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_encoder *nv_encoder = NULL, *found = NULL;
 413         struct drm_encoder *encoder;
 414         int i, ret;
 415         bool switcheroo_ddc = false;
 416
 417         drm_connector_for_each_possible_encoder(connector, encoder, i) {
 418                 nv_encoder = nouveau_encoder(encoder);
 419
 420                 switch (nv_encoder->dcb->type) {
 421                 case DCB_OUTPUT_DP:
 422                         ret = nouveau_dp_detect(nv_encoder);
 423                         if (ret == NOUVEAU_DP_MST)
 424                                 return NULL;
 425                         else if (ret == NOUVEAU_DP_SST)
 426                                 found = nv_encoder;
 427
 428                         break;
 429                 case DCB_OUTPUT_LVDS:
 430                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 431                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 432                 /* fall-through */
 433                 default:
 434                         if (!nv_encoder->i2c)
 435                                 break;
 436
 437                         if (switcheroo_ddc)
 438                                 vga_switcheroo_lock_ddc(dev->pdev);
 439                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 440                                 found = nv_encoder;
 441                         if (switcheroo_ddc)
 442                                 vga_switcheroo_unlock_ddc(dev->pdev);
 443
 444                         break;
 445                 }
 446                 if (found)
 447                         break;
 448         }
 449
 450         return found;
 451 }
 452
 453 static struct nouveau_encoder *
 454 nouveau_connector_of_detect(struct drm_connector *connector)
 455 {
 456 #ifdef __powerpc__
 457         struct drm_device *dev = connector->dev;
 458         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 459         struct nouveau_encoder *nv_encoder;
 460         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 461
 462         if (!dn ||
 463             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 464               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 465                 return NULL;
 466
 467         for_each_child_of_node(dn, cn) {
 468                 const char *name = of_get_property(cn, "name", NULL);
 469                 const void *edid = of_get_property(cn, "EDID", NULL);
 470                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 471
 472                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 473                         nv_connector->edid =
 474                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 475                         of_node_put(cn);
 476                         return nv_encoder;
 477                 }
 478         }
 479 #endif
 480         return NULL;
 481 }
 482
 483 static void
 484 nouveau_connector_set_encoder(struct drm_connector *connector,
 485                               struct nouveau_encoder *nv_encoder)
 486 {
 487         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 488         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 489         struct drm_device *dev = connector->dev;
 490
 491         if (nv_connector->detected_encoder == nv_encoder)
 492                 return;
 493         nv_connector->detected_encoder = nv_encoder;
 494
 495         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 496                 connector->interlace_allowed = true;
 497                 connector->doublescan_allowed = true;
 498         } else
 499         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 500             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 501                 connector->doublescan_allowed = false;
 502                 connector->interlace_allowed = false;
 503         } else {
 504                 connector->doublescan_allowed = true;
 505                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 506                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 507                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
 508                      (dev->pdev->device & 0x0ff0) != 0x0150))
 509                         /* HW is broken */
 510                         connector->interlace_allowed = false;
 511                 else
 512                         connector->interlace_allowed = true;
 513         }
 514
 515         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 516                 drm_object_property_set_value(&connector->base,
 517                         dev->mode_config.dvi_i_subconnector_property,
 518                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 519                         DRM_MODE_SUBCONNECTOR_DVID :
 520                         DRM_MODE_SUBCONNECTOR_DVIA);
 521         }
 522 }
 523
 524 static enum drm_connector_status
 525 nouveau_connector_detect(struct drm_connector *connector, bool force)
 526 {
 527         struct drm_device *dev = connector->dev;
 528         struct nouveau_drm *drm = nouveau_drm(dev);
 529         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 530         struct nouveau_encoder *nv_encoder = NULL;
 531         struct nouveau_encoder *nv_partner;
 532         struct i2c_adapter *i2c;
 533         int type;
 534         int ret;
 535         enum drm_connector_status conn_status = connector_status_disconnected;
 536
 537         /* Cleanup the previous EDID block. */
 538         if (nv_connector->edid) {
 539                 drm_connector_update_edid_property(connector, NULL);
 540                 kfree(nv_connector->edid);
 541                 nv_connector->edid = NULL;
 542         }
 543
 544         /* Outputs are only polled while runtime active, so resuming the
 545          * device here is unnecessary (and would deadlock upon runtime suspend
 546          * because it waits for polling to finish). We do however, want to
 547          * prevent the autosuspend timer from elapsing during this operation
 548          * if possible.
