drivers/gpu/drm/nouveau/nouveau_connector.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <acpi/button.h>
  28
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include <drm/drmP.h>
  33 #include <drm/drm_atomic_helper.h>
  34 #include <drm/drm_edid.h>
  35 #include <drm/drm_crtc_helper.h>
  36 #include <drm/drm_atomic.h>
  37
  38 #include "nouveau_reg.h"
  39 #include "nouveau_drv.h"
  40 #include "dispnv04/hw.h"
  41 #include "nouveau_acpi.h"
  42
  43 #include "nouveau_display.h"
  44 #include "nouveau_connector.h"
  45 #include "nouveau_encoder.h"
  46 #include "nouveau_crtc.h"
  47
  48 #include <nvif/class.h>
  49 #include <nvif/cl0046.h>
  50 #include <nvif/event.h>
  51
  52 struct drm_display_mode *
  53 nouveau_conn_native_mode(struct drm_connector *connector)
  54 {
  55         const struct drm_connector_helper_funcs *helper = connector->helper_private;
  56         struct nouveau_drm *drm = nouveau_drm(connector->dev);
  57         struct drm_device *dev = connector->dev;
  58         struct drm_display_mode *mode, *largest = NULL;
  59         int high_w = 0, high_h = 0, high_v = 0;
  60
  61         list_for_each_entry(mode, &connector->probed_modes, head) {
  62                 mode->vrefresh = drm_mode_vrefresh(mode);
  63                 if (helper->mode_valid(connector, mode) != MODE_OK ||
  64                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
  65                         continue;
  66
  67                 /* Use preferred mode if there is one.. */
  68                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
  69                         NV_DEBUG(drm, "native mode from preferred\n");
  70                         return drm_mode_duplicate(dev, mode);
  71                 }
  72
  73                 /* Otherwise, take the resolution with the largest width, then
  74                  * height, then vertical refresh
  75                  */
  76                 if (mode->hdisplay < high_w)
  77                         continue;
  78
  79                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
  80                         continue;
  81
  82                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
  83                     mode->vrefresh < high_v)
  84                         continue;
  85
  86                 high_w = mode->hdisplay;
  87                 high_h = mode->vdisplay;
  88                 high_v = mode->vrefresh;
  89                 largest = mode;
  90         }
  91
  92         NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
  93                       high_w, high_h, high_v);
  94         return largest ? drm_mode_duplicate(dev, largest) : NULL;
  95 }
  96
  97 int
  98 nouveau_conn_atomic_get_property(struct drm_connector *connector,
  99                                  const struct drm_connector_state *state,
 100                                  struct drm_property *property, u64 *val)
 101 {
 102         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 103         struct nouveau_display *disp = nouveau_display(connector->dev);
 104         struct drm_device *dev = connector->dev;
 105
 106         if (property == dev->mode_config.scaling_mode_property)
 107                 *val = asyc->scaler.mode;
 108         else if (property == disp->underscan_property)
 109                 *val = asyc->scaler.underscan.mode;
 110         else if (property == disp->underscan_hborder_property)
 111                 *val = asyc->scaler.underscan.hborder;
 112         else if (property == disp->underscan_vborder_property)
 113                 *val = asyc->scaler.underscan.vborder;
 114         else if (property == disp->dithering_mode)
 115                 *val = asyc->dither.mode;
 116         else if (property == disp->dithering_depth)
 117                 *val = asyc->dither.depth;
 118         else if (property == disp->vibrant_hue_property)
 119                 *val = asyc->procamp.vibrant_hue;
 120         else if (property == disp->color_vibrance_property)
 121                 *val = asyc->procamp.color_vibrance;
 122         else
 123                 return -EINVAL;
 124
 125         return 0;
 126 }
 127
 128 int
 129 nouveau_conn_atomic_set_property(struct drm_connector *connector,
 130                                  struct drm_connector_state *state,
 131                                  struct drm_property *property, u64 val)
 132 {
 133         struct drm_device *dev = connector->dev;
 134         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 135         struct nouveau_display *disp = nouveau_display(dev);
 136
 137         if (property == dev->mode_config.scaling_mode_property) {
 138                 switch (val) {
 139                 case DRM_MODE_SCALE_NONE:
 140                         /* We allow 'None' for EDID modes, even on a fixed
 141                          * panel (some exist with support for lower refresh
 142                          * rates, which people might want to use for power-
 143                          * saving purposes).
 144                          *
 145                          * Non-EDID modes will force the use of GPU scaling
 146                          * to the native mode regardless of this setting.
 147                          */
 148                         switch (connector->connector_type) {
 149                         case DRM_MODE_CONNECTOR_LVDS:
 150                         case DRM_MODE_CONNECTOR_eDP:
 151                                 /* ... except prior to G80, where the code
 152                                  * doesn't support such things.
