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/drm_atomic_helper.h>
  33 #include <drm/drm_edid.h>
  34 #include <drm/drm_crtc_helper.h>
  35 #include <drm/drm_probe_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 "dispnv50/disp.h"
  42 #include "nouveau_acpi.h"
  43
  44 #include "nouveau_display.h"
  45 #include "nouveau_connector.h"
  46 #include "nouveau_encoder.h"
  47 #include "nouveau_crtc.h"
  48
  49 #include <nvif/class.h>
  50 #include <nvif/cl0046.h>
  51 #include <nvif/event.h>
  52
  53 struct drm_display_mode *
  54 nouveau_conn_native_mode(struct drm_connector *connector)
  55 {
  56         const struct drm_connector_helper_funcs *helper = connector->helper_private;
  57         struct nouveau_drm *drm = nouveau_drm(connector->dev);
  58         struct drm_device *dev = connector->dev;
  59         struct drm_display_mode *mode, *largest = NULL;
  60         int high_w = 0, high_h = 0, high_v = 0;
  61
  62         list_for_each_entry(mode, &connector->probed_modes, head) {
  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                     drm_mode_vrefresh(mode) < high_v)
  84                         continue;
  85
  86                 high_w = mode->hdisplay;
  87                 high_h = mode->vdisplay;
  88                 high_v = drm_mode_vrefresh(mode);
  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_connector *nv_connector = nouveau_connector(connector);
 249         struct nouveau_conn_atom *asyc;
 250
 251         if (drm_drv_uses_atomic_modeset(connector->dev)) {
 252                 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 253                         return;
 254
 255                 if (connector->state)
 256                         nouveau_conn_atomic_destroy_state(connector,
 257                                                           connector->state);
 258
 259                 __drm_atomic_helper_connector_reset(connector, &asyc->state);
 260         } else {
 261                 asyc = &nv_connector->properties_state;
 262         }
 263
 264         asyc->dither.mode = DITHERING_MODE_AUTO;
 265         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 266         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 267         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 268         asyc->procamp.color_vibrance = 150;
 269         asyc->procamp.vibrant_hue = 90;
 270
 271         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 272                 switch (connector->connector_type) {
 273                 case DRM_MODE_CONNECTOR_LVDS:
 274                         /* See note in nouveau_conn_atomic_set_property(). */
 275                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 276                         break;
 277                 default:
 278                         break;
 279                 }
 280         }
 281 }
 282
 283 void
 284 nouveau_conn_attach_properties(struct drm_connector *connector)
 285 {
 286         struct drm_device *dev = connector->dev;
 287         struct nouveau_display *disp = nouveau_display(dev);
 288         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 289         struct nouveau_conn_atom *armc;
 290
 291         if (drm_drv_uses_atomic_modeset(connector->dev))
 292                 armc = nouveau_conn_atom(connector->state);
 293         else
 294                 armc = &nv_connector->properties_state;
 295
 296         /* Init DVI-I specific properties. */
 297         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 298                 drm_object_attach_property(&connector->base, dev->mode_config.
 299                                            dvi_i_subconnector_property, 0);
 300
 301         /* Add overscan compensation options to digital outputs. */
 302         if (disp->underscan_property &&
 303             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 304              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 305              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 306              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 307                 drm_object_attach_property(&connector->base,
 308                                            disp->underscan_property,
 309                                            UNDERSCAN_OFF);
 310                 drm_object_attach_property(&connector->base,
 311                                            disp->underscan_hborder_property, 0);
 312                 drm_object_attach_property(&connector->base,
 313                                            disp->underscan_vborder_property, 0);
 314         }
 315
 316         /* Add hue and saturation options. */
 317         if (disp->vibrant_hue_property)
 318                 drm_object_attach_property(&connector->base,
 319                                            disp->vibrant_hue_property,
 320                                            armc->procamp.vibrant_hue);
 321         if (disp->color_vibrance_property)
 322                 drm_object_attach_property(&connector->base,
 323                                            disp->color_vibrance_property,
 324                                            armc->procamp.color_vibrance);
 325
 326         /* Scaling mode property. */
 327         switch (connector->connector_type) {
 328         case DRM_MODE_CONNECTOR_TV:
 329                 break;
 330         case DRM_MODE_CONNECTOR_VGA:
 331                 if (disp->disp.object.oclass < NV50_DISP)
 332                         break; /* Can only scale on DFPs. */
 333                 fallthrough;
 334         default:
 335                 drm_object_attach_property(&connector->base, dev->mode_config.
