Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
[linux-2.6-microblaze.git] / drivers / pinctrl / pinctrl-ocelot.c
1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /*
3  * Microsemi SoCs pinctrl driver
4  *
5  * Author: <alexandre.belloni@free-electrons.com>
6  * License: Dual MIT/GPL
7  * Copyright (c) 2017 Microsemi Corporation
8  */
9
10 #include <linux/gpio/driver.h>
11 #include <linux/interrupt.h>
12 #include <linux/io.h>
13 #include <linux/of_device.h>
14 #include <linux/of_irq.h>
15 #include <linux/of_platform.h>
16 #include <linux/pinctrl/pinctrl.h>
17 #include <linux/pinctrl/pinmux.h>
18 #include <linux/pinctrl/pinconf.h>
19 #include <linux/pinctrl/pinconf-generic.h>
20 #include <linux/platform_device.h>
21 #include <linux/regmap.h>
22 #include <linux/slab.h>
23
24 #include "core.h"
25 #include "pinconf.h"
26 #include "pinmux.h"
27
28 #define ocelot_clrsetbits(addr, clear, set) \
29         writel((readl(addr) & ~(clear)) | (set), (addr))
30
31 /* PINCONFIG bits (sparx5 only) */
32 enum {
33         PINCONF_BIAS,
34         PINCONF_SCHMITT,
35         PINCONF_DRIVE_STRENGTH,
36 };
37
38 #define BIAS_PD_BIT BIT(4)
39 #define BIAS_PU_BIT BIT(3)
40 #define BIAS_BITS   (BIAS_PD_BIT|BIAS_PU_BIT)
41 #define SCHMITT_BIT BIT(2)
42 #define DRIVE_BITS  GENMASK(1, 0)
43
44 /* GPIO standard registers */
45 #define OCELOT_GPIO_OUT_SET     0x0
46 #define OCELOT_GPIO_OUT_CLR     0x4
47 #define OCELOT_GPIO_OUT         0x8
48 #define OCELOT_GPIO_IN          0xc
49 #define OCELOT_GPIO_OE          0x10
50 #define OCELOT_GPIO_INTR        0x14
51 #define OCELOT_GPIO_INTR_ENA    0x18
52 #define OCELOT_GPIO_INTR_IDENT  0x1c
53 #define OCELOT_GPIO_ALT0        0x20
54 #define OCELOT_GPIO_ALT1        0x24
55 #define OCELOT_GPIO_SD_MAP      0x28
56
57 #define OCELOT_FUNC_PER_PIN     4
58
59 enum {
60         FUNC_NONE,
61         FUNC_GPIO,
62         FUNC_IRQ0,
63         FUNC_IRQ0_IN,
64         FUNC_IRQ0_OUT,
65         FUNC_IRQ1,
66         FUNC_IRQ1_IN,
67         FUNC_IRQ1_OUT,
68         FUNC_EXT_IRQ,
69         FUNC_MIIM,
70         FUNC_PHY_LED,
71         FUNC_PCI_WAKE,
72         FUNC_MD,
73         FUNC_PTP0,
74         FUNC_PTP1,
75         FUNC_PTP2,
76         FUNC_PTP3,
77         FUNC_PWM,
78         FUNC_RECO_CLK,
79         FUNC_SFP,
80         FUNC_SG0,
81         FUNC_SG1,
82         FUNC_SG2,
83         FUNC_SI,
84         FUNC_SI2,
85         FUNC_TACHO,
86         FUNC_TWI,
87         FUNC_TWI2,
88         FUNC_TWI3,
89         FUNC_TWI_SCL_M,
90         FUNC_UART,
91         FUNC_UART2,
92         FUNC_UART3,
93         FUNC_PLL_STAT,
94         FUNC_EMMC,
95         FUNC_REF_CLK,
96         FUNC_RCVRD_CLK,
97         FUNC_MAX
98 };
99
100 static const char *const ocelot_function_names[] = {
101         [FUNC_NONE]             = "none",
102         [FUNC_GPIO]             = "gpio",
103         [FUNC_IRQ0]             = "irq0",
104         [FUNC_IRQ0_IN]          = "irq0_in",
105         [FUNC_IRQ0_OUT]         = "irq0_out",
106         [FUNC_IRQ1]             = "irq1",
107         [FUNC_IRQ1_IN]          = "irq1_in",
108         [FUNC_IRQ1_OUT]         = "irq1_out",
109         [FUNC_EXT_IRQ]          = "ext_irq",
110         [FUNC_MIIM]             = "miim",
111         [FUNC_PHY_LED]          = "phy_led",
112         [FUNC_PCI_WAKE]         = "pci_wake",
113         [FUNC_MD]               = "md",
114         [FUNC_PTP0]             = "ptp0",
115         [FUNC_PTP1]             = "ptp1",
116         [FUNC_PTP2]             = "ptp2",
117         [FUNC_PTP3]             = "ptp3",
118         [FUNC_PWM]              = "pwm",
119         [FUNC_RECO_CLK]         = "reco_clk",
120         [FUNC_SFP]              = "sfp",
121         [FUNC_SG0]              = "sg0",
122         [FUNC_SG1]              = "sg1",
123         [FUNC_SG2]              = "sg2",
124         [FUNC_SI]               = "si",
125         [FUNC_SI2]              = "si2",
126         [FUNC_TACHO]            = "tacho",
127         [FUNC_TWI]              = "twi",
128         [FUNC_TWI2]             = "twi2",
129         [FUNC_TWI3]             = "twi3",
130         [FUNC_TWI_SCL_M]        = "twi_scl_m",
131         [FUNC_UART]             = "uart",
132         [FUNC_UART2]            = "uart2",
133         [FUNC_UART3]            = "uart3",
134         [FUNC_PLL_STAT]         = "pll_stat",
135         [FUNC_EMMC]             = "emmc",
136         [FUNC_REF_CLK]          = "ref_clk",
137         [FUNC_RCVRD_CLK]        = "rcvrd_clk",
138 };
139
140 struct ocelot_pmx_func {
141         const char **groups;
142         unsigned int ngroups;
143 };
144
145 struct ocelot_pin_caps {
146         unsigned int pin;
147         unsigned char functions[OCELOT_FUNC_PER_PIN];
148 };
149
150 struct ocelot_pinctrl {
151         struct device *dev;
152         struct pinctrl_dev *pctl;
153         struct gpio_chip gpio_chip;
154         struct regmap *map;
155         void __iomem *pincfg;
156         struct pinctrl_desc *desc;
157         struct ocelot_pmx_func func[FUNC_MAX];
158         u8 stride;
159 };
160
161 #define LUTON_P(p, f0, f1)                                              \
162 static struct ocelot_pin_caps luton_pin_##p = {                         \
163         .pin = p,                                                       \
164         .functions = {                                                  \
165                         FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE,     \
166         },                                                              \
167 }
168
169 LUTON_P(0,  SG0,       NONE);
170 LUTON_P(1,  SG0,       NONE);
171 LUTON_P(2,  SG0,       NONE);
172 LUTON_P(3,  SG0,       NONE);
173 LUTON_P(4,  TACHO,     NONE);
174 LUTON_P(5,  TWI,       PHY_LED);
175 LUTON_P(6,  TWI,       PHY_LED);
176 LUTON_P(7,  NONE,      PHY_LED);
177 LUTON_P(8,  EXT_IRQ,   PHY_LED);
178 LUTON_P(9,  EXT_IRQ,   PHY_LED);
179 LUTON_P(10, SFP,       PHY_LED);
180 LUTON_P(11, SFP,       PHY_LED);
181 LUTON_P(12, SFP,       PHY_LED);
182 LUTON_P(13, SFP,       PHY_LED);
183 LUTON_P(14, SI,        PHY_LED);
184 LUTON_P(15, SI,        PHY_LED);
185 LUTON_P(16, SI,        PHY_LED);
186 LUTON_P(17, SFP,       PHY_LED);