 153                                  */
 154                                 if (disp->disp.object.oclass < NV50_DISP)
 155                                         return -EINVAL;
 156                                 break;
 157                         default:
 158                                 break;
 159                         }
 160                 case DRM_MODE_SCALE_FULLSCREEN:
 161                 case DRM_MODE_SCALE_CENTER:
 162                 case DRM_MODE_SCALE_ASPECT:
 163                         break;
 164                 default:
 165                         return -EINVAL;
 166                 }
 167
 168                 if (asyc->scaler.mode != val) {
 169                         asyc->scaler.mode = val;
 170                         asyc->set.scaler = true;
 171                 }
 172         } else
 173         if (property == disp->underscan_property) {
 174                 if (asyc->scaler.underscan.mode != val) {
 175                         asyc->scaler.underscan.mode = val;
 176                         asyc->set.scaler = true;
 177                 }
 178         } else
 179         if (property == disp->underscan_hborder_property) {
 180                 if (asyc->scaler.underscan.hborder != val) {
 181                         asyc->scaler.underscan.hborder = val;
 182                         asyc->set.scaler = true;
 183                 }
 184         } else
 185         if (property == disp->underscan_vborder_property) {
 186                 if (asyc->scaler.underscan.vborder != val) {
 187                         asyc->scaler.underscan.vborder = val;
 188                         asyc->set.scaler = true;
 189                 }
 190         } else
 191         if (property == disp->dithering_mode) {
 192                 if (asyc->dither.mode != val) {
 193                         asyc->dither.mode = val;
 194                         asyc->set.dither = true;
 195                 }
 196         } else
 197         if (property == disp->dithering_depth) {
 198                 if (asyc->dither.mode != val) {
 199                         asyc->dither.depth = val;
 200                         asyc->set.dither = true;
 201                 }
 202         } else
 203         if (property == disp->vibrant_hue_property) {
 204                 if (asyc->procamp.vibrant_hue != val) {
 205                         asyc->procamp.vibrant_hue = val;
 206                         asyc->set.procamp = true;
 207                 }
 208         } else
 209         if (property == disp->color_vibrance_property) {
 210                 if (asyc->procamp.color_vibrance != val) {
 211                         asyc->procamp.color_vibrance = val;
 212                         asyc->set.procamp = true;
 213                 }
 214         } else {
 215                 return -EINVAL;
 216         }
 217
 218         return 0;
 219 }
 220
 221 void
 222 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
 223                                   struct drm_connector_state *state)
 224 {
 225         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 226         __drm_atomic_helper_connector_destroy_state(&asyc->state);
 227         kfree(asyc);
 228 }
 229
 230 struct drm_connector_state *
 231 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
 232 {
 233         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 234         struct nouveau_conn_atom *asyc;
 235         if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
 236                 return NULL;
 237         __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
 238         asyc->dither = armc->dither;
 239         asyc->scaler = armc->scaler;
 240         asyc->procamp = armc->procamp;
 241         asyc->set.mask = 0;
 242         return &asyc->state;
 243 }
 244
 245 void
 246 nouveau_conn_reset(struct drm_connector *connector)
 247 {
 248         struct nouveau_conn_atom *asyc;
 249
 250         if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 251                 return;
 252
 253         if (connector->state)
 254                 __drm_atomic_helper_connector_destroy_state(connector->state);
 255         __drm_atomic_helper_connector_reset(connector, &asyc->state);
 256         asyc->dither.mode = DITHERING_MODE_AUTO;
 257         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 258         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 259         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 260         asyc->procamp.color_vibrance = 150;
 261         asyc->procamp.vibrant_hue = 90;
 262
 263         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 264                 switch (connector->connector_type) {
 265                 case DRM_MODE_CONNECTOR_LVDS:
 266                         /* See note in nouveau_conn_atomic_set_property(). */
 267                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 268                         break;
 269                 default:
 270                         break;
 271                 }
 272         }
 273 }
 274
 275 void
 276 nouveau_conn_attach_properties(struct drm_connector *connector)
 277 {
 278         struct drm_device *dev = connector->dev;
 279         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 280         struct nouveau_display *disp = nouveau_display(dev);
 281
 282         /* Init DVI-I specific properties. */
 283         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 284                 drm_object_attach_property(&connector->base, dev->mode_config.
 285                                            dvi_i_subconnector_property, 0);
 286
 287         /* Add overscan compensation options to digital outputs. */
 288         if (disp->underscan_property &&
 289             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 290              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 291              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 292              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 293                 drm_object_attach_property(&connector->base,
 294                                            disp->underscan_property,
 295                                            UNDERSCAN_OFF);
 296                 drm_object_attach_property(&connector->base,
 297                                            disp->underscan_hborder_property, 0);
 298                 drm_object_attach_property(&connector->base,
 299                                            disp->underscan_vborder_property, 0);
 300         }
 301
 302         /* Add hue and saturation options. */
 303         if (disp->vibrant_hue_property)
 304                 drm_object_attach_property(&connector->base,
 305                                            disp->vibrant_hue_property,
 306                                            armc->procamp.vibrant_hue);
 307         if (disp->color_vibrance_property)
 308                 drm_object_attach_property(&connector->base,
 309                                            disp->color_vibrance_property,
 310                                            armc->procamp.color_vibrance);
 311
 312         /* Scaling mode property. */
 313         switch (connector->connector_type) {
 314         case DRM_MODE_CONNECTOR_TV:
 315                 break;
 316         case DRM_MODE_CONNECTOR_VGA:
 317                 if (disp->disp.object.oclass < NV50_DISP)
 318                         break; /* Can only scale on DFPs. */
 319                 /* Fall-through. */
 320         default:
 321                 drm_object_attach_property(&connector->base, dev->mode_config.
