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                 nouveau_conn_atomic_destroy_state(connector, 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                         pm_runtime_put_autosuspend(dev->dev);
 556                         return conn_status;
 557                 }
 558         }
 559
 560         nv_encoder = nouveau_connector_ddc_detect(connector);
 561         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 562                 if ((vga_switcheroo_handler_flags() &
 563                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 564                     nv_connector->type == DCB_CONNECTOR_LVDS)
 565                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 566                                                                      i2c);
 567                 else
 568                         nv_connector->edid = drm_get_edid(connector, i2c);
 569
 570                 drm_connector_update_edid_property(connector,
 571                                                         nv_connector->edid);
 572                 if (!nv_connector->edid) {
 573                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 574                                  connector->name);
 575                         goto detect_analog;
 576                 }
 577
 578                 /* Override encoder type for DVI-I based on whether EDID
 579                  * says the display is digital or analog, both use the
 580                  * same i2c channel so the value returned from ddc_detect
 581                  * isn't necessarily correct.
 582                  */
 583                 nv_partner = NULL;
 584                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 585                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 586                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 587                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 588
 589                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 590                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 591                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 592                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 593                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 594                                 type = DCB_OUTPUT_TMDS;
 595                         else
 596                                 type = DCB_OUTPUT_ANALOG;
 597
 598                         nv_encoder = find_encoder(connector, type);
 599                 }
 600
 601                 nouveau_connector_set_encoder(connector, nv_encoder);
 602                 conn_status = connector_status_connected;
 603                 goto out;
 604         }
 605
 606         nv_encoder = nouveau_connector_of_detect(connector);
 607         if (nv_encoder) {
 608                 nouveau_connector_set_encoder(connector, nv_encoder);
 609                 conn_status = connector_status_connected;
 610                 goto out;
 611         }
 612
 613 detect_analog:
 614         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 615         if (!nv_encoder && !nouveau_tv_disable)
 616                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 617         if (nv_encoder && force) {
 618                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 619                 const struct drm_encoder_helper_funcs *helper =
 620                                                 encoder->helper_private;
 621
 622                 if (helper->detect(encoder, connector) ==
 623                                                 connector_status_connected) {
 624                         nouveau_connector_set_encoder(connector, nv_encoder);
 625                         conn_status = connector_status_connected;
 626                         goto out;
 627                 }
 628
 629         }
 630
 631  out:
 632
 633         pm_runtime_mark_last_busy(dev->dev);
 634         pm_runtime_put_autosuspend(dev->dev);
 635
 636         return conn_status;
 637 }
 638
 639 static enum drm_connector_status
 640 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 641 {
 642         struct drm_device *dev = connector->dev;
 643         struct nouveau_drm *drm = nouveau_drm(dev);
 644         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 645         struct nouveau_encoder *nv_encoder = NULL;
 646         enum drm_connector_status status = connector_status_disconnected;
 647
 648         /* Cleanup the previous EDID block. */
 649         if (nv_connector->edid) {
 650                 drm_connector_update_edid_property(connector, NULL);
 651                 kfree(nv_connector->edid);
 652                 nv_connector->edid = NULL;
 653         }
 654
 655         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 656         if (!nv_encoder)
 657                 return connector_status_disconnected;
 658
 659         /* Try retrieving EDID via DDC */
 660         if (!drm->vbios.fp_no_ddc) {
 661                 status = nouveau_connector_detect(connector, force);
 662                 if (status == connector_status_connected)
 663                         goto out;
 664         }
 665
 666         /* On some laptops (Sony, i'm looking at you) there appears to
 667          * be no direct way of accessing the panel's EDID.  The only
 668          * option available to us appears to be to ask ACPI for help..
 669          *
 670          * It's important this check's before trying straps, one of the
 671          * said manufacturer's laptops are configured in such a way
 672          * the nouveau decides an entry in the VBIOS FP mode table is
 673          * valid - it's not (rh#613284)
 674          */
 675         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 676                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 677                         status = connector_status_connected;
 678                         goto out;
 679                 }
 680         }
 681
 682         /* If no EDID found above, and the VBIOS indicates a hardcoded
 683          * modeline is avalilable for the panel, set it as the panel's
 684          * native mode and exit.
 685          */
 686         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 687             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 688                 status = connector_status_connected;
 689                 goto out;
 690         }
 691
 692         /* Still nothing, some VBIOS images have a hardcoded EDID block
 693          * stored for the panel stored in them.