187 LUTON_P(18, SFP,       PHY_LED);
188 LUTON_P(19, SFP,       PHY_LED);
189 LUTON_P(20, SFP,       PHY_LED);
190 LUTON_P(21, SFP,       PHY_LED);
191 LUTON_P(22, SFP,       PHY_LED);
192 LUTON_P(23, SFP,       PHY_LED);
193 LUTON_P(24, SFP,       PHY_LED);
194 LUTON_P(25, SFP,       PHY_LED);
195 LUTON_P(26, SFP,       PHY_LED);
196 LUTON_P(27, SFP,       PHY_LED);
197 LUTON_P(28, SFP,       PHY_LED);
198 LUTON_P(29, PWM,       NONE);
199 LUTON_P(30, UART,      NONE);
200 LUTON_P(31, UART,      NONE);
201
202 #define LUTON_PIN(n) {                                          \
203         .number = n,                                            \
204         .name = "GPIO_"#n,                                      \
205         .drv_data = &luton_pin_##n                              \
206 }
207
208 static const struct pinctrl_pin_desc luton_pins[] = {
209         LUTON_PIN(0),
210         LUTON_PIN(1),
211         LUTON_PIN(2),
212         LUTON_PIN(3),
213         LUTON_PIN(4),
214         LUTON_PIN(5),
215         LUTON_PIN(6),
216         LUTON_PIN(7),
217         LUTON_PIN(8),
218         LUTON_PIN(9),
219         LUTON_PIN(10),
220         LUTON_PIN(11),
221         LUTON_PIN(12),
222         LUTON_PIN(13),
223         LUTON_PIN(14),
224         LUTON_PIN(15),
225         LUTON_PIN(16),
226         LUTON_PIN(17),
227         LUTON_PIN(18),
228         LUTON_PIN(19),
229         LUTON_PIN(20),
230         LUTON_PIN(21),
231         LUTON_PIN(22),
232         LUTON_PIN(23),
233         LUTON_PIN(24),
234         LUTON_PIN(25),
235         LUTON_PIN(26),
236         LUTON_PIN(27),
237         LUTON_PIN(28),
238         LUTON_PIN(29),
239         LUTON_PIN(30),
240         LUTON_PIN(31),
241 };
242
243 #define SERVAL_P(p, f0, f1, f2)                                         \
244 static struct ocelot_pin_caps serval_pin_##p = {                        \
245         .pin = p,                                                       \
246         .functions = {                                                  \
247                         FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2,     \
248         },                                                              \
249 }
250
251 SERVAL_P(0,  SG0,       NONE,      NONE);
252 SERVAL_P(1,  SG0,       NONE,      NONE);
253 SERVAL_P(2,  SG0,       NONE,      NONE);
254 SERVAL_P(3,  SG0,       NONE,      NONE);
255 SERVAL_P(4,  TACHO,     NONE,      NONE);
256 SERVAL_P(5,  PWM,       NONE,      NONE);
257 SERVAL_P(6,  TWI,       NONE,      NONE);
258 SERVAL_P(7,  TWI,       NONE,      NONE);
259 SERVAL_P(8,  SI,        NONE,      NONE);
260 SERVAL_P(9,  SI,        MD,        NONE);
261 SERVAL_P(10, SI,        MD,        NONE);
262 SERVAL_P(11, SFP,       MD,        TWI_SCL_M);
263 SERVAL_P(12, SFP,       MD,        TWI_SCL_M);
264 SERVAL_P(13, SFP,       UART2,     TWI_SCL_M);
265 SERVAL_P(14, SFP,       UART2,     TWI_SCL_M);
266 SERVAL_P(15, SFP,       PTP0,      TWI_SCL_M);
267 SERVAL_P(16, SFP,       PTP0,      TWI_SCL_M);
268 SERVAL_P(17, SFP,       PCI_WAKE,  TWI_SCL_M);
269 SERVAL_P(18, SFP,       NONE,      TWI_SCL_M);
270 SERVAL_P(19, SFP,       NONE,      TWI_SCL_M);
271 SERVAL_P(20, SFP,       NONE,      TWI_SCL_M);
272 SERVAL_P(21, SFP,       NONE,      TWI_SCL_M);
273 SERVAL_P(22, NONE,      NONE,      NONE);
274 SERVAL_P(23, NONE,      NONE,      NONE);
275 SERVAL_P(24, NONE,      NONE,      NONE);
276 SERVAL_P(25, NONE,      NONE,      NONE);
277 SERVAL_P(26, UART,      NONE,      NONE);
278 SERVAL_P(27, UART,      NONE,      NONE);
279 SERVAL_P(28, IRQ0,      NONE,      NONE);
280 SERVAL_P(29, IRQ1,      NONE,      NONE);
281 SERVAL_P(30, PTP0,      NONE,      NONE);
282 SERVAL_P(31, PTP0,      NONE,      NONE);
283
284 #define SERVAL_PIN(n) {                                         \
285         .number = n,                                            \
286         .name = "GPIO_"#n,                                      \
287         .drv_data = &serval_pin_##n                             \
288 }
289
290 static const struct pinctrl_pin_desc serval_pins[] = {
291         SERVAL_PIN(0),
292         SERVAL_PIN(1),
293         SERVAL_PIN(2),
294         SERVAL_PIN(3),
295         SERVAL_PIN(4),
296         SERVAL_PIN(5),
297         SERVAL_PIN(6),
298         SERVAL_PIN(7),
299         SERVAL_PIN(8),
300         SERVAL_PIN(9),
301         SERVAL_PIN(10),
302         SERVAL_PIN(11),
303         SERVAL_PIN(12),
304         SERVAL_PIN(13),
305         SERVAL_PIN(14),
306         SERVAL_PIN(15),
307         SERVAL_PIN(16),
308         SERVAL_PIN(17),
309         SERVAL_PIN(18),
310         SERVAL_PIN(19),
311         SERVAL_PIN(20),
312         SERVAL_PIN(21),
313         SERVAL_PIN(22),
314         SERVAL_PIN(23),
315         SERVAL_PIN(24),
316         SERVAL_PIN(25),
317         SERVAL_PIN(26),
318         SERVAL_PIN(27),
319         SERVAL_PIN(28),
320         SERVAL_PIN(29),
321         SERVAL_PIN(30),
322         SERVAL_PIN(31),
323 };
324
325 #define OCELOT_P(p, f0, f1, f2)                                         \
326 static struct ocelot_pin_caps ocelot_pin_##p = {                        \
327         .pin = p,                                                       \
328         .functions = {                                                  \
329                         FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2,     \
330         },                                                              \
331 }
332
333 OCELOT_P(0,  SG0,       NONE,      NONE);
334 OCELOT_P(1,  SG0,       NONE,      NONE);
335 OCELOT_P(2,  SG0,       NONE,      NONE);
336 OCELOT_P(3,  SG0,       NONE,      NONE);
337 OCELOT_P(4,  IRQ0_IN,   IRQ0_OUT,  TWI_SCL_M);
338 OCELOT_P(5,  IRQ1_IN,   IRQ1_OUT,  PCI_WAKE);
339 OCELOT_P(6,  UART,      TWI_SCL_M, NONE);
340 OCELOT_P(7,  UART,      TWI_SCL_M, NONE);
341 OCELOT_P(8,  SI,        TWI_SCL_M, IRQ0_OUT);
342 OCELOT_P(9,  SI,        TWI_SCL_M, IRQ1_OUT);
343 OCELOT_P(10, PTP2,      TWI_SCL_M, SFP);
344 OCELOT_P(11, PTP3,      TWI_SCL_M, SFP);
345 OCELOT_P(12, UART2,     TWI_SCL_M, SFP);
346 OCELOT_P(13, UART2,     TWI_SCL_M, SFP);
347 OCELOT_P(14, MIIM,      TWI_SCL_M, SFP);
348 OCELOT_P(15, MIIM,      TWI_SCL_M, SFP);