 322                                            scaling_mode_property,
 323                                            armc->scaler.mode);
 324                 break;
 325         }
 326
 327         /* Dithering properties. */
 328         switch (connector->connector_type) {
 329         case DRM_MODE_CONNECTOR_TV:
 330         case DRM_MODE_CONNECTOR_VGA:
 331                 break;
 332         default:
 333                 if (disp->dithering_mode) {
 334                         drm_object_attach_property(&connector->base,
 335                                                    disp->dithering_mode,
 336                                                    armc->dither.mode);
 337                 }
 338                 if (disp->dithering_depth) {
 339                         drm_object_attach_property(&connector->base,
 340                                                    disp->dithering_depth,
 341                                                    armc->dither.depth);
 342                 }
 343                 break;
 344         }
 345 }
 346
 347 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 348 int nouveau_tv_disable = 0;
 349 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 350
 351 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 352 int nouveau_ignorelid = 0;
 353 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 354
 355 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 356 int nouveau_duallink = 1;
 357 module_param_named(duallink, nouveau_duallink, int, 0400);
 358
 359 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 360 int nouveau_hdmimhz = 0;
 361 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 362
 363 struct nouveau_encoder *
 364 find_encoder(struct drm_connector *connector, int type)
 365 {
 366         struct nouveau_encoder *nv_encoder;
 367         struct drm_encoder *enc;
 368         int i;
 369
 370         drm_connector_for_each_possible_encoder(connector, enc, i) {
 371                 nv_encoder = nouveau_encoder(enc);
 372
 373                 if (type == DCB_OUTPUT_ANY ||
 374                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 375                         return nv_encoder;
 376         }
 377
 378         return NULL;
 379 }
 380
 381 struct nouveau_connector *
 382 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 383 {
 384         struct drm_device *dev = to_drm_encoder(encoder)->dev;
 385         struct drm_connector *drm_connector;
 386
 387         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 388                 if (drm_connector->encoder == to_drm_encoder(encoder))
 389                         return nouveau_connector(drm_connector);
 390         }
 391
 392         return NULL;
 393 }
 394
 395 static void
 396 nouveau_connector_destroy(struct drm_connector *connector)
 397 {
 398         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 399         nvif_notify_fini(&nv_connector->hpd);
 400         kfree(nv_connector->edid);
 401         drm_connector_unregister(connector);
 402         drm_connector_cleanup(connector);
 403         if (nv_connector->aux.transfer)
 404                 drm_dp_aux_unregister(&nv_connector->aux);
 405         kfree(connector);
 406 }
 407
 408 static struct nouveau_encoder *
 409 nouveau_connector_ddc_detect(struct drm_connector *connector)
 410 {
 411         struct drm_device *dev = connector->dev;
 412         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 413         struct nouveau_drm *drm = nouveau_drm(dev);
 414         struct nvkm_gpio *gpio = nvxx_gpio(&drm->client.device);
 415         struct nouveau_encoder *nv_encoder = NULL;
 416         struct drm_encoder *encoder;
 417         int i, panel = -ENODEV;
 418
 419         /* eDP panels need powering on by us (if the VBIOS doesn't default it
 420          * to on) before doing any AUX channel transactions.  LVDS panel power
 421          * is handled by the SOR itself, and not required for LVDS DDC.
 422          */
 423         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 424                 panel = nvkm_gpio_get(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff);
 425                 if (panel == 0) {
 426                         nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, 1);
 427                         msleep(300);
 428                 }
 429         }
 430
 431         drm_connector_for_each_possible_encoder(connector, encoder, i) {
 432                 nv_encoder = nouveau_encoder(encoder);
 433
 434                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
 435                         int ret = nouveau_dp_detect(nv_encoder);
 436                         if (ret == NOUVEAU_DP_MST)
 437                                 return NULL;
 438                         if (ret == NOUVEAU_DP_SST)
 439                                 break;
 440                 } else
 441                 if ((vga_switcheroo_handler_flags() &
 442                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 443                     nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 444                     nv_encoder->i2c) {
 445                         int ret;
 446                         vga_switcheroo_lock_ddc(dev->pdev);
 447                         ret = nvkm_probe_i2c(nv_encoder->i2c, 0x50);
 448                         vga_switcheroo_unlock_ddc(dev->pdev);
 449                         if (ret)
 450                                 break;
 451                 } else
 452                 if (nv_encoder->i2c) {
 453                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 454                                 break;
 455                 }
 456         }
 457
 458         /* eDP panel not detected, restore panel power GPIO to previous
 459          * state to avoid confusing the SOR for other output types.