 549          */
 550         if (drm_kms_helper_is_poll_worker()) {
 551                 pm_runtime_get_noresume(dev->dev);
 552         } else {
 553                 ret = pm_runtime_get_sync(dev->dev);
 554                 if (ret < 0 && ret != -EACCES)
 555                         return conn_status;
 556         }
 557
 558         nv_encoder = nouveau_connector_ddc_detect(connector);
 559         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 560                 if ((vga_switcheroo_handler_flags() &
 561                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 562                     nv_connector->type == DCB_CONNECTOR_LVDS)
 563                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 564                                                                      i2c);
 565                 else
 566                         nv_connector->edid = drm_get_edid(connector, i2c);
 567
 568                 drm_connector_update_edid_property(connector,
 569                                                         nv_connector->edid);
 570                 if (!nv_connector->edid) {
 571                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 572                                  connector->name);
 573                         goto detect_analog;
 574                 }
 575
 576                 /* Override encoder type for DVI-I based on whether EDID
 577                  * says the display is digital or analog, both use the
 578                  * same i2c channel so the value returned from ddc_detect
 579                  * isn't necessarily correct.
 580                  */
 581                 nv_partner = NULL;
 582                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 583                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 584                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 585                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 586
 587                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 588                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 589                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 590                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 591                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 592                                 type = DCB_OUTPUT_TMDS;
 593                         else
 594                                 type = DCB_OUTPUT_ANALOG;
 595
 596                         nv_encoder = find_encoder(connector, type);
 597                 }
 598
 599                 nouveau_connector_set_encoder(connector, nv_encoder);
 600                 conn_status = connector_status_connected;
 601                 goto out;
 602         }
 603
 604         nv_encoder = nouveau_connector_of_detect(connector);
 605         if (nv_encoder) {
 606                 nouveau_connector_set_encoder(connector, nv_encoder);
 607                 conn_status = connector_status_connected;
 608                 goto out;
 609         }
 610
 611 detect_analog:
 612         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 613         if (!nv_encoder && !nouveau_tv_disable)
 614                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 615         if (nv_encoder && force) {
 616                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 617                 const struct drm_encoder_helper_funcs *helper =
 618                                                 encoder->helper_private;
 619
 620                 if (helper->detect(encoder, connector) ==
 621                                                 connector_status_connected) {
 622                         nouveau_connector_set_encoder(connector, nv_encoder);
 623                         conn_status = connector_status_connected;
 624                         goto out;
 625                 }
 626
 627         }
 628
 629  out:
 630
 631         pm_runtime_mark_last_busy(dev->dev);
 632         pm_runtime_put_autosuspend(dev->dev);
 633
 634         return conn_status;
 635 }
 636
 637 static enum drm_connector_status
 638 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 639 {
 640         struct drm_device *dev = connector->dev;
 641         struct nouveau_drm *drm = nouveau_drm(dev);
 642         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 643         struct nouveau_encoder *nv_encoder = NULL;
 644         enum drm_connector_status status = connector_status_disconnected;
 645
 646         /* Cleanup the previous EDID block. */
 647         if (nv_connector->edid) {
 648                 drm_connector_update_edid_property(connector, NULL);
 649                 kfree(nv_connector->edid);
 650                 nv_connector->edid = NULL;
 651         }
 652
 653         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 654         if (!nv_encoder)
 655                 return connector_status_disconnected;
 656
 657         /* Try retrieving EDID via DDC */
 658         if (!drm->vbios.fp_no_ddc) {
 659                 status = nouveau_connector_detect(connector, force);
 660                 if (status == connector_status_connected)
 661                         goto out;
 662         }
 663
 664         /* On some laptops (Sony, i'm looking at you) there appears to
 665          * be no direct way of accessing the panel's EDID.  The only
 666          * option available to us appears to be to ask ACPI for help..
 667          *
 668          * It's important this check's before trying straps, one of the
 669          * said manufacturer's laptops are configured in such a way
 670          * the nouveau decides an entry in the VBIOS FP mode table is
 671          * valid - it's not (rh#613284)
 672          */
 673         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 674                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 675                         status = connector_status_connected;
 676                         goto out;
 677                 }
 678         }
 679
 680         /* If no EDID found above, and the VBIOS indicates a hardcoded
 681          * modeline is avalilable for the panel, set it as the panel's
 682          * native mode and exit.