349 OCELOT_P(16, TWI,       NONE,      SI);
350 OCELOT_P(17, TWI,       TWI_SCL_M, SI);
351 OCELOT_P(18, PTP0,      TWI_SCL_M, NONE);
352 OCELOT_P(19, PTP1,      TWI_SCL_M, NONE);
353 OCELOT_P(20, RECO_CLK,  TACHO,     TWI_SCL_M);
354 OCELOT_P(21, RECO_CLK,  PWM,       TWI_SCL_M);
355
356 #define OCELOT_PIN(n) {                                         \
357         .number = n,                                            \
358         .name = "GPIO_"#n,                                      \
359         .drv_data = &ocelot_pin_##n                             \
360 }
361
362 static const struct pinctrl_pin_desc ocelot_pins[] = {
363         OCELOT_PIN(0),
364         OCELOT_PIN(1),
365         OCELOT_PIN(2),
366         OCELOT_PIN(3),
367         OCELOT_PIN(4),
368         OCELOT_PIN(5),
369         OCELOT_PIN(6),
370         OCELOT_PIN(7),
371         OCELOT_PIN(8),
372         OCELOT_PIN(9),
373         OCELOT_PIN(10),
374         OCELOT_PIN(11),
375         OCELOT_PIN(12),
376         OCELOT_PIN(13),
377         OCELOT_PIN(14),
378         OCELOT_PIN(15),
379         OCELOT_PIN(16),
380         OCELOT_PIN(17),
381         OCELOT_PIN(18),
382         OCELOT_PIN(19),
383         OCELOT_PIN(20),
384         OCELOT_PIN(21),
385 };
386
387 #define JAGUAR2_P(p, f0, f1)                                            \
388 static struct ocelot_pin_caps jaguar2_pin_##p = {                       \
389         .pin = p,                                                       \
390         .functions = {                                                  \
391                         FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE      \
392         },                                                              \
393 }
394
395 JAGUAR2_P(0,  SG0,       NONE);
396 JAGUAR2_P(1,  SG0,       NONE);
397 JAGUAR2_P(2,  SG0,       NONE);
398 JAGUAR2_P(3,  SG0,       NONE);
399 JAGUAR2_P(4,  SG1,       NONE);
400 JAGUAR2_P(5,  SG1,       NONE);
401 JAGUAR2_P(6,  IRQ0_IN,   IRQ0_OUT);
402 JAGUAR2_P(7,  IRQ1_IN,   IRQ1_OUT);
403 JAGUAR2_P(8,  PTP0,      NONE);
404 JAGUAR2_P(9,  PTP1,      NONE);
405 JAGUAR2_P(10, UART,      NONE);
406 JAGUAR2_P(11, UART,      NONE);
407 JAGUAR2_P(12, SG1,       NONE);
408 JAGUAR2_P(13, SG1,       NONE);
409 JAGUAR2_P(14, TWI,       TWI_SCL_M);
410 JAGUAR2_P(15, TWI,       NONE);
411 JAGUAR2_P(16, SI,        TWI_SCL_M);
412 JAGUAR2_P(17, SI,        TWI_SCL_M);
413 JAGUAR2_P(18, SI,        TWI_SCL_M);
414 JAGUAR2_P(19, PCI_WAKE,  NONE);
415 JAGUAR2_P(20, IRQ0_OUT,  TWI_SCL_M);
416 JAGUAR2_P(21, IRQ1_OUT,  TWI_SCL_M);
417 JAGUAR2_P(22, TACHO,     NONE);
418 JAGUAR2_P(23, PWM,       NONE);
419 JAGUAR2_P(24, UART2,     NONE);
420 JAGUAR2_P(25, UART2,     SI);
421 JAGUAR2_P(26, PTP2,      SI);
422 JAGUAR2_P(27, PTP3,      SI);
423 JAGUAR2_P(28, TWI2,      SI);
424 JAGUAR2_P(29, TWI2,      SI);
425 JAGUAR2_P(30, SG2,       SI);
426 JAGUAR2_P(31, SG2,       SI);
427 JAGUAR2_P(32, SG2,       SI);
428 JAGUAR2_P(33, SG2,       SI);
429 JAGUAR2_P(34, NONE,      TWI_SCL_M);
430 JAGUAR2_P(35, NONE,      TWI_SCL_M);
431 JAGUAR2_P(36, NONE,      TWI_SCL_M);
432 JAGUAR2_P(37, NONE,      TWI_SCL_M);
433 JAGUAR2_P(38, NONE,      TWI_SCL_M);
434 JAGUAR2_P(39, NONE,      TWI_SCL_M);
435 JAGUAR2_P(40, NONE,      TWI_SCL_M);
436 JAGUAR2_P(41, NONE,      TWI_SCL_M);
437 JAGUAR2_P(42, NONE,      TWI_SCL_M);
438 JAGUAR2_P(43, NONE,      TWI_SCL_M);
439 JAGUAR2_P(44, NONE,      SFP);
440 JAGUAR2_P(45, NONE,      SFP);
441 JAGUAR2_P(46, NONE,      SFP);
442 JAGUAR2_P(47, NONE,      SFP);
443 JAGUAR2_P(48, SFP,       NONE);
444 JAGUAR2_P(49, SFP,       SI);
445 JAGUAR2_P(50, SFP,       SI);
446 JAGUAR2_P(51, SFP,       SI);
447 JAGUAR2_P(52, SFP,       NONE);
448 JAGUAR2_P(53, SFP,       NONE);
449 JAGUAR2_P(54, SFP,       NONE);
450 JAGUAR2_P(55, SFP,       NONE);
451 JAGUAR2_P(56, MIIM,      SFP);
452 JAGUAR2_P(57, MIIM,      SFP);
453 JAGUAR2_P(58, MIIM,      SFP);
454 JAGUAR2_P(59, MIIM,      SFP);
455 JAGUAR2_P(60, NONE,      NONE);
456 JAGUAR2_P(61, NONE,      NONE);
457 JAGUAR2_P(62, NONE,      NONE);
458 JAGUAR2_P(63, NONE,      NONE);
459
460 #define JAGUAR2_PIN(n) {                                        \
461         .number = n,                                            \
462         .name = "GPIO_"#n,                                      \
463         .drv_data = &jaguar2_pin_##n                            \
464 }
465
466 static const struct pinctrl_pin_desc jaguar2_pins[] = {
467         JAGUAR2_PIN(0),
468         JAGUAR2_PIN(1),
469         JAGUAR2_PIN(2),
470         JAGUAR2_PIN(3),
471         JAGUAR2_PIN(4),
472         JAGUAR2_PIN(5),
473         JAGUAR2_PIN(6),
474         JAGUAR2_PIN(7),
475         JAGUAR2_PIN(8),
476         JAGUAR2_PIN(9),
477         JAGUAR2_PIN(10),
478         JAGUAR2_PIN(11),
479         JAGUAR2_PIN(12),
480         JAGUAR2_PIN(13),
481         JAGUAR2_PIN(14),
482         JAGUAR2_PIN(15),
483         JAGUAR2_PIN(16),
484         JAGUAR2_PIN(17),
485         JAGUAR2_PIN(18),
486         JAGUAR2_PIN(19),
487         JAGUAR2_PIN(20),
488         JAGUAR2_PIN(21),
489         JAGUAR2_PIN(22),
490         JAGUAR2_PIN(23),
491         JAGUAR2_PIN(24),
492         JAGUAR2_PIN(25),
493         JAGUAR2_PIN(26),
494         JAGUAR2_PIN(27),
495         JAGUAR2_PIN(28),
496         JAGUAR2_PIN(29),
497         JAGUAR2_PIN(30),
498         JAGUAR2_PIN(31),
499         JAGUAR2_PIN(32),
500         JAGUAR2_PIN(33),
501         JAGUAR2_PIN(34),
502         JAGUAR2_PIN(35),
503         JAGUAR2_PIN(36),
504         JAGUAR2_PIN(37),
505         JAGUAR2_PIN(38),
506         JAGUAR2_PIN(39),
507         JAGUAR2_PIN(40),
508         JAGUAR2_PIN(41),
509         JAGUAR2_PIN(42),
510         JAGUAR2_PIN(43),
511         JAGUAR2_PIN(44),
512         JAGUAR2_PIN(45),
513         JAGUAR2_PIN(46),
514         JAGUAR2_PIN(47),
515         JAGUAR2_PIN(48),
516         JAGUAR2_PIN(49),
517         JAGUAR2_PIN(50),
518         JAGUAR2_PIN(51),
519         JAGUAR2_PIN(52),
520         JAGUAR2_PIN(53),
521         JAGUAR2_PIN(54),
522         JAGUAR2_PIN(55),
523         JAGUAR2_PIN(56),
524         JAGUAR2_PIN(57),
525         JAGUAR2_PIN(58),
526         JAGUAR2_PIN(59),