 694          */
 695         if (!drm->vbios.fp_no_ddc) {
 696                 struct edid *edid =
 697                         (struct edid *)nouveau_bios_embedded_edid(dev);
 698                 if (edid) {
 699                         nv_connector->edid =
 700                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 701                         if (nv_connector->edid)
 702                                 status = connector_status_connected;
 703                 }
 704         }
 705
 706 out:
 707 #if defined(CONFIG_ACPI_BUTTON) || \
 708         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 709         if (status == connector_status_connected &&
 710             !nouveau_ignorelid && !acpi_lid_open())
 711                 status = connector_status_unknown;
 712 #endif
 713
 714         drm_connector_update_edid_property(connector, nv_connector->edid);
 715         nouveau_connector_set_encoder(connector, nv_encoder);
 716         return status;
 717 }
 718
 719 static void
 720 nouveau_connector_force(struct drm_connector *connector)
 721 {
 722         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 723         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 724         struct nouveau_encoder *nv_encoder;
 725         int type;
 726
 727         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 728                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 729                         type = DCB_OUTPUT_TMDS;
 730                 else
 731                         type = DCB_OUTPUT_ANALOG;
 732         } else
 733                 type = DCB_OUTPUT_ANY;
 734
 735         nv_encoder = find_encoder(connector, type);
 736         if (!nv_encoder) {
 737                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 738                          connector->name);
 739                 connector->status = connector_status_disconnected;
 740                 return;
 741         }
 742
 743         nouveau_connector_set_encoder(connector, nv_encoder);
 744 }
 745
 746 static int
 747 nouveau_connector_set_property(struct drm_connector *connector,
 748                                struct drm_property *property, uint64_t value)
 749 {
 750         struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
 751         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 752         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 753         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 754         int ret;
 755
 756         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 757                                                     &asyc->state,
 758                                                     property, value);
 759         if (ret) {
 760                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 761                         return get_slave_funcs(encoder)->set_property(
 762                                 encoder, connector, property, value);
 763                 return ret;
 764         }
 765
 766         nv_connector->scaling_mode = asyc->scaler.mode;
 767         nv_connector->dithering_mode = asyc->dither.mode;
 768
 769         if (connector->encoder && connector->encoder->crtc) {
 770                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 771                                               &connector->encoder->crtc->mode,
 772                                                connector->encoder->crtc->x,
 773                                                connector->encoder->crtc->y,
 774                                                NULL);
 775                 if (!ret)
 776                         return -EINVAL;
 777         }
 778
 779         return 0;
 780 }
 781
 782 struct moderec {
 783         int hdisplay;
 784         int vdisplay;
 785 };
 786
 787 static struct moderec scaler_modes[] = {
 788         { 1920, 1200 },
 789         { 1920, 1080 },
 790         { 1680, 1050 },
 791         { 1600, 1200 },
 792         { 1400, 1050 },
 793         { 1280, 1024 },
 794         { 1280, 960 },
 795         { 1152, 864 },
 796         { 1024, 768 },
 797         { 800, 600 },
 798         { 720, 400 },
 799         { 640, 480 },
 800         { 640, 400 },
 801         { 640, 350 },
 802         {}
 803 };
 804
 805 static int
 806 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 807 {
 808         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 809         struct drm_display_mode *native = nv_connector->native_mode, *m;
 810         struct drm_device *dev = connector->dev;
 811         struct moderec *mode = &scaler_modes[0];
 812         int modes = 0;
 813
 814         if (!native)
 815                 return 0;
 816
 817         while (mode->hdisplay) {
 818                 if (mode->hdisplay <= native->hdisplay &&
 819                     mode->vdisplay <= native->vdisplay &&
 820                     (mode->hdisplay != native->hdisplay ||
 821                      mode->vdisplay != native->vdisplay)) {
 822                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 823                                          drm_mode_vrefresh(native), false,
 824                                          false, false);
 825                         if (!m)
 826                                 continue;
 827
 828                         drm_mode_probed_add(connector, m);
 829                         modes++;
 830                 }
 831
 832                 mode++;
 833         }
 834
 835         return modes;
 836 }
 837
 838 static void
 839 nouveau_connector_detect_depth(struct drm_connector *connector)
 840 {
 841         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 842         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 843         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 844         struct nvbios *bios = &drm->vbios;
 845         struct drm_display_mode *mode = nv_connector->native_mode;
 846         bool duallink;
 847
 848         /* if the edid is feeling nice enough to provide this info, use it */
 849         if (nv_connector->edid && connector->display_info.bpc)
 850                 return;
 851
 852         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 853         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 854                 connector->display_info.bpc = 6;
 855                 return;
 856         }
 857
 858         /* we're out of options unless we're LVDS, default to 8bpc */
 859         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 860                 connector->display_info.bpc = 8;
 861                 return;
 862         }
 863
 864         connector->display_info.bpc = 6;
 865
 866         /* LVDS: panel straps */
 867         if (bios->fp_no_ddc) {
 868                 if (bios->fp.if_is_24bit)
 869                         connector->display_info.bpc = 8;
 870                 return;
 871         }
 872
 873         /* LVDS: DDC panel, need to first determine the number of links to
 874          * know which if_is_24bit flag to check...
