_vrefresh(m) == vrefresh_rate)
2492                         return NULL;
2493
2494         /* HDTV hack, part 2 */
2495         if (hsize == 1366 && vsize == 768 && vrefresh_rate == 60) {
2496                 mode = drm_cvt_mode(dev, 1366, 768, vrefresh_rate, 0, 0,
2497                                     false);
2498                 if (!mode)
2499                         return NULL;
2500                 mode->hdisplay = 1366;
2501                 mode->hsync_start = mode->hsync_start - 1;
2502                 mode->hsync_end = mode->hsync_end - 1;
2503                 return mode;
2504         }
2505
2506         /* check whether it can be found in default mode table */
2507         if (drm_monitor_supports_rb(edid)) {
2508                 mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate,
2509                                          true);
2510                 if (mode)
2511                         return mode;
2512         }
2513         mode = drm_mode_find_dmt(dev, hsize, vsize, vrefresh_rate, false);
2514         if (mode)
2515                 return mode;
2516
2517         /* okay, generate it */
2518         switch (timing_level) {
2519         case LEVEL_DMT:
2520                 break;
2521         case LEVEL_GTF:
2522                 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2523                 break;
2524         case LEVEL_GTF2:
2525                 /*
2526                  * This is potentially wrong if there's ever a monitor with
2527                  * more than one ranges section, each claiming a different
2528                  * secondary GTF curve.  Please don't do that.
2529                  */
2530                 mode = drm_gtf_mode(dev, hsize, vsize, vrefresh_rate, 0, 0);
2531                 if (!mode)
2532                         return NULL;
2533                 if (drm_mode_hsync(mode) > drm_gtf2_hbreak(edid)) {
2534                         drm_mode_destroy(dev, mode);
2535                         mode = drm_gtf_mode_complex(dev, hsize, vsize,
2536                                                     vrefresh_rate, 0, 0,
2537                                                     drm_gtf2_m(edid),
2538                                                     drm_gtf2_2c(edid),
2539                                                     drm_gtf2_k(edid),
2540                                                     drm_gtf2_2j(edid));
2541                 }
2542                 break;
2543         case LEVEL_CVT:
2544                 mode = drm_cvt_mode(dev, hsize, vsize, vrefresh_rate, 0, 0,
2545                                     false);
2546                 break;
2547         }
2548         return mode;
2549 }
2550
2551 /*
2552  * EDID is delightfully ambiguous about how interlaced modes are to be
2553  * encoded.  Our internal representation is of frame height, but some
2554  * HDTV detailed timings are encoded as field height.
2555  *
2556  * The format list here is from CEA, in frame size.  Technically we
2557  * should be checking refresh rate too.  Whatever.
2558  */
2559 static void
2560 drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
2561                             struct detailed_pixel_timing *pt)
2562 {
2563         int i;
2564         static const struct {
2565                 int w, h;
2566         } cea_interlaced[] = {
2567                 { 1920, 1080 },
2568                 {  720,  480 },
2569                 { 1440,  480 },
2570                 { 2880,  480 },
2571                 {  720,  576 },
2572                 { 1440,  576 },
2573                 { 2880,  576 },
2574         };
2575
2576         if (!(pt->misc & DRM_EDID_PT_INTERLACED))
2577                 return;
2578
2579         for (i = 0; i < ARRAY_SIZE(cea_interlaced); i++) {
2580                 if ((mode->hdisplay == cea_interlaced[i].w) &&
2581                     (mode->vdisplay == cea_interlaced[i].h / 2)) {
2582                         mode->vdisplay *= 2;
2583                         mode->vsync_start *= 2;
2584                         mode->vsync_end *= 2;
2585                         mode->vtotal *= 2;
2586                         mode->vtotal |= 1;
2587                 }
2588         }
2589
2590         mode->flags |= DRM_MODE_FLAG_INTERLACE;
2591 }
2592
2593 /**
2594  * drm_mode_detailed - create a new mode from an EDID detailed timing section
2595  * @dev: DRM device (needed to create new mode)
2596  * @edid: EDID block
2597  * @timing: EDID detailed timing info
2598  * @quirks: quirks to apply
2599  *
2600  * An EDID detailed timing block contains enough info for us to create and
2601  * return a new struct drm_display_mode.
2602  */
2603 static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
2604                                                   struct edid *edid,
2605                                                   struct detailed_timing *timing,
2606                                                   u32 quirks)
2607 {
2608         struct drm_display_mode *mode;
2609         struct detailed_pixel_timing *pt = &timing->data.pixel_data;
2610         unsigned hactive = (pt->hactive_hblank_hi & 0xf0) << 4 | pt->hactive_lo;
2611         unsigned vactive = (pt->vactive_vblank_hi & 0xf0) << 4 | pt->vactive_lo;
2612         unsigned hblank = (pt->hactive_hblank_hi & 0xf) << 8 | pt->hblank_lo;
2613         unsigned vblank = (pt->vactive_vblank_hi & 0xf) << 8 | pt->vblank_lo;
2614         unsigned hsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc0) << 2 | pt->hsync_offset_lo;
2615         unsigned hsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x30) << 4 | pt->hsync_pulse_width_lo;
2616         unsigned vsync_offset = (pt->hsync_vsync_offset_pulse_width_hi & 0xc) << 2 | pt->vsync_offset_pulse_width_lo >> 4;
2617         unsigned vsync_pulse_width = (pt->hsync_vsync_offset_pulse_width_hi & 0x3) << 4 | (pt->vsync_offset_pulse_width_lo & 0xf);
2618
2619         /* ignore tiny modes */
2620         if (hactive < 64 || vactive < 64)
2621                 return NULL;
2622
2623         if (pt->misc & DRM_EDID_PT_STEREO) {
2624                 DRM_DEBUG_KMS("stereo mode not supported\n");
2625                 return NULL;
2626         }
2627         if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
2628                 DRM_DEBUG_KMS("composite sync not supported\n");
2629         }
2630
2631         /* it is incorrect if hsync/vsync width is zero */
2632         if (!hsync_pulse_width || !vsync_pulse_width) {
2633                 DRM_DEBUG_KMS("Incorrect Detailed timing. "
2634                                 "Wrong Hsync/Vsync pulse width\n");
2635                 return NULL;
2636         }
2637
2638         if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) {
2639                 mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false);
2640                 if (!mode)
2641                         return NULL;
2642
2643                 goto set_size;
2644         }
2645
2646         mode = drm_mode_create(dev);
2647         if (!mode)
2648                 return NULL;
2649
2650         if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH)
2651                 timing->pixel_clock = cpu_to_le16(1088);
2652
2653         mode->clock = le16_to_cpu(timing->pixel_clock) * 10;
2654
2655         mode->hdisplay = hactive;
2656         mode->hsync_start = mode->hdisplay + hsync_offset;
2657         mode->hsync_end = mode->hsync_start + hsync_pulse_width;
2658         mode->htotal = mode->hdisplay + hblank;
2659
2660         mode->vdisplay = vactive;
2661         mode->vsync_start = mode->vdisplay + vsync_offset;
2662         mode->vsync_end = mode->vsync_start + vsync_pulse_width;
2663         mode->vtotal = mode->vdisplay + vblank;
2664
2665         /* Some EDIDs have bogus h/vtotal values */
2666         if (mode->hsync_end > mode->htotal)
2667                 mode->htotal = mode->hsync_end + 1;
2668         if (mode->vsync_end > mode->vtotal)
2669                 mode->vtotal = mode->vsync_end + 1;
2670
2671         drm_mode_do_interlace_quirk(mode, pt);
2672
2673         if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
2674                 pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
2675         }
2676
2677         mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
2678                 DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
2679         mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
2680                 DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
2681
2682 set_size:
2683         mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4;
2684         mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8;
2685
2686         if (quirks & EDID_QUIRK_DETAILED_IN_CM) {
2687                 mode->width_mm *= 10;
2688                 mode->height_mm *= 10;
2689         }
2690
2691         if (quirks & EDID_QUIRK_DETAILED_USE_MAXIMUM_SIZE) {
2692                 mode->width_mm = edid->width_cm * 10;
2693                 mode->height_mm = edid->height_cm * 10;
2694         }
2695
2696         mode->type = DRM_MODE_TYPE_DRIVER;
2697         drm_mode_set_name(mode);
2698
2699         return mode;
2700 }
2701
2702 static bool
2703 mode_in_hsync_range(const struct drm_display_mode *mode,
2704                     struct edid *edid, u8 *t)
2705 {
2706         int hsync, hmin, hmax;
2707
2708         hmin = t[7];
2709         if (edid->revision >= 4)
2710             hmin += ((t[4] & 0x04) ? 255 : 0);
2711         hmax = t[8];
2712         if (edid->revision >= 4)
2713             hmax += ((t[4] & 0x08) ? 255 : 0);
2714         hsync = drm_mode_hsync(mode);
2715
2716         return (hsync <= hmax && hsync >= hmin);
2717 }
2718
2719 static bool
2720 mode_in_vsync_range(const struct drm_display_mode *mode,
2721                     struct edid *edid, u8 *t)
2722 {
2723         int vsync, vmin, vmax;
2724
2725         vmin = t[5];
2726         if (edid->revision >= 4)
2727             vmin += ((t[4] & 0x01) ? 255 : 0);
2728         vmax = t[6];
2729         if (edid->revision >= 4)
2730             vmax += ((t[4] & 0x02) ? 255 : 0);
2731         vsync = drm_mode_vrefresh(mode);
2732
2733         return (vsync <= vmax && vsync >= vmin);
2734 }
2735
2736 static u32
2737 range_pixel_clock(struct edid *edid, u8 *t)
2738 {
2739         /* unspecified */
2740         if (t[9] == 0 || t[9] == 255)
2741                 return 0;
2742
2743         /* 1.4 with CVT support gives us real precision, yay */
2744         if (edid->revision >= 4 && t[10] == 0x04)
2745                 return (t[9] * 10000) - ((t[12] >> 2) * 250);
2746
2747         /* 1.3 is pathetic, so fuzz up a bit */
2748         return t[9] * 10000 + 5001;
2749 }
2750
2751 static bool
2752 mode_in_range(const struct drm_display_mode *mode, struct edid *edid,
2753               struct detailed_timing *timing)
2754 {
2755         u32 max_clock;
2756         u8 *t = (u8 *)timing;
2757
2758         if (!mode_in_hsync_range(mode, edid, t))
2759                 return false;
2760
2761         if (!mode_in_vsync_range(mode, edid, t))
2762                 return false;
2763
2764         if ((max_clock = range_pixel_clock(edid, t)))
2765                 if (mode->clock > max_clock)
2766                         return false;
2767
2768         /* 1.4 max horizontal check */
2769         if (edid->revision >= 4 && t[10] == 0x04)
2770                 if (t[13] && mode->hdisplay > 8 * (t[13] + (256 * (t[12]&0x3))))
2771                         return false;
2772
2773         if (mode_is_rb(mode) && !drm_monitor_supports_rb(edid))
2774                 return false;
2775
2776         return true;
2777 }
2778
2779 static bool valid_inferred_mode(const struct drm_connector *connector,
2780                                 const struct drm_display_mode *mode)
2781 {
2782         const struct drm_display_mode *m;
2783         bool ok = false;
2784
2785         list_for_each_entry(m, &connector->probed_modes, head) {
2786                 if (mode->hdisplay == m->hdisplay &&
2787                     mode->vdisplay == m->vdisplay &&
2788                     drm_mode_vrefresh(mode) == drm_mode_vrefresh(m))
2789                         return false; /* duplicated */
2790                 if (mode->hdisplay <= m->hdisplay &&
2791                     mode->vdisplay <= m->vdisplay)
2792                         ok = true;
2793         }
2794         return ok;
2795 }
2796
2797 static int
2798 drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2799                         struct detailed_timing *timing)
2800 {
2801         int i, modes = 0;
2802         struct drm_display_mode *newmode;
2803         struct drm_device *dev = connector->dev;
2804
2805         for (i = 0; i < ARRAY_SIZE(drm_dmt_modes); i++) {
2806                 if (mode_in_range(drm_dmt_modes + i, edid, timing) &&
2807                     valid_inferred_mode(connector, drm_dmt_modes + i)) {
2808                         newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]);
2809                         if (newmode) {
2810                                 drm_mode_probed_add(connector, newmode);
2811                                 modes++;
2812                         }
2813                 }
2814         }
2815
2816         return modes;
2817 }
2818
2819 /* fix up 1366x768 mode from 1368x768;
2820  * GFT/CVT can't express 1366 width which isn't dividable by 8
2821  */
2822 void drm_mode_fixup_1366x768(struct drm_display_mode *mode)
2823 {
2824         if (mode->hdisplay == 1368 && mode->vdisplay == 768) {
2825                 mode->hdisplay = 1366;
2826                 mode->hsync_start--;
2827                 mode->hsync_end--;
2828                 drm_mode_set_name(mode);
2829         }
2830 }
2831
2832 static int
2833 drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid,
2834                         struct detailed_timing *timing)
2835 {
2836         int i, modes = 0;
2837         struct drm_display_mode *newmode;
2838         struct drm_device *dev = connector->dev;
2839
2840         for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2841                 const struct minimode *m = &extra_modes[i];
2842
2843                 newmode = drm_gtf_mode(dev, m->w, m->h, m->r, 0, 0);
2844                 if (!newmode)
2845                         return modes;
2846
2847                 drm_mode_fixup_1366x768(newmode);
2848                 if (!mode_in_range(newmode, edid, timing) ||
2849                     !valid_inferred_mode(connector, newmode)) {
2850                         drm_mode_destroy(dev, newmode);
2851                         continue;
2852                 }
2853
2854                 drm_mode_probed_add(connector, newmode);
2855                 modes++;
2856         }
2857
2858         return modes;
2859 }
2860
2861 static int
2862 drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid,
2863                         struct detailed_timing *timing)
2864 {
2865         int i, modes = 0;
2866         struct drm_display_mode *newmode;
2867         struct drm_device *dev = connector->dev;
2868         bool rb = drm_monitor_supports_rb(edid);
2869
2870         for (i = 0; i < ARRAY_SIZE(extra_modes); i++) {
2871                 const struct minimode *m = &extra_modes[i];
2872
2873                 newmode = drm_cvt_mode(dev, m->w, m->h, m->r, rb, 0, 0);
2874                 if (!newmode)
2875                         return modes;
2876
2877                 drm_mode_fixup_1366x768(newmode);
2878                 if (!mode_in_range(newmode, edid, timing) ||
2879                     !valid_inferred_mode(connector, newmode)) {
2880                         drm_mode_destroy(dev, newmode);
2881                         continue;
2882                 }
2883
2884                 drm_mode_probed_add(connector, newmode);
2885                 modes++;
2886         }
2887
2888         return modes;
2889 }
2890
2891 static void
2892 do_inferred_modes(struct detailed_timing *timing, void *c)
2893 {
2894         struct detailed_mode_closure *closure = c;
2895         struct detailed_non_pixel *data = &timing->data.other_data;
2896         struct detailed_data_monitor_range *range = &data->data.range;
2897
2898         if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_MONITOR_RANGE))
2899                 return;
2900
2901         closure->modes += drm_dmt_modes_for_range(closure->connector,
2902                                                   closure->edid,
2903                                                   timing);
2904
2905         if (!version_greater(closure->edid, 1, 1))
2906                 return; /* GTF not defined yet */
2907
2908         switch (range->flags) {
2909         case 0x02: /* secondary gtf, XXX could do more */
2910         case 0x00: /* default gtf */
2911                 closure->modes += drm_gtf_modes_for_range(closure->connector,
2912                                                           closure->edid,
2913                                                           timing);
2914                 break;
2915         case 0x04: /* cvt, only in 1.4+ */
2916                 if (!version_greater(closure->edid, 1, 3))
2917                         break;
2918
2919                 closure->modes += drm_cvt_modes_for_range(closure->connector,
2920                                                           closure->edid,
2921                                                           timing);
2922                 break;
2923         case 0x01: /* just the ranges, no formula */
2924         default:
2925                 break;
2926         }
2927 }
2928
2929 static int
2930 add_inferred_modes(struct drm_connector *connector, struct edid *edid)
2931 {
2932         struct detailed_mode_closure closure = {
2933                 .connector = connector,
2934                 .edid = edid,
2935         };
2936
2937         if (version_greater(edid, 1, 0))
2938                 drm_for_each_detailed_block((u8 *)edid, do_inferred_modes,
2939                                             &closure);
2940
2941         return closure.modes;
2942 }
2943
2944 static int
2945 drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
2946 {
2947         int i, j, m, modes = 0;
2948         struct drm_display_mode *mode;
2949         u8 *est = ((u8 *)timing) + 6;
2950
2951         for (i = 0; i < 6; i++) {
2952                 for (j = 7; j >= 0; j--) {
2953                         m = (i * 8) + (7 - j);
2954                         if (m >= ARRAY_SIZE(est3_modes))
2955                                 break;
2956                         if (est[i] & (1 << j)) {
2957                                 mode = drm_mode_find_dmt(connector->dev,
2958                                                          est3_modes[m].w,
2959                                                          est3_modes[m].h,
2960                                                          est3_modes[m].r,
2961                                                          est3_modes[m].rb);
2962                                 if (mode) {
2963                                         drm_mode_probed_add(connector, mode);
2964                                         modes++;
2965                                 }
2966                         }
2967                 }
2968         }
2969
2970         return modes;
2971 }
2972
2973 static void
2974 do_established_modes(struct detailed_timing *timing, void *c)
2975 {
2976         struct detailed_mode_closure *closure = c;
2977
2978         if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_EST_TIMINGS))
2979                 return;
2980
2981         closure->modes += drm_est3_modes(closure->connector, timing);
2982 }
2983
2984 /**
2985  * add_established_modes - get est. modes from EDID and add them
2986  * @connector: connector to add mode(s) to
2987  * @edid: EDID block to scan
2988  *
2989  * Each EDID block contains a bitmap of the supported "established modes" list
2990  * (defined above).  Tease them out and add them to the global modes list.