 460          */
 461         if (!nv_encoder && panel == 0)
 462                 nvkm_gpio_set(gpio, 0, DCB_GPIO_PANEL_POWER, 0xff, panel);
 463
 464         return nv_encoder;
 465 }
 466
 467 static struct nouveau_encoder *
 468 nouveau_connector_of_detect(struct drm_connector *connector)
 469 {
 470 #ifdef __powerpc__
 471         struct drm_device *dev = connector->dev;
 472         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 473         struct nouveau_encoder *nv_encoder;
 474         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 475
 476         if (!dn ||
 477             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 478               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 479                 return NULL;
 480
 481         for_each_child_of_node(dn, cn) {
 482                 const char *name = of_get_property(cn, "name", NULL);
 483                 const void *edid = of_get_property(cn, "EDID", NULL);
 484                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 485
 486                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 487                         nv_connector->edid =
 488                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 489                         of_node_put(cn);
 490                         return nv_encoder;
 491                 }
 492         }
 493 #endif
 494         return NULL;
 495 }
 496
 497 static void
 498 nouveau_connector_set_encoder(struct drm_connector *connector,
 499                               struct nouveau_encoder *nv_encoder)
 500 {
 501         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 502         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 503         struct drm_device *dev = connector->dev;
 504
 505         if (nv_connector->detected_encoder == nv_encoder)
 506                 return;
 507         nv_connector->detected_encoder = nv_encoder;
 508
 509         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 510                 connector->interlace_allowed = true;
 511                 connector->doublescan_allowed = true;
 512         } else
 513         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 514             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 515                 connector->doublescan_allowed = false;
 516                 connector->interlace_allowed = false;
 517         } else {
 518                 connector->doublescan_allowed = true;
 519                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 520                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 521                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
 522                      (dev->pdev->device & 0x0ff0) != 0x0150))
 523                         /* HW is broken */
 524                         connector->interlace_allowed = false;
 525                 else
 526                         connector->interlace_allowed = true;
 527         }
 528
 529         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 530                 drm_object_property_set_value(&connector->base,
 531                         dev->mode_config.dvi_i_subconnector_property,
 532                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 533                         DRM_MODE_SUBCONNECTOR_DVID :
 534                         DRM_MODE_SUBCONNECTOR_DVIA);
 535         }
 536 }
 537
 538 static enum drm_connector_status
 539 nouveau_connector_detect(struct drm_connector *connector, bool force)
 540 {
 541         struct drm_device *dev = connector->dev;
 542         struct nouveau_drm *drm = nouveau_drm(dev);
 543         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 544         struct nouveau_encoder *nv_encoder = NULL;
 545         struct nouveau_encoder *nv_partner;
 546         struct i2c_adapter *i2c;
 547         int type;
 548         int ret;
 549         enum drm_connector_status conn_status = connector_status_disconnected;
 550
 551         /* Cleanup the previous EDID block. */
 552         if (nv_connector->edid) {
 553                 drm_connector_update_edid_property(connector, NULL);
 554                 kfree(nv_connector->edid);
 555                 nv_connector->edid = NULL;
 556         }
 557
 558         /* Outputs are only polled while runtime active, so acquiring a
 559          * runtime PM ref here is unnecessary (and would deadlock upon
 560          * runtime suspend because it waits for polling to finish).
 561          */
 562         if (!drm_kms_helper_is_poll_worker()) {
 563                 ret = pm_runtime_get_sync(connector->dev->dev);
 564                 if (ret < 0 && ret != -EACCES)
 565                         return conn_status;
 566         }
 567
 568         nv_encoder = nouveau_connector_ddc_detect(connector);
 569         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 570                 if ((vga_switcheroo_handler_flags() &
 571                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 572                     nv_connector->type == DCB_CONNECTOR_LVDS)
 573                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 574                                                                      i2c);
 575                 else
 576                         nv_connector->edid = drm_get_edid(connector, i2c);
 577
 578                 drm_connector_update_edid_property(connector,
 579                                                         nv_connector->edid);
 580                 if (!nv_connector->edid) {
 581                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 582                                  connector->name);
 583                         goto detect_analog;
 584                 }
 585
 586                 /* Override encoder type for DVI-I based on whether EDID
 587                  * says the display is digital or analog, both use the
 588                  * same i2c channel so the value returned from ddc_detect
 589                  * isn't necessarily correct.
 590                  */
 591                 nv_partner = NULL;
 592                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 593                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 594                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 595                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 596
 597                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 598                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 599                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 600                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 601                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 602                                 type = DCB_OUTPUT_TMDS;
 603                         else
 604                                 type = DCB_OUTPUT_ANALOG;
 605
 606                         nv_encoder = find_encoder(connector, type);
 607                 }
 608
 609                 nouveau_connector_set_encoder(connector, nv_encoder);
 610                 conn_status = connector_status_connected;
 611                 goto out;
 612         }
 613
 614         nv_encoder = nouveau_connector_of_detect(connector);
 615         if (nv_encoder) {
 616                 nouveau_connector_set_encoder(connector, nv_encoder);
 617                 conn_status = connector_status_connected;
 618                 goto out;
 619         }
 620
 621 detect_analog:
 622         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 623         if (!nv_encoder && !nouveau_tv_disable)
 624                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 625         if (nv_encoder && force) {
 626                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 627                 const struct drm_encoder_helper_funcs *helper =
 628                                                 encoder->helper_private;
 629
 630                 if (helper->detect(encoder, connector) ==
 631                                                 connector_status_connected) {
 632                         nouveau_connector_set_encoder(connector, nv_encoder);
 633                         conn_status = connector_status_connected;
 634                         goto out;
 635                 }
 636
 637         }
 638
 639  out:
 640
 641         if (!drm_kms_helper_is_poll_worker()) {
 642                 pm_runtime_mark_last_busy(connector->dev->dev);
 643                 pm_runtime_put_autosuspend(connector->dev->dev);
 644         }
 645
 646         return conn_status;
 647 }
 648
 649 static enum drm_connector_status
 650 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 651 {
 652         struct drm_device *dev = connector->dev;
 653         struct nouveau_drm *drm = nouveau_drm(dev);
 654         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 655         struct nouveau_encoder *nv_encoder = NULL;
 656         enum drm_connector_status status = connector_status_disconnected;
 657
 658         /* Cleanup the previous EDID block. */
 659         if (nv_connector->edid) {
 660                 drm_connector_update_edid_property(connector, NULL);
 661                 kfree(nv_connector->edid);
 662                 nv_connector->edid = NULL;
 663         }
 664
 665         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 666         if (!nv_encoder)
 667                 return connector_status_disconnected;
 668
 669         /* Try retrieving EDID via DDC */
 670         if (!drm->vbios.fp_no_ddc) {
 671                 status = nouveau_connector_detect(connector, force);
 672                 if (status == connector_status_connected)
 673                         goto out;
 674         }
 675
 676         /* On some laptops (Sony, i'm looking at you) there appears to
 677          * be no direct way of accessing the panel's EDID.  The only
 678          * option available to us appears to be to ask ACPI for help..