527         JAGUAR2_PIN(60),
528         JAGUAR2_PIN(61),
529         JAGUAR2_PIN(62),
530         JAGUAR2_PIN(63),
531 };
532
533 #define SPARX5_P(p, f0, f1, f2)                                 \
534 static struct ocelot_pin_caps sparx5_pin_##p = {                        \
535         .pin = p,                                                       \
536         .functions = {                                                  \
537                 FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_##f2              \
538         },                                                              \
539 }
540
541 SPARX5_P(0,  SG0,       PLL_STAT,  NONE);
542 SPARX5_P(1,  SG0,       NONE,      NONE);
543 SPARX5_P(2,  SG0,       NONE,      NONE);
544 SPARX5_P(3,  SG0,       NONE,      NONE);
545 SPARX5_P(4,  SG1,       NONE,      NONE);
546 SPARX5_P(5,  SG1,       NONE,      NONE);
547 SPARX5_P(6,  IRQ0_IN,   IRQ0_OUT,  SFP);
548 SPARX5_P(7,  IRQ1_IN,   IRQ1_OUT,  SFP);
549 SPARX5_P(8,  PTP0,      NONE,      SFP);
550 SPARX5_P(9,  PTP1,      SFP,       TWI_SCL_M);
551 SPARX5_P(10, UART,      NONE,      NONE);
552 SPARX5_P(11, UART,      NONE,      NONE);
553 SPARX5_P(12, SG1,       NONE,      NONE);
554 SPARX5_P(13, SG1,       NONE,      NONE);
555 SPARX5_P(14, TWI,       TWI_SCL_M, NONE);
556 SPARX5_P(15, TWI,       NONE,      NONE);
557 SPARX5_P(16, SI,        TWI_SCL_M, SFP);
558 SPARX5_P(17, SI,        TWI_SCL_M, SFP);
559 SPARX5_P(18, SI,        TWI_SCL_M, SFP);
560 SPARX5_P(19, PCI_WAKE,  TWI_SCL_M, SFP);
561 SPARX5_P(20, IRQ0_OUT,  TWI_SCL_M, SFP);
562 SPARX5_P(21, IRQ1_OUT,  TACHO,     SFP);
563 SPARX5_P(22, TACHO,     IRQ0_OUT,  TWI_SCL_M);
564 SPARX5_P(23, PWM,       UART3,     TWI_SCL_M);
565 SPARX5_P(24, PTP2,      UART3,     TWI_SCL_M);
566 SPARX5_P(25, PTP3,      SI,        TWI_SCL_M);
567 SPARX5_P(26, UART2,     SI,        TWI_SCL_M);
568 SPARX5_P(27, UART2,     SI,        TWI_SCL_M);
569 SPARX5_P(28, TWI2,      SI,        SFP);
570 SPARX5_P(29, TWI2,      SI,        SFP);
571 SPARX5_P(30, SG2,       SI,        PWM);
572 SPARX5_P(31, SG2,       SI,        TWI_SCL_M);
573 SPARX5_P(32, SG2,       SI,        TWI_SCL_M);
574 SPARX5_P(33, SG2,       SI,        SFP);
575 SPARX5_P(34, NONE,      TWI_SCL_M, EMMC);
576 SPARX5_P(35, SFP,       TWI_SCL_M, EMMC);
577 SPARX5_P(36, SFP,       TWI_SCL_M, EMMC);
578 SPARX5_P(37, SFP,       NONE,      EMMC);
579 SPARX5_P(38, NONE,      TWI_SCL_M, EMMC);
580 SPARX5_P(39, SI2,       TWI_SCL_M, EMMC);
581 SPARX5_P(40, SI2,       TWI_SCL_M, EMMC);
582 SPARX5_P(41, SI2,       TWI_SCL_M, EMMC);
583 SPARX5_P(42, SI2,       TWI_SCL_M, EMMC);
584 SPARX5_P(43, SI2,       TWI_SCL_M, EMMC);
585 SPARX5_P(44, SI,        SFP,       EMMC);
586 SPARX5_P(45, SI,        SFP,       EMMC);
587 SPARX5_P(46, NONE,      SFP,       EMMC);
588 SPARX5_P(47, NONE,      SFP,       EMMC);
589 SPARX5_P(48, TWI3,      SI,        SFP);
590 SPARX5_P(49, TWI3,      NONE,      SFP);
591 SPARX5_P(50, SFP,       NONE,      TWI_SCL_M);
592 SPARX5_P(51, SFP,       SI,        TWI_SCL_M);
593 SPARX5_P(52, SFP,       MIIM,      TWI_SCL_M);
594 SPARX5_P(53, SFP,       MIIM,      TWI_SCL_M);
595 SPARX5_P(54, SFP,       PTP2,      TWI_SCL_M);
596 SPARX5_P(55, SFP,       PTP3,      PCI_WAKE);
597 SPARX5_P(56, MIIM,      SFP,       TWI_SCL_M);
598 SPARX5_P(57, MIIM,      SFP,       TWI_SCL_M);
599 SPARX5_P(58, MIIM,      SFP,       TWI_SCL_M);
600 SPARX5_P(59, MIIM,      SFP,       NONE);
601 SPARX5_P(60, RECO_CLK,  NONE,      NONE);
602 SPARX5_P(61, RECO_CLK,  NONE,      NONE);
603 SPARX5_P(62, RECO_CLK,  PLL_STAT,  NONE);
604 SPARX5_P(63, RECO_CLK,  NONE,      NONE);
605
606 #define SPARX5_PIN(n) {                                 \
607         .number = n,                                            \
608         .name = "GPIO_"#n,                                      \
609         .drv_data = &sparx5_pin_##n                             \
610 }
611
612 static const struct pinctrl_pin_desc sparx5_pins[] = {
613         SPARX5_PIN(0),
614         SPARX5_PIN(1),
615         SPARX5_PIN(2),
616         SPARX5_PIN(3),
617         SPARX5_PIN(4),
618         SPARX5_PIN(5),
619         SPARX5_PIN(6),
620         SPARX5_PIN(7),
621         SPARX5_PIN(8),
622         SPARX5_PIN(9),
623         SPARX5_PIN(10),
624         SPARX5_PIN(11),
625         SPARX5_PIN(12),
626         SPARX5_PIN(13),
627         SPARX5_PIN(14),
628         SPARX5_PIN(15),
629         SPARX5_PIN(16),
630         SPARX5_PIN(17),
631         SPARX5_PIN(18),
632         SPARX5_PIN(19),
633         SPARX5_PIN(20),
634         SPARX5_PIN(21),
635         SPARX5_PIN(22),
636         SPARX5_PIN(23),
637         SPARX5_PIN(24),
638         SPARX5_PIN(25),
639         SPARX5_PIN(26),
640         SPARX5_PIN(27),
641         SPARX5_PIN(28),
642         SPARX5_PIN(29),
643         SPARX5_PIN(30),
644         SPARX5_PIN(31),
645         SPARX5_PIN(32),
646         SPARX5_PIN(33),
647         SPARX5_PIN(34),
648         SPARX5_PIN(35),
649         SPARX5_PIN(36),
650         SPARX5_PIN(37),
651         SPARX5_PIN(38),
652         SPARX5_PIN(39),
653         SPARX5_PIN(40),
654         SPARX5_PIN(41),
655         SPARX5_PIN(42),
656         SPARX5_PIN(43),
657         SPARX5_PIN(44),
658         SPARX5_PIN(45),
659         SPARX5_PIN(46),
660         SPARX5_PIN(47),
661         SPARX5_PIN(48),
662         SPARX5_PIN(49),
663         SPARX5_PIN(50),
664         SPARX5_PIN(51),
665         SPARX5_PIN(52),
666         SPARX5_PIN(53),
667         SPARX5_PIN(54),
668         SPARX5_PIN(55),
669         SPARX5_PIN(56),
670         SPARX5_PIN(57),
671         SPARX5_PIN(58),
672         SPARX5_PIN(59),
673         SPARX5_PIN(60),
674         SPARX5_PIN(61),
675         SPARX5_PIN(62),
676         SPARX5_PIN(63),
677 };
678
679 static int ocelot_get_functions_count(struct pinctrl_dev *pctldev)
680 {
681         return ARRAY_SIZE(ocelot_function_names);
682 }
683
684 static const char *ocelot_get_function_name(struct pinctrl_dev *pctldev,
685                                             unsigned int function)
686 {
687         return ocelot_function_names[function];
688 }
689
690 static int ocelot_get_function_groups(struct pinctrl_dev *pctldev,