2991  */
2992 static int
2993 add_established_modes(struct drm_connector *connector, struct edid *edid)
2994 {
2995         struct drm_device *dev = connector->dev;
2996         unsigned long est_bits = edid->established_timings.t1 |
2997                 (edid->established_timings.t2 << 8) |
2998                 ((edid->established_timings.mfg_rsvd & 0x80) << 9);
2999         int i, modes = 0;
3000         struct detailed_mode_closure closure = {
3001                 .connector = connector,
3002                 .edid = edid,
3003         };
3004
3005         for (i = 0; i <= EDID_EST_TIMINGS; i++) {
3006                 if (est_bits & (1<<i)) {
3007                         struct drm_display_mode *newmode;
3008
3009                         newmode = drm_mode_duplicate(dev, &edid_est_modes[i]);
3010                         if (newmode) {
3011                                 drm_mode_probed_add(connector, newmode);
3012                                 modes++;
3013                         }
3014                 }
3015         }
3016
3017         if (version_greater(edid, 1, 0))
3018                     drm_for_each_detailed_block((u8 *)edid,
3019                                                 do_established_modes, &closure);
3020
3021         return modes + closure.modes;
3022 }
3023
3024 static void
3025 do_standard_modes(struct detailed_timing *timing, void *c)
3026 {
3027         struct detailed_mode_closure *closure = c;
3028         struct detailed_non_pixel *data = &timing->data.other_data;
3029         struct drm_connector *connector = closure->connector;
3030         struct edid *edid = closure->edid;
3031         int i;
3032
3033         if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_STD_MODES))
3034                 return;
3035
3036         for (i = 0; i < 6; i++) {
3037                 struct std_timing *std = &data->data.timings[i];
3038                 struct drm_display_mode *newmode;
3039
3040                 newmode = drm_mode_std(connector, edid, std);
3041                 if (newmode) {
3042                         drm_mode_probed_add(connector, newmode);
3043                         closure->modes++;
3044                 }
3045         }
3046 }
3047
3048 /**
3049  * add_standard_modes - get std. modes from EDID and add them
3050  * @connector: connector to add mode(s) to
3051  * @edid: EDID block to scan
3052  *
3053  * Standard modes can be calculated using the appropriate standard (DMT,
3054  * GTF or CVT. Grab them from @edid and add them to the list.
3055  */
3056 static int
3057 add_standard_modes(struct drm_connector *connector, struct edid *edid)
3058 {
3059         int i, modes = 0;
3060         struct detailed_mode_closure closure = {
3061                 .connector = connector,
3062                 .edid = edid,
3063         };
3064
3065         for (i = 0; i < EDID_STD_TIMINGS; i++) {
3066                 struct drm_display_mode *newmode;
3067
3068                 newmode = drm_mode_std(connector, edid,
3069                                        &edid->standard_timings[i]);
3070                 if (newmode) {
3071                         drm_mode_probed_add(connector, newmode);
3072                         modes++;
3073                 }
3074         }
3075
3076         if (version_greater(edid, 1, 0))
3077                 drm_for_each_detailed_block((u8 *)edid, do_standard_modes,
3078                                             &closure);
3079
3080         /* XXX should also look for standard codes in VTB blocks */
3081
3082         return modes + closure.modes;
3083 }
3084
3085 static int drm_cvt_modes(struct drm_connector *connector,
3086                          struct detailed_timing *timing)
3087 {
3088         int i, j, modes = 0;
3089         struct drm_display_mode *newmode;
3090         struct drm_device *dev = connector->dev;
3091         struct cvt_timing *cvt;
3092         const int rates[] = { 60, 85, 75, 60, 50 };
3093         const u8 empty[3] = { 0, 0, 0 };
3094
3095         for (i = 0; i < 4; i++) {
3096                 int uninitialized_var(width), height;
3097
3098                 cvt = &(timing->data.other_data.data.cvt[i]);
3099
3100                 if (!memcmp(cvt->code, empty, 3))
3101                         continue;
3102
3103                 height = (cvt->code[0] + ((cvt->code[1] & 0xf0) << 4) + 1) * 2;
3104                 switch (cvt->code[1] & 0x0c) {
3105                 case 0x00:
3106                         width = height * 4 / 3;
3107                         break;
3108                 case 0x04:
3109                         width = height * 16 / 9;
3110                         break;
3111                 case 0x08:
3112                         width = height * 16 / 10;
3113                         break;
3114                 case 0x0c:
3115                         width = height * 15 / 9;
3116                         break;
3117                 }
3118
3119                 for (j = 1; j < 5; j++) {
3120                         if (cvt->code[2] & (1 << j)) {
3121                                 newmode = drm_cvt_mode(dev, width, height,
3122                                                        rates[j], j == 0,
3123                                                        false, false);
3124                                 if (newmode) {
3125                                         drm_mode_probed_add(connector, newmode);
3126                                         modes++;
3127                                 }
3128                         }
3129                 }
3130         }
3131
3132         return modes;
3133 }
3134
3135 static void
3136 do_cvt_mode(struct detailed_timing *timing, void *c)
3137 {
3138         struct detailed_mode_closure *closure = c;
3139
3140         if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_CVT_3BYTE))
3141                 return;
3142
3143         closure->modes += drm_cvt_modes(closure->connector, timing);
3144 }
3145
3146 static int
3147 add_cvt_modes(struct drm_connector *connector, struct edid *edid)
3148 {
3149         struct detailed_mode_closure closure = {
3150                 .connector = connector,
3151                 .edid = edid,
3152         };
3153
3154         if (version_greater(edid, 1, 2))
3155                 drm_for_each_detailed_block((u8 *)edid, do_cvt_mode, &closure);
3156
3157         /* XXX should also look for CVT codes in VTB blocks */
3158
3159         return closure.modes;
3160 }
3161
3162 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode);
3163
3164 static void
3165 do_detailed_mode(struct detailed_timing *timing, void *c)
3166 {
3167         struct detailed_mode_closure *closure = c;
3168         struct drm_display_mode *newmode;
3169
3170         if (!is_detailed_timing_descriptor((const u8 *)timing))
3171                 return;
3172
3173         newmode = drm_mode_detailed(closure->connector->dev,
3174                                     closure->edid, timing,
3175                                     closure->quirks);
3176         if (!newmode)
3177                 return;
3178
3179         if (closure->preferred)
3180                 newmode->type |= DRM_MODE_TYPE_PREFERRED;
3181
3182         /*
3183          * Detailed modes are limited to 10kHz pixel clock resolution,
3184          * so fix up anything that looks like CEA/HDMI mode, but the clock
3185          * is just slightly off.
3186          */
3187         fixup_detailed_cea_mode_clock(newmode);
3188
3189         drm_mode_probed_add(closure->connector, newmode);
3190         closure->modes++;
3191         closure->preferred = false;
3192 }
3193
3194 /*
3195  * add_detailed_modes - Add modes from detailed timings
3196  * @connector: attached connector
3197  * @edid: EDID block to scan
3198  * @quirks: quirks to apply
3199  */
3200 static int
3201 add_detailed_modes(struct drm_connector *connector, struct edid *edid,
3202                    u32 quirks)
3203 {
3204         struct detailed_mode_closure closure = {
3205                 .connector = connector,
3206                 .edid = edid,
3207                 .preferred = true,
3208                 .quirks = quirks,
3209         };
3210
3211         if (closure.preferred && !version_greater(edid, 1, 3))
3212                 closure.preferred =
3213                     (edid->features & DRM_EDID_FEATURE_PREFERRED_TIMING);
3214
3215         drm_for_each_detailed_block((u8 *)edid, do_detailed_mode, &closure);
3216
3217         return closure.modes;
3218 }
3219
3220 #define AUDIO_BLOCK     0x01
3221 #define VIDEO_BLOCK     0x02
3222 #define VENDOR_BLOCK    0x03
3223 #define SPEAKER_BLOCK   0x04
3224 #define HDR_STATIC_METADATA_BLOCK       0x6
3225 #define USE_EXTENDED_TAG 0x07
3226 #define EXT_VIDEO_CAPABILITY_BLOCK 0x00
3227 #define EXT_VIDEO_DATA_BLOCK_420        0x0E
3228 #define EXT_VIDEO_CAP_BLOCK_Y420CMDB 0x0F
3229 #define EDID_BASIC_AUDIO        (1 << 6)
3230 #define EDID_CEA_YCRCB444       (1 << 5)
3231 #define EDID_CEA_YCRCB422       (1 << 4)
3232 #define EDID_CEA_VCDB_QS        (1 << 6)
3233
3234 /*
3235  * Search EDID for CEA extension block.
3236  */
3237 static u8 *drm_find_edid_extension(const struct edid *edid,
3238                                    int ext_id, int *ext_index)
3239 {
3240         u8 *edid_ext = NULL;
3241         int i;
3242
3243         /* No EDID or EDID extensions */
3244         if (edid == NULL || edid->extensions == 0)
3245                 return NULL;
3246
3247         /* Find CEA extension */
3248         for (i = *ext_index; i < edid->extensions; i++) {
3249                 edid_ext = (u8 *)edid + EDID_LENGTH * (i + 1);
3250                 if (edid_ext[0] == ext_id)
3251                         break;
3252         }
3253
3254         if (i >= edid->extensions)
3255                 return NULL;
3256
3257         *ext_index = i + 1;
3258
3259         return edid_ext;
3260 }
3261
3262
3263 static u8 *drm_find_displayid_extension(const struct edid *edid,
3264                                         int *length, int *idx,
3265                                         int *ext_index)
3266 {
3267         u8 *displayid = drm_find_edid_extension(edid, DISPLAYID_EXT, ext_index);
3268         struct displayid_hdr *base;
3269         int ret;
3270
3271         if (!displayid)
3272                 return NULL;
3273
3274         /* EDID extensions block checksum isn't for us */
3275         *length = EDID_LENGTH - 1;
3276         *idx = 1;
3277
3278         ret = validate_displayid(displayid, *length, *idx);
3279         if (ret)
3280                 return NULL;
3281
3282         base = (struct displayid_hdr *)&displayid[*idx];
3283         *length = *idx + sizeof(*base) + base->bytes;
3284
3285         return displayid;
3286 }
3287
3288 static u8 *drm_find_cea_extension(const struct edid *edid)
3289 {
3290         int length, idx;
3291         struct displayid_block *block;
3292         u8 *cea;
3293         u8 *displayid;
3294         int ext_index;
3295
3296         /* Look for a top level CEA extension block */
3297         /* FIXME: make callers iterate through multiple CEA ext blocks? */
3298         ext_index = 0;
3299         cea = drm_find_edid_extension(edid, CEA_EXT, &ext_index);
3300         if (cea)
3301                 return cea;
3302
3303         /* CEA blocks can also be found embedded in a DisplayID block */
3304         ext_index = 0;
3305         for (;;) {
3306                 displayid = drm_find_displayid_extension(edid, &length, &idx,
3307                                                          &ext_index);
3308                 if (!displayid)
3309                         return NULL;
3310
3311                 idx += sizeof(struct displayid_hdr);
3312                 for_each_displayid_db(displayid, block, idx, length) {
3313                         if (block->tag == DATA_BLOCK_CTA)
3314                                 return (u8 *)block;
3315                 }
3316         }
3317
3318         return NULL;
3319 }
3320
3321 static __always_inline const struct drm_display_mode *cea_mode_for_vic(u8 vic)
3322 {
3323         BUILD_BUG_ON(1 + ARRAY_SIZE(edid_cea_modes_1) - 1 != 127);
3324         BUILD_BUG_ON(193 + ARRAY_SIZE(edid_cea_modes_193) - 1 != 219);
3325
3326         if (vic >= 1 && vic < 1 + ARRAY_SIZE(edid_cea_modes_1))
3327                 return &edid_cea_modes_1[vic - 1];
3328         if (vic >= 193 && vic < 193 + ARRAY_SIZE(edid_cea_modes_193))
3329                 return &edid_cea_modes_193[vic - 193];
3330         return NULL;
3331 }
3332
3333 static u8 cea_num_vics(void)
3334 {
3335         return 193 + ARRAY_SIZE(edid_cea_modes_193);
3336 }
3337
3338 static u8 cea_next_vic(u8 vic)
3339 {
3340         if (++vic == 1 + ARRAY_SIZE(edid_cea_modes_1))
3341                 vic = 193;
3342         return vic;
3343 }
3344
3345 /*
3346  * Calculate the alternate clock for the CEA mode
3347  * (60Hz vs. 59.94Hz etc.)
3348  */
3349 static unsigned int
3350 cea_mode_alternate_clock(const struct drm_display_mode *cea_mode)
3351 {
3352         unsigned int clock = cea_mode->clock;
3353
3354         if (drm_mode_vrefresh(cea_mode) % 6 != 0)
3355                 return clock;
3356
3357         /*
3358          * edid_cea_modes contains the 59.94Hz
3359          * variant for 240 and 480 line modes,
3360          * and the 60Hz variant otherwise.
3361          */
3362         if (cea_mode->vdisplay == 240 || cea_mode->vdisplay == 480)
3363                 clock = DIV_ROUND_CLOSEST(clock * 1001, 1000);
3364         else
3365                 clock = DIV_ROUND_CLOSEST(clock * 1000, 1001);
3366
3367         return clock;
3368 }
3369
3370 static bool
3371 cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode)
3372 {
3373         /*
3374          * For certain VICs the spec allows the vertical
3375          * front porch to vary by one or two lines.
3376          *
3377          * cea_modes[] stores the variant with the shortest
3378          * vertical front porch. We can adjust the mode to
3379          * get the other variants by simply increasing the
3380          * vertical front porch length.