 336                                            scaling_mode_property,
 337                                            armc->scaler.mode);
 338                 break;
 339         }
 340
 341         /* Dithering properties. */
 342         switch (connector->connector_type) {
 343         case DRM_MODE_CONNECTOR_TV:
 344         case DRM_MODE_CONNECTOR_VGA:
 345                 break;
 346         default:
 347                 if (disp->dithering_mode) {
 348                         drm_object_attach_property(&connector->base,
 349                                                    disp->dithering_mode,
 350                                                    armc->dither.mode);
 351                 }
 352                 if (disp->dithering_depth) {
 353                         drm_object_attach_property(&connector->base,
 354                                                    disp->dithering_depth,
 355                                                    armc->dither.depth);
 356                 }
 357                 break;
 358         }
 359 }
 360
 361 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 362 int nouveau_tv_disable = 0;
 363 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 364
 365 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 366 int nouveau_ignorelid = 0;
 367 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 368
 369 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 370 int nouveau_duallink = 1;
 371 module_param_named(duallink, nouveau_duallink, int, 0400);
 372
 373 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 374 int nouveau_hdmimhz = 0;
 375 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 376
 377 struct nouveau_encoder *
 378 find_encoder(struct drm_connector *connector, int type)
 379 {
 380         struct nouveau_encoder *nv_encoder;
 381         struct drm_encoder *enc;
 382
 383         drm_connector_for_each_possible_encoder(connector, enc) {
 384                 nv_encoder = nouveau_encoder(enc);
 385
 386                 if (type == DCB_OUTPUT_ANY ||
 387                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 388                         return nv_encoder;
 389         }
 390
 391         return NULL;
 392 }
 393
 394 struct nouveau_connector *
 395 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 396 {
 397         struct drm_device *dev = to_drm_encoder(encoder)->dev;
 398         struct drm_connector *drm_connector;
 399
 400         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 401                 if (drm_connector->encoder == to_drm_encoder(encoder))
 402                         return nouveau_connector(drm_connector);
 403         }
 404
 405         return NULL;
 406 }
 407
 408 static void
 409 nouveau_connector_destroy(struct drm_connector *connector)
 410 {
 411         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 412         nvif_notify_dtor(&nv_connector->hpd);
 413         kfree(nv_connector->edid);
 414         drm_connector_unregister(connector);
 415         drm_connector_cleanup(connector);
 416         if (nv_connector->aux.transfer) {
 417                 drm_dp_cec_unregister_connector(&nv_connector->aux);
 418                 drm_dp_aux_unregister(&nv_connector->aux);
 419                 kfree(nv_connector->aux.name);
 420         }
 421         kfree(connector);
 422 }
 423
 424 static struct nouveau_encoder *
 425 nouveau_connector_ddc_detect(struct drm_connector *connector)
 426 {
 427         struct drm_device *dev = connector->dev;
 428         struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
 429         struct drm_encoder *encoder;
 430         int ret;
 431         bool switcheroo_ddc = false;
 432
 433         drm_connector_for_each_possible_encoder(connector, encoder) {
 434                 nv_encoder = nouveau_encoder(encoder);
 435
 436                 switch (nv_encoder->dcb->type) {
 437                 case DCB_OUTPUT_DP:
 438                         ret = nouveau_dp_detect(nv_encoder);
 439                         if (ret == NOUVEAU_DP_MST)
 440                                 return NULL;
 441                         else if (ret == NOUVEAU_DP_SST)
 442                                 found = nv_encoder;
 443
 444                         break;
 445                 case DCB_OUTPUT_LVDS:
 446                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 447                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 448                         fallthrough;
 449                 default:
 450                         if (!nv_encoder->i2c)
 451                                 break;
 452
 453                         if (switcheroo_ddc)
 454                                 vga_switcheroo_lock_ddc(dev->pdev);
 455                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 456                                 found = nv_encoder;
 457                         if (switcheroo_ddc)
 458                                 vga_switcheroo_unlock_ddc(dev->pdev);
 459
 460                         break;
 461                 }
 462                 if (found)
 463                         break;
 464         }
 465
 466         return found;
 467 }
 468
 469 static struct nouveau_encoder *
 470 nouveau_connector_of_detect(struct drm_connector *connector)
 471 {
 472 #ifdef __powerpc__
 473         struct drm_device *dev = connector->dev;
 474         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 475         struct nouveau_encoder *nv_encoder;
 476         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 477
 478         if (!dn ||
 479             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 480               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 481                 return NULL;
 482