 875          */
 876         if (nv_connector->edid &&
 877             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 878                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 879         else
 880                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 881
 882         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 883             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 884                 connector->display_info.bpc = 8;
 885 }
 886
 887 static int
 888 nouveau_connector_get_modes(struct drm_connector *connector)
 889 {
 890         struct drm_device *dev = connector->dev;
 891         struct nouveau_drm *drm = nouveau_drm(dev);
 892         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 893         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 894         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 895         int ret = 0;
 896
 897         /* destroy the native mode, the attached monitor could have changed.
 898          */
 899         if (nv_connector->native_mode) {
 900                 drm_mode_destroy(dev, nv_connector->native_mode);
 901                 nv_connector->native_mode = NULL;
 902         }
 903
 904         if (nv_connector->edid)
 905                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 906         else
 907         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 908             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 909              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 910                 struct drm_display_mode mode;
 911
 912                 nouveau_bios_fp_mode(dev, &mode);
 913                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 914         }
 915
 916         /* Determine display colour depth for everything except LVDS now,
 917          * DP requires this before mode_valid() is called.
 918          */
 919         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 920                 nouveau_connector_detect_depth(connector);
 921
 922         /* Find the native mode if this is a digital panel, if we didn't
 923          * find any modes through DDC previously add the native mode to
 924          * the list of modes.
 925          */
 926         if (!nv_connector->native_mode)
 927                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 928         if (ret == 0 && nv_connector->native_mode) {
 929                 struct drm_display_mode *mode;
 930
 931                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 932                 drm_mode_probed_add(connector, mode);
 933                 ret = 1;
 934         }
 935
 936         /* Determine LVDS colour depth, must happen after determining
 937          * "native" mode as some VBIOS tables require us to use the
 938          * pixel clock as part of the lookup...
 939          */
 940         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 941                 nouveau_connector_detect_depth(connector);
 942
 943         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 944                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 945
 946         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 947             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 948             nv_connector->type == DCB_CONNECTOR_eDP)
 949                 ret += nouveau_connector_scaler_modes_add(connector);
 950
 951         return ret;
 952 }
 953
 954 static unsigned
 955 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 956 {
 957         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 958         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 959         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 960
 961         if (hdmi) {
 962                 if (nouveau_hdmimhz > 0)
 963                         return nouveau_hdmimhz * 1000;
 964                 /* Note: these limits are conservative, some Fermi's
 965                  * can do 297 MHz. Unclear how this can be determined.