 683          */
 684         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 685             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 686                 status = connector_status_connected;
 687                 goto out;
 688         }
 689
 690         /* Still nothing, some VBIOS images have a hardcoded EDID block
 691          * stored for the panel stored in them.
 692          */
 693         if (!drm->vbios.fp_no_ddc) {
 694                 struct edid *edid =
 695                         (struct edid *)nouveau_bios_embedded_edid(dev);
 696                 if (edid) {
 697                         nv_connector->edid =
 698                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 699                         if (nv_connector->edid)
 700                                 status = connector_status_connected;
 701                 }
 702         }
 703
 704 out:
 705 #if defined(CONFIG_ACPI_BUTTON) || \
 706         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 707         if (status == connector_status_connected &&
 708             !nouveau_ignorelid && !acpi_lid_open())
 709                 status = connector_status_unknown;
 710 #endif
 711
 712         drm_connector_update_edid_property(connector, nv_connector->edid);
 713         nouveau_connector_set_encoder(connector, nv_encoder);
 714         return status;
 715 }
 716
 717 static void
 718 nouveau_connector_force(struct drm_connector *connector)
 719 {
 720         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 721         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 722         struct nouveau_encoder *nv_encoder;
 723         int type;
 724
 725         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 726                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 727                         type = DCB_OUTPUT_TMDS;
 728                 else
 729                         type = DCB_OUTPUT_ANALOG;
 730         } else
 731                 type = DCB_OUTPUT_ANY;
 732
 733         nv_encoder = find_encoder(connector, type);
 734         if (!nv_encoder) {
 735                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 736                          connector->name);
 737                 connector->status = connector_status_disconnected;
 738                 return;
 739         }
 740
 741         nouveau_connector_set_encoder(connector, nv_encoder);
 742 }
 743
 744 static int
 745 nouveau_connector_set_property(struct drm_connector *connector,
 746                                struct drm_property *property, uint64_t value)
 747 {
 748         struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
 749         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 750         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 751         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 752         int ret;
 753
 754         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 755                                                     &asyc->state,
 756                                                     property, value);
 757         if (ret) {
 758                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 759                         return get_slave_funcs(encoder)->set_property(
 760                                 encoder, connector, property, value);
 761                 return ret;
 762         }
 763
 764         nv_connector->scaling_mode = asyc->scaler.mode;
 765         nv_connector->dithering_mode = asyc->dither.mode;
 766
 767         if (connector->encoder && connector->encoder->crtc) {
 768                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 769                                               &connector->encoder->crtc->mode,
 770                                                connector->encoder->crtc->x,
 771                                                connector->encoder->crtc->y,
 772                                                NULL);
 773                 if (!ret)
 774                         return -EINVAL;
 775         }
 776
 777         return 0;
 778 }
 779
 780 struct moderec {
 781         int hdisplay;
 782         int vdisplay;
 783 };
 784
 785 static struct moderec scaler_modes[] = {
 786         { 1920, 1200 },
 787         { 1920, 1080 },
 788         { 1680, 1050 },
 789         { 1600, 1200 },
 790         { 1400, 1050 },
 791         { 1280, 1024 },
 792         { 1280, 960 },
 793         { 1152, 864 },
 794         { 1024, 768 },
 795         { 800, 600 },
 796         { 720, 400 },
 797         { 640, 480 },
 798         { 640, 400 },
 799         { 640, 350 },
 800         {}
 801 };
 802
 803 static int
 804 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 805 {
 806         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 807         struct drm_display_mode *native = nv_connector->native_mode, *m;
 808         struct drm_device *dev = connector->dev;
 809         struct moderec *mode = &scaler_modes[0];
 810         int modes = 0;
 811
 812         if (!native)
 813                 return 0;
 814
 815         while (mode->hdisplay) {
 816                 if (mode->hdisplay <= native->hdisplay &&
 817                     mode->vdisplay <= native->vdisplay &&
 818                     (mode->hdisplay != native->hdisplay ||
 819                      mode->vdisplay != native->vdisplay)) {
 820                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 821                                          drm_mode_vrefresh(native), false,
 822                                          false, false);
 823                         if (!m)
 824                                 continue;
 825
 826                         drm_mode_probed_add(connector, m);
 827                         modes++;
 828                 }
 829
 830                 mode++;
 831         }
 832
 833         return modes;
 834 }
 835
 836 static void
 837 nouveau_connector_detect_depth(struct drm_connector *connector)
 838 {
 839         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 840         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 841         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 842         struct nvbios *bios = &drm->vbios;
 843         struct drm_display_mode *mode = nv_connector->native_mode;
 844         bool duallink;
 845
 846         /* if the edid is feeling nice enough to provide this info, use it */
 847         if (nv_connector->edid && connector->display_info.bpc)
 848                 return;
 849
 850         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 851         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 852                 connector->display_info.bpc = 6;
 853                 return;
 854         }
 855
 856         /* we're out of options unless we're LVDS, default to 8bpc */
 857         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 858                 connector->display_info.bpc = 8;
 859                 return;
 860         }
 861
 862         connector->display_info.bpc = 6;
 863
 864         /* LVDS: panel straps */
 865         if (bios->fp_no_ddc) {
 866                 if (bios->fp.if_is_24bit)
 867                         connector->display_info.bpc = 8;
 868                 return;
 869         }
 870
 871         /* LVDS: DDC panel, need to first determine the number of links to
 872          * know which if_is_24bit flag to check...