 483         for_each_child_of_node(dn, cn) {
 484                 const char *name = of_get_property(cn, "name", NULL);
 485                 const void *edid = of_get_property(cn, "EDID", NULL);
 486                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 487
 488                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 489                         nv_connector->edid =
 490                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 491                         of_node_put(cn);
 492                         return nv_encoder;
 493                 }
 494         }
 495 #endif
 496         return NULL;
 497 }
 498
 499 static void
 500 nouveau_connector_set_encoder(struct drm_connector *connector,
 501                               struct nouveau_encoder *nv_encoder)
 502 {
 503         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 504         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 505         struct drm_device *dev = connector->dev;
 506
 507         if (nv_connector->detected_encoder == nv_encoder)
 508                 return;
 509         nv_connector->detected_encoder = nv_encoder;
 510
 511         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 512                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
 513                         connector->interlace_allowed =
 514                                 nv_encoder->caps.dp_interlace;
 515                 else
 516                         connector->interlace_allowed = true;
 517                 connector->doublescan_allowed = true;
 518         } else
 519         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 520             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 521                 connector->doublescan_allowed = false;
 522                 connector->interlace_allowed = false;
 523         } else {
 524                 connector->doublescan_allowed = true;
 525                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 526                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 527                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
 528                      (dev->pdev->device & 0x0ff0) != 0x0150))
 529                         /* HW is broken */
 530                         connector->interlace_allowed = false;
 531                 else
 532                         connector->interlace_allowed = true;
 533         }
 534
 535         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 536                 drm_object_property_set_value(&connector->base,
 537                         dev->mode_config.dvi_i_subconnector_property,
 538                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 539                         DRM_MODE_SUBCONNECTOR_DVID :
 540                         DRM_MODE_SUBCONNECTOR_DVIA);
 541         }
 542 }
 543
 544 static enum drm_connector_status
 545 nouveau_connector_detect(struct drm_connector *connector, bool force)
 546 {
 547         struct drm_device *dev = connector->dev;
 548         struct nouveau_drm *drm = nouveau_drm(dev);
 549         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 550         struct nouveau_encoder *nv_encoder = NULL;
 551         struct nouveau_encoder *nv_partner;
 552         struct i2c_adapter *i2c;
 553         int type;
 554         int ret;
 555         enum drm_connector_status conn_status = connector_status_disconnected;
 556
 557         /* Cleanup the previous EDID block. */
 558         if (nv_connector->edid) {
 559                 drm_connector_update_edid_property(connector, NULL);
 560                 kfree(nv_connector->edid);
 561                 nv_connector->edid = NULL;
 562         }
 563
 564         /* Outputs are only polled while runtime active, so resuming the
 565          * device here is unnecessary (and would deadlock upon runtime suspend
 566          * because it waits for polling to finish). We do however, want to
 567          * prevent the autosuspend timer from elapsing during this operation
 568          * if possible.
 569          */
 570         if (drm_kms_helper_is_poll_worker()) {
 571                 pm_runtime_get_noresume(dev->dev);
 572         } else {
 573                 ret = pm_runtime_get_sync(dev->dev);
 574                 if (ret < 0 && ret != -EACCES) {
 575                         pm_runtime_put_autosuspend(dev->dev);
 576                         return conn_status;
 577                 }
 578         }
 579
 580         nv_encoder = nouveau_connector_ddc_detect(connector);
 581         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 582                 if ((vga_switcheroo_handler_flags() &
 583                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 584                     nv_connector->type == DCB_CONNECTOR_LVDS)
 585                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 586                                                                      i2c);
 587                 else
 588                         nv_connector->edid = drm_get_edid(connector, i2c);
 589
 590                 drm_connector_update_edid_property(connector,
 591                                                         nv_connector->edid);
 592                 if (!nv_connector->edid) {
 593                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 594                                  connector->name);
 595                         goto detect_analog;
 596                 }
 597
 598                 /* Override encoder type for DVI-I based on whether EDID
 599                  * says the display is digital or analog, both use the
 600                  * same i2c channel so the value returned from ddc_detect
 601                  * isn't necessarily correct.