 966                  */
 967                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
 968                         return 297000;
 969                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
 970                         return 225000;
 971         }
 972         if (dcb->location != DCB_LOC_ON_CHIP ||
 973             drm->client.device.info.chipset >= 0x46)
 974                 return 165000;
 975         else if (drm->client.device.info.chipset >= 0x40)
 976                 return 155000;
 977         else if (drm->client.device.info.chipset >= 0x18)
 978                 return 135000;
 979         else
 980                 return 112000;
 981 }
 982
 983 static enum drm_mode_status
 984 nouveau_connector_mode_valid(struct drm_connector *connector,
 985                              struct drm_display_mode *mode)
 986 {
 987         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 988         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 989         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 990         unsigned min_clock = 25000, max_clock = min_clock;
 991         unsigned clock = mode->clock;
 992         bool hdmi;
 993
 994         switch (nv_encoder->dcb->type) {
 995         case DCB_OUTPUT_LVDS:
 996                 if (nv_connector->native_mode &&
 997                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
 998                      mode->vdisplay > nv_connector->native_mode->vdisplay))
 999                         return MODE_PANEL;
1000
1001                 min_clock = 0;
1002                 max_clock = 400000;
1003                 break;
1004         case DCB_OUTPUT_TMDS:
1005                 hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1006                 max_clock = get_tmds_link_bandwidth(connector, hdmi);
1007                 if (!hdmi && nouveau_duallink &&
1008                     nv_encoder->dcb->duallink_possible)
1009                         max_clock *= 2;
1010                 break;
1011         case DCB_OUTPUT_ANALOG:
1012                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1013                 if (!max_clock)
1014                         max_clock = 350000;
1015                 break;
1016         case DCB_OUTPUT_TV:
1017                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1018         case DCB_OUTPUT_DP:
1019                 max_clock  = nv_encoder->dp.link_nr;
1020                 max_clock *= nv_encoder->dp.link_bw;
1021                 clock = clock * (connector->display_info.bpc * 3) / 10;
1022                 break;
1023         default:
1024                 BUG();
1025                 return MODE_BAD;
1026         }
1027
1028         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1029                 clock *= 2;
1030
1031         if (clock < min_clock)
1032                 return MODE_CLOCK_LOW;
1033
1034         if (clock > max_clock)
1035                 return MODE_CLOCK_HIGH;
1036
1037         return MODE_OK;
1038 }
1039
1040 static struct drm_encoder *
1041 nouveau_connector_best_encoder(struct drm_connector *connector)
1042 {
1043         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1044
1045         if (nv_connector->detected_encoder)
1046                 return to_drm_encoder(nv_connector->detected_encoder);
1047
1048         return NULL;
1049 }
1050
1051 static const struct drm_connector_helper_funcs
1052 nouveau_connector_helper_funcs = {
1053         .get_modes = nouveau_connector_get_modes,
1054         .mode_valid = nouveau_connector_mode_valid,
1055         .best_encoder = nouveau_connector_best_encoder,
1056 };
1057
1058 static const struct drm_connector_funcs
1059 nouveau_connector_funcs = {
1060         .dpms = drm_helper_connector_dpms,
1061         .reset = nouveau_conn_reset,
1062         .detect = nouveau_connector_detect,
1063         .force = nouveau_connector_force,
1064         .fill_modes = drm_helper_probe_single_connector_modes,
1065         .set_property = nouveau_connector_set_property,
1066         .destroy = nouveau_connector_destroy,
1067         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1068         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1069         .atomic_set_property = nouveau_conn_atomic_set_property,
1070         .atomic_get_property = nouveau_conn_atomic_get_property,
1071 };
1072
1073 static const struct drm_connector_funcs
1074 nouveau_connector_funcs_lvds = {
1075         .dpms = drm_helper_connector_dpms,
1076         .reset = nouveau_conn_reset,
1077         .detect = nouveau_connector_detect_lvds,
1078         .force = nouveau_connector_force,
1079         .fill_modes = drm_helper_probe_single_connector_modes,
1080         .set_property = nouveau_connector_set_property,
1081         .destroy = nouveau_connector_destroy,
1082         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1083         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1084         .atomic_set_property = nouveau_conn_atomic_set_property,
1085         .atomic_get_property = nouveau_conn_atomic_get_property,
1086 };
1087
1088 static int
1089 nouveau_connector_hotplug(struct nvif_notify *notify)
1090 {
1091         struct nouveau_connector *nv_connector =
1092                 container_of(notify, typeof(*nv_connector), hpd);
1093         struct drm_connector *connector = &nv_connector->base;
1094         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1095         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1096         const char *name = connector->name;
1097         struct nouveau_encoder *nv_encoder;
1098         int ret;
1099
1100         ret = pm_runtime_get(drm->dev->dev);
1101         if (ret == 0) {
1102                 /* We can't block here if there's a pending PM request
1103                  * running, as we'll deadlock nouveau_display_fini() when it
1104                  * calls nvif_put() on our nvif_notify struct. So, simply
1105                  * defer the hotplug event until the device finishes resuming
1106                  */