 873          */
 874         if (nv_connector->edid &&
 875             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 876                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 877         else
 878                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 879
 880         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 881             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 882                 connector->display_info.bpc = 8;
 883 }
 884
 885 static int
 886 nouveau_connector_get_modes(struct drm_connector *connector)
 887 {
 888         struct drm_device *dev = connector->dev;
 889         struct nouveau_drm *drm = nouveau_drm(dev);
 890         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 891         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 892         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 893         int ret = 0;
 894
 895         /* destroy the native mode, the attached monitor could have changed.
 896          */
 897         if (nv_connector->native_mode) {
 898                 drm_mode_destroy(dev, nv_connector->native_mode);
 899                 nv_connector->native_mode = NULL;
 900         }
 901
 902         if (nv_connector->edid)
 903                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 904         else
 905         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 906             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 907              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 908                 struct drm_display_mode mode;
 909
 910                 nouveau_bios_fp_mode(dev, &mode);
 911                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 912         }
 913
 914         /* Determine display colour depth for everything except LVDS now,
 915          * DP requires this before mode_valid() is called.
 916          */
 917         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 918                 nouveau_connector_detect_depth(connector);
 919
 920         /* Find the native mode if this is a digital panel, if we didn't
 921          * find any modes through DDC previously add the native mode to
 922          * the list of modes.
 923          */
 924         if (!nv_connector->native_mode)
 925                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 926         if (ret == 0 && nv_connector->native_mode) {
 927                 struct drm_display_mode *mode;
 928
 929                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 930                 drm_mode_probed_add(connector, mode);
 931                 ret = 1;
 932         }
 933
 934         /* Determine LVDS colour depth, must happen after determining
 935          * "native" mode as some VBIOS tables require us to use the
 936          * pixel clock as part of the lookup...
 937          */
 938         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 939                 nouveau_connector_detect_depth(connector);
 940
 941         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 942                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 943
 944         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 945             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 946             nv_connector->type == DCB_CONNECTOR_eDP)
 947                 ret += nouveau_connector_scaler_modes_add(connector);
 948
 949         return ret;
 950 }
 951
 952 static unsigned
 953 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 954 {
 955         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 956         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 957         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 958
 959         if (hdmi) {
 960                 if (nouveau_hdmimhz > 0)
 961                         return nouveau_hdmimhz * 1000;
 962                 /* Note: these limits are conservative, some Fermi's
 963                  * can do 297 MHz. Unclear how this can be determined.