 602                  */
 603                 nv_partner = NULL;
 604                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 605                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 606                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 607                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 608
 609                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 610                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 611                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 612                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 613                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 614                                 type = DCB_OUTPUT_TMDS;
 615                         else
 616                                 type = DCB_OUTPUT_ANALOG;
 617
 618                         nv_encoder = find_encoder(connector, type);
 619                 }
 620
 621                 nouveau_connector_set_encoder(connector, nv_encoder);
 622                 conn_status = connector_status_connected;
 623                 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
 624                 goto out;
 625         }
 626
 627         nv_encoder = nouveau_connector_of_detect(connector);
 628         if (nv_encoder) {
 629                 nouveau_connector_set_encoder(connector, nv_encoder);
 630                 conn_status = connector_status_connected;
 631                 goto out;
 632         }
 633
 634 detect_analog:
 635         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 636         if (!nv_encoder && !nouveau_tv_disable)
 637                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 638         if (nv_encoder && force) {
 639                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 640                 const struct drm_encoder_helper_funcs *helper =
 641                                                 encoder->helper_private;
 642
 643                 if (helper->detect(encoder, connector) ==
 644                                                 connector_status_connected) {
 645                         nouveau_connector_set_encoder(connector, nv_encoder);
 646                         conn_status = connector_status_connected;
 647                         goto out;
 648                 }
 649
 650         }
 651
 652  out:
 653
 654         pm_runtime_mark_last_busy(dev->dev);
 655         pm_runtime_put_autosuspend(dev->dev);
 656
 657         return conn_status;
 658 }
 659
 660 static enum drm_connector_status
 661 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 662 {
 663         struct drm_device *dev = connector->dev;
 664         struct nouveau_drm *drm = nouveau_drm(dev);
 665         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 666         struct nouveau_encoder *nv_encoder = NULL;
 667         enum drm_connector_status status = connector_status_disconnected;
 668
 669         /* Cleanup the previous EDID block. */
 670         if (nv_connector->edid) {
 671                 drm_connector_update_edid_property(connector, NULL);
 672                 kfree(nv_connector->edid);
 673                 nv_connector->edid = NULL;
 674         }
 675
 676         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 677         if (!nv_encoder)
 678                 return connector_status_disconnected;
 679
 680         /* Try retrieving EDID via DDC */
 681         if (!drm->vbios.fp_no_ddc) {
 682                 status = nouveau_connector_detect(connector, force);
 683                 if (status == connector_status_connected)
 684                         goto out;
 685         }
 686
 687         /* On some laptops (Sony, i'm looking at you) there appears to
 688          * be no direct way of accessing the panel's EDID.  The only
 689          * option available to us appears to be to ask ACPI for help..
 690          *
 691          * It's important this check's before trying straps, one of the
 692          * said manufacturer's laptops are configured in such a way
 693          * the nouveau decides an entry in the VBIOS FP mode table is
 694          * valid - it's not (rh#613284)
 695          */
 696         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 697                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 698                         status = connector_status_connected;
 699                         goto out;
 700                 }
 701         }
 702
 703         /* If no EDID found above, and the VBIOS indicates a hardcoded
 704          * modeline is avalilable for the panel, set it as the panel's
 705          * native mode and exit.
 706          */
 707         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 708             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 709                 status = connector_status_connected;
 710                 goto out;
 711         }
 712
 713         /* Still nothing, some VBIOS images have a hardcoded EDID block
 714          * stored for the panel stored in them.
 715          */
 716         if (!drm->vbios.fp_no_ddc) {
 717                 struct edid *edid =
 718                         (struct edid *)nouveau_bios_embedded_edid(dev);
 719                 if (edid) {
 720                         nv_connector->edid =
 721                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 722                         if (nv_connector->edid)
 723                                 status = connector_status_connected;
 724                 }
 725         }
 726
 727 out:
 728 #if defined(CONFIG_ACPI_BUTTON) || \
 729         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 730         if (status == connector_status_connected &&
 731             !nouveau_ignorelid && !acpi_lid_open())
 732                 status = connector_status_unknown;
 733 #endif
 734
 735         drm_connector_update_edid_property(connector, nv_connector->edid);
 736         nouveau_connector_set_encoder(connector, nv_encoder);
 737         return status;
 738 }
 739
 740 static void
 741 nouveau_connector_force(struct drm_connector *connector)
 742 {
 743         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 744         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 745         struct nouveau_encoder *nv_encoder;
 746         int type;
 747
 748         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 749                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 750                         type = DCB_OUTPUT_TMDS;
 751                 else
 752                         type = DCB_OUTPUT_ANALOG;
 753         } else
 754                 type = DCB_OUTPUT_ANY;
 755
 756         nv_encoder = find_encoder(connector, type);
 757         if (!nv_encoder) {
 758                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 759                          connector->name);
 760                 connector->status = connector_status_disconnected;
 761                 return;
 762         }
 763
 764         nouveau_connector_set_encoder(connector, nv_encoder);
 765 }
 766
 767 static int
 768 nouveau_connector_set_property(struct drm_connector *connector,
 769                                struct drm_property *property, uint64_t value)
 770 {