3381          */
3382         BUILD_BUG_ON(cea_mode_for_vic(8)->vtotal != 262 ||
3383                      cea_mode_for_vic(9)->vtotal != 262 ||
3384                      cea_mode_for_vic(12)->vtotal != 262 ||
3385                      cea_mode_for_vic(13)->vtotal != 262 ||
3386                      cea_mode_for_vic(23)->vtotal != 312 ||
3387                      cea_mode_for_vic(24)->vtotal != 312 ||
3388                      cea_mode_for_vic(27)->vtotal != 312 ||
3389                      cea_mode_for_vic(28)->vtotal != 312);
3390
3391         if (((vic == 8 || vic == 9 ||
3392               vic == 12 || vic == 13) && mode->vtotal < 263) ||
3393             ((vic == 23 || vic == 24 ||
3394               vic == 27 || vic == 28) && mode->vtotal < 314)) {
3395                 mode->vsync_start++;
3396                 mode->vsync_end++;
3397                 mode->vtotal++;
3398
3399                 return true;
3400         }
3401
3402         return false;
3403 }
3404
3405 static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_match,
3406                                              unsigned int clock_tolerance)
3407 {
3408         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3409         u8 vic;
3410
3411         if (!to_match->clock)
3412                 return 0;
3413
3414         if (to_match->picture_aspect_ratio)
3415                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3416
3417         for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
3418                 struct drm_display_mode cea_mode = *cea_mode_for_vic(vic);
3419                 unsigned int clock1, clock2;
3420
3421                 /* Check both 60Hz and 59.94Hz */
3422                 clock1 = cea_mode.clock;
3423                 clock2 = cea_mode_alternate_clock(&cea_mode);
3424
3425                 if (abs(to_match->clock - clock1) > clock_tolerance &&
3426                     abs(to_match->clock - clock2) > clock_tolerance)
3427                         continue;
3428
3429                 do {
3430                         if (drm_mode_match(to_match, &cea_mode, match_flags))
3431                                 return vic;
3432                 } while (cea_mode_alternate_timings(vic, &cea_mode));
3433         }
3434
3435         return 0;
3436 }
3437
3438 /**
3439  * drm_match_cea_mode - look for a CEA mode matching given mode
3440  * @to_match: display mode
3441  *
3442  * Return: The CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
3443  * mode.
3444  */
3445 u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
3446 {
3447         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3448         u8 vic;
3449
3450         if (!to_match->clock)
3451                 return 0;
3452
3453         if (to_match->picture_aspect_ratio)
3454                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3455
3456         for (vic = 1; vic < cea_num_vics(); vic = cea_next_vic(vic)) {
3457                 struct drm_display_mode cea_mode = *cea_mode_for_vic(vic);
3458                 unsigned int clock1, clock2;
3459
3460                 /* Check both 60Hz and 59.94Hz */
3461                 clock1 = cea_mode.clock;
3462                 clock2 = cea_mode_alternate_clock(&cea_mode);
3463
3464                 if (KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock1) &&
3465                     KHZ2PICOS(to_match->clock) != KHZ2PICOS(clock2))
3466                         continue;
3467
3468                 do {
3469                         if (drm_mode_match(to_match, &cea_mode, match_flags))
3470                                 return vic;
3471                 } while (cea_mode_alternate_timings(vic, &cea_mode));
3472         }
3473
3474         return 0;
3475 }
3476 EXPORT_SYMBOL(drm_match_cea_mode);
3477
3478 static bool drm_valid_cea_vic(u8 vic)
3479 {
3480         return cea_mode_for_vic(vic) != NULL;
3481 }
3482
3483 static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
3484 {
3485         const struct drm_display_mode *mode = cea_mode_for_vic(video_code);
3486
3487         if (mode)
3488                 return mode->picture_aspect_ratio;
3489
3490         return HDMI_PICTURE_ASPECT_NONE;
3491 }
3492
3493 static enum hdmi_picture_aspect drm_get_hdmi_aspect_ratio(const u8 video_code)
3494 {
3495         return edid_4k_modes[video_code].picture_aspect_ratio;
3496 }
3497
3498 /*
3499  * Calculate the alternate clock for HDMI modes (those from the HDMI vendor
3500  * specific block).
3501  */
3502 static unsigned int
3503 hdmi_mode_alternate_clock(const struct drm_display_mode *hdmi_mode)
3504 {
3505         return cea_mode_alternate_clock(hdmi_mode);
3506 }
3507
3508 static u8 drm_match_hdmi_mode_clock_tolerance(const struct drm_display_mode *to_match,
3509                                               unsigned int clock_tolerance)
3510 {
3511         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3512         u8 vic;
3513
3514         if (!to_match->clock)
3515                 return 0;
3516
3517         if (to_match->picture_aspect_ratio)
3518                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3519
3520         for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3521                 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3522                 unsigned int clock1, clock2;
3523
3524                 /* Make sure to also match alternate clocks */
3525                 clock1 = hdmi_mode->clock;
3526                 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3527
3528                 if (abs(to_match->clock - clock1) > clock_tolerance &&
3529                     abs(to_match->clock - clock2) > clock_tolerance)
3530                         continue;
3531
3532                 if (drm_mode_match(to_match, hdmi_mode, match_flags))
3533                         return vic;
3534         }
3535
3536         return 0;
3537 }
3538
3539 /*
3540  * drm_match_hdmi_mode - look for a HDMI mode matching given mode
3541  * @to_match: display mode
3542  *
3543  * An HDMI mode is one defined in the HDMI vendor specific block.
3544  *
3545  * Returns the HDMI Video ID (VIC) of the mode or 0 if it isn't one.
3546  */
3547 static u8 drm_match_hdmi_mode(const struct drm_display_mode *to_match)
3548 {
3549         unsigned int match_flags = DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_FLAGS;
3550         u8 vic;
3551
3552         if (!to_match->clock)
3553                 return 0;
3554
3555         if (to_match->picture_aspect_ratio)
3556                 match_flags |= DRM_MODE_MATCH_ASPECT_RATIO;
3557
3558         for (vic = 1; vic < ARRAY_SIZE(edid_4k_modes); vic++) {
3559                 const struct drm_display_mode *hdmi_mode = &edid_4k_modes[vic];
3560                 unsigned int clock1, clock2;
3561
3562                 /* Make sure to also match alternate clocks */
3563                 clock1 = hdmi_mode->clock;
3564                 clock2 = hdmi_mode_alternate_clock(hdmi_mode);
3565
3566                 if ((KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock1) ||
3567                      KHZ2PICOS(to_match->clock) == KHZ2PICOS(clock2)) &&
3568                     drm_mode_match(to_match, hdmi_mode, match_flags))
3569                         return vic;
3570         }
3571         return 0;
3572 }
3573
3574 static bool drm_valid_hdmi_vic(u8 vic)
3575 {
3576         return vic > 0 && vic < ARRAY_SIZE(edid_4k_modes);
3577 }
3578
3579 static int
3580 add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)
3581 {
3582         struct drm_device *dev = connector->dev;
3583         struct drm_display_mode *mode, *tmp;
3584         LIST_HEAD(list);
3585         int modes = 0;
3586
3587         /* Don't add CEA modes if the CEA extension block is missing */
3588         if (!drm_find_cea_extension(edid))
3589                 return 0;
3590
3591         /*
3592          * Go through all probed modes and create a new mode
3593          * with the alternate clock for certain CEA modes.
3594          */
3595         list_for_each_entry(mode, &connector->probed_modes, head) {
3596                 const struct drm_display_mode *cea_mode = NULL;
3597                 struct drm_display_mode *newmode;
3598                 u8 vic = drm_match_cea_mode(mode);
3599                 unsigned int clock1, clock2;
3600
3601                 if (drm_valid_cea_vic(vic)) {
3602                         cea_mode = cea_mode_for_vic(vic);
3603                         clock2 = cea_mode_alternate_clock(cea_mode);
3604                 } else {
3605                         vic = drm_match_hdmi_mode(mode);
3606                         if (drm_valid_hdmi_vic(vic)) {
3607                                 cea_mode = &edid_4k_modes[vic];
3608                                 clock2 = hdmi_mode_alternate_clock(cea_mode);
3609                         }
3610                 }
3611
3612                 if (!cea_mode)
3613                         continue;
3614
3615                 clock1 = cea_mode->clock;
3616
3617                 if (clock1 == clock2)
3618                         continue;
3619
3620                 if (mode->clock != clock1 && mode->clock != clock2)
3621                         continue;
3622
3623                 newmode = drm_mode_duplicate(dev, cea_mode);
3624                 if (!newmode)
3625                         continue;
3626
3627                 /* Carry over the stereo flags */
3628                 newmode->flags |= mode->flags & DRM_MODE_FLAG_3D_MASK;
3629
3630                 /*
3631                  * The current mode could be either variant. Make
3632                  * sure to pick the "other" clock for the new mode.
3633                  */
3634                 if (mode->clock != clock1)
3635                         newmode->clock = clock1;
3636                 else
3637                         newmode->clock = clock2;
3638
3639                 list_add_tail(&newmode->head, &list);
3640         }
3641
3642         list_for_each_entry_safe(mode, tmp, &list, head) {
3643                 list_del(&mode->head);
3644                 drm_mode_probed_add(connector, mode);
3645                 modes++;
3646         }
3647
3648         return modes;
3649 }
3650
3651 static u8 svd_to_vic(u8 svd)
3652 {
3653         /* 0-6 bit vic, 7th bit native mode indicator */
3654         if ((svd >= 1 &&  svd <= 64) || (svd >= 129 && svd <= 192))
3655                 return svd & 127;
3656
3657         return svd;
3658 }
3659
3660 static struct drm_display_mode *
3661 drm_display_mode_from_vic_index(struct drm_connector *connector,
3662                                 const u8 *video_db, u8 video_len,
3663                                 u8 video_index)
3664 {
3665         struct drm_device *dev = connector->dev;
3666         struct drm_display_mode *newmode;
3667         u8 vic;
3668
3669         if (video_db == NULL || video_index >= video_len)
3670                 return NULL;
3671
3672         /* CEA modes are numbered 1..127 */
3673         vic = svd_to_vic(video_db[video_index]);
3674         if (!drm_valid_cea_vic(vic))
3675                 return NULL;
3676
3677         newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic));
3678         if (!newmode)
3679                 return NULL;
3680
3681         return newmode;
3682 }
3683
3684 /*
3685  * do_y420vdb_modes - Parse YCBCR 420 only modes
3686  * @connector: connector corresponding to the HDMI sink
3687  * @svds: start of the data block of CEA YCBCR 420 VDB
3688  * @len: length of the CEA YCBCR 420 VDB
3689  *
3690  * Parse the CEA-861-F YCBCR 420 Video Data Block (Y420VDB)
3691  * which contains modes which can be supported in YCBCR 420
3692  * output format only.
3693  */
3694 static int do_y420vdb_modes(struct drm_connector *connector,
3695                             const u8 *svds, u8 svds_len)
3696 {
3697         int modes = 0, i;
3698         struct drm_device *dev = connector->dev;
3699         struct drm_display_info *info = &connector->display_info;
3700         struct drm_hdmi_info *hdmi = &info->hdmi;
3701
3702         for (i = 0; i < svds_len; i++) {
3703                 u8 vic = svd_to_vic(svds[i]);
3704                 struct drm_display_mode *newmode;
3705
3706                 if (!drm_valid_cea_vic(vic))
3707                         continue;
3708
3709                 newmode = drm_mode_duplicate(dev, cea_mode_for_vic(vic));
3710                 if (!newmode)
3711                         break;
3712                 bitmap_set(hdmi->y420_vdb_modes, vic, 1);
3713                 drm_mode_probed_add(connector, newmode);
3714                 modes++;
3715         }
3716
3717         if (modes > 0)
3718                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
3719         return modes;
3720 }
3721
3722 /*
3723  * drm_add_cmdb_modes - Add a YCBCR 420 mode into bitmap
3724  * @connector: connector corresponding to the HDMI sink
3725  * @vic: CEA vic for the video mode to be added in the map
3726  *
3727  * Makes an entry for a videomode in the YCBCR 420 bitmap
3728  */
3729 static void
3730 drm_add_cmdb_modes(struct drm_connector *connector, u8 svd)
3731 {
3732         u8 vic = svd_to_vic(svd);
3733         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3734
3735         if (!drm_valid_cea_vic(vic))
3736                 return;
3737
3738         bitmap_set(hdmi->y420_cmdb_modes, vic, 1);
3739 }
3740
3741 static int
3742 do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
3743 {
3744         int i, modes = 0;
3745         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
3746
3747         for (i = 0; i < len; i++) {
3748                 struct drm_display_mode *mode;
3749
3750                 mode = drm_display_mode_from_vic_index(connector, db, len, i);
3751                 if (mode) {
3752                         /*
3753                          * YCBCR420 capability block contains a bitmap which
3754                          * gives the index of CEA modes from CEA VDB, which
3755                          * can support YCBCR 420 sampling output also (apart
3756                          * from RGB/YCBCR444 etc).
3757                          * For example, if the bit 0 in bitmap is set,
3758                          * first mode in VDB can support YCBCR420 output too.
3759                          * Add YCBCR420 modes only if sink is HDMI 2.0 capable.
3760                          */
3761                         if (i < 64 && hdmi->y420_cmdb_map & (1ULL << i))
3762                                 drm_add_cmdb_modes(connector, db[i]);
3763
3764                         drm_mode_probed_add(connector, mode);
3765                         modes++;
3766                 }
3767         }
3768
3769         return modes;
3770 }
3771
3772 struct stereo_mandatory_mode {
3773         int width, height, vrefresh;
3774         unsigned int flags;
3775 };
3776
3777 static const struct stereo_mandatory_mode stereo_mandatory_modes[] = {
3778         { 1920, 1080, 24, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3779         { 1920, 1080, 24, DRM_MODE_FLAG_3D_FRAME_PACKING },
3780         { 1920, 1080, 50,
3781           DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
3782         { 1920, 1080, 60,
3783           DRM_MODE_FLAG_INTERLACE | DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF },
3784         { 1280, 720,  50, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3785         { 1280, 720,  50, DRM_MODE_FLAG_3D_FRAME_PACKING },
3786         { 1280, 720,  60, DRM_MODE_FLAG_3D_TOP_AND_BOTTOM },
3787         { 1280, 720,  60, DRM_MODE_FLAG_3D_FRAME_PACKING }
3788 };
3789
3790 static bool
3791 stereo_match_mandatory(const struct drm_display_mode *mode,
3792                        const struct stereo_mandatory_mode *stereo_mode)
3793 {
3794         unsigned int interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE;
3795
3796         return mode->hdisplay == stereo_mode->width &&
3797                mode->vdisplay == stereo_mode->height &&
3798                interlaced == (stereo_mode->flags & DRM_MODE_FLAG_INTERLACE) &&
3799                drm_mode_vrefresh(mode) == stereo_mode->vrefresh;
3800 }
3801
3802 static int add_hdmi_mandatory_stereo_modes(struct drm_connector *connector)
3803 {
3804         struct drm_device *dev = connector->dev;
3805         const struct drm_display_mode *mode;
3806         struct list_head stereo_modes;
3807         int modes = 0, i;
3808
3809         INIT_LIST_HEAD(&stereo_modes);
3810
3811         list_for_each_entry(mode, &connector->probed_modes, head) {
3812                 for (i = 0; i < ARRAY_SIZE(stereo_mandatory_modes); i++) {
3813                         const struct stereo_mandatory_mode *mandatory;
3814                         struct drm_display_mode *new_mode;
3815
3816                         if (!stereo_match_mandatory(mode,
3817                                                     &stereo_mandatory_modes[i]))
3818                                 continue;
3819
3820                         mandatory = &stereo_mandatory_modes[i];
3821                         new_mode = drm_mode_duplicate(dev, mode);
3822                         if (!new_mode)
3823                                 continue;
3824
3825                         new_mode->flags |= mandatory->flags;
3826                         list_add_tail(&new_mode->head, &stereo_modes);
3827                         modes++;
3828                 }
3829         }
3830
3831         list_splice_tail(&stereo_modes, &connector->probed_modes);
3832
3833         return modes;
3834 }
3835
3836 static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
3837 {
3838         struct drm_device *dev = connector->dev;
3839         struct drm_display_mode *newmode;
3840
3841         if (!drm_valid_hdmi_vic(vic)) {
3842                 DRM_ERROR("Unknown HDMI VIC: %d\n", vic);
3843                 return 0;
3844         }
3845
3846         newmode = drm_mode_duplicate(dev, &edid_4k_modes[vic]);
3847         if (!newmode)
3848                 return 0;
3849
3850         drm_mode_probed_add(connector, newmode);
3851
3852         return 1;
3853 }
3854
3855 static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
3856                                const u8 *video_db, u8 video_len, u8 video_index)
3857 {
3858         struct drm_display_mode *newmode;
3859         int modes = 0;
3860
3861         if (structure & (1 << 0)) {
3862                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3863                                                           video_len,
3864                                                           video_index);
3865                 if (newmode) {
3866                         newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
3867                         drm_mode_probed_add(connector, newmode);
3868                         modes++;
3869                 }
3870         }
3871         if (structure & (1 << 6)) {
3872                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3873                                                           video_len,
3874                                                           video_index);
3875                 if (newmode) {
3876                         newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
3877                         drm_mode_probed_add(connector, newmode);
3878                         modes++;
3879                 }
3880         }
3881         if (structure & (1 << 8)) {
3882                 newmode = drm_display_mode_from_vic_index(connector, video_db,
3883                                                           video_len,
3884                                                           video_index);
3885                 if (newmode) {
3886                         newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
3887                         drm_mode_probed_add(connector, newmode);
3888                         modes++;
3889                 }
3890         }
3891
3892         return modes;
3893 }
3894
3895 /*
3896  * do_hdmi_vsdb_modes - Parse the HDMI Vendor Specific data block
3897  * @connector: connector corresponding to the HDMI sink
3898  * @db: start of the CEA vendor specific block
3899  * @len: length of the CEA block payload, ie. one can access up to db[len]
3900  *
3901  * Parses the HDMI VSDB looking for modes to add to @connector. This function
3902  * also adds the stereo 3d modes when applicable.