 679          *
 680          * It's important this check's before trying straps, one of the
 681          * said manufacturer's laptops are configured in such a way
 682          * the nouveau decides an entry in the VBIOS FP mode table is
 683          * valid - it's not (rh#613284)
 684          */
 685         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 686                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 687                         status = connector_status_connected;
 688                         goto out;
 689                 }
 690         }
 691
 692         /* If no EDID found above, and the VBIOS indicates a hardcoded
 693          * modeline is avalilable for the panel, set it as the panel's
 694          * native mode and exit.
 695          */
 696         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 697             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 698                 status = connector_status_connected;
 699                 goto out;
 700         }
 701
 702         /* Still nothing, some VBIOS images have a hardcoded EDID block
 703          * stored for the panel stored in them.
 704          */
 705         if (!drm->vbios.fp_no_ddc) {
 706                 struct edid *edid =
 707                         (struct edid *)nouveau_bios_embedded_edid(dev);
 708                 if (edid) {
 709                         nv_connector->edid =
 710                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 711                         if (nv_connector->edid)
 712                                 status = connector_status_connected;
 713                 }
 714         }
 715
 716 out:
 717 #if defined(CONFIG_ACPI_BUTTON) || \
 718         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 719         if (status == connector_status_connected &&
 720             !nouveau_ignorelid && !acpi_lid_open())
 721                 status = connector_status_unknown;
 722 #endif
 723
 724         drm_connector_update_edid_property(connector, nv_connector->edid);
 725         nouveau_connector_set_encoder(connector, nv_encoder);
 726         return status;
 727 }
 728
 729 static void
 730 nouveau_connector_force(struct drm_connector *connector)
 731 {
 732         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 733         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 734         struct nouveau_encoder *nv_encoder;
 735         int type;
 736
 737         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 738                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 739                         type = DCB_OUTPUT_TMDS;
 740                 else
 741                         type = DCB_OUTPUT_ANALOG;
 742         } else
 743                 type = DCB_OUTPUT_ANY;
 744
 745         nv_encoder = find_encoder(connector, type);
 746         if (!nv_encoder) {
 747                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 748                          connector->name);
 749                 connector->status = connector_status_disconnected;
 750                 return;
 751         }
 752
 753         nouveau_connector_set_encoder(connector, nv_encoder);
 754 }
 755
 756 static int
 757 nouveau_connector_set_property(struct drm_connector *connector,
 758                                struct drm_property *property, uint64_t value)
 759 {
 760         struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
 761         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 762         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 763         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 764         int ret;
 765
 766         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 767                                                     &asyc->state,
 768                                                     property, value);
 769         if (ret) {
 770                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 771                         return get_slave_funcs(encoder)->set_property(
 772                                 encoder, connector, property, value);
 773                 return ret;
 774         }
 775
 776         nv_connector->scaling_mode = asyc->scaler.mode;
 777         nv_connector->dithering_mode = asyc->dither.mode;
 778
 779         if (connector->encoder && connector->encoder->crtc) {
 780                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 781                                               &connector->encoder->crtc->mode,
 782                                                connector->encoder->crtc->x,
 783                                                connector->encoder->crtc->y,
 784                                                NULL);
 785                 if (!ret)
 786                         return -EINVAL;
 787         }
 788
 789         return 0;
 790 }
 791
 792 struct moderec {
 793         int hdisplay;
 794         int vdisplay;
 795 };
 796
 797 static struct moderec scaler_modes[] = {
 798         { 1920, 1200 },
 799         { 1920, 1080 },
 800         { 1680, 1050 },
 801         { 1600, 1200 },
 802         { 1400, 1050 },
 803         { 1280, 1024 },
 804         { 1280, 960 },
 805         { 1152, 864 },
 806         { 1024, 768 },
 807         { 800, 600 },
 808         { 720, 400 },
 809         { 640, 480 },
 810         { 640, 400 },
 811         { 640, 350 },
 812         {}
 813 };
 814
 815 static int
 816 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 817 {
 818         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 819         struct drm_display_mode *native = nv_connector->native_mode, *m;
 820         struct drm_device *dev = connector->dev;
 821         struct moderec *mode = &scaler_modes[0];
 822         int modes = 0;
 823
 824         if (!native)
 825                 return 0;
 826
 827         while (mode->hdisplay) {
 828                 if (mode->hdisplay <= native->hdisplay &&
 829                     mode->vdisplay <= native->vdisplay &&
 830                     (mode->hdisplay != native->hdisplay ||
 831                      mode->vdisplay != native->vdisplay)) {
 832                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 833                                          drm_mode_vrefresh(native), false,
 834                                          false, false);
 835                         if (!m)
 836                                 continue;
 837
 838                         drm_mode_probed_add(connector, m);
 839                         modes++;
 840                 }
 841
 842                 mode++;
 843         }
 844
 845         return modes;
 846 }
 847
 848 static void
 849 nouveau_connector_detect_depth(struct drm_connector *connector)
 850 {
 851         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 852         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 853         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 854         struct nvbios *bios = &drm->vbios;
 855         struct drm_display_mode *mode = nv_connector->native_mode;
 856         bool duallink;
 857
 858         /* if the edid is feeling nice enough to provide this info, use it */
 859         if (nv_connector->edid && connector->display_info.bpc)
 860                 return;
 861
 862         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 863         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 864                 connector->display_info.bpc = 6;
 865                 return;
 866         }
 867
 868         /* we're out of options unless we're LVDS, default to 8bpc */
 869         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 870                 connector->display_info.bpc = 8;
 871                 return;
 872         }
 873
 874         connector->display_info.bpc = 6;
 875
 876         /* LVDS: panel straps */
 877         if (bios->fp_no_ddc) {
 878                 if (bios->fp.if_is_24bit)
 879                         connector->display_info.bpc = 8;
 880                 return;
 881         }
 882
 883         /* LVDS: DDC panel, need to first determine the number of links to
 884          * know which if_is_24bit flag to check...