 771         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 772         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 773         struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
 774         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 775         int ret;
 776
 777         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 778                                                     &asyc->state,
 779                                                     property, value);
 780         if (ret) {
 781                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 782                         return get_slave_funcs(encoder)->set_property(
 783                                 encoder, connector, property, value);
 784                 return ret;
 785         }
 786
 787         nv_connector->scaling_mode = asyc->scaler.mode;
 788         nv_connector->dithering_mode = asyc->dither.mode;
 789
 790         if (connector->encoder && connector->encoder->crtc) {
 791                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 792                                               &connector->encoder->crtc->mode,
 793                                                connector->encoder->crtc->x,
 794                                                connector->encoder->crtc->y,
 795                                                NULL);
 796                 if (!ret)
 797                         return -EINVAL;
 798         }
 799
 800         return 0;
 801 }
 802
 803 struct moderec {
 804         int hdisplay;
 805         int vdisplay;
 806 };
 807
 808 static struct moderec scaler_modes[] = {
 809         { 1920, 1200 },
 810         { 1920, 1080 },
 811         { 1680, 1050 },
 812         { 1600, 1200 },
 813         { 1400, 1050 },
 814         { 1280, 1024 },
 815         { 1280, 960 },
 816         { 1152, 864 },
 817         { 1024, 768 },
 818         { 800, 600 },
 819         { 720, 400 },
 820         { 640, 480 },
 821         { 640, 400 },
 822         { 640, 350 },
 823         {}
 824 };
 825
 826 static int
 827 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 828 {
 829         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 830         struct drm_display_mode *native = nv_connector->native_mode, *m;
 831         struct drm_device *dev = connector->dev;
 832         struct moderec *mode = &scaler_modes[0];
 833         int modes = 0;
 834
 835         if (!native)
 836                 return 0;
 837
 838         while (mode->hdisplay) {
 839                 if (mode->hdisplay <= native->hdisplay &&
 840                     mode->vdisplay <= native->vdisplay &&
 841                     (mode->hdisplay != native->hdisplay ||
 842                      mode->vdisplay != native->vdisplay)) {
 843                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 844                                          drm_mode_vrefresh(native), false,
 845                                          false, false);
 846                         if (!m)
 847                                 continue;
 848
 849                         drm_mode_probed_add(connector, m);
 850                         modes++;
 851                 }
 852
 853                 mode++;
 854         }
 855
 856         return modes;
 857 }
 858
 859 static void
 860 nouveau_connector_detect_depth(struct drm_connector *connector)
 861 {
 862         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 863         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 864         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 865         struct nvbios *bios = &drm->vbios;
 866         struct drm_display_mode *mode = nv_connector->native_mode;
 867         bool duallink;
 868
 869         /* if the edid is feeling nice enough to provide this info, use it */
 870         if (nv_connector->edid && connector->display_info.bpc)
 871                 return;
 872
 873         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 874         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 875                 connector->display_info.bpc = 6;
 876                 return;
 877         }
 878
 879         /* we're out of options unless we're LVDS, default to 8bpc */
 880         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 881                 connector->display_info.bpc = 8;
 882                 return;
 883         }
 884
 885         connector->display_info.bpc = 6;
 886
 887         /* LVDS: panel straps */
 888         if (bios->fp_no_ddc) {
 889                 if (bios->fp.if_is_24bit)
 890                         connector->display_info.bpc = 8;
 891                 return;
 892         }
 893
 894         /* LVDS: DDC panel, need to first determine the number of links to
 895          * know which if_is_24bit flag to check...
 896          */
 897         if (nv_connector->edid &&
 898             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 899                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 900         else
 901                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 902
 903         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 904             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 905                 connector->display_info.bpc = 8;
 906 }
 907
 908 static int
 909 nouveau_connector_late_register(struct drm_connector *connector)
 910 {
 911         int ret;
 912
 913         ret = nouveau_backlight_init(connector);
 914
 915         return ret;
 916 }
 917
 918 static void
 919 nouveau_connector_early_unregister(struct drm_connector *connector)
 920 {
 921         nouveau_backlight_fini(connector);
 922 }
 923
 924 static int
 925 nouveau_connector_get_modes(struct drm_connector *connector)
 926 {
 927         struct drm_device *dev = connector->dev;
 928         struct nouveau_drm *drm = nouveau_drm(dev);
 929         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 930         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 931         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 932         int ret = 0;
 933
 934         /* destroy the native mode, the attached monitor could have changed.
 935          */
 936         if (nv_connector->native_mode) {
 937                 drm_mode_destroy(dev, nv_connector->native_mode);
 938                 nv_connector->native_mode = NULL;
 939         }
 940
 941         if (nv_connector->edid)
 942                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 943         else
 944         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 945             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 946              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 947                 struct drm_display_mode mode;
 948
 949                 nouveau_bios_fp_mode(dev, &mode);
 950                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 951         }
 952
 953         /* Determine display colour depth for everything except LVDS now,
 954          * DP requires this before mode_valid() is called.
 955          */
 956         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 957                 nouveau_connector_detect_depth(connector);
 958
 959         /* Find the native mode if this is a digital panel, if we didn't
 960          * find any modes through DDC previously add the native mode to
 961          * the list of modes.