3903  */
3904 static int
3905 do_hdmi_vsdb_modes(struct drm_connector *connector, const u8 *db, u8 len,
3906                    const u8 *video_db, u8 video_len)
3907 {
3908         struct drm_display_info *info = &connector->display_info;
3909         int modes = 0, offset = 0, i, multi_present = 0, multi_len;
3910         u8 vic_len, hdmi_3d_len = 0;
3911         u16 mask;
3912         u16 structure_all;
3913
3914         if (len < 8)
3915                 goto out;
3916
3917         /* no HDMI_Video_Present */
3918         if (!(db[8] & (1 << 5)))
3919                 goto out;
3920
3921         /* Latency_Fields_Present */
3922         if (db[8] & (1 << 7))
3923                 offset += 2;
3924
3925         /* I_Latency_Fields_Present */
3926         if (db[8] & (1 << 6))
3927                 offset += 2;
3928
3929         /* the declared length is not long enough for the 2 first bytes
3930          * of additional video format capabilities */
3931         if (len < (8 + offset + 2))
3932                 goto out;
3933
3934         /* 3D_Present */
3935         offset++;
3936         if (db[8 + offset] & (1 << 7)) {
3937                 modes += add_hdmi_mandatory_stereo_modes(connector);
3938
3939                 /* 3D_Multi_present */
3940                 multi_present = (db[8 + offset] & 0x60) >> 5;
3941         }
3942
3943         offset++;
3944         vic_len = db[8 + offset] >> 5;
3945         hdmi_3d_len = db[8 + offset] & 0x1f;
3946
3947         for (i = 0; i < vic_len && len >= (9 + offset + i); i++) {
3948                 u8 vic;
3949
3950                 vic = db[9 + offset + i];
3951                 modes += add_hdmi_mode(connector, vic);
3952         }
3953         offset += 1 + vic_len;
3954
3955         if (multi_present == 1)
3956                 multi_len = 2;
3957         else if (multi_present == 2)
3958                 multi_len = 4;
3959         else
3960                 multi_len = 0;
3961
3962         if (len < (8 + offset + hdmi_3d_len - 1))
3963                 goto out;
3964
3965         if (hdmi_3d_len < multi_len)
3966                 goto out;
3967
3968         if (multi_present == 1 || multi_present == 2) {
3969                 /* 3D_Structure_ALL */
3970                 structure_all = (db[8 + offset] << 8) | db[9 + offset];
3971
3972                 /* check if 3D_MASK is present */
3973                 if (multi_present == 2)
3974                         mask = (db[10 + offset] << 8) | db[11 + offset];
3975                 else
3976                         mask = 0xffff;
3977
3978                 for (i = 0; i < 16; i++) {
3979                         if (mask & (1 << i))
3980                                 modes += add_3d_struct_modes(connector,
3981                                                 structure_all,
3982                                                 video_db,
3983                                                 video_len, i);
3984                 }
3985         }
3986
3987         offset += multi_len;
3988
3989         for (i = 0; i < (hdmi_3d_len - multi_len); i++) {
3990                 int vic_index;
3991                 struct drm_display_mode *newmode = NULL;
3992                 unsigned int newflag = 0;
3993                 bool detail_present;
3994
3995                 detail_present = ((db[8 + offset + i] & 0x0f) > 7);
3996
3997                 if (detail_present && (i + 1 == hdmi_3d_len - multi_len))
3998                         break;
3999
4000                 /* 2D_VIC_order_X */
4001                 vic_index = db[8 + offset + i] >> 4;
4002
4003                 /* 3D_Structure_X */
4004                 switch (db[8 + offset + i] & 0x0f) {
4005                 case 0:
4006                         newflag = DRM_MODE_FLAG_3D_FRAME_PACKING;
4007                         break;
4008                 case 6:
4009                         newflag = DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
4010                         break;
4011                 case 8:
4012                         /* 3D_Detail_X */
4013                         if ((db[9 + offset + i] >> 4) == 1)
4014                                 newflag = DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
4015                         break;
4016                 }
4017
4018                 if (newflag != 0) {
4019                         newmode = drm_display_mode_from_vic_index(connector,
4020                                                                   video_db,
4021                                                                   video_len,
4022                                                                   vic_index);
4023
4024                         if (newmode) {
4025                                 newmode->flags |= newflag;
4026                                 drm_mode_probed_add(connector, newmode);
4027                                 modes++;
4028                         }
4029                 }
4030
4031                 if (detail_present)
4032                         i++;
4033         }
4034
4035 out:
4036         if (modes > 0)
4037                 info->has_hdmi_infoframe = true;
4038         return modes;
4039 }
4040
4041 static int
4042 cea_db_payload_len(const u8 *db)
4043 {
4044         return db[0] & 0x1f;
4045 }
4046
4047 static int
4048 cea_db_extended_tag(const u8 *db)
4049 {
4050         return db[1];
4051 }
4052
4053 static int
4054 cea_db_tag(const u8 *db)
4055 {
4056         return db[0] >> 5;
4057 }
4058
4059 static int
4060 cea_revision(const u8 *cea)
4061 {
4062         /*
4063          * FIXME is this correct for the DispID variant?
4064          * The DispID spec doesn't really specify whether
4065          * this is the revision of the CEA extension or
4066          * the DispID CEA data block. And the only value
4067          * given as an example is 0.
4068          */
4069         return cea[1];
4070 }
4071
4072 static int
4073 cea_db_offsets(const u8 *cea, int *start, int *end)
4074 {
4075         /* DisplayID CTA extension blocks and top-level CEA EDID
4076          * block header definitions differ in the following bytes:
4077          *   1) Byte 2 of the header specifies length differently,
4078          *   2) Byte 3 is only present in the CEA top level block.
4079          *
4080          * The different definitions for byte 2 follow.
4081          *
4082          * DisplayID CTA extension block defines byte 2 as:
4083          *   Number of payload bytes
4084          *
4085          * CEA EDID block defines byte 2 as:
4086          *   Byte number (decimal) within this block where the 18-byte
4087          *   DTDs begin. If no non-DTD data is present in this extension
4088          *   block, the value should be set to 04h (the byte after next).
4089          *   If set to 00h, there are no DTDs present in this block and
4090          *   no non-DTD data.
4091          */
4092         if (cea[0] == DATA_BLOCK_CTA) {
4093                 /*
4094                  * for_each_displayid_db() has already verified
4095                  * that these stay within expected bounds.
4096                  */
4097                 *start = 3;
4098                 *end = *start + cea[2];
4099         } else if (cea[0] == CEA_EXT) {
4100                 /* Data block offset in CEA extension block */
4101                 *start = 4;
4102                 *end = cea[2];
4103                 if (*end == 0)
4104                         *end = 127;
4105                 if (*end < 4 || *end > 127)
4106                         return -ERANGE;
4107         } else {
4108                 return -EOPNOTSUPP;
4109         }
4110
4111         return 0;
4112 }
4113
4114 static bool cea_db_is_hdmi_vsdb(const u8 *db)
4115 {
4116         int hdmi_id;
4117
4118         if (cea_db_tag(db) != VENDOR_BLOCK)
4119                 return false;
4120
4121         if (cea_db_payload_len(db) < 5)
4122                 return false;
4123
4124         hdmi_id = db[1] | (db[2] << 8) | (db[3] << 16);
4125
4126         return hdmi_id == HDMI_IEEE_OUI;
4127 }
4128
4129 static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
4130 {
4131         unsigned int oui;
4132
4133         if (cea_db_tag(db) != VENDOR_BLOCK)
4134                 return false;
4135
4136         if (cea_db_payload_len(db) < 7)
4137                 return false;
4138
4139         oui = db[3] << 16 | db[2] << 8 | db[1];
4140
4141         return oui == HDMI_FORUM_IEEE_OUI;
4142 }
4143
4144 static bool cea_db_is_vcdb(const u8 *db)
4145 {
4146         if (cea_db_tag(db) != USE_EXTENDED_TAG)
4147                 return false;
4148
4149         if (cea_db_payload_len(db) != 2)
4150                 return false;
4151
4152         if (cea_db_extended_tag(db) != EXT_VIDEO_CAPABILITY_BLOCK)
4153                 return false;
4154
4155         return true;
4156 }
4157
4158 static bool cea_db_is_y420cmdb(const u8 *db)
4159 {
4160         if (cea_db_tag(db) != USE_EXTENDED_TAG)
4161                 return false;
4162
4163         if (!cea_db_payload_len(db))
4164                 return false;
4165
4166         if (cea_db_extended_tag(db) != EXT_VIDEO_CAP_BLOCK_Y420CMDB)
4167                 return false;
4168
4169         return true;
4170 }
4171
4172 static bool cea_db_is_y420vdb(const u8 *db)
4173 {
4174         if (cea_db_tag(db) != USE_EXTENDED_TAG)
4175                 return false;
4176
4177         if (!cea_db_payload_len(db))
4178                 return false;
4179
4180         if (cea_db_extended_tag(db) != EXT_VIDEO_DATA_BLOCK_420)
4181                 return false;
4182
4183         return true;
4184 }
4185
4186 #define for_each_cea_db(cea, i, start, end) \
4187         for ((i) = (start); (i) < (end) && (i) + cea_db_payload_len(&(cea)[(i)]) < (end); (i) += cea_db_payload_len(&(cea)[(i)]) + 1)
4188
4189 static void drm_parse_y420cmdb_bitmap(struct drm_connector *connector,
4190                                       const u8 *db)
4191 {
4192         struct drm_display_info *info = &connector->display_info;
4193         struct drm_hdmi_info *hdmi = &info->hdmi;
4194         u8 map_len = cea_db_payload_len(db) - 1;
4195         u8 count;
4196         u64 map = 0;
4197
4198         if (map_len == 0) {
4199                 /* All CEA modes support ycbcr420 sampling also.*/
4200                 hdmi->y420_cmdb_map = U64_MAX;
4201                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
4202                 return;
4203         }
4204
4205         /*
4206          * This map indicates which of the existing CEA block modes
4207          * from VDB can support YCBCR420 output too. So if bit=0 is
4208          * set, first mode from VDB can support YCBCR420 output too.
4209          * We will parse and keep this map, before parsing VDB itself
4210          * to avoid going through the same block again and again.
4211          *
4212          * Spec is not clear about max possible size of this block.
4213          * Clamping max bitmap block size at 8 bytes. Every byte can
4214          * address 8 CEA modes, in this way this map can address
4215          * 8*8 = first 64 SVDs.
4216          */
4217         if (WARN_ON_ONCE(map_len > 8))
4218                 map_len = 8;
4219
4220         for (count = 0; count < map_len; count++)
4221                 map |= (u64)db[2 + count] << (8 * count);
4222
4223         if (map)
4224                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB420;
4225
4226         hdmi->y420_cmdb_map = map;
4227 }
4228
4229 static int
4230 add_cea_modes(struct drm_connector *connector, struct edid *edid)
4231 {
4232         const u8 *cea = drm_find_cea_extension(edid);
4233         const u8 *db, *hdmi = NULL, *video = NULL;
4234         u8 dbl, hdmi_len, video_len = 0;
4235         int modes = 0;
4236
4237         if (cea && cea_revision(cea) >= 3) {
4238                 int i, start, end;
4239
4240                 if (cea_db_offsets(cea, &start, &end))
4241                         return 0;
4242
4243                 for_each_cea_db(cea, i, start, end) {
4244                         db = &cea[i];
4245                         dbl = cea_db_payload_len(db);
4246
4247                         if (cea_db_tag(db) == VIDEO_BLOCK) {
4248                                 video = db + 1;
4249                                 video_len = dbl;
4250                                 modes += do_cea_modes(connector, video, dbl);
4251                         } else if (cea_db_is_hdmi_vsdb(db)) {
4252                                 hdmi = db;
4253                                 hdmi_len = dbl;
4254                         } else if (cea_db_is_y420vdb(db)) {
4255                                 const u8 *vdb420 = &db[2];
4256
4257                                 /* Add 4:2:0(only) modes present in EDID */
4258                                 modes += do_y420vdb_modes(connector,
4259                                                           vdb420,
4260                                                           dbl - 1);
4261                         }
4262                 }
4263         }
4264
4265         /*
4266          * We parse the HDMI VSDB after having added the cea modes as we will
4267          * be patching their flags when the sink supports stereo 3D.
4268          */
4269         if (hdmi)
4270                 modes += do_hdmi_vsdb_modes(connector, hdmi, hdmi_len, video,
4271                                             video_len);
4272
4273         return modes;
4274 }
4275
4276 static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode)
4277 {
4278         const struct drm_display_mode *cea_mode;
4279         int clock1, clock2, clock;
4280         u8 vic;
4281         const char *type;
4282
4283         /*
4284          * allow 5kHz clock difference either way to account for
4285          * the 10kHz clock resolution limit of detailed timings.