691                                       unsigned int function,
692                                       const char *const **groups,
693                                       unsigned *const num_groups)
694 {
695         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
696
697         *groups  = info->func[function].groups;
698         *num_groups = info->func[function].ngroups;
699
700         return 0;
701 }
702
703 static int ocelot_pin_function_idx(struct ocelot_pinctrl *info,
704                                    unsigned int pin, unsigned int function)
705 {
706         struct ocelot_pin_caps *p = info->desc->pins[pin].drv_data;
707         int i;
708
709         for (i = 0; i < OCELOT_FUNC_PER_PIN; i++) {
710                 if (function == p->functions[i])
711                         return i;
712         }
713
714         return -1;
715 }
716
717 #define REG_ALT(msb, info, p) (OCELOT_GPIO_ALT0 * (info)->stride + 4 * ((msb) + ((info)->stride * ((p) / 32))))
718
719 static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev,
720                                  unsigned int selector, unsigned int group)
721 {
722         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
723         struct ocelot_pin_caps *pin = info->desc->pins[group].drv_data;
724         unsigned int p = pin->pin % 32;
725         int f;
726
727         f = ocelot_pin_function_idx(info, group, selector);
728         if (f < 0)
729                 return -EINVAL;
730
731         /*
732          * f is encoded on two bits.
733          * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of
734          * ALT[1]
735          * This is racy because both registers can't be updated at the same time
736          * but it doesn't matter much for now.
737          * Note: ALT0/ALT1 are organized specially for 64 gpio targets
738          */
739         regmap_update_bits(info->map, REG_ALT(0, info, pin->pin),
740                            BIT(p), f << p);
741         regmap_update_bits(info->map, REG_ALT(1, info, pin->pin),
742                            BIT(p), f << (p - 1));
743
744         return 0;
745 }
746
747 #define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32)))
748
749 static int ocelot_gpio_set_direction(struct pinctrl_dev *pctldev,
750                                      struct pinctrl_gpio_range *range,
751                                      unsigned int pin, bool input)
752 {
753         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
754         unsigned int p = pin % 32;
755
756         regmap_update_bits(info->map, REG(OCELOT_GPIO_OE, info, pin), BIT(p),
757                            input ? 0 : BIT(p));
758
759         return 0;
760 }
761
762 static int ocelot_gpio_request_enable(struct pinctrl_dev *pctldev,
763                                       struct pinctrl_gpio_range *range,
764                                       unsigned int offset)
765 {
766         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
767         unsigned int p = offset % 32;
768
769         regmap_update_bits(info->map, REG_ALT(0, info, offset),
770                            BIT(p), 0);
771         regmap_update_bits(info->map, REG_ALT(1, info, offset),
772                            BIT(p), 0);
773
774         return 0;
775 }
776
777 static const struct pinmux_ops ocelot_pmx_ops = {
778         .get_functions_count = ocelot_get_functions_count,
779         .get_function_name = ocelot_get_function_name,
780         .get_function_groups = ocelot_get_function_groups,
781         .set_mux = ocelot_pinmux_set_mux,
782         .gpio_set_direction = ocelot_gpio_set_direction,
783         .gpio_request_enable = ocelot_gpio_request_enable,
784 };
785
786 static int ocelot_pctl_get_groups_count(struct pinctrl_dev *pctldev)
787 {
788         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
789
790         return info->desc->npins;
791 }
792
793 static const char *ocelot_pctl_get_group_name(struct pinctrl_dev *pctldev,
794                                               unsigned int group)
795 {
796         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
797
798         return info->desc->pins[group].name;
799 }
800
801 static int ocelot_pctl_get_group_pins(struct pinctrl_dev *pctldev,
802                                       unsigned int group,
803                                       const unsigned int **pins,
804                                       unsigned int *num_pins)
805 {
806         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
807
808         *pins = &info->desc->pins[group].number;
809         *num_pins = 1;
810
811         return 0;
812 }
813
814 static int ocelot_hw_get_value(struct ocelot_pinctrl *info,
815                                unsigned int pin,
816                                unsigned int reg,
817                                int *val)
818 {
819         int ret = -EOPNOTSUPP;
820
821         if (info->pincfg) {
822                 u32 regcfg = readl(info->pincfg + (pin * sizeof(u32)));
823
824                 ret = 0;
825                 switch (reg) {
826                 case PINCONF_BIAS:
827                         *val = regcfg & BIAS_BITS;
828                         break;
829
830                 case PINCONF_SCHMITT:
831                         *val = regcfg & SCHMITT_BIT;
832                         break;
833
834                 case PINCONF_DRIVE_STRENGTH:
835                         *val = regcfg & DRIVE_BITS;
836                         break;
837
838                 default:
839                         ret = -EOPNOTSUPP;
840                         break;
841                 }
842         }
843         return ret;
844 }
845
846 static int ocelot_hw_set_value(struct ocelot_pinctrl *info,
847                                unsigned int pin,
848                                unsigned int reg,
849                                int val)
850 {
851         int ret = -EOPNOTSUPP;
852
853         if (info->pincfg) {
854                 void __iomem *regaddr = info->pincfg + (pin * sizeof(u32));
855
856                 ret = 0;
857                 switch (reg) {
858                 case PINCONF_BIAS:
859                         ocelot_clrsetbits(regaddr, BIAS_BITS, val);