 964                  */
 965                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
 966                         return 297000;
 967                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
 968                         return 225000;
 969         }
 970         if (dcb->location != DCB_LOC_ON_CHIP ||
 971             drm->client.device.info.chipset >= 0x46)
 972                 return 165000;
 973         else if (drm->client.device.info.chipset >= 0x40)
 974                 return 155000;
 975         else if (drm->client.device.info.chipset >= 0x18)
 976                 return 135000;
 977         else
 978                 return 112000;
 979 }
 980
 981 static enum drm_mode_status
 982 nouveau_connector_mode_valid(struct drm_connector *connector,
 983                              struct drm_display_mode *mode)
 984 {
 985         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 986         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 987         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 988         unsigned min_clock = 25000, max_clock = min_clock;
 989         unsigned clock = mode->clock;
 990         bool hdmi;
 991
 992         switch (nv_encoder->dcb->type) {
 993         case DCB_OUTPUT_LVDS:
 994                 if (nv_connector->native_mode &&
 995                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 996                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 997                         return MODE_PANEL;
 998
 999                 min_clock = 0;
1000                 max_clock = 400000;
1001                 break;
1002         case DCB_OUTPUT_TMDS:
1003                 hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1004                 max_clock = get_tmds_link_bandwidth(connector, hdmi);
1005                 if (!hdmi && nouveau_duallink &&
1006                     nv_encoder->dcb->duallink_possible)
1007                         max_clock *= 2;
1008                 break;
1009         case DCB_OUTPUT_ANALOG:
1010                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1011                 if (!max_clock)
1012                         max_clock = 350000;
1013                 break;
1014         case DCB_OUTPUT_TV:
1015                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1016         case DCB_OUTPUT_DP:
1017                 max_clock  = nv_encoder->dp.link_nr;
1018                 max_clock *= nv_encoder->dp.link_bw;
1019                 clock = clock * (connector->display_info.bpc * 3) / 10;
1020                 break;
1021         default:
1022                 BUG();
1023                 return MODE_BAD;
1024         }
1025
1026         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1027                 clock *= 2;
1028
1029         if (clock < min_clock)
1030                 return MODE_CLOCK_LOW;
1031
1032         if (clock > max_clock)
1033                 return MODE_CLOCK_HIGH;
1034
1035         return MODE_OK;
1036 }
1037
1038 static struct drm_encoder *
1039 nouveau_connector_best_encoder(struct drm_connector *connector)
1040 {
1041         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1042
1043         if (nv_connector->detected_encoder)
1044                 return to_drm_encoder(nv_connector->detected_encoder);
1045
1046         return NULL;
1047 }
1048
1049 static const struct drm_connector_helper_funcs
1050 nouveau_connector_helper_funcs = {
1051         .get_modes = nouveau_connector_get_modes,
1052         .mode_valid = nouveau_connector_mode_valid,
1053         .best_encoder = nouveau_connector_best_encoder,
1054 };
1055
1056 static const struct drm_connector_funcs
1057 nouveau_connector_funcs = {
1058         .dpms = drm_helper_connector_dpms,
1059         .reset = nouveau_conn_reset,
1060         .detect = nouveau_connector_detect,
1061         .force = nouveau_connector_force,
1062         .fill_modes = drm_helper_probe_single_connector_modes,
1063         .set_property = nouveau_connector_set_property,
1064         .destroy = nouveau_connector_destroy,
1065         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1066         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1067         .atomic_set_property = nouveau_conn_atomic_set_property,
1068         .atomic_get_property = nouveau_conn_atomic_get_property,
1069 };
1070
1071 static const struct drm_connector_funcs
1072 nouveau_connector_funcs_lvds = {
1073         .dpms = drm_helper_connector_dpms,
1074         .reset = nouveau_conn_reset,
1075         .detect = nouveau_connector_detect_lvds,
1076         .force = nouveau_connector_force,
1077         .fill_modes = drm_helper_probe_single_connector_modes,
1078         .set_property = nouveau_connector_set_property,
1079         .destroy = nouveau_connector_destroy,
1080         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1081         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1082         .atomic_set_property = nouveau_conn_atomic_set_property,
1083         .atomic_get_property = nouveau_conn_atomic_get_property,
1084 };
1085
1086 static int
1087 nouveau_connector_hotplug(struct nvif_notify *notify)
1088 {
1089         struct nouveau_connector *nv_connector =
1090                 container_of(notify, typeof(*nv_connector), hpd);
1091         struct drm_connector *connector = &nv_connector->base;
1092         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1093         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1094         const char *name = connector->name;
1095         struct nouveau_encoder *nv_encoder;
1096         int ret;
1097
1098         ret = pm_runtime_get(drm->dev->dev);
1099         if (ret == 0) {
1100                 /* We can't block here if there's a pending PM request
1101                  * running, as we'll deadlock nouveau_display_fini() when it
1102                  * calls nvif_put() on our nvif_notify struct. So, simply
1103                  * defer the hotplug event until the device finishes resuming
1104                  */