4286          */
4287         vic = drm_match_cea_mode_clock_tolerance(mode, 5);
4288         if (drm_valid_cea_vic(vic)) {
4289                 type = "CEA";
4290                 cea_mode = cea_mode_for_vic(vic);
4291                 clock1 = cea_mode->clock;
4292                 clock2 = cea_mode_alternate_clock(cea_mode);
4293         } else {
4294                 vic = drm_match_hdmi_mode_clock_tolerance(mode, 5);
4295                 if (drm_valid_hdmi_vic(vic)) {
4296                         type = "HDMI";
4297                         cea_mode = &edid_4k_modes[vic];
4298                         clock1 = cea_mode->clock;
4299                         clock2 = hdmi_mode_alternate_clock(cea_mode);
4300                 } else {
4301                         return;
4302                 }
4303         }
4304
4305         /* pick whichever is closest */
4306         if (abs(mode->clock - clock1) < abs(mode->clock - clock2))
4307                 clock = clock1;
4308         else
4309                 clock = clock2;
4310
4311         if (mode->clock == clock)
4312                 return;
4313
4314         DRM_DEBUG("detailed mode matches %s VIC %d, adjusting clock %d -> %d\n",
4315                   type, vic, mode->clock, clock);
4316         mode->clock = clock;
4317 }
4318
4319 static bool cea_db_is_hdmi_hdr_metadata_block(const u8 *db)
4320 {
4321         if (cea_db_tag(db) != USE_EXTENDED_TAG)
4322                 return false;
4323
4324         if (db[1] != HDR_STATIC_METADATA_BLOCK)
4325                 return false;
4326
4327         if (cea_db_payload_len(db) < 3)
4328                 return false;
4329
4330         return true;
4331 }
4332
4333 static uint8_t eotf_supported(const u8 *edid_ext)
4334 {
4335         return edid_ext[2] &
4336                 (BIT(HDMI_EOTF_TRADITIONAL_GAMMA_SDR) |
4337                  BIT(HDMI_EOTF_TRADITIONAL_GAMMA_HDR) |
4338                  BIT(HDMI_EOTF_SMPTE_ST2084) |
4339                  BIT(HDMI_EOTF_BT_2100_HLG));
4340 }
4341
4342 static uint8_t hdr_metadata_type(const u8 *edid_ext)
4343 {
4344         return edid_ext[3] &
4345                 BIT(HDMI_STATIC_METADATA_TYPE1);
4346 }
4347
4348 static void
4349 drm_parse_hdr_metadata_block(struct drm_connector *connector, const u8 *db)
4350 {
4351         u16 len;
4352
4353         len = cea_db_payload_len(db);
4354
4355         connector->hdr_sink_metadata.hdmi_type1.eotf =
4356                                                 eotf_supported(db);
4357         connector->hdr_sink_metadata.hdmi_type1.metadata_type =
4358                                                 hdr_metadata_type(db);
4359
4360         if (len >= 4)
4361                 connector->hdr_sink_metadata.hdmi_type1.max_cll = db[4];
4362         if (len >= 5)
4363                 connector->hdr_sink_metadata.hdmi_type1.max_fall = db[5];
4364         if (len >= 6)
4365                 connector->hdr_sink_metadata.hdmi_type1.min_cll = db[6];
4366 }
4367
4368 static void
4369 drm_parse_hdmi_vsdb_audio(struct drm_connector *connector, const u8 *db)
4370 {
4371         u8 len = cea_db_payload_len(db);
4372
4373         if (len >= 6 && (db[6] & (1 << 7)))
4374                 connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_SUPPORTS_AI;
4375         if (len >= 8) {
4376                 connector->latency_present[0] = db[8] >> 7;
4377                 connector->latency_present[1] = (db[8] >> 6) & 1;
4378         }
4379         if (len >= 9)
4380                 connector->video_latency[0] = db[9];
4381         if (len >= 10)
4382                 connector->audio_latency[0] = db[10];
4383         if (len >= 11)
4384                 connector->video_latency[1] = db[11];
4385         if (len >= 12)
4386                 connector->audio_latency[1] = db[12];
4387
4388         DRM_DEBUG_KMS("HDMI: latency present %d %d, "
4389                       "video latency %d %d, "
4390                       "audio latency %d %d\n",
4391                       connector->latency_present[0],
4392                       connector->latency_present[1],
4393                       connector->video_latency[0],
4394                       connector->video_latency[1],
4395                       connector->audio_latency[0],
4396                       connector->audio_latency[1]);
4397 }
4398
4399 static void
4400 monitor_name(struct detailed_timing *t, void *data)
4401 {
4402         if (!is_display_descriptor((const u8 *)t, EDID_DETAIL_MONITOR_NAME))
4403                 return;
4404
4405         *(u8 **)data = t->data.other_data.data.str.str;
4406 }
4407
4408 static int get_monitor_name(struct edid *edid, char name[13])
4409 {
4410         char *edid_name = NULL;
4411         int mnl;
4412
4413         if (!edid || !name)
4414                 return 0;
4415
4416         drm_for_each_detailed_block((u8 *)edid, monitor_name, &edid_name);
4417         for (mnl = 0; edid_name && mnl < 13; mnl++) {
4418                 if (edid_name[mnl] == 0x0a)
4419                         break;
4420
4421                 name[mnl] = edid_name[mnl];
4422         }
4423
4424         return mnl;
4425 }
4426
4427 /**
4428  * drm_edid_get_monitor_name - fetch the monitor name from the edid
4429  * @edid: monitor EDID information
4430  * @name: pointer to a character array to hold the name of the monitor
4431  * @bufsize: The size of the name buffer (should be at least 14 chars.)
4432  *
4433  */
4434 void drm_edid_get_monitor_name(struct edid *edid, char *name, int bufsize)
4435 {
4436         int name_length;
4437         char buf[13];
4438
4439         if (bufsize <= 0)
4440                 return;
4441
4442         name_length = min(get_monitor_name(edid, buf), bufsize - 1);
4443         memcpy(name, buf, name_length);
4444         name[name_length] = '\0';
4445 }
4446 EXPORT_SYMBOL(drm_edid_get_monitor_name);
4447
4448 static void clear_eld(struct drm_connector *connector)
4449 {
4450         memset(connector->eld, 0, sizeof(connector->eld));
4451
4452         connector->latency_present[0] = false;
4453         connector->latency_present[1] = false;
4454         connector->video_latency[0] = 0;
4455         connector->audio_latency[0] = 0;
4456         connector->video_latency[1] = 0;
4457         connector->audio_latency[1] = 0;
4458 }
4459
4460 /*
4461  * drm_edid_to_eld - build ELD from EDID
4462  * @connector: connector corresponding to the HDMI/DP sink
4463  * @edid: EDID to parse
4464  *
4465  * Fill the ELD (EDID-Like Data) buffer for passing to the audio driver. The
4466  * HDCP and Port_ID ELD fields are left for the graphics driver to fill in.
4467  */
4468 static void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
4469 {
4470         uint8_t *eld = connector->eld;
4471         u8 *cea;
4472         u8 *db;
4473         int total_sad_count = 0;
4474         int mnl;
4475         int dbl;
4476
4477         clear_eld(connector);
4478
4479         if (!edid)
4480                 return;
4481
4482         cea = drm_find_cea_extension(edid);
4483         if (!cea) {
4484                 DRM_DEBUG_KMS("ELD: no CEA Extension found\n");
4485                 return;
4486         }
4487
4488         mnl = get_monitor_name(edid, &eld[DRM_ELD_MONITOR_NAME_STRING]);
4489         DRM_DEBUG_KMS("ELD monitor %s\n", &eld[DRM_ELD_MONITOR_NAME_STRING]);
4490
4491         eld[DRM_ELD_CEA_EDID_VER_MNL] = cea[1] << DRM_ELD_CEA_EDID_VER_SHIFT;
4492         eld[DRM_ELD_CEA_EDID_VER_MNL] |= mnl;
4493
4494         eld[DRM_ELD_VER] = DRM_ELD_VER_CEA861D;
4495
4496         eld[DRM_ELD_MANUFACTURER_NAME0] = edid->mfg_id[0];
4497         eld[DRM_ELD_MANUFACTURER_NAME1] = edid->mfg_id[1];
4498         eld[DRM_ELD_PRODUCT_CODE0] = edid->prod_code[0];
4499         eld[DRM_ELD_PRODUCT_CODE1] = edid->prod_code[1];
4500
4501         if (cea_revision(cea) >= 3) {
4502                 int i, start, end;
4503                 int sad_count;
4504
4505                 if (cea_db_offsets(cea, &start, &end)) {
4506                         start = 0;
4507                         end = 0;
4508                 }
4509
4510                 for_each_cea_db(cea, i, start, end) {
4511                         db = &cea[i];
4512                         dbl = cea_db_payload_len(db);
4513
4514                         switch (cea_db_tag(db)) {
4515                         case AUDIO_BLOCK:
4516                                 /* Audio Data Block, contains SADs */
4517                                 sad_count = min(dbl / 3, 15 - total_sad_count);
4518                                 if (sad_count >= 1)
4519                                         memcpy(&eld[DRM_ELD_CEA_SAD(mnl, total_sad_count)],
4520                                                &db[1], sad_count * 3);
4521                                 total_sad_count += sad_count;
4522                                 break;
4523                         case SPEAKER_BLOCK:
4524                                 /* Speaker Allocation Data Block */
4525                                 if (dbl >= 1)
4526                                         eld[DRM_ELD_SPEAKER] = db[1];
4527                                 break;
4528                         case VENDOR_BLOCK:
4529                                 /* HDMI Vendor-Specific Data Block */
4530                                 if (cea_db_is_hdmi_vsdb(db))
4531                                         drm_parse_hdmi_vsdb_audio(connector, db);
4532                                 break;
4533                         default:
4534                                 break;
4535                         }
4536                 }
4537         }
4538         eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= total_sad_count << DRM_ELD_SAD_COUNT_SHIFT;
4539
4540         if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
4541             connector->connector_type == DRM_MODE_CONNECTOR_eDP)
4542                 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_DP;
4543         else
4544                 eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= DRM_ELD_CONN_TYPE_HDMI;
4545
4546         eld[DRM_ELD_BASELINE_ELD_LEN] =
4547                 DIV_ROUND_UP(drm_eld_calc_baseline_block_size(eld), 4);
4548
4549         DRM_DEBUG_KMS("ELD size %d, SAD count %d\n",
4550                       drm_eld_size(eld), total_sad_count);
4551 }
4552
4553 /**
4554  * drm_edid_to_sad - extracts SADs from EDID
4555  * @edid: EDID to parse
4556  * @sads: pointer that will be set to the extracted SADs
4557  *
4558  * Looks for CEA EDID block and extracts SADs (Short Audio Descriptors) from it.
4559  *
4560  * Note: The returned pointer needs to be freed using kfree().
4561  *
4562  * Return: The number of found SADs or negative number on error.
4563  */
4564 int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads)
4565 {
4566         int count = 0;
4567         int i, start, end, dbl;
4568         u8 *cea;
4569
4570         cea = drm_find_cea_extension(edid);
4571         if (!cea) {
4572                 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4573                 return 0;
4574         }
4575
4576         if (cea_revision(cea) < 3) {
4577                 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4578                 return 0;
4579         }
4580
4581         if (cea_db_offsets(cea, &start, &end)) {
4582                 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4583                 return -EPROTO;
4584         }
4585
4586         for_each_cea_db(cea, i, start, end) {
4587                 u8 *db = &cea[i];
4588
4589                 if (cea_db_tag(db) == AUDIO_BLOCK) {
4590                         int j;
4591
4592                         dbl = cea_db_payload_len(db);
4593
4594                         count = dbl / 3; /* SAD is 3B */
4595                         *sads = kcalloc(count, sizeof(**sads), GFP_KERNEL);
4596                         if (!*sads)
4597                                 return -ENOMEM;
4598                         for (j = 0; j < count; j++) {
4599                                 u8 *sad = &db[1 + j * 3];
4600
4601                                 (*sads)[j].format = (sad[0] & 0x78) >> 3;
4602                                 (*sads)[j].channels = sad[0] & 0x7;
4603                                 (*sads)[j].freq = sad[1] & 0x7F;
4604                                 (*sads)[j].byte2 = sad[2];
4605                         }
4606                         break;
4607                 }
4608         }
4609
4610         return count;
4611 }
4612 EXPORT_SYMBOL(drm_edid_to_sad);
4613
4614 /**
4615  * drm_edid_to_speaker_allocation - extracts Speaker Allocation Data Blocks from EDID
4616  * @edid: EDID to parse
4617  * @sadb: pointer to the speaker block
4618  *
4619  * Looks for CEA EDID block and extracts the Speaker Allocation Data Block from it.
4620  *
4621  * Note: The returned pointer needs to be freed using kfree().
4622  *
4623  * Return: The number of found Speaker Allocation Blocks or negative number on
4624  * error.
4625  */
4626 int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb)
4627 {
4628         int count = 0;
4629         int i, start, end, dbl;
4630         const u8 *cea;
4631
4632         cea = drm_find_cea_extension(edid);
4633         if (!cea) {
4634                 DRM_DEBUG_KMS("SAD: no CEA Extension found\n");
4635                 return 0;
4636         }
4637
4638         if (cea_revision(cea) < 3) {
4639                 DRM_DEBUG_KMS("SAD: wrong CEA revision\n");
4640                 return 0;
4641         }
4642
4643         if (cea_db_offsets(cea, &start, &end)) {
4644                 DRM_DEBUG_KMS("SAD: invalid data block offsets\n");
4645                 return -EPROTO;
4646         }
4647
4648         for_each_cea_db(cea, i, start, end) {
4649                 const u8 *db = &cea[i];
4650
4651                 if (cea_db_tag(db) == SPEAKER_BLOCK) {
4652                         dbl = cea_db_payload_len(db);
4653
4654                         /* Speaker Allocation Data Block */
4655                         if (dbl == 3) {
4656                                 *sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
4657                                 if (!*sadb)
4658                                         return -ENOMEM;
4659                                 count = dbl;
4660                                 break;
4661                         }
4662                 }
4663         }
4664
4665         return count;
4666 }
4667 EXPORT_SYMBOL(drm_edid_to_speaker_allocation);
4668
4669 /**
4670  * drm_av_sync_delay - compute the HDMI/DP sink audio-video sync delay
4671  * @connector: connector associated with the HDMI/DP sink
4672  * @mode: the display mode
4673  *
4674  * Return: The HDMI/DP sink's audio-video sync delay in milliseconds or 0 if
4675  * the sink doesn't support audio or video.
4676  */
4677 int drm_av_sync_delay(struct drm_connector *connector,
4678                       const struct drm_display_mode *mode)
4679 {
4680         int i = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
4681         int a, v;
4682
4683         if (!connector->latency_present[0])
4684                 return 0;
4685         if (!connector->latency_present[1])
4686                 i = 0;
4687
4688         a = connector->audio_latency[i];
4689         v = connector->video_latency[i];
4690
4691         /*
4692          * HDMI/DP sink doesn't support audio or video?
4693          */
4694         if (a == 255 || v == 255)
4695                 return 0;
4696
4697         /*
4698          * Convert raw EDID values to millisecond.
4699          * Treat unknown latency as 0ms.
4700          */
4701         if (a)
4702                 a = min(2 * (a - 1), 500);
4703         if (v)
4704                 v = min(2 * (v - 1), 500);
4705
4706         return max(v - a, 0);
4707 }
4708 EXPORT_SYMBOL(drm_av_sync_delay);
4709
4710 /**
4711  * drm_detect_hdmi_monitor - detect whether monitor is HDMI
4712  * @edid: monitor EDID information
4713  *
4714  * Parse the CEA extension according to CEA-861-B.
4715  *
4716  * Drivers that have added the modes parsed from EDID to drm_display_info
4717  * should use &drm_display_info.is_hdmi instead of calling this function.
4718  *
4719  * Return: True if the monitor is HDMI, false if not or unknown.
4720  */
4721 bool drm_detect_hdmi_monitor(struct edid *edid)
4722 {
4723         u8 *edid_ext;
4724         int i;
4725         int start_offset, end_offset;
4726
4727         edid_ext = drm_find_cea_extension(edid);
4728         if (!edid_ext)
4729                 return false;
4730
4731         if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
4732                 return false;
4733
4734         /*
4735          * Because HDMI identifier is in Vendor Specific Block,
4736          * search it from all data blocks of CEA extension.
4737          */
4738         for_each_cea_db(edid_ext, i, start_offset, end_offset) {
4739                 if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
4740                         return true;
4741         }
4742
4743         return false;
4744 }
4745 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
4746
4747 /**
4748  * drm_detect_monitor_audio - check monitor audio capability
4749  * @edid: EDID block to scan
4750  *
4751  * Monitor should have CEA extension block.
4752  * If monitor has 'basic audio', but no CEA audio blocks, it's 'basic
4753  * audio' only. If there is any audio extension block and supported
4754  * audio format, assume at least 'basic audio' support, even if 'basic
4755  * audio' is not defined in EDID.