1107                 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1108                          name);
1109                 schedule_work(&drm->hpd_work);
1110
1111                 pm_runtime_put_noidle(drm->dev->dev);
1112                 return NVIF_NOTIFY_KEEP;
1113         } else if (ret != 1 && ret != -EACCES) {
1114                 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1115                         name, ret);
1116                 return NVIF_NOTIFY_DROP;
1117         }
1118
1119         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1120                 NV_DEBUG(drm, "service %s\n", name);
1121                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1122                         nv50_mstm_service(nv_encoder->dp.mstm);
1123         } else {
1124                 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1125
1126                 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1127                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1128                         if (!plugged)
1129                                 nv50_mstm_remove(nv_encoder->dp.mstm);
1130                 }
1131
1132                 drm_helper_hpd_irq_event(connector->dev);
1133         }
1134
1135         pm_runtime_mark_last_busy(drm->dev->dev);
1136         pm_runtime_put_autosuspend(drm->dev->dev);
1137         return NVIF_NOTIFY_KEEP;
1138 }
1139
1140 static ssize_t
1141 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1142 {
1143         struct nouveau_connector *nv_connector =
1144                 container_of(obj, typeof(*nv_connector), aux);
1145         struct nouveau_encoder *nv_encoder;
1146         struct nvkm_i2c_aux *aux;
1147         u8 size = msg->size;
1148         int ret;
1149
1150         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1151         if (!nv_encoder || !(aux = nv_encoder->aux))
1152                 return -ENODEV;
1153         if (WARN_ON(msg->size > 16))
1154                 return -E2BIG;
1155
1156         ret = nvkm_i2c_aux_acquire(aux);
1157         if (ret)
1158                 return ret;
1159
1160         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1161                                 msg->buffer, &size);
1162         nvkm_i2c_aux_release(aux);
1163         if (ret >= 0) {
1164                 msg->reply = ret;
1165                 return size;
1166         }
1167
1168         return ret;
1169 }
1170
1171 static int
1172 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1173 {
1174         switch (dcb) {
1175         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1176         case DCB_CONNECTOR_TV_0     :
1177         case DCB_CONNECTOR_TV_1     :
1178         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1179         case DCB_CONNECTOR_DMS59_0  :
1180         case DCB_CONNECTOR_DMS59_1  :
1181         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1182         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1183         case DCB_CONNECTOR_LVDS     :
1184         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1185         case DCB_CONNECTOR_DMS59_DP0:
1186         case DCB_CONNECTOR_DMS59_DP1:
1187         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1188         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1189         case DCB_CONNECTOR_HDMI_0   :
1190         case DCB_CONNECTOR_HDMI_1   :
1191         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1192         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1193         default:
1194                 break;
1195         }
1196
1197         return DRM_MODE_CONNECTOR_Unknown;
1198 }
1199
1200 struct drm_connector *
1201 nouveau_connector_create(struct drm_device *dev, int index)
1202 {
1203         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1204         struct nouveau_drm *drm = nouveau_drm(dev);
1205         struct nouveau_display *disp = nouveau_display(dev);
1206         struct nouveau_connector *nv_connector = NULL;
1207         struct drm_connector *connector;
1208         struct drm_connector_list_iter conn_iter;
1209         int type, ret = 0;
1210         bool dummy;
1211
1212         drm_connector_list_iter_begin(dev, &conn_iter);
1213         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1214                 nv_connector = nouveau_connector(connector);
1215                 if (nv_connector->index == index) {
1216                         drm_connector_list_iter_end(&conn_iter);
1217                         return connector;
1218                 }
1219         }
1220         drm_connector_list_iter_end(&conn_iter);
1221
1222         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1223         if (!nv_connector)
1224                 return ERR_PTR(-ENOMEM);
1225
1226         connector = &nv_connector->base;
1227         nv_connector->index = index;
1228
1229         /* attempt to parse vbios connector type and hotplug gpio */
1230         nv_connector->dcb = olddcb_conn(dev, index);
1231         if (nv_connector->dcb) {
1232                 u32 entry = ROM16(nv_connector->dcb[0]);
1233                 if (olddcb_conntab(dev)[3] >= 4)
1234                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1235
1236                 nv_connector->type = nv_connector->dcb[0];
1237                 if (drm_conntype_from_dcb(nv_connector->type) ==
1238                                           DRM_MODE_CONNECTOR_Unknown) {
1239                         NV_WARN(drm, "unknown connector type %02x\n",
1240                                 nv_connector->type);
1241                         nv_connector->type = DCB_CONNECTOR_NONE;
1242                 }
1243
1244                 /* Gigabyte NX85T */
1245                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1246                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1247                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1248                 }
1249
1250                 /* Gigabyte GV-NX86T512H */