1105                 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1106                          name);
1107                 schedule_work(&drm->hpd_work);
1108
1109                 pm_runtime_put_noidle(drm->dev->dev);
1110                 return NVIF_NOTIFY_KEEP;
1111         } else if (ret != 1 && ret != -EACCES) {
1112                 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1113                         name, ret);
1114                 return NVIF_NOTIFY_DROP;
1115         }
1116
1117         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1118                 NV_DEBUG(drm, "service %s\n", name);
1119                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1120                         nv50_mstm_service(nv_encoder->dp.mstm);
1121         } else {
1122                 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1123
1124                 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1125                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1126                         if (!plugged)
1127                                 nv50_mstm_remove(nv_encoder->dp.mstm);
1128                 }
1129
1130                 drm_helper_hpd_irq_event(connector->dev);
1131         }
1132
1133         pm_runtime_mark_last_busy(drm->dev->dev);
1134         pm_runtime_put_autosuspend(drm->dev->dev);
1135         return NVIF_NOTIFY_KEEP;
1136 }
1137
1138 static ssize_t
1139 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1140 {
1141         struct nouveau_connector *nv_connector =
1142                 container_of(obj, typeof(*nv_connector), aux);
1143         struct nouveau_encoder *nv_encoder;
1144         struct nvkm_i2c_aux *aux;
1145         u8 size = msg->size;
1146         int ret;
1147
1148         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1149         if (!nv_encoder || !(aux = nv_encoder->aux))
1150                 return -ENODEV;
1151         if (WARN_ON(msg->size > 16))
1152                 return -E2BIG;
1153
1154         ret = nvkm_i2c_aux_acquire(aux);
1155         if (ret)
1156                 return ret;
1157
1158         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1159                                 msg->buffer, &size);
1160         nvkm_i2c_aux_release(aux);
1161         if (ret >= 0) {
1162                 msg->reply = ret;
1163                 return size;
1164         }
1165
1166         return ret;
1167 }
1168
1169 static int
1170 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1171 {
1172         switch (dcb) {
1173         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1174         case DCB_CONNECTOR_TV_0     :
1175         case DCB_CONNECTOR_TV_1     :
1176         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1177         case DCB_CONNECTOR_DMS59_0  :
1178         case DCB_CONNECTOR_DMS59_1  :
1179         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1180         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1181         case DCB_CONNECTOR_LVDS     :
1182         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1183         case DCB_CONNECTOR_DMS59_DP0:
1184         case DCB_CONNECTOR_DMS59_DP1:
1185         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1186         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1187         case DCB_CONNECTOR_HDMI_0   :
1188         case DCB_CONNECTOR_HDMI_1   :
1189         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1190         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1191         default:
1192                 break;
1193         }
1194
1195         return DRM_MODE_CONNECTOR_Unknown;
1196 }
1197
1198 struct drm_connector *
1199 nouveau_connector_create(struct drm_device *dev, int index)
1200 {
1201         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1202         struct nouveau_drm *drm = nouveau_drm(dev);
1203         struct nouveau_display *disp = nouveau_display(dev);
1204         struct nouveau_connector *nv_connector = NULL;
1205         struct drm_connector *connector;
1206         struct drm_connector_list_iter conn_iter;
1207         int type, ret = 0;
1208         bool dummy;
1209
1210         drm_connector_list_iter_begin(dev, &conn_iter);
1211         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1212                 nv_connector = nouveau_connector(connector);
1213                 if (nv_connector->index == index) {
1214                         drm_connector_list_iter_end(&conn_iter);
1215                         return connector;
1216                 }
1217         }
1218         drm_connector_list_iter_end(&conn_iter);
1219
1220         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1221         if (!nv_connector)
1222                 return ERR_PTR(-ENOMEM);
1223
1224         connector = &nv_connector->base;
1225         nv_connector->index = index;
1226
1227         /* attempt to parse vbios connector type and hotplug gpio */
1228         nv_connector->dcb = olddcb_conn(dev, index);
1229         if (nv_connector->dcb) {
1230                 u32 entry = ROM16(nv_connector->dcb[0]);
1231                 if (olddcb_conntab(dev)[3] >= 4)
1232                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1233
1234                 nv_connector->type = nv_connector->dcb[0];
1235                 if (drm_conntype_from_dcb(nv_connector->type) ==
1236                                           DRM_MODE_CONNECTOR_Unknown) {
1237                         NV_WARN(drm, "unknown connector type %02x\n",
1238                                 nv_connector->type);
1239                         nv_connector->type = DCB_CONNECTOR_NONE;
1240                 }
1241
1242                 /* Gigabyte NX85T */
1243                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1244                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1245                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1246                 }
1247
1248                 /* Gigabyte GV-NX86T512H */