4756  *
4757  * Return: True if the monitor supports audio, false otherwise.
4758  */
4759 bool drm_detect_monitor_audio(struct edid *edid)
4760 {
4761         u8 *edid_ext;
4762         int i, j;
4763         bool has_audio = false;
4764         int start_offset, end_offset;
4765
4766         edid_ext = drm_find_cea_extension(edid);
4767         if (!edid_ext)
4768                 goto end;
4769
4770         has_audio = ((edid_ext[3] & EDID_BASIC_AUDIO) != 0);
4771
4772         if (has_audio) {
4773                 DRM_DEBUG_KMS("Monitor has basic audio support\n");
4774                 goto end;
4775         }
4776
4777         if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
4778                 goto end;
4779
4780         for_each_cea_db(edid_ext, i, start_offset, end_offset) {
4781                 if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
4782                         has_audio = true;
4783                         for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
4784                                 DRM_DEBUG_KMS("CEA audio format %d\n",
4785                                               (edid_ext[i + j] >> 3) & 0xf);
4786                         goto end;
4787                 }
4788         }
4789 end:
4790         return has_audio;
4791 }
4792 EXPORT_SYMBOL(drm_detect_monitor_audio);
4793
4794
4795 /**
4796  * drm_default_rgb_quant_range - default RGB quantization range
4797  * @mode: display mode
4798  *
4799  * Determine the default RGB quantization range for the mode,
4800  * as specified in CEA-861.
4801  *
4802  * Return: The default RGB quantization range for the mode
4803  */
4804 enum hdmi_quantization_range
4805 drm_default_rgb_quant_range(const struct drm_display_mode *mode)
4806 {
4807         /* All CEA modes other than VIC 1 use limited quantization range. */
4808         return drm_match_cea_mode(mode) > 1 ?
4809                 HDMI_QUANTIZATION_RANGE_LIMITED :
4810                 HDMI_QUANTIZATION_RANGE_FULL;
4811 }
4812 EXPORT_SYMBOL(drm_default_rgb_quant_range);
4813
4814 static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db)
4815 {
4816         struct drm_display_info *info = &connector->display_info;
4817
4818         DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", db[2]);
4819
4820         if (db[2] & EDID_CEA_VCDB_QS)
4821                 info->rgb_quant_range_selectable = true;
4822 }
4823
4824 static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
4825                                                const u8 *db)
4826 {
4827         u8 dc_mask;
4828         struct drm_hdmi_info *hdmi = &connector->display_info.hdmi;
4829
4830         dc_mask = db[7] & DRM_EDID_YCBCR420_DC_MASK;
4831         hdmi->y420_dc_modes = dc_mask;
4832 }
4833
4834 static void drm_parse_hdmi_forum_vsdb(struct drm_connector *connector,
4835                                  const u8 *hf_vsdb)
4836 {
4837         struct drm_display_info *display = &connector->display_info;
4838         struct drm_hdmi_info *hdmi = &display->hdmi;
4839
4840         display->has_hdmi_infoframe = true;
4841
4842         if (hf_vsdb[6] & 0x80) {
4843                 hdmi->scdc.supported = true;
4844                 if (hf_vsdb[6] & 0x40)
4845                         hdmi->scdc.read_request = true;
4846         }
4847
4848         /*
4849          * All HDMI 2.0 monitors must support scrambling at rates > 340 MHz.
4850          * And as per the spec, three factors confirm this:
4851          * * Availability of a HF-VSDB block in EDID (check)
4852          * * Non zero Max_TMDS_Char_Rate filed in HF-VSDB (let's check)
4853          * * SCDC support available (let's check)
4854          * Lets check it out.
4855          */
4856
4857         if (hf_vsdb[5]) {
4858                 /* max clock is 5000 KHz times block value */
4859                 u32 max_tmds_clock = hf_vsdb[5] * 5000;
4860                 struct drm_scdc *scdc = &hdmi->scdc;
4861
4862                 if (max_tmds_clock > 340000) {
4863                         display->max_tmds_clock = max_tmds_clock;
4864                         DRM_DEBUG_KMS("HF-VSDB: max TMDS clock %d kHz\n",
4865                                 display->max_tmds_clock);
4866                 }
4867
4868                 if (scdc->supported) {
4869                         scdc->scrambling.supported = true;
4870
4871                         /* Few sinks support scrambling for clocks < 340M */
4872                         if ((hf_vsdb[6] & 0x8))
4873                                 scdc->scrambling.low_rates = true;
4874                 }
4875         }
4876
4877         drm_parse_ycbcr420_deep_color_info(connector, hf_vsdb);
4878 }
4879
4880 static void drm_parse_hdmi_deep_color_info(struct drm_connector *connector,
4881                                            const u8 *hdmi)
4882 {
4883         struct drm_display_info *info = &connector->display_info;
4884         unsigned int dc_bpc = 0;
4885
4886         /* HDMI supports at least 8 bpc */
4887         info->bpc = 8;
4888
4889         if (cea_db_payload_len(hdmi) < 6)
4890                 return;
4891
4892         if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
4893                 dc_bpc = 10;
4894                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
4895                 DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
4896                           connector->name);
4897         }
4898
4899         if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
4900                 dc_bpc = 12;
4901                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
4902                 DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
4903                           connector->name);
4904         }
4905
4906         if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
4907                 dc_bpc = 16;
4908                 info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
4909                 DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
4910                           connector->name);
4911         }
4912
4913         if (dc_bpc == 0) {
4914                 DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
4915                           connector->name);
4916                 return;
4917         }
4918
4919         DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
4920                   connector->name, dc_bpc);
4921         info->bpc = dc_bpc;
4922
4923         /*
4924          * Deep color support mandates RGB444 support for all video
4925          * modes and forbids YCRCB422 support for all video modes per
4926          * HDMI 1.3 spec.
4927          */
4928         info->color_formats = DRM_COLOR_FORMAT_RGB444;
4929
4930         /* YCRCB444 is optional according to spec. */
4931         if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
4932                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
4933                 DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
4934                           connector->name);
4935         }
4936
4937         /*
4938          * Spec says that if any deep color mode is supported at all,
4939          * then deep color 36 bit must be supported.
4940          */
4941         if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
4942                 DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
4943                           connector->name);
4944         }
4945 }
4946
4947 static void
4948 drm_parse_hdmi_vsdb_video(struct drm_connector *connector, const u8 *db)
4949 {
4950         struct drm_display_info *info = &connector->display_info;
4951         u8 len = cea_db_payload_len(db);
4952
4953         info->is_hdmi = true;
4954
4955         if (len >= 6)
4956                 info->dvi_dual = db[6] & 1;
4957         if (len >= 7)
4958                 info->max_tmds_clock = db[7] * 5000;
4959
4960         DRM_DEBUG_KMS("HDMI: DVI dual %d, "
4961                       "max TMDS clock %d kHz\n",
4962                       info->dvi_dual,
4963                       info->max_tmds_clock);
4964
4965         drm_parse_hdmi_deep_color_info(connector, db);
4966 }
4967
4968 static void drm_parse_cea_ext(struct drm_connector *connector,
4969                               const struct edid *edid)
4970 {
4971         struct drm_display_info *info = &connector->display_info;
4972         const u8 *edid_ext;
4973         int i, start, end;
4974
4975         edid_ext = drm_find_cea_extension(edid);
4976         if (!edid_ext)
4977                 return;
4978
4979         info->cea_rev = edid_ext[1];
4980
4981         /* The existence of a CEA block should imply RGB support */
4982         info->color_formats = DRM_COLOR_FORMAT_RGB444;
4983         if (edid_ext[3] & EDID_CEA_YCRCB444)
4984                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
4985         if (edid_ext[3] & EDID_CEA_YCRCB422)
4986                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
4987
4988         if (cea_db_offsets(edid_ext, &start, &end))
4989                 return;
4990
4991         for_each_cea_db(edid_ext, i, start, end) {
4992                 const u8 *db = &edid_ext[i];
4993
4994                 if (cea_db_is_hdmi_vsdb(db))
4995                         drm_parse_hdmi_vsdb_video(connector, db);
4996                 if (cea_db_is_hdmi_forum_vsdb(db))
4997                         drm_parse_hdmi_forum_vsdb(connector, db);
4998                 if (cea_db_is_y420cmdb(db))
4999                         drm_parse_y420cmdb_bitmap(connector, db);
5000                 if (cea_db_is_vcdb(db))
5001                         drm_parse_vcdb(connector, db);
5002                 if (cea_db_is_hdmi_hdr_metadata_block(db))
5003                         drm_parse_hdr_metadata_block(connector, db);
5004         }
5005 }
5006
5007 static
5008 void get_monitor_range(struct detailed_timing *timing,
5009                        void *info_monitor_range)
5010 {
5011         struct drm_monitor_range_info *monitor_range = info_monitor_range;
5012         const struct detailed_non_pixel *data = &timing->data.other_data;
5013         const struct detailed_data_monitor_range *range = &data->data.range;
5014
5015         if (!is_display_descriptor((const u8 *)timing, EDID_DETAIL_MONITOR_RANGE))
5016                 return;
5017
5018         /*
5019          * Check for flag range limits only. If flag == 1 then
5020          * no additional timing information provided.
5021          * Default GTF, GTF Secondary curve and CVT are not
5022          * supported
5023          */
5024         if (range->flags != DRM_EDID_RANGE_LIMITS_ONLY_FLAG)
5025                 return;
5026
5027         monitor_range->min_vfreq = range->min_vfreq;
5028         monitor_range->max_vfreq = range->max_vfreq;
5029 }
5030
5031 static
5032 void drm_get_monitor_range(struct drm_connector *connector,
5033                            const struct edid *edid)
5034 {
5035         struct drm_display_info *info = &connector->display_info;
5036
5037         if (!version_greater(edid, 1, 1))
5038                 return;
5039
5040         drm_for_each_detailed_block((u8 *)edid, get_monitor_range,
5041                                     &info->monitor_range);
5042
5043         DRM_DEBUG_KMS("Supported Monitor Refresh rate range is %d Hz - %d Hz\n",
5044                       info->monitor_range.min_vfreq,
5045                       info->monitor_range.max_vfreq);
5046 }
5047
5048 /* A connector has no EDID information, so we've got no EDID to compute quirks from. Reset
5049  * all of the values which would have been set from EDID
5050  */
5051 void
5052 drm_reset_display_info(struct drm_connector *connector)
5053 {
5054         struct drm_display_info *info = &connector->display_info;
5055
5056         info->width_mm = 0;
5057         info->height_mm = 0;
5058
5059         info->bpc = 0;
5060         info->color_formats = 0;
5061         info->cea_rev = 0;
5062         info->max_tmds_clock = 0;
5063         info->dvi_dual = false;
5064         info->is_hdmi = false;
5065         info->has_hdmi_infoframe = false;
5066         info->rgb_quant_range_selectable = false;
5067         memset(&info->hdmi, 0, sizeof(info->hdmi));
5068
5069         info->non_desktop = 0;
5070         memset(&info->monitor_range, 0, sizeof(info->monitor_range));
5071 }
5072
5073 u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edid)
5074 {
5075         struct drm_display_info *info = &connector->display_info;
5076
5077         u32 quirks = edid_get_quirks(edid);
5078
5079         drm_reset_display_info(connector);
5080
5081         info->width_mm = edid->width_cm * 10;
5082         info->height_mm = edid->height_cm * 10;
5083
5084         info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
5085
5086         drm_get_monitor_range(connector, edid);
5087
5088         DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop);
5089
5090         if (edid->revision < 3)
5091                 return quirks;
5092
5093         if (!(edid->input & DRM_EDID_INPUT_DIGITAL))
5094                 return quirks;
5095
5096         drm_parse_cea_ext(connector, edid);
5097
5098         /*
5099          * Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
5100          *
5101          * For such displays, the DFP spec 1.0, section 3.10 "EDID support"
5102          * tells us to assume 8 bpc color depth if the EDID doesn't have
5103          * extensions which tell otherwise.
5104          */
5105         if (info->bpc == 0 && edid->revision == 3 &&
5106             edid->input & DRM_EDID_DIGITAL_DFP_1_X) {
5107                 info->bpc = 8;
5108                 DRM_DEBUG("%s: Assigning DFP sink color depth as %d bpc.\n",
5109                           connector->name, info->bpc);
5110         }
5111
5112         /* Only defined for 1.4 with digital displays */
5113         if (edid->revision < 4)
5114                 return quirks;
5115
5116         switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) {
5117         case DRM_EDID_DIGITAL_DEPTH_6:
5118                 info->bpc = 6;
5119                 break;
5120         case DRM_EDID_DIGITAL_DEPTH_8:
5121                 info->bpc = 8;
5122                 break;
5123         case DRM_EDID_DIGITAL_DEPTH_10:
5124                 info->bpc = 10;
5125                 break;
5126         case DRM_EDID_DIGITAL_DEPTH_12:
5127                 info->bpc = 12;
5128                 break;
5129         case DRM_EDID_DIGITAL_DEPTH_14:
5130                 info->bpc = 14;
5131                 break;
5132         case DRM_EDID_DIGITAL_DEPTH_16:
5133                 info->bpc = 16;
5134                 break;
5135         case DRM_EDID_DIGITAL_DEPTH_UNDEF:
5136         default:
5137                 info->bpc = 0;
5138                 break;
5139         }
5140
5141         DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
5142                           connector->name, info->bpc);
5143
5144         info->color_formats |= DRM_COLOR_FORMAT_RGB444;
5145         if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
5146                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
5147         if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB422)
5148                 info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
5149         return quirks;
5150 }
5151
5152 static int validate_displayid(u8 *displayid, int length, int idx)
5153 {
5154         int i, dispid_length;
5155         u8 csum = 0;
5156         struct displayid_hdr *base;
5157
5158         base = (struct displayid_hdr *)&displayid[idx];
5159
5160         DRM_DEBUG_KMS("base revision 0x%x, length %d, %d %d\n",
5161                       base->rev, base->bytes, base->prod_id, base->ext_count);
5162
5163         /* +1 for DispID checksum */
5164         dispid_length = sizeof(*base) + base->bytes + 1;
5165         if (dispid_length > length - idx)
5166                 return -EINVAL;
5167
5168         for (i = 0; i < dispid_length; i++)
5169                 csum += displayid[idx + i];
5170         if (csum) {
5171                 DRM_NOTE("DisplayID checksum invalid, remainder is %d\n", csum);
5172                 return -EINVAL;
5173         }
5174
5175         return 0;
5176 }
5177
5178 static struct drm_display_mode *drm_mode_displayid_detailed(struct drm_device *dev,
5179                                                             struct displayid_detailed_timings_1 *timings)
5180 {
5181         struct drm_display_mode *mode;
5182         unsigned pixel_clock = (timings->pixel_clock[0] |
5183                                 (timings->pixel_clock[1] << 8) |
5184                                 (timings->pixel_clock[2] << 16)) + 1;
5185         unsigned hactive = (timings->hactive[0] | timings->hactive[1] << 8) + 1;
5186         unsigned hblank = (timings->hblank[0] | timings->hblank[1] << 8) + 1;
5187         unsigned hsync = (timings->hsync[0] | (timings->hsync[1] & 0x7f) << 8) + 1;
5188         unsigned hsync_width = (timings->hsw[0] | timings->hsw[1] << 8) + 1;
5189         unsigned vactive = (timings->vactive[0] | timings->vactive[1] << 8) + 1;
5190         unsigned vblank = (timings->vblank[0] | timings->vblank[1] << 8) + 1;
5191         unsigned vsync = (timings->vsync[0] | (timings->vsync[1] & 0x7f) << 8) + 1;
5192         unsigned vsync_width = (timings->vsw[0] | timings->vsw[1] << 8) + 1;
5193         bool hsync_positive = (timings->hsync[1] >> 7) & 0x1;
5194         bool vsync_positive = (timings->vsync[1] >> 7) & 0x1;
5195
5196         mode = drm_mode_create(dev);
5197         if (!mode)
5198                 return NULL;
5199
5200         mode->clock = pixel_clock * 10;
5201         mode->hdisplay = hactive;
5202         mode->hsync_start = mode->hdisplay + hsync;
5203         mode->hsync_end = mode->hsync_start + hsync_width;
5204         mode->htotal = mode->hdisplay + hblank;
5205
5206         mode->vdisplay = vactive;
5207         mode->vsync_start = mode->vdisplay + vsync;
5208         mode->vsync_end = mode->vsync_start + vsync_width;
5209         mode->vtotal = mode->vdisplay + vblank;
5210
5211         mode->flags = 0;
5212         mode->flags |= hsync_positive ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
5213         mode->flags |= vsync_positive ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
5214         mode->type = DRM_MODE_TYPE_DRIVER;
5215
5216         if (timings->flags & 0x80)
5217                 mode->type |= DRM_MODE_TYPE_PREFERRED;
5218         drm_mode_set_name(mode);
5219
5220         return mode;
5221 }
5222
5223 static int add_displayid_detailed_1_modes(struct drm_connector *connector,
5224                                           struct displayid_block *block)
5225 {
5226         struct displayid_detailed_timing_block *det = (struct displayid_detailed_timing_block *)block;
5227         int i;
5228         int num_timings;
5229         struct drm_display_mode *newmode;
5230         int num_modes = 0;
5231         /* blocks must be multiple of 20 bytes length */
5232         if (block->num_bytes % 20)
5233                 return 0;
5234
5235         num_timings = block->num_bytes / 20;
5236         for (i = 0; i < num_timings; i++) {
5237                 struct displayid_detailed_timings_1 *timings = &det->timings[i];
5238
5239                 newmode = drm_mode_displayid_detailed(connector->dev, timings);
5240                 if (!newmode)
5241                         continue;
5242
5243                 drm_mode_probed_add(connector, newmode);
5244                 num_modes++;
5245         }
5246         return num_modes;
5247 }
5248
5249 static int add_displayid_detailed_modes(struct drm_connector *connector,
5250                                         struct edid *edid)
5251 {
5252         u8 *displayid;
5253         int length, idx;
5254         struct displayid_block *block;
5255         int num_modes = 0;
5256         int ext_index = 0;
5257
5258         for (;;) {
5259                 displayid = drm_find_displayid_extension(edid, &length, &idx,
5260                                                          &ext_index);
5261                 if (!displayid)
5262                         break;
5263
5264                 idx += sizeof(struct displayid_hdr);
5265                 for_each_displayid_db(displayid, block, idx, length) {
5266                         switch (block->tag) {
5267                         case DATA_BLOCK_TYPE_1_DETAILED_TIMING:
5268                                 num_modes += add_displayid_detailed_1_modes(connector, block);
5269                                 break;
5270                         }
5271                 }
5272         }
5273
5274         return num_modes;
5275 }
5276
5277 /**
5278  * drm_add_edid_modes - add modes from EDID data, if available
5279  * @connector: connector we're probing
5280  * @edid: EDID data
5281  *
5282  * Add the specified modes to the connector's mode list. Also fills out the
5283  * &drm_display_info structure and ELD in @connector with any information which
5284  * can be derived from the edid.