 962          */
 963         if (!nv_connector->native_mode)
 964                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 965         if (ret == 0 && nv_connector->native_mode) {
 966                 struct drm_display_mode *mode;
 967
 968                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 969                 drm_mode_probed_add(connector, mode);
 970                 ret = 1;
 971         }
 972
 973         /* Determine LVDS colour depth, must happen after determining
 974          * "native" mode as some VBIOS tables require us to use the
 975          * pixel clock as part of the lookup...
 976          */
 977         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 978                 nouveau_connector_detect_depth(connector);
 979
 980         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 981                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 982
 983         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 984             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 985             nv_connector->type == DCB_CONNECTOR_eDP)
 986                 ret += nouveau_connector_scaler_modes_add(connector);
 987
 988         return ret;
 989 }
 990
 991 static unsigned
 992 get_tmds_link_bandwidth(struct drm_connector *connector)
 993 {
 994         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 995         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 996         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 997         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 998         struct drm_display_info *info = NULL;
 999         unsigned duallink_scale =
1000                 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1001
1002         if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1003                 info = &nv_connector->base.display_info;
1004                 duallink_scale = 1;
1005         }
1006
1007         if (info) {
1008                 if (nouveau_hdmimhz > 0)
1009                         return nouveau_hdmimhz * 1000;
1010                 /* Note: these limits are conservative, some Fermi's
1011                  * can do 297 MHz. Unclear how this can be determined.
1012                  */
1013                 if (drm->client.device.info.chipset >= 0x120) {
1014                         const int max_tmds_clock =
1015                                 info->hdmi.scdc.scrambling.supported ?
1016                                 594000 : 340000;
1017                         return info->max_tmds_clock ?
1018                                 min(info->max_tmds_clock, max_tmds_clock) :
1019                                 max_tmds_clock;
1020                 }
1021                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1022                         return 297000;
1023                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1024                         return 225000;
1025         }
1026
1027         if (dcb->location != DCB_LOC_ON_CHIP ||
1028             drm->client.device.info.chipset >= 0x46)
1029                 return 165000 * duallink_scale;
1030         else if (drm->client.device.info.chipset >= 0x40)
1031                 return 155000 * duallink_scale;
1032         else if (drm->client.device.info.chipset >= 0x18)
1033                 return 135000 * duallink_scale;
1034         else
1035                 return 112000 * duallink_scale;
1036 }
1037
1038 enum drm_mode_status
1039 nouveau_conn_mode_clock_valid(const struct drm_display_mode *mode,
1040                               const unsigned min_clock,
1041                               const unsigned max_clock,
1042                               unsigned int *clock_out)
1043 {
1044         unsigned int clock = mode->clock;
1045
1046         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) ==
1047             DRM_MODE_FLAG_3D_FRAME_PACKING)
1048                 clock *= 2;
1049
1050         if (clock < min_clock)
1051                 return MODE_CLOCK_LOW;
1052         if (clock > max_clock)
1053                 return MODE_CLOCK_HIGH;
1054
1055         if (clock_out)
1056                 *clock_out = clock;
1057
1058         return MODE_OK;
1059 }
1060
1061 static enum drm_mode_status
1062 nouveau_connector_mode_valid(struct drm_connector *connector,
1063                              struct drm_display_mode *mode)
1064 {
1065         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1066         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1067         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1068         unsigned min_clock = 25000, max_clock = min_clock;
1069
1070         switch (nv_encoder->dcb->type) {
1071         case DCB_OUTPUT_LVDS:
1072                 if (nv_connector->native_mode &&
1073                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1074                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1075                         return MODE_PANEL;
1076
1077                 min_clock = 0;
1078                 max_clock = 400000;
1079                 break;
1080         case DCB_OUTPUT_TMDS:
1081                 max_clock = get_tmds_link_bandwidth(connector);
1082                 break;
1083         case DCB_OUTPUT_ANALOG:
1084                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1085                 if (!max_clock)
1086                         max_clock = 350000;
1087                 break;
1088         case DCB_OUTPUT_TV:
1089                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1090         case DCB_OUTPUT_DP:
1091                 return nv50_dp_mode_valid(connector, nv_encoder, mode, NULL);
1092         default:
1093                 BUG();
1094                 return MODE_BAD;
1095         }
1096
1097         return nouveau_conn_mode_clock_valid(mode, min_clock, max_clock,
1098                                              NULL);
1099 }
1100
1101 static struct drm_encoder *
1102 nouveau_connector_best_encoder(struct drm_connector *connector)
1103 {