860                         break;
861
862                 case PINCONF_SCHMITT:
863                         ocelot_clrsetbits(regaddr, SCHMITT_BIT, val);
864                         break;
865
866                 case PINCONF_DRIVE_STRENGTH:
867                         if (val <= 3)
868                                 ocelot_clrsetbits(regaddr, DRIVE_BITS, val);
869                         else
870                                 ret = -EINVAL;
871                         break;
872
873                 default:
874                         ret = -EOPNOTSUPP;
875                         break;
876                 }
877         }
878         return ret;
879 }
880
881 static int ocelot_pinconf_get(struct pinctrl_dev *pctldev,
882                               unsigned int pin, unsigned long *config)
883 {
884         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
885         u32 param = pinconf_to_config_param(*config);
886         int val, err;
887
888         switch (param) {
889         case PIN_CONFIG_BIAS_DISABLE:
890         case PIN_CONFIG_BIAS_PULL_UP:
891         case PIN_CONFIG_BIAS_PULL_DOWN:
892                 err = ocelot_hw_get_value(info, pin, PINCONF_BIAS, &val);
893                 if (err)
894                         return err;
895                 if (param == PIN_CONFIG_BIAS_DISABLE)
896                         val = (val == 0);
897                 else if (param == PIN_CONFIG_BIAS_PULL_DOWN)
898                         val = (val & BIAS_PD_BIT ? true : false);
899                 else    /* PIN_CONFIG_BIAS_PULL_UP */
900                         val = (val & BIAS_PU_BIT ? true : false);
901                 break;
902
903         case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
904                 err = ocelot_hw_get_value(info, pin, PINCONF_SCHMITT, &val);
905                 if (err)
906                         return err;
907
908                 val = (val & SCHMITT_BIT ? true : false);
909                 break;
910
911         case PIN_CONFIG_DRIVE_STRENGTH:
912                 err = ocelot_hw_get_value(info, pin, PINCONF_DRIVE_STRENGTH,
913                                           &val);
914                 if (err)
915                         return err;
916                 break;
917
918         case PIN_CONFIG_OUTPUT:
919                 err = regmap_read(info->map, REG(OCELOT_GPIO_OUT, info, pin),
920                                   &val);
921                 if (err)
922                         return err;
923                 val = !!(val & BIT(pin % 32));
924                 break;
925
926         case PIN_CONFIG_INPUT_ENABLE:
927         case PIN_CONFIG_OUTPUT_ENABLE:
928                 err = regmap_read(info->map, REG(OCELOT_GPIO_OE, info, pin),
929                                   &val);
930                 if (err)
931                         return err;
932                 val = val & BIT(pin % 32);
933                 if (param == PIN_CONFIG_OUTPUT_ENABLE)
934                         val = !!val;
935                 else
936                         val = !val;
937                 break;
938
939         default:
940                 return -EOPNOTSUPP;
941         }
942
943         *config = pinconf_to_config_packed(param, val);
944
945         return 0;
946 }
947
948 static int ocelot_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
949                               unsigned long *configs, unsigned int num_configs)
950 {
951         struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
952         u32 param, arg, p;
953         int cfg, err = 0;
954
955         for (cfg = 0; cfg < num_configs; cfg++) {
956                 param = pinconf_to_config_param(configs[cfg]);
957                 arg = pinconf_to_config_argument(configs[cfg]);
958
959                 switch (param) {
960                 case PIN_CONFIG_BIAS_DISABLE:
961                 case PIN_CONFIG_BIAS_PULL_UP:
962                 case PIN_CONFIG_BIAS_PULL_DOWN:
963                         arg = (param == PIN_CONFIG_BIAS_DISABLE) ? 0 :
964                         (param == PIN_CONFIG_BIAS_PULL_UP) ? BIAS_PU_BIT :
965                         BIAS_PD_BIT;
966
967                         err = ocelot_hw_set_value(info, pin, PINCONF_BIAS, arg);
968                         if (err)
969                                 goto err;
970
971                         break;
972
973                 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
974                         arg = arg ? SCHMITT_BIT : 0;
975                         err = ocelot_hw_set_value(info, pin, PINCONF_SCHMITT,
976                                                   arg);
977                         if (err)
978                                 goto err;
979
980                         break;
981
982                 case PIN_CONFIG_DRIVE_STRENGTH:
983                         err = ocelot_hw_set_value(info, pin,
984                                                   PINCONF_DRIVE_STRENGTH,
985                                                   arg);
986                         if (err)
987                                 goto err;
988
989                         break;
990
991                 case PIN_CONFIG_OUTPUT_ENABLE:
992                 case PIN_CONFIG_INPUT_ENABLE:
993                 case PIN_CONFIG_OUTPUT:
994                         p = pin % 32;
995                         if (arg)
996                                 regmap_write(info->map,
997                                              REG(OCELOT_GPIO_OUT_SET, info,
998                                                  pin),
999                                              BIT(p));
1000                         else
1001                                 regmap_write(info->map,
1002                                              REG(OCELOT_GPIO_OUT_CLR, info,
1003                                                  pin),
1004                                              BIT(p));
1005                         regmap_update_bits(info->map,
1006                                            REG(OCELOT_GPIO_OE, info, pin),
1007                                            BIT(p),
1008                                            param == PIN_CONFIG_INPUT_ENABLE ?