5285  *
5286  * Return: The number of modes added or 0 if we couldn't find any.
5287  */
5288 int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
5289 {
5290         int num_modes = 0;
5291         u32 quirks;
5292
5293         if (edid == NULL) {
5294                 clear_eld(connector);
5295                 return 0;
5296         }
5297         if (!drm_edid_is_valid(edid)) {
5298                 clear_eld(connector);
5299                 drm_warn(connector->dev, "%s: EDID invalid.\n",
5300                          connector->name);
5301                 return 0;
5302         }
5303
5304         drm_edid_to_eld(connector, edid);
5305
5306         /*
5307          * CEA-861-F adds ycbcr capability map block, for HDMI 2.0 sinks.
5308          * To avoid multiple parsing of same block, lets parse that map
5309          * from sink info, before parsing CEA modes.
5310          */
5311         quirks = drm_add_display_info(connector, edid);
5312
5313         /*
5314          * EDID spec says modes should be preferred in this order:
5315          * - preferred detailed mode
5316          * - other detailed modes from base block
5317          * - detailed modes from extension blocks
5318          * - CVT 3-byte code modes
5319          * - standard timing codes
5320          * - established timing codes
5321          * - modes inferred from GTF or CVT range information
5322          *
5323          * We get this pretty much right.
5324          *
5325          * XXX order for additional mode types in extension blocks?
5326          */
5327         num_modes += add_detailed_modes(connector, edid, quirks);
5328         num_modes += add_cvt_modes(connector, edid);
5329         num_modes += add_standard_modes(connector, edid);
5330         num_modes += add_established_modes(connector, edid);
5331         num_modes += add_cea_modes(connector, edid);
5332         num_modes += add_alternate_cea_modes(connector, edid);
5333         num_modes += add_displayid_detailed_modes(connector, edid);
5334         if (edid->features & DRM_EDID_FEATURE_DEFAULT_GTF)
5335                 num_modes += add_inferred_modes(connector, edid);
5336
5337         if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
5338                 edid_fixup_preferred(connector, quirks);
5339
5340         if (quirks & EDID_QUIRK_FORCE_6BPC)
5341                 connector->display_info.bpc = 6;
5342
5343         if (quirks & EDID_QUIRK_FORCE_8BPC)
5344                 connector->display_info.bpc = 8;
5345
5346         if (quirks & EDID_QUIRK_FORCE_10BPC)
5347                 connector->display_info.bpc = 10;
5348
5349         if (quirks & EDID_QUIRK_FORCE_12BPC)
5350                 connector->display_info.bpc = 12;
5351
5352         return num_modes;
5353 }
5354 EXPORT_SYMBOL(drm_add_edid_modes);
5355
5356 /**
5357  * drm_add_modes_noedid - add modes for the connectors without EDID
5358  * @connector: connector we're probing
5359  * @hdisplay: the horizontal display limit
5360  * @vdisplay: the vertical display limit
5361  *
5362  * Add the specified modes to the connector's mode list. Only when the
5363  * hdisplay/vdisplay is not beyond the given limit, it will be added.
5364  *
5365  * Return: The number of modes added or 0 if we couldn't find any.
5366  */
5367 int drm_add_modes_noedid(struct drm_connector *connector,
5368                         int hdisplay, int vdisplay)
5369 {
5370         int i, count, num_modes = 0;
5371         struct drm_display_mode *mode;
5372         struct drm_device *dev = connector->dev;
5373
5374         count = ARRAY_SIZE(drm_dmt_modes);
5375         if (hdisplay < 0)
5376                 hdisplay = 0;
5377         if (vdisplay < 0)
5378                 vdisplay = 0;
5379
5380         for (i = 0; i < count; i++) {
5381                 const struct drm_display_mode *ptr = &drm_dmt_modes[i];
5382
5383                 if (hdisplay && vdisplay) {
5384                         /*
5385                          * Only when two are valid, they will be used to check
5386                          * whether the mode should be added to the mode list of
5387                          * the connector.
5388                          */
5389                         if (ptr->hdisplay > hdisplay ||
5390                                         ptr->vdisplay > vdisplay)
5391                                 continue;
5392                 }
5393                 if (drm_mode_vrefresh(ptr) > 61)
5394                         continue;
5395                 mode = drm_mode_duplicate(dev, ptr);
5396                 if (mode) {
5397                         drm_mode_probed_add(connector, mode);
5398                         num_modes++;
5399                 }
5400         }
5401         return num_modes;
5402 }
5403 EXPORT_SYMBOL(drm_add_modes_noedid);
5404
5405 /**
5406  * drm_set_preferred_mode - Sets the preferred mode of a connector
5407  * @connector: connector whose mode list should be processed
5408  * @hpref: horizontal resolution of preferred mode
5409  * @vpref: vertical resolution of preferred mode
5410  *
5411  * Marks a mode as preferred if it matches the resolution specified by @hpref
5412  * and @vpref.
5413  */
5414 void drm_set_preferred_mode(struct drm_connector *connector,
5415                            int hpref, int vpref)
5416 {
5417         struct drm_display_mode *mode;
5418
5419         list_for_each_entry(mode, &connector->probed_modes, head) {
5420                 if (mode->hdisplay == hpref &&
5421                     mode->vdisplay == vpref)
5422                         mode->type |= DRM_MODE_TYPE_PREFERRED;
5423         }
5424 }
5425 EXPORT_SYMBOL(drm_set_preferred_mode);
5426
5427 static bool is_hdmi2_sink(const struct drm_connector *connector)
5428 {
5429         /*
5430          * FIXME: sil-sii8620 doesn't have a connector around when
5431          * we need one, so we have to be prepared for a NULL connector.
5432          */
5433         if (!connector)
5434                 return true;
5435
5436         return connector->display_info.hdmi.scdc.supported ||
5437                 connector->display_info.color_formats & DRM_COLOR_FORMAT_YCRCB420;
5438 }
5439
5440 static inline bool is_eotf_supported(u8 output_eotf, u8 sink_eotf)
5441 {
5442         return sink_eotf & BIT(output_eotf);
5443 }
5444
5445 /**
5446  * drm_hdmi_infoframe_set_hdr_metadata() - fill an HDMI DRM infoframe with
5447  *                                         HDR metadata from userspace
5448  * @frame: HDMI DRM infoframe
5449  * @conn_state: Connector state containing HDR metadata
5450  *
5451  * Return: 0 on success or a negative error code on failure.
5452  */
5453 int
5454 drm_hdmi_infoframe_set_hdr_metadata(struct hdmi_drm_infoframe *frame,
5455                                     const struct drm_connector_state *conn_state)
5456 {
5457         struct drm_connector *connector;
5458         struct hdr_output_metadata *hdr_metadata;
5459         int err;
5460
5461         if (!frame || !conn_state)
5462                 return -EINVAL;
5463
5464         connector = conn_state->connector;
5465
5466         if (!conn_state->hdr_output_metadata)
5467                 return -EINVAL;
5468
5469         hdr_metadata = conn_state->hdr_output_metadata->data;
5470
5471         if (!hdr_metadata || !connector)
5472                 return -EINVAL;
5473
5474         /* Sink EOTF is Bit map while infoframe is absolute values */
5475         if (!is_eotf_supported(hdr_metadata->hdmi_metadata_type1.eotf,
5476             connector->hdr_sink_metadata.hdmi_type1.eotf)) {
5477                 DRM_DEBUG_KMS("EOTF Not Supported\n");
5478                 return -EINVAL;
5479         }
5480
5481         err = hdmi_drm_infoframe_init(frame);
5482         if (err < 0)
5483                 return err;
5484
5485         frame->eotf = hdr_metadata->hdmi_metadata_type1.eotf;
5486         frame->metadata_type = hdr_metadata->hdmi_metadata_type1.metadata_type;
5487
5488         BUILD_BUG_ON(sizeof(frame->display_primaries) !=
5489                      sizeof(hdr_metadata->hdmi_metadata_type1.display_primaries));
5490         BUILD_BUG_ON(sizeof(frame->white_point) !=
5491                      sizeof(hdr_metadata->hdmi_metadata_type1.white_point));
5492
5493         memcpy(&frame->display_primaries,
5494                &hdr_metadata->hdmi_metadata_type1.display_primaries,
5495                sizeof(frame->display_primaries));
5496
5497         memcpy(&frame->white_point,
5498                &hdr_metadata->hdmi_metadata_type1.white_point,
5499                sizeof(frame->white_point));
5500
5501         frame->max_display_mastering_luminance =
5502                 hdr_metadata->hdmi_metadata_type1.max_display_mastering_luminance;
5503         frame->min_display_mastering_luminance =
5504                 hdr_metadata->hdmi_metadata_type1.min_display_mastering_luminance;
5505         frame->max_fall = hdr_metadata->hdmi_metadata_type1.max_fall;
5506         frame->max_cll = hdr_metadata->hdmi_metadata_type1.max_cll;
5507
5508         return 0;
5509 }
5510 EXPORT_SYMBOL(drm_hdmi_infoframe_set_hdr_metadata);
5511
5512 static u8 drm_mode_hdmi_vic(const struct drm_connector *connector,
5513                             const struct drm_display_mode *mode)
5514 {
5515         bool has_hdmi_infoframe = connector ?
5516                 connector->display_info.has_hdmi_infoframe : false;
5517
5518         if (!has_hdmi_infoframe)
5519                 return 0;
5520
5521         /* No HDMI VIC when signalling 3D video format */
5522         if (mode->flags & DRM_MODE_FLAG_3D_MASK)
5523                 return 0;
5524
5525         return drm_match_hdmi_mode(mode);
5526 }
5527
5528 static u8 drm_mode_cea_vic(const struct drm_connector *connector,
5529                            const struct drm_display_mode *mode)
5530 {
5531         u8 vic;
5532
5533         /*
5534          * HDMI spec says if a mode is found in HDMI 1.4b 4K modes
5535          * we should send its VIC in vendor infoframes, else send the
5536          * VIC in AVI infoframes. Lets check if this mode is present in
5537          * HDMI 1.4b 4K modes
5538          */
5539         if (drm_mode_hdmi_vic(connector, mode))
5540                 return 0;
5541
5542         vic = drm_match_cea_mode(mode);
5543
5544         /*
5545          * HDMI 1.4 VIC range: 1 <= VIC <= 64 (CEA-861-D) but
5546          * HDMI 2.0 VIC range: 1 <= VIC <= 107 (CEA-861-F). So we
5547          * have to make sure we dont break HDMI 1.4 sinks.
5548          */
5549         if (!is_hdmi2_sink(connector) && vic > 64)
5550                 return 0;
5551
5552         return vic;
5553 }
5554
5555 /**
5556  * drm_hdmi_avi_infoframe_from_display_mode() - fill an HDMI AVI infoframe with
5557  *                                              data from a DRM display mode
5558  * @frame: HDMI AVI infoframe
5559  * @connector: the connector
5560  * @mode: DRM display mode
5561  *
5562  * Return: 0 on success or a negative error code on failure.
5563  */
5564 int
5565 drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
5566                                          const struct drm_connector *connector,
5567                                          const struct drm_display_mode *mode)
5568 {
5569         enum hdmi_picture_aspect picture_aspect;
5570         u8 vic, hdmi_vic;
5571
5572         if (!frame || !mode)
5573                 return -EINVAL;
5574
5575         hdmi_avi_infoframe_init(frame);
5576
5577         if (mode->flags & DRM_MODE_FLAG_DBLCLK)
5578                 frame->pixel_repeat = 1;
5579
5580         vic = drm_mode_cea_vic(connector, mode);
5581         hdmi_vic = drm_mode_hdmi_vic(connector, mode);
5582
5583         frame->picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5584
5585         /*
5586          * As some drivers don't support atomic, we can't use connector state.
5587          * So just initialize the frame with default values, just the same way
5588          * as it's done with other properties here.
5589          */
5590         frame->content_type = HDMI_CONTENT_TYPE_GRAPHICS;
5591         frame->itc = 0;
5592
5593         /*
5594          * Populate picture aspect ratio from either
5595          * user input (if specified) or from the CEA/HDMI mode lists.
5596          */
5597         picture_aspect = mode->picture_aspect_ratio;
5598         if (picture_aspect == HDMI_PICTURE_ASPECT_NONE) {
5599                 if (vic)
5600                         picture_aspect = drm_get_cea_aspect_ratio(vic);
5601                 else if (hdmi_vic)
5602                         picture_aspect = drm_get_hdmi_aspect_ratio(hdmi_vic);
5603         }
5604
5605         /*
5606          * The infoframe can't convey anything but none, 4:3
5607          * and 16:9, so if the user has asked for anything else
5608          * we can only satisfy it by specifying the right VIC.