1251                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1252                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1253                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1254                 }
1255         } else {
1256                 nv_connector->type = DCB_CONNECTOR_NONE;
1257         }
1258
1259         /* no vbios data, or an unknown dcb connector type - attempt to
1260          * figure out something suitable ourselves
1261          */
1262         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1263                 struct nouveau_drm *drm = nouveau_drm(dev);
1264                 struct dcb_table *dcbt = &drm->vbios.dcb;
1265                 u32 encoders = 0;
1266                 int i;
1267
1268                 for (i = 0; i < dcbt->entries; i++) {
1269                         if (dcbt->entry[i].connector == nv_connector->index)
1270                                 encoders |= (1 << dcbt->entry[i].type);
1271                 }
1272
1273                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1274                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1275                                 nv_connector->type = DCB_CONNECTOR_DP;
1276                         else
1277                                 nv_connector->type = DCB_CONNECTOR_eDP;
1278                 } else
1279                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1280                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1281                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1282                         else
1283                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1284                 } else
1285                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1286                         nv_connector->type = DCB_CONNECTOR_VGA;
1287                 } else
1288                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1289                         nv_connector->type = DCB_CONNECTOR_LVDS;
1290                 } else
1291                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1292                         nv_connector->type = DCB_CONNECTOR_TV_0;
1293                 }
1294         }
1295
1296         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1297         case DRM_MODE_CONNECTOR_LVDS:
1298                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1299                 if (ret) {
1300                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1301                         kfree(nv_connector);
1302                         return ERR_PTR(ret);
1303                 }
1304
1305                 funcs = &nouveau_connector_funcs_lvds;
1306                 break;
1307         case DRM_MODE_CONNECTOR_DisplayPort:
1308         case DRM_MODE_CONNECTOR_eDP:
1309                 nv_connector->aux.dev = dev->dev;
1310                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1311                 ret = drm_dp_aux_register(&nv_connector->aux);
1312                 if (ret) {
1313                         NV_ERROR(drm, "failed to register aux channel\n");
1314                         kfree(nv_connector);
1315                         return ERR_PTR(ret);
1316                 }
1317
1318                 funcs = &nouveau_connector_funcs;
1319                 break;
1320         default:
1321                 funcs = &nouveau_connector_funcs;
1322                 break;
1323         }
1324
1325         /* HDMI 3D support */
1326         if ((disp->disp.object.oclass >= G82_DISP)
1327             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1328                 || (type == DRM_MODE_CONNECTOR_eDP)
1329                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1330                 connector->stereo_allowed = true;
1331
1332         /* defaults, will get overridden in detect() */
1333         connector->interlace_allowed = false;
1334         connector->doublescan_allowed = false;
1335
1336         drm_connector_init(dev, connector, funcs, type);
1337         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1338
1339         connector->funcs->reset(connector);
1340         nouveau_conn_attach_properties(connector);
1341
1342         /* Default scaling mode */
1343         switch (nv_connector->type) {
1344         case DCB_CONNECTOR_LVDS:
1345         case DCB_CONNECTOR_LVDS_SPWG:
1346         case DCB_CONNECTOR_eDP:
1347                 /* see note in nouveau_connector_set_property() */
1348                 if (disp->disp.object.oclass < NV50_DISP) {
1349                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1350                         break;
1351                 }
1352                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1353                 break;
1354         default:
1355                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1356                 break;
1357         }
1358
1359         /* dithering properties */
1360         switch (nv_connector->type) {
1361         case DCB_CONNECTOR_TV_0:
1362         case DCB_CONNECTOR_TV_1:
1363         case DCB_CONNECTOR_TV_3:
1364         case DCB_CONNECTOR_VGA:
1365                 break;
1366         default:
1367                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1368                 break;
1369         }
1370
1371         ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1372                                true, NV04_DISP_NTFY_CONN,
1373                                &(struct nvif_notify_conn_req_v0) {
1374                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1375                                 .conn = index,
1376                                },
1377                                sizeof(struct nvif_notify_conn_req_v0),
1378                                sizeof(struct nvif_notify_conn_rep_v0),
1379                                &nv_connector->hpd);
1380         if (ret)
1381                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1382         else
1383                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1384
1385         drm_connector_register(connector);
1386         return connector;
1387 }