1009                                            0 : BIT(p));
1010                         break;
1011
1012                 default:
1013                         err = -EOPNOTSUPP;
1014                 }
1015         }
1016 err:
1017         return err;
1018 }
1019
1020 static const struct pinconf_ops ocelot_confops = {
1021         .is_generic = true,
1022         .pin_config_get = ocelot_pinconf_get,
1023         .pin_config_set = ocelot_pinconf_set,
1024         .pin_config_config_dbg_show = pinconf_generic_dump_config,
1025 };
1026
1027 static const struct pinctrl_ops ocelot_pctl_ops = {
1028         .get_groups_count = ocelot_pctl_get_groups_count,
1029         .get_group_name = ocelot_pctl_get_group_name,
1030         .get_group_pins = ocelot_pctl_get_group_pins,
1031         .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
1032         .dt_free_map = pinconf_generic_dt_free_map,
1033 };
1034
1035 static struct pinctrl_desc luton_desc = {
1036         .name = "luton-pinctrl",
1037         .pins = luton_pins,
1038         .npins = ARRAY_SIZE(luton_pins),
1039         .pctlops = &ocelot_pctl_ops,
1040         .pmxops = &ocelot_pmx_ops,
1041         .owner = THIS_MODULE,
1042 };
1043
1044 static struct pinctrl_desc serval_desc = {
1045         .name = "serval-pinctrl",
1046         .pins = serval_pins,
1047         .npins = ARRAY_SIZE(serval_pins),
1048         .pctlops = &ocelot_pctl_ops,
1049         .pmxops = &ocelot_pmx_ops,
1050         .owner = THIS_MODULE,
1051 };
1052
1053 static struct pinctrl_desc ocelot_desc = {
1054         .name = "ocelot-pinctrl",
1055         .pins = ocelot_pins,
1056         .npins = ARRAY_SIZE(ocelot_pins),
1057         .pctlops = &ocelot_pctl_ops,
1058         .pmxops = &ocelot_pmx_ops,
1059         .owner = THIS_MODULE,
1060 };
1061
1062 static struct pinctrl_desc jaguar2_desc = {
1063         .name = "jaguar2-pinctrl",
1064         .pins = jaguar2_pins,
1065         .npins = ARRAY_SIZE(jaguar2_pins),
1066         .pctlops = &ocelot_pctl_ops,
1067         .pmxops = &ocelot_pmx_ops,
1068         .owner = THIS_MODULE,
1069 };
1070
1071 static struct pinctrl_desc sparx5_desc = {
1072         .name = "sparx5-pinctrl",
1073         .pins = sparx5_pins,
1074         .npins = ARRAY_SIZE(sparx5_pins),
1075         .pctlops = &ocelot_pctl_ops,
1076         .pmxops = &ocelot_pmx_ops,
1077         .confops = &ocelot_confops,
1078         .owner = THIS_MODULE,
1079 };
1080
1081 static int ocelot_create_group_func_map(struct device *dev,
1082                                         struct ocelot_pinctrl *info)
1083 {
1084         int f, npins, i;
1085         u8 *pins = kcalloc(info->desc->npins, sizeof(u8), GFP_KERNEL);
1086
1087         if (!pins)
1088                 return -ENOMEM;
1089
1090         for (f = 0; f < FUNC_MAX; f++) {
1091                 for (npins = 0, i = 0; i < info->desc->npins; i++) {
1092                         if (ocelot_pin_function_idx(info, i, f) >= 0)
1093                                 pins[npins++] = i;
1094                 }
1095
1096                 if (!npins)
1097                         continue;
1098
1099                 info->func[f].ngroups = npins;
1100                 info->func[f].groups = devm_kcalloc(dev, npins, sizeof(char *),
1101                                                     GFP_KERNEL);
1102                 if (!info->func[f].groups) {
1103                         kfree(pins);
1104                         return -ENOMEM;
1105                 }
1106
1107                 for (i = 0; i < npins; i++)
1108                         info->func[f].groups[i] =
1109                                 info->desc->pins[pins[i]].name;
1110         }
1111
1112         kfree(pins);
1113
1114         return 0;
1115 }
1116
1117 static int ocelot_pinctrl_register(struct platform_device *pdev,
1118                                    struct ocelot_pinctrl *info)
1119 {
1120         int ret;
1121
1122         ret = ocelot_create_group_func_map(&pdev->dev, info);
1123         if (ret) {
1124                 dev_err(&pdev->dev, "Unable to create group func map.\n");
1125                 return ret;
1126         }
1127
1128         info->pctl = devm_pinctrl_register(&pdev->dev, info->desc, info);
1129         if (IS_ERR(info->pctl)) {
1130                 dev_err(&pdev->dev, "Failed to register pinctrl\n");
1131                 return PTR_ERR(info->pctl);
1132         }
1133
1134         return 0;
1135 }
1136
1137 static int ocelot_gpio_get(struct gpio_chip *chip, unsigned int offset)
1138 {
1139         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1140         unsigned int val;
1141
1142         regmap_read(info->map, REG(OCELOT_GPIO_IN, info, offset), &val);
1143
1144         return !!(val & BIT(offset % 32));
1145 }
1146
1147 static void ocelot_gpio_set(struct gpio_chip *chip, unsigned int offset,
1148                             int value)
1149 {
1150         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1151
1152         if (value)
1153                 regmap_write(info->map, REG(OCELOT_GPIO_OUT_SET, info, offset),
1154                              BIT(offset % 32));
1155         else
1156                 regmap_write(info->map, REG(OCELOT_GPIO_OUT_CLR, info, offset),
1157                              BIT(offset % 32));
1158 }
1159
1160 static int ocelot_gpio_get_direction(struct gpio_chip *chip,
1161                                      unsigned int offset)
1162 {
1163         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1164         unsigned int val;
1165
1166         regmap_read(info->map, REG(OCELOT_GPIO_OE, info, offset), &val);
1167
1168         if (val & BIT(offset % 32))
1169                 return GPIO_LINE_DIRECTION_OUT;
1170
1171         return GPIO_LINE_DIRECTION_IN;
1172 }
1173
1174 static int ocelot_gpio_direction_input(struct gpio_chip *chip,
1175                                        unsigned int offset)
1176 {
1177         return pinctrl_gpio_direction_input(chip->base + offset);
1178 }
1179
1180 static int ocelot_gpio_direction_output(struct gpio_chip *chip,
1181                                         unsigned int offset, int value)
1182 {
1183         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1184         unsigned int pin = BIT(offset % 32);
1185
1186         if (value)
1187                 regmap_write(info->map, REG(OCELOT_GPIO_OUT_SET, info, offset),
1188                              pin);
1189         else
1190                 regmap_write(info->map, REG(OCELOT_GPIO_OUT_CLR, info, offset),
1191                              pin);
1192
1193         return pinctrl_gpio_direction_output(chip->base + offset);
1194 }
1195
1196 static const struct gpio_chip ocelot_gpiolib_chip = {
1197         .request = gpiochip_generic_request,
1198         .free = gpiochip_generic_free,
1199         .set = ocelot_gpio_set,
1200         .get = ocelot_gpio_get,
1201         .get_direction = ocelot_gpio_get_direction,
1202         .direction_input = ocelot_gpio_direction_input,
1203         .direction_output = ocelot_gpio_direction_output,
1204         .owner = THIS_MODULE,
1205 };
1206
1207 static void ocelot_irq_mask(struct irq_data *data)
1208 {
1209         struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
1210         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1211         unsigned int gpio = irqd_to_hwirq(data);
1212
1213         regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio),
1214                            BIT(gpio % 32), 0);
1215 }
1216
1217 static void ocelot_irq_unmask(struct irq_data *data)
1218 {