5609          */
5610         if (picture_aspect > HDMI_PICTURE_ASPECT_16_9) {
5611                 if (vic) {
5612                         if (picture_aspect != drm_get_cea_aspect_ratio(vic))
5613                                 return -EINVAL;
5614                 } else if (hdmi_vic) {
5615                         if (picture_aspect != drm_get_hdmi_aspect_ratio(hdmi_vic))
5616                                 return -EINVAL;
5617                 } else {
5618                         return -EINVAL;
5619                 }
5620
5621                 picture_aspect = HDMI_PICTURE_ASPECT_NONE;
5622         }
5623
5624         frame->video_code = vic;
5625         frame->picture_aspect = picture_aspect;
5626         frame->active_aspect = HDMI_ACTIVE_ASPECT_PICTURE;
5627         frame->scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
5628
5629         return 0;
5630 }
5631 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
5632
5633 /* HDMI Colorspace Spec Definitions */
5634 #define FULL_COLORIMETRY_MASK           0x1FF
5635 #define NORMAL_COLORIMETRY_MASK         0x3
5636 #define EXTENDED_COLORIMETRY_MASK       0x7
5637 #define EXTENDED_ACE_COLORIMETRY_MASK   0xF
5638
5639 #define C(x) ((x) << 0)
5640 #define EC(x) ((x) << 2)
5641 #define ACE(x) ((x) << 5)
5642
5643 #define HDMI_COLORIMETRY_NO_DATA                0x0
5644 #define HDMI_COLORIMETRY_SMPTE_170M_YCC         (C(1) | EC(0) | ACE(0))
5645 #define HDMI_COLORIMETRY_BT709_YCC              (C(2) | EC(0) | ACE(0))
5646 #define HDMI_COLORIMETRY_XVYCC_601              (C(3) | EC(0) | ACE(0))
5647 #define HDMI_COLORIMETRY_XVYCC_709              (C(3) | EC(1) | ACE(0))
5648 #define HDMI_COLORIMETRY_SYCC_601               (C(3) | EC(2) | ACE(0))
5649 #define HDMI_COLORIMETRY_OPYCC_601              (C(3) | EC(3) | ACE(0))
5650 #define HDMI_COLORIMETRY_OPRGB                  (C(3) | EC(4) | ACE(0))
5651 #define HDMI_COLORIMETRY_BT2020_CYCC            (C(3) | EC(5) | ACE(0))
5652 #define HDMI_COLORIMETRY_BT2020_RGB             (C(3) | EC(6) | ACE(0))
5653 #define HDMI_COLORIMETRY_BT2020_YCC             (C(3) | EC(6) | ACE(0))
5654 #define HDMI_COLORIMETRY_DCI_P3_RGB_D65         (C(3) | EC(7) | ACE(0))
5655 #define HDMI_COLORIMETRY_DCI_P3_RGB_THEATER     (C(3) | EC(7) | ACE(1))
5656
5657 static const u32 hdmi_colorimetry_val[] = {
5658         [DRM_MODE_COLORIMETRY_NO_DATA] = HDMI_COLORIMETRY_NO_DATA,
5659         [DRM_MODE_COLORIMETRY_SMPTE_170M_YCC] = HDMI_COLORIMETRY_SMPTE_170M_YCC,
5660         [DRM_MODE_COLORIMETRY_BT709_YCC] = HDMI_COLORIMETRY_BT709_YCC,
5661         [DRM_MODE_COLORIMETRY_XVYCC_601] = HDMI_COLORIMETRY_XVYCC_601,
5662         [DRM_MODE_COLORIMETRY_XVYCC_709] = HDMI_COLORIMETRY_XVYCC_709,
5663         [DRM_MODE_COLORIMETRY_SYCC_601] = HDMI_COLORIMETRY_SYCC_601,
5664         [DRM_MODE_COLORIMETRY_OPYCC_601] = HDMI_COLORIMETRY_OPYCC_601,
5665         [DRM_MODE_COLORIMETRY_OPRGB] = HDMI_COLORIMETRY_OPRGB,
5666         [DRM_MODE_COLORIMETRY_BT2020_CYCC] = HDMI_COLORIMETRY_BT2020_CYCC,
5667         [DRM_MODE_COLORIMETRY_BT2020_RGB] = HDMI_COLORIMETRY_BT2020_RGB,
5668         [DRM_MODE_COLORIMETRY_BT2020_YCC] = HDMI_COLORIMETRY_BT2020_YCC,
5669 };
5670
5671 #undef C
5672 #undef EC
5673 #undef ACE
5674
5675 /**
5676  * drm_hdmi_avi_infoframe_colorspace() - fill the HDMI AVI infoframe
5677  *                                       colorspace information
5678  * @frame: HDMI AVI infoframe
5679  * @conn_state: connector state
5680  */
5681 void
5682 drm_hdmi_avi_infoframe_colorspace(struct hdmi_avi_infoframe *frame,
5683                                   const struct drm_connector_state *conn_state)
5684 {
5685         u32 colorimetry_val;
5686         u32 colorimetry_index = conn_state->colorspace & FULL_COLORIMETRY_MASK;
5687
5688         if (colorimetry_index >= ARRAY_SIZE(hdmi_colorimetry_val))
5689                 colorimetry_val = HDMI_COLORIMETRY_NO_DATA;
5690         else
5691                 colorimetry_val = hdmi_colorimetry_val[colorimetry_index];
5692
5693         frame->colorimetry = colorimetry_val & NORMAL_COLORIMETRY_MASK;
5694         /*
5695          * ToDo: Extend it for ACE formats as well. Modify the infoframe
5696          * structure and extend it in drivers/video/hdmi
5697          */
5698         frame->extended_colorimetry = (colorimetry_val >> 2) &
5699                                         EXTENDED_COLORIMETRY_MASK;
5700 }
5701 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_colorspace);
5702
5703 /**
5704  * drm_hdmi_avi_infoframe_quant_range() - fill the HDMI AVI infoframe
5705  *                                        quantization range information
5706  * @frame: HDMI AVI infoframe
5707  * @connector: the connector
5708  * @mode: DRM display mode
5709  * @rgb_quant_range: RGB quantization range (Q)
5710  */
5711 void
5712 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
5713                                    const struct drm_connector *connector,
5714                                    const struct drm_display_mode *mode,
5715                                    enum hdmi_quantization_range rgb_quant_range)
5716 {
5717         const struct drm_display_info *info = &connector->display_info;
5718
5719         /*
5720          * CEA-861:
5721          * "A Source shall not send a non-zero Q value that does not correspond
5722          *  to the default RGB Quantization Range for the transmitted Picture
5723          *  unless the Sink indicates support for the Q bit in a Video
5724          *  Capabilities Data Block."
5725          *
5726          * HDMI 2.0 recommends sending non-zero Q when it does match the
5727          * default RGB quantization range for the mode, even when QS=0.
5728          */
5729         if (info->rgb_quant_range_selectable ||
5730             rgb_quant_range == drm_default_rgb_quant_range(mode))
5731                 frame->quantization_range = rgb_quant_range;
5732         else
5733                 frame->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
5734
5735         /*
5736          * CEA-861-F:
5737          * "When transmitting any RGB colorimetry, the Source should set the
5738          *  YQ-field to match the RGB Quantization Range being transmitted
5739          *  (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
5740          *  set YQ=1) and the Sink shall ignore the YQ-field."
5741          *
5742          * Unfortunate certain sinks (eg. VIZ Model 67/E261VA) get confused
5743          * by non-zero YQ when receiving RGB. There doesn't seem to be any
5744          * good way to tell which version of CEA-861 the sink supports, so
5745          * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
5746          * on on CEA-861-F.
5747          */
5748         if (!is_hdmi2_sink(connector) ||
5749             rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
5750                 frame->ycc_quantization_range =
5751                         HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
5752         else
5753                 frame->ycc_quantization_range =
5754                         HDMI_YCC_QUANTIZATION_RANGE_FULL;
5755 }
5756 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_quant_range);
5757
5758 /**
5759  * drm_hdmi_avi_infoframe_bars() - fill the HDMI AVI infoframe
5760  *                                 bar information
5761  * @frame: HDMI AVI infoframe
5762  * @conn_state: connector state
5763  */
5764 void
5765 drm_hdmi_avi_infoframe_bars(struct hdmi_avi_infoframe *frame,
5766                             const struct drm_connector_state *conn_state)
5767 {
5768         frame->right_bar = conn_state->tv.margins.right;
5769         frame->left_bar = conn_state->tv.margins.left;
5770         frame->top_bar = conn_state->tv.margins.top;
5771         frame->bottom_bar = conn_state->tv.margins.bottom;
5772 }
5773 EXPORT_SYMBOL(drm_hdmi_avi_infoframe_bars);
5774
5775 static enum hdmi_3d_structure
5776 s3d_structure_from_display_mode(const struct drm_display_mode *mode)
5777 {
5778         u32 layout = mode->flags & DRM_MODE_FLAG_3D_MASK;
5779
5780         switch (layout) {
5781         case DRM_MODE_FLAG_3D_FRAME_PACKING:
5782                 return HDMI_3D_STRUCTURE_FRAME_PACKING;
5783         case DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE:
5784                 return HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE;
5785         case DRM_MODE_FLAG_3D_LINE_ALTERNATIVE:
5786                 return HDMI_3D_STRUCTURE_LINE_ALTERNATIVE;
5787         case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL:
5788                 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL;
5789         case DRM_MODE_FLAG_3D_L_DEPTH:
5790                 return HDMI_3D_STRUCTURE_L_DEPTH;
5791         case DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH:
5792                 return HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH;
5793         case DRM_MODE_FLAG_3D_TOP_AND_BOTTOM:
5794                 return HDMI_3D_STRUCTURE_TOP_AND_BOTTOM;
5795         case DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF:
5796                 return HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF;
5797         default:
5798                 return HDMI_3D_STRUCTURE_INVALID;
5799         }
5800 }
5801
5802 /**
5803  * drm_hdmi_vendor_infoframe_from_display_mode() - fill an HDMI infoframe with
5804  * data from a DRM display mode
5805  * @frame: HDMI vendor infoframe
5806  * @connector: the connector
5807  * @mode: DRM display mode
5808  *
5809  * Note that there's is a need to send HDMI vendor infoframes only when using a
5810  * 4k or stereoscopic 3D mode. So when giving any other mode as input this
5811  * function will return -EINVAL, error that can be safely ignored.
5812  *
5813  * Return: 0 on success or a negative error code on failure.
5814  */
5815 int
5816 drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame,
5817                                             const struct drm_connector *connector,
5818                                             const struct drm_display_mode *mode)
5819 {
5820         /*
5821          * FIXME: sil-sii8620 doesn't have a connector around when
5822          * we need one, so we have to be prepared for a NULL connector.
5823          */
5824         bool has_hdmi_infoframe = connector ?
5825                 connector->display_info.has_hdmi_infoframe : false;
5826         int err;
5827
5828         if (!frame || !mode)
5829                 return -EINVAL;
5830
5831         if (!has_hdmi_infoframe)
5832                 return -EINVAL;
5833
5834         err = hdmi_vendor_infoframe_init(frame);
5835         if (err < 0)
5836                 return err;
5837
5838         /*
5839          * Even if it's not absolutely necessary to send the infoframe
5840          * (ie.vic==0 and s3d_struct==0) we will still send it if we
5841          * know that the sink can handle it. This is based on a
5842          * suggestion in HDMI 2.0 Appendix F. Apparently some sinks
5843          * have trouble realizing that they shuld switch from 3D to 2D
5844          * mode if the source simply stops sending the infoframe when
5845          * it wants to switch from 3D to 2D.
5846          */
5847         frame->vic = drm_mode_hdmi_vic(connector, mode);
5848         frame->s3d_struct = s3d_structure_from_display_mode(mode);
5849
5850         return 0;
5851 }
5852 EXPORT_SYMBOL(drm_hdmi_vendor_infoframe_from_display_mode);
5853
5854 static void drm_parse_tiled_block(struct drm_connector *connector,
5855                                   const struct displayid_block *block)
5856 {
5857         const struct displayid_tiled_block *tile = (struct displayid_tiled_block *)block;
5858         u16 w, h;
5859         u8 tile_v_loc, tile_h_loc;
5860         u8 num_v_tile, num_h_tile;
5861         struct drm_tile_group *tg;
5862
5863         w = tile->tile_size[0] | tile->tile_size[1] << 8;
5864         h = tile->tile_size[2] | tile->tile_size[3] << 8;
5865
5866         num_v_tile = (tile->topo[0] & 0xf) | (tile->topo[2] & 0x30);
5867         num_h_tile = (tile->topo[0] >> 4) | ((tile->topo[2] >> 2) & 0x30);
5868         tile_v_loc = (tile->topo[1] & 0xf) | ((tile->topo[2] & 0x3) << 4);
5869         tile_h_loc = (tile->topo[1] >> 4) | (((tile->topo[2] >> 2) & 0x3) << 4);
5870
5871         connector->has_tile = true;
5872         if (tile->tile_cap & 0x80)
5873                 connector->tile_is_single_monitor = true;
5874
5875         connector->num_h_tile = num_h_tile + 1;
5876         connector->num_v_tile = num_v_tile + 1;
5877         connector->tile_h_loc = tile_h_loc;
5878         connector->tile_v_loc = tile_v_loc;
5879         connector->tile_h_size = w + 1;
5880         connector->tile_v_size = h + 1;
5881
5882         DRM_DEBUG_KMS("tile cap 0x%x\n", tile->tile_cap);
5883         DRM_DEBUG_KMS("tile_size %d x %d\n", w + 1, h + 1);
5884         DRM_DEBUG_KMS("topo num tiles %dx%d, location %dx%d\n",
5885                       num_h_tile + 1, num_v_tile + 1, tile_h_loc, tile_v_loc);
5886         DRM_DEBUG_KMS("vend %c%c%c\n", tile->topology_id[0], tile->topology_id[1], tile->topology_id[2]);
5887
5888         tg = drm_mode_get_tile_group(connector->dev, tile->topology_id);
5889         if (!tg)
5890                 tg = drm_mode_create_tile_group(connector->dev, tile->topology_id);
5891         if (!tg)
5892                 return;
5893
5894         if (connector->tile_group != tg) {
5895                 /* if we haven't got a pointer,
5896                    take the reference, drop ref to old tile group */
5897                 if (connector->tile_group)
5898                         drm_mode_put_tile_group(connector->dev, connector->tile_group);
5899                 connector->tile_group = tg;
5900         } else {
5901                 /* if same tile group, then release the ref we just took. */
5902                 drm_mode_put_tile_group(connector->dev, tg);
5903         }
5904 }
5905
5906 static void drm_displayid_parse_tiled(struct drm_connector *connector,
5907                                       const u8 *displayid, int length, int idx)
5908 {
5909         const struct displayid_block *block;
5910
5911         idx += sizeof(struct displayid_hdr);
5912         for_each_displayid_db(displayid, block, idx, length) {
5913                 DRM_DEBUG_KMS("block id 0x%x, rev %d, len %d\n",
5914                               block->tag, block->rev, block->num_bytes);
5915
5916                 switch (block->tag) {
5917                 case DATA_BLOCK_TILED_DISPLAY:
5918                         drm_parse_tiled_block(connector, block);
5919                         break;
5920                 default:
5921                         DRM_DEBUG_KMS("found DisplayID tag 0x%x, unhandled\n", block->tag);
5922                         break;
5923                 }
5924         }
5925 }
5926
5927 void drm_update_tile_info(struct drm_connector *connector,
5928                           const struct edid *edid)
5929 {
5930         const void *displayid = NULL;
5931         int ext_index = 0;
5932         int length, idx;
5933
5934         connector->has_tile = false;
5935         for (;;) {
5936                 displayid = drm_find_displayid_extension(edid, &length, &idx,
5937                                                          &ext_index);
5938                 if (!displayid)
5939                         break;
5940
5941                 drm_displayid_parse_tiled(connector, displayid, length, idx);
5942         }
5943
5944         if (!connector->has_tile && connector->tile_group) {
5945                 drm_mode_put_tile_group(connector->dev, connector->tile_group);
5946                 connector->tile_group = NULL;
5947         }
5948 }