1104         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1105
1106         if (nv_connector->detected_encoder)
1107                 return to_drm_encoder(nv_connector->detected_encoder);
1108
1109         return NULL;
1110 }
1111
1112 static const struct drm_connector_helper_funcs
1113 nouveau_connector_helper_funcs = {
1114         .get_modes = nouveau_connector_get_modes,
1115         .mode_valid = nouveau_connector_mode_valid,
1116         .best_encoder = nouveau_connector_best_encoder,
1117 };
1118
1119 static const struct drm_connector_funcs
1120 nouveau_connector_funcs = {
1121         .dpms = drm_helper_connector_dpms,
1122         .reset = nouveau_conn_reset,
1123         .detect = nouveau_connector_detect,
1124         .force = nouveau_connector_force,
1125         .fill_modes = drm_helper_probe_single_connector_modes,
1126         .set_property = nouveau_connector_set_property,
1127         .destroy = nouveau_connector_destroy,
1128         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1129         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1130         .atomic_set_property = nouveau_conn_atomic_set_property,
1131         .atomic_get_property = nouveau_conn_atomic_get_property,
1132         .late_register = nouveau_connector_late_register,
1133         .early_unregister = nouveau_connector_early_unregister,
1134 };
1135
1136 static const struct drm_connector_funcs
1137 nouveau_connector_funcs_lvds = {
1138         .dpms = drm_helper_connector_dpms,
1139         .reset = nouveau_conn_reset,
1140         .detect = nouveau_connector_detect_lvds,
1141         .force = nouveau_connector_force,
1142         .fill_modes = drm_helper_probe_single_connector_modes,
1143         .set_property = nouveau_connector_set_property,
1144         .destroy = nouveau_connector_destroy,
1145         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1146         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1147         .atomic_set_property = nouveau_conn_atomic_set_property,
1148         .atomic_get_property = nouveau_conn_atomic_get_property,
1149         .late_register = nouveau_connector_late_register,
1150         .early_unregister = nouveau_connector_early_unregister,
1151 };
1152
1153 static int
1154 nouveau_connector_hotplug(struct nvif_notify *notify)
1155 {
1156         struct nouveau_connector *nv_connector =
1157                 container_of(notify, typeof(*nv_connector), hpd);
1158         struct drm_connector *connector = &nv_connector->base;
1159         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1160         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1161         const char *name = connector->name;
1162         struct nouveau_encoder *nv_encoder;
1163         int ret;
1164         bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1165
1166         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1167                 NV_DEBUG(drm, "service %s\n", name);
1168                 drm_dp_cec_irq(&nv_connector->aux);
1169                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1170                         nv50_mstm_service(nv_encoder->dp.mstm);
1171
1172                 return NVIF_NOTIFY_KEEP;
1173         }
1174
1175         ret = pm_runtime_get(drm->dev->dev);
1176         if (ret == 0) {
1177                 /* We can't block here if there's a pending PM request
1178                  * running, as we'll deadlock nouveau_display_fini() when it
1179                  * calls nvif_put() on our nvif_notify struct. So, simply
1180                  * defer the hotplug event until the device finishes resuming
1181                  */
1182                 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1183                          name);
1184                 schedule_work(&drm->hpd_work);
1185
1186                 pm_runtime_put_noidle(drm->dev->dev);
1187                 return NVIF_NOTIFY_KEEP;
1188         } else if (ret != 1 && ret != -EACCES) {
1189                 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1190                         name, ret);
1191                 return NVIF_NOTIFY_DROP;
1192         }
1193
1194         if (!plugged)
1195                 drm_dp_cec_unset_edid(&nv_connector->aux);
1196         NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1197         if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1198                 if (!plugged)
1199                         nv50_mstm_remove(nv_encoder->dp.mstm);
1200         }
1201
1202         drm_helper_hpd_irq_event(connector->dev);
1203
1204         pm_runtime_mark_last_busy(drm->dev->dev);
1205         pm_runtime_put_autosuspend(drm->dev->dev);
1206         return NVIF_NOTIFY_KEEP;
1207 }
1208
1209 static ssize_t
1210 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1211 {
1212         struct nouveau_connector *nv_connector =
1213                 container_of(obj, typeof(*nv_connector), aux);
1214         struct nouveau_encoder *nv_encoder;
1215         struct nvkm_i2c_aux *aux;
1216         u8 size = msg->size;
1217         int ret;
1218
1219         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1220         if (!nv_encoder || !(aux = nv_encoder->aux))
1221                 return -ENODEV;
1222         if (WARN_ON(msg->size > 16))
1223                 return -E2BIG;
1224
1225         ret = nvkm_i2c_aux_acquire(aux);
1226         if (ret)
1227                 return ret;
1228
1229         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1230                                 msg->buffer, &size);
1231         nvkm_i2c_aux_release(aux);
1232         if (ret >= 0) {
1233                 msg->reply = ret;
1234                 return size;
1235         }
1236
1237         return ret;
1238 }
1239
1240 static int
1241 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1242 {
1243         switch (dcb) {
1244         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1245         case DCB_CONNECTOR_TV_0     :
1246         case DCB_CONNECTOR_TV_1     :
1247         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1248         case DCB_CONNECTOR_DMS59_0  :