 885          */
 886         if (nv_connector->edid &&
 887             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 888                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 889         else
 890                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 891
 892         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 893             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 894                 connector->display_info.bpc = 8;
 895 }
 896
 897 static int
 898 nouveau_connector_get_modes(struct drm_connector *connector)
 899 {
 900         struct drm_device *dev = connector->dev;
 901         struct nouveau_drm *drm = nouveau_drm(dev);
 902         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 903         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 904         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 905         int ret = 0;
 906
 907         /* destroy the native mode, the attached monitor could have changed.
 908          */
 909         if (nv_connector->native_mode) {
 910                 drm_mode_destroy(dev, nv_connector->native_mode);
 911                 nv_connector->native_mode = NULL;
 912         }
 913
 914         if (nv_connector->edid)
 915                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 916         else
 917         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 918             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 919              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 920                 struct drm_display_mode mode;
 921
 922                 nouveau_bios_fp_mode(dev, &mode);
 923                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 924         }
 925
 926         /* Determine display colour depth for everything except LVDS now,
 927          * DP requires this before mode_valid() is called.
 928          */
 929         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 930                 nouveau_connector_detect_depth(connector);
 931
 932         /* Find the native mode if this is a digital panel, if we didn't
 933          * find any modes through DDC previously add the native mode to
 934          * the list of modes.
 935          */
 936         if (!nv_connector->native_mode)
 937                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 938         if (ret == 0 && nv_connector->native_mode) {
 939                 struct drm_display_mode *mode;
 940
 941                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 942                 drm_mode_probed_add(connector, mode);
 943                 ret = 1;
 944         }
 945
 946         /* Determine LVDS colour depth, must happen after determining
 947          * "native" mode as some VBIOS tables require us to use the
 948          * pixel clock as part of the lookup...
 949          */
 950         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 951                 nouveau_connector_detect_depth(connector);
 952
 953         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 954                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 955
 956         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 957             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 958             nv_connector->type == DCB_CONNECTOR_eDP)
 959                 ret += nouveau_connector_scaler_modes_add(connector);
 960
 961         return ret;
 962 }
 963
 964 static unsigned
 965 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 966 {
 967         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 968         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 969         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 970
 971         if (hdmi) {
 972                 if (nouveau_hdmimhz > 0)
 973                         return nouveau_hdmimhz * 1000;
 974                 /* Note: these limits are conservative, some Fermi's
 975                  * can do 297 MHz. Unclear how this can be determined.
 976                  */
 977                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
 978                         return 297000;
 979                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
 980                         return 225000;
 981         }
 982         if (dcb->location != DCB_LOC_ON_CHIP ||
 983             drm->client.device.info.chipset >= 0x46)
 984                 return 165000;
 985         else if (drm->client.device.info.chipset >= 0x40)
 986                 return 155000;
 987         else if (drm->client.device.info.chipset >= 0x18)
 988                 return 135000;
 989         else
 990                 return 112000;
 991 }
 992
 993 static enum drm_mode_status
 994 nouveau_connector_mode_valid(struct drm_connector *connector,
 995                              struct drm_display_mode *mode)
 996 {
 997         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 998         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 999         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1000         unsigned min_clock = 25000, max_clock = min_clock;
1001         unsigned clock = mode->clock;
1002         bool hdmi;
1003
1004         switch (nv_encoder->dcb->type) {
1005         case DCB_OUTPUT_LVDS:
1006                 if (nv_connector->native_mode &&
1007                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1008                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1009                         return MODE_PANEL;
1010
1011                 min_clock = 0;
1012                 max_clock = 400000;
1013                 break;
1014         case DCB_OUTPUT_TMDS:
1015                 hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1016                 max_clock = get_tmds_link_bandwidth(connector, hdmi);
1017                 if (!hdmi && nouveau_duallink &&
1018                     nv_encoder->dcb->duallink_possible)
1019                         max_clock *= 2;
1020                 break;
1021         case DCB_OUTPUT_ANALOG:
1022                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1023                 if (!max_clock)
1024                         max_clock = 350000;
1025                 break;
1026         case DCB_OUTPUT_TV:
1027                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1028         case DCB_OUTPUT_DP:
1029                 max_clock  = nv_encoder->dp.link_nr;
1030                 max_clock *= nv_encoder->dp.link_bw;
1031                 clock = clock * (connector->display_info.bpc * 3) / 10;
1032                 break;
1033         default:
1034                 BUG();
1035                 return MODE_BAD;
1036         }
1037
1038         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1039                 clock *= 2;
1040
1041         if (clock < min_clock)
1042                 return MODE_CLOCK_LOW;
1043
1044         if (clock > max_clock)
1045                 return MODE_CLOCK_HIGH;
1046
1047         return MODE_OK;
1048 }
1049
1050 static struct drm_encoder *