1219         struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
1220         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1221         unsigned int gpio = irqd_to_hwirq(data);
1222
1223         regmap_update_bits(info->map, REG(OCELOT_GPIO_INTR_ENA, info, gpio),
1224                            BIT(gpio % 32), BIT(gpio % 32));
1225 }
1226
1227 static void ocelot_irq_ack(struct irq_data *data)
1228 {
1229         struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
1230         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1231         unsigned int gpio = irqd_to_hwirq(data);
1232
1233         regmap_write_bits(info->map, REG(OCELOT_GPIO_INTR, info, gpio),
1234                           BIT(gpio % 32), BIT(gpio % 32));
1235 }
1236
1237 static int ocelot_irq_set_type(struct irq_data *data, unsigned int type);
1238
1239 static struct irq_chip ocelot_eoi_irqchip = {
1240         .name           = "gpio",
1241         .irq_mask       = ocelot_irq_mask,
1242         .irq_eoi        = ocelot_irq_ack,
1243         .irq_unmask     = ocelot_irq_unmask,
1244         .flags          = IRQCHIP_EOI_THREADED | IRQCHIP_EOI_IF_HANDLED,
1245         .irq_set_type   = ocelot_irq_set_type,
1246 };
1247
1248 static struct irq_chip ocelot_irqchip = {
1249         .name           = "gpio",
1250         .irq_mask       = ocelot_irq_mask,
1251         .irq_ack        = ocelot_irq_ack,
1252         .irq_unmask     = ocelot_irq_unmask,
1253         .irq_set_type   = ocelot_irq_set_type,
1254 };
1255
1256 static int ocelot_irq_set_type(struct irq_data *data, unsigned int type)
1257 {
1258         type &= IRQ_TYPE_SENSE_MASK;
1259
1260         if (!(type & (IRQ_TYPE_EDGE_BOTH | IRQ_TYPE_LEVEL_HIGH)))
1261                 return -EINVAL;
1262
1263         if (type & IRQ_TYPE_LEVEL_HIGH)
1264                 irq_set_chip_handler_name_locked(data, &ocelot_eoi_irqchip,
1265                                                  handle_fasteoi_irq, NULL);
1266         if (type & IRQ_TYPE_EDGE_BOTH)
1267                 irq_set_chip_handler_name_locked(data, &ocelot_irqchip,
1268                                                  handle_edge_irq, NULL);
1269
1270         return 0;
1271 }
1272
1273 static void ocelot_irq_handler(struct irq_desc *desc)
1274 {
1275         struct irq_chip *parent_chip = irq_desc_get_chip(desc);
1276         struct gpio_chip *chip = irq_desc_get_handler_data(desc);
1277         struct ocelot_pinctrl *info = gpiochip_get_data(chip);
1278         unsigned int id_reg = OCELOT_GPIO_INTR_IDENT * info->stride;
1279         unsigned int reg = 0, irq, i;
1280         unsigned long irqs;
1281
1282         for (i = 0; i < info->stride; i++) {
1283                 regmap_read(info->map, id_reg + 4 * i, &reg);
1284                 if (!reg)
1285                         continue;
1286
1287                 chained_irq_enter(parent_chip, desc);
1288
1289                 irqs = reg;
1290
1291                 for_each_set_bit(irq, &irqs,
1292                                  min(32U, info->desc->npins - 32 * i))
1293                         generic_handle_domain_irq(chip->irq.domain, irq + 32 * i);
1294
1295                 chained_irq_exit(parent_chip, desc);
1296         }
1297 }
1298
1299 static int ocelot_gpiochip_register(struct platform_device *pdev,
1300                                     struct ocelot_pinctrl *info)
1301 {
1302         struct gpio_chip *gc;
1303         struct gpio_irq_chip *girq;
1304         int irq;
1305
1306         info->gpio_chip = ocelot_gpiolib_chip;
1307
1308         gc = &info->gpio_chip;
1309         gc->ngpio = info->desc->npins;
1310         gc->parent = &pdev->dev;
1311         gc->base = 0;
1312         gc->of_node = info->dev->of_node;
1313         gc->label = "ocelot-gpio";
1314
1315         irq = irq_of_parse_and_map(gc->of_node, 0);
1316         if (irq) {
1317                 girq = &gc->irq;
1318                 girq->chip = &ocelot_irqchip;
1319                 girq->parent_handler = ocelot_irq_handler;
1320                 girq->num_parents = 1;
1321                 girq->parents = devm_kcalloc(&pdev->dev, 1,
1322                                              sizeof(*girq->parents),
1323                                              GFP_KERNEL);
1324                 if (!girq->parents)
1325                         return -ENOMEM;
1326                 girq->parents[0] = irq;
1327                 girq->default_type = IRQ_TYPE_NONE;
1328                 girq->handler = handle_edge_irq;
1329         }
1330
1331         return devm_gpiochip_add_data(&pdev->dev, gc, info);
1332 }
1333
1334 static const struct of_device_id ocelot_pinctrl_of_match[] = {
1335         { .compatible = "mscc,luton-pinctrl", .data = &luton_desc },
1336         { .compatible = "mscc,serval-pinctrl", .data = &serval_desc },
1337         { .compatible = "mscc,ocelot-pinctrl", .data = &ocelot_desc },
1338         { .compatible = "mscc,jaguar2-pinctrl", .data = &jaguar2_desc },
1339         { .compatible = "microchip,sparx5-pinctrl", .data = &sparx5_desc },
1340         {},
1341 };
1342
1343 static int ocelot_pinctrl_probe(struct platform_device *pdev)
1344 {
1345         struct device *dev = &pdev->dev;
1346         struct ocelot_pinctrl *info;
1347         void __iomem *base;
1348         struct resource *res;
1349         int ret;
1350         struct regmap_config regmap_config = {
1351                 .reg_bits = 32,
1352                 .val_bits = 32,
1353                 .reg_stride = 4,
1354         };
1355
1356         info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
1357         if (!info)
1358                 return -ENOMEM;
1359
1360         info->desc = (struct pinctrl_desc *)device_get_match_data(dev);
1361
1362         base = devm_ioremap_resource(dev,
1363                         platform_get_resource(pdev, IORESOURCE_MEM, 0));
1364         if (IS_ERR(base))
1365                 return PTR_ERR(base);
1366
1367         info->stride = 1 + (info->desc->npins - 1) / 32;
1368
1369         regmap_config.max_register = OCELOT_GPIO_SD_MAP * info->stride + 15 * 4;
1370
1371         info->map = devm_regmap_init_mmio(dev, base, &regmap_config);
1372         if (IS_ERR(info->map)) {
1373                 dev_err(dev, "Failed to create regmap\n");
1374                 return PTR_ERR(info->map);
1375         }
1376         dev_set_drvdata(dev, info->map);
1377         info->dev = dev;
1378
1379         /* Pinconf registers */
1380         if (info->desc->confops) {
1381                 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
1382                 base = devm_ioremap_resource(dev, res);
1383                 if (IS_ERR(base))
1384                         dev_dbg(dev, "Failed to ioremap config registers (no extended pinconf)\n");
1385                 else
1386                         info->pincfg = base;
1387         }
1388
1389         ret = ocelot_pinctrl_register(pdev, info);
1390         if (ret)
1391                 return ret;
1392
1393         ret = ocelot_gpiochip_register(pdev, info);
1394         if (ret)
1395                 return ret;
1396
1397         dev_info(dev, "driver registered\n");
1398
1399         return 0;
1400 }
1401
1402 static struct platform_driver ocelot_pinctrl_driver = {
1403         .driver = {
1404                 .name = "pinctrl-ocelot",
1405                 .of_match_table = of_match_ptr(ocelot_pinctrl_of_match),
1406                 .suppress_bind_attrs = true,
1407         },
1408         .probe = ocelot_pinctrl_probe,
1409 };
1410 builtin_platform_driver(ocelot_pinctrl_driver);