1249                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1250                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1251                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1252                 }
1253         } else {
1254                 nv_connector->type = DCB_CONNECTOR_NONE;
1255         }
1256
1257         /* no vbios data, or an unknown dcb connector type - attempt to
1258          * figure out something suitable ourselves
1259          */
1260         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1261                 struct nouveau_drm *drm = nouveau_drm(dev);
1262                 struct dcb_table *dcbt = &drm->vbios.dcb;
1263                 u32 encoders = 0;
1264                 int i;
1265
1266                 for (i = 0; i < dcbt->entries; i++) {
1267                         if (dcbt->entry[i].connector == nv_connector->index)
1268                                 encoders |= (1 << dcbt->entry[i].type);
1269                 }
1270
1271                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1272                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1273                                 nv_connector->type = DCB_CONNECTOR_DP;
1274                         else
1275                                 nv_connector->type = DCB_CONNECTOR_eDP;
1276                 } else
1277                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1278                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1279                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1280                         else
1281                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1282                 } else
1283                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1284                         nv_connector->type = DCB_CONNECTOR_VGA;
1285                 } else
1286                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1287                         nv_connector->type = DCB_CONNECTOR_LVDS;
1288                 } else
1289                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1290                         nv_connector->type = DCB_CONNECTOR_TV_0;
1291                 }
1292         }
1293
1294         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1295         case DRM_MODE_CONNECTOR_LVDS:
1296                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1297                 if (ret) {
1298                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1299                         kfree(nv_connector);
1300                         return ERR_PTR(ret);
1301                 }
1302
1303                 funcs = &nouveau_connector_funcs_lvds;
1304                 break;
1305         case DRM_MODE_CONNECTOR_DisplayPort:
1306         case DRM_MODE_CONNECTOR_eDP:
1307                 nv_connector->aux.dev = dev->dev;
1308                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1309                 ret = drm_dp_aux_register(&nv_connector->aux);
1310                 if (ret) {
1311                         NV_ERROR(drm, "failed to register aux channel\n");
1312                         kfree(nv_connector);
1313                         return ERR_PTR(ret);
1314                 }
1315
1316                 funcs = &nouveau_connector_funcs;
1317                 break;
1318         default:
1319                 funcs = &nouveau_connector_funcs;
1320                 break;
1321         }
1322
1323         /* HDMI 3D support */
1324         if ((disp->disp.object.oclass >= G82_DISP)
1325             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1326                 || (type == DRM_MODE_CONNECTOR_eDP)
1327                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1328                 connector->stereo_allowed = true;
1329
1330         /* defaults, will get overridden in detect() */
1331         connector->interlace_allowed = false;
1332         connector->doublescan_allowed = false;
1333
1334         drm_connector_init(dev, connector, funcs, type);
1335         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1336
1337         connector->funcs->reset(connector);
1338         nouveau_conn_attach_properties(connector);
1339
1340         /* Default scaling mode */
1341         switch (nv_connector->type) {
1342         case DCB_CONNECTOR_LVDS:
1343         case DCB_CONNECTOR_LVDS_SPWG:
1344         case DCB_CONNECTOR_eDP:
1345                 /* see note in nouveau_connector_set_property() */
1346                 if (disp->disp.object.oclass < NV50_DISP) {
1347                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1348                         break;
1349                 }
1350                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1351                 break;
1352         default:
1353                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1354                 break;
1355         }
1356
1357         /* dithering properties */
1358         switch (nv_connector->type) {
1359         case DCB_CONNECTOR_TV_0:
1360         case DCB_CONNECTOR_TV_1:
1361         case DCB_CONNECTOR_TV_3:
1362         case DCB_CONNECTOR_VGA:
1363                 break;
1364         default:
1365                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1366                 break;
1367         }
1368
1369         ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1370                                true, NV04_DISP_NTFY_CONN,
1371                                &(struct nvif_notify_conn_req_v0) {
1372                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1373                                 .conn = index,
1374                                },
1375                                sizeof(struct nvif_notify_conn_req_v0),
1376                                sizeof(struct nvif_notify_conn_rep_v0),
1377                                &nv_connector->hpd);
1378         if (ret)
1379                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1380         else
1381                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1382
1383         drm_connector_register(connector);
1384         return connector;
1385 }