1051 nouveau_connector_best_encoder(struct drm_connector *connector)
1052 {
1053         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1054
1055         if (nv_connector->detected_encoder)
1056                 return to_drm_encoder(nv_connector->detected_encoder);
1057
1058         return NULL;
1059 }
1060
1061 static const struct drm_connector_helper_funcs
1062 nouveau_connector_helper_funcs = {
1063         .get_modes = nouveau_connector_get_modes,
1064         .mode_valid = nouveau_connector_mode_valid,
1065         .best_encoder = nouveau_connector_best_encoder,
1066 };
1067
1068 static const struct drm_connector_funcs
1069 nouveau_connector_funcs = {
1070         .dpms = drm_helper_connector_dpms,
1071         .reset = nouveau_conn_reset,
1072         .detect = nouveau_connector_detect,
1073         .force = nouveau_connector_force,
1074         .fill_modes = drm_helper_probe_single_connector_modes,
1075         .set_property = nouveau_connector_set_property,
1076         .destroy = nouveau_connector_destroy,
1077         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1078         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1079         .atomic_set_property = nouveau_conn_atomic_set_property,
1080         .atomic_get_property = nouveau_conn_atomic_get_property,
1081 };
1082
1083 static const struct drm_connector_funcs
1084 nouveau_connector_funcs_lvds = {
1085         .dpms = drm_helper_connector_dpms,
1086         .reset = nouveau_conn_reset,
1087         .detect = nouveau_connector_detect_lvds,
1088         .force = nouveau_connector_force,
1089         .fill_modes = drm_helper_probe_single_connector_modes,
1090         .set_property = nouveau_connector_set_property,
1091         .destroy = nouveau_connector_destroy,
1092         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1093         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1094         .atomic_set_property = nouveau_conn_atomic_set_property,
1095         .atomic_get_property = nouveau_conn_atomic_get_property,
1096 };
1097
1098 static int
1099 nouveau_connector_hotplug(struct nvif_notify *notify)
1100 {
1101         struct nouveau_connector *nv_connector =
1102                 container_of(notify, typeof(*nv_connector), hpd);
1103         struct drm_connector *connector = &nv_connector->base;
1104         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1105         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1106         const char *name = connector->name;
1107         struct nouveau_encoder *nv_encoder;
1108
1109         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1110                 NV_DEBUG(drm, "service %s\n", name);
1111                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1112                         nv50_mstm_service(nv_encoder->dp.mstm);
1113         } else {
1114                 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1115
1116                 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1117                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1118                         if (!plugged)
1119                                 nv50_mstm_remove(nv_encoder->dp.mstm);
1120                 }
1121
1122                 drm_helper_hpd_irq_event(connector->dev);
1123         }
1124
1125         return NVIF_NOTIFY_KEEP;
1126 }
1127
1128 static ssize_t
1129 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1130 {
1131         struct nouveau_connector *nv_connector =
1132                 container_of(obj, typeof(*nv_connector), aux);
1133         struct nouveau_encoder *nv_encoder;
1134         struct nvkm_i2c_aux *aux;
1135         u8 size = msg->size;
1136         int ret;
1137
1138         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1139         if (!nv_encoder || !(aux = nv_encoder->aux))
1140                 return -ENODEV;
1141         if (WARN_ON(msg->size > 16))
1142                 return -E2BIG;
1143
1144         ret = nvkm_i2c_aux_acquire(aux);
1145         if (ret)
1146                 return ret;
1147
1148         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1149                                 msg->buffer, &size);
1150         nvkm_i2c_aux_release(aux);
1151         if (ret >= 0) {
1152                 msg->reply = ret;
1153                 return size;
1154         }
1155
1156         return ret;
1157 }
1158
1159 static int
1160 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1161 {
1162         switch (dcb) {
1163         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1164         case DCB_CONNECTOR_TV_0     :
1165         case DCB_CONNECTOR_TV_1     :
1166         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1167         case DCB_CONNECTOR_DMS59_0  :
1168         case DCB_CONNECTOR_DMS59_1  :
1169         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1170         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1171         case DCB_CONNECTOR_LVDS     :
1172         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1173         case DCB_CONNECTOR_DMS59_DP0:
1174         case DCB_CONNECTOR_DMS59_DP1:
1175         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1176         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1177         case DCB_CONNECTOR_HDMI_0   :
1178         case DCB_CONNECTOR_HDMI_1   :
1179         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1180         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1181         default:
1182                 break;
1183         }
1184
1185         return DRM_MODE_CONNECTOR_Unknown;
1186 }
1187
1188 struct drm_connector *
1189 nouveau_connector_create(struct drm_device *dev, int index)
1190 {
1191         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1192         struct nouveau_drm *drm = nouveau_drm(dev);
1193         struct nouveau_display *disp = nouveau_display(dev);
1194         struct nouveau_connector *nv_connector = NULL;
1195         struct drm_connector *connector;
1196         struct drm_connector_list_iter conn_iter;
1197         int type, ret = 0;
1198         bool dummy;
1199
1200         drm_connector_list_iter_begin(dev, &conn_iter);
1201         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1202                 nv_connector = nouveau_connector(connector);
1203                 if (nv_connector->index == index) {
1204                         drm_connector_list_iter_end(&conn_iter);
1205                         return connector;
1206                 }
1207         }
1208         drm_connector_list_iter_end(&conn_iter);
1209
1210         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1211         if (!nv_connector)
1212                 return ERR_PTR(-ENOMEM);
1213
1214         connector = &nv_connector->base;
1215         nv_connector->index = index;
1216
1217         /* attempt to parse vbios connector type and hotplug gpio */
1218         nv_connector->dcb = olddcb_conn(dev, index);
1219         if (nv_connector->dcb) {
1220                 u32 entry = ROM16(nv_connector->dcb[0]);
1221                 if (olddcb_conntab(dev)[3] >= 4)
1222                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1223
1224                 nv_connector->type = nv_connector->dcb[0];
1225                 if (drm_conntype_from_dcb(nv_connector->type) ==
1226                                           DRM_MODE_CONNECTOR_Unknown) {
1227                         NV_WARN(drm, "unknown connector type %02x\n",
1228                                 nv_connector->type);
1229                         nv_connector->type = DCB_CONNECTOR_NONE;
1230                 }
1231
1232                 /* Gigabyte NX85T */
1233                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1234                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1235                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1236                 }
1237
1238                 /* Gigabyte GV-NX86T512H */
1239                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1240                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1241                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1242                 }
1243         } else {
1244                 nv_connector->type = DCB_CONNECTOR_NONE;
1245         }
1246
1247         /* no vbios data, or an unknown dcb connector type - attempt to
1248          * figure out something suitable ourselves
1249          */
1250         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1251                 struct nouveau_drm *drm = nouveau_drm(dev);
1252                 struct dcb_table *dcbt = &drm->vbios.dcb;
1253                 u32 encoders = 0;
1254                 int i;
1255
1256                 for (i = 0; i < dcbt->entries; i++) {
1257                         if (dcbt->entry[i].connector == nv_connector->index)
1258                                 encoders |= (1 << dcbt->entry[i].type);
1259                 }
1260
1261                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1262                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1263                                 nv_connector->type = DCB_CONNECTOR_DP;
1264                         else
1265                                 nv_connector->type = DCB_CONNECTOR_eDP;
1266                 } else
1267                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1268                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1269                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1270                         else
1271                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1272                 } else
1273                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1274                         nv_connector->type = DCB_CONNECTOR_VGA;
1275                 } else
1276                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1277                         nv_connector->type = DCB_CONNECTOR_LVDS;
1278                 } else
1279                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1280                         nv_connector->type = DCB_CONNECTOR_TV_0;
1281                 }
1282         }
1283
1284         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1285         case DRM_MODE_CONNECTOR_LVDS:
1286                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1287                 if (ret) {
1288                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1289                         kfree(nv_connector);
1290                         return ERR_PTR(ret);
1291                 }
1292
1293                 funcs = &nouveau_connector_funcs_lvds;
1294                 break;
1295         case DRM_MODE_CONNECTOR_DisplayPort:
1296         case DRM_MODE_CONNECTOR_eDP:
1297                 nv_connector->aux.dev = dev->dev;
1298                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1299                 ret = drm_dp_aux_register(&nv_connector->aux);
1300                 if (ret) {
1301                         NV_ERROR(drm, "failed to register aux channel\n");
1302                         kfree(nv_connector);
1303                         return ERR_PTR(ret);
1304                 }
1305
1306                 funcs = &nouveau_connector_funcs;
1307                 break;
1308         default:
1309                 funcs = &nouveau_connector_funcs;
1310                 break;
1311         }
1312
1313         /* HDMI 3D support */
1314         if ((disp->disp.object.oclass >= G82_DISP)
1315             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1316                 || (type == DRM_MODE_CONNECTOR_eDP)
1317                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1318                 connector->stereo_allowed = true;
1319
1320         /* defaults, will get overridden in detect() */
1321         connector->interlace_allowed = false;
1322         connector->doublescan_allowed = false;
1323
1324         drm_connector_init(dev, connector, funcs, type);
1325         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1326
1327         connector->funcs->reset(connector);
1328         nouveau_conn_attach_properties(connector);
1329
1330         /* Default scaling mode */
1331         switch (nv_connector->type) {
1332         case DCB_CONNECTOR_LVDS:
1333         case DCB_CONNECTOR_LVDS_SPWG:
1334         case DCB_CONNECTOR_eDP:
1335                 /* see note in nouveau_connector_set_property() */
1336                 if (disp->disp.object.oclass < NV50_DISP) {
1337                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1338                         break;
1339                 }
1340                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1341                 break;
1342         default:
1343                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1344                 break;
1345         }
1346
1347         /* dithering properties */
1348         switch (nv_connector->type) {
1349         case DCB_CONNECTOR_TV_0:
1350         case DCB_CONNECTOR_TV_1:
1351         case DCB_CONNECTOR_TV_3:
1352         case DCB_CONNECTOR_VGA:
1353                 break;
1354         default:
1355                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1356                 break;
1357         }
1358
1359         ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1360                                true, NV04_DISP_NTFY_CONN,
1361                                &(struct nvif_notify_conn_req_v0) {
1362                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1363                                 .conn = index,
1364                                },
1365                                sizeof(struct nvif_notify_conn_req_v0),
1366                                sizeof(struct nvif_notify_conn_rep_v0),
1367                                &nv_connector->hpd);
1368         if (ret)
1369                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1370         else
1371                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1372
1373         drm_connector_register(connector);
1374         return connector;
1375 }