1249         case DCB_CONNECTOR_DMS59_1  :
1250         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1251         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1252         case DCB_CONNECTOR_LVDS     :
1253         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1254         case DCB_CONNECTOR_DMS59_DP0:
1255         case DCB_CONNECTOR_DMS59_DP1:
1256         case DCB_CONNECTOR_DP       :
1257         case DCB_CONNECTOR_USB_C    : return DRM_MODE_CONNECTOR_DisplayPort;
1258         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1259         case DCB_CONNECTOR_HDMI_0   :
1260         case DCB_CONNECTOR_HDMI_1   :
1261         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1262         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1263         default:
1264                 break;
1265         }
1266
1267         return DRM_MODE_CONNECTOR_Unknown;
1268 }
1269
1270 struct drm_connector *
1271 nouveau_connector_create(struct drm_device *dev,
1272                          const struct dcb_output *dcbe)
1273 {
1274         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1275         struct nouveau_drm *drm = nouveau_drm(dev);
1276         struct nouveau_display *disp = nouveau_display(dev);
1277         struct nouveau_connector *nv_connector = NULL;
1278         struct drm_connector *connector;
1279         struct drm_connector_list_iter conn_iter;
1280         char aux_name[48] = {0};
1281         int index = dcbe->connector;
1282         int type, ret = 0;
1283         bool dummy;
1284
1285         drm_connector_list_iter_begin(dev, &conn_iter);
1286         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1287                 nv_connector = nouveau_connector(connector);
1288                 if (nv_connector->index == index) {
1289                         drm_connector_list_iter_end(&conn_iter);
1290                         return connector;
1291                 }
1292         }
1293         drm_connector_list_iter_end(&conn_iter);
1294
1295         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1296         if (!nv_connector)
1297                 return ERR_PTR(-ENOMEM);
1298
1299         connector = &nv_connector->base;
1300         nv_connector->index = index;
1301
1302         /* attempt to parse vbios connector type and hotplug gpio */
1303         nv_connector->dcb = olddcb_conn(dev, index);
1304         if (nv_connector->dcb) {
1305                 u32 entry = ROM16(nv_connector->dcb[0]);
1306                 if (olddcb_conntab(dev)[3] >= 4)
1307                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1308
1309                 nv_connector->type = nv_connector->dcb[0];
1310                 if (drm_conntype_from_dcb(nv_connector->type) ==
1311                                           DRM_MODE_CONNECTOR_Unknown) {
1312                         NV_WARN(drm, "unknown connector type %02x\n",
1313                                 nv_connector->type);
1314                         nv_connector->type = DCB_CONNECTOR_NONE;
1315                 }
1316
1317                 /* Gigabyte NX85T */
1318                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1319                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1320                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1321                 }
1322
1323                 /* Gigabyte GV-NX86T512H */
1324                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1325                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1326                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1327                 }
1328         } else {
1329                 nv_connector->type = DCB_CONNECTOR_NONE;
1330         }
1331
1332         /* no vbios data, or an unknown dcb connector type - attempt to
1333          * figure out something suitable ourselves
1334          */
1335         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1336                 struct nouveau_drm *drm = nouveau_drm(dev);
1337                 struct dcb_table *dcbt = &drm->vbios.dcb;
1338                 u32 encoders = 0;
1339                 int i;
1340
1341                 for (i = 0; i < dcbt->entries; i++) {
1342                         if (dcbt->entry[i].connector == nv_connector->index)
1343                                 encoders |= (1 << dcbt->entry[i].type);
1344                 }
1345
1346                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1347                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1348                                 nv_connector->type = DCB_CONNECTOR_DP;
1349                         else
1350                                 nv_connector->type = DCB_CONNECTOR_eDP;
1351                 } else
1352                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1353                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1354                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1355                         else
1356                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1357                 } else
1358                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1359                         nv_connector->type = DCB_CONNECTOR_VGA;
1360                 } else
1361                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1362                         nv_connector->type = DCB_CONNECTOR_LVDS;
1363                 } else
1364                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1365                         nv_connector->type = DCB_CONNECTOR_TV_0;
1366                 }
1367         }
1368
1369         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1370         case DRM_MODE_CONNECTOR_LVDS:
1371                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1372                 if (ret) {
1373                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1374                         kfree(nv_connector);
1375                         return ERR_PTR(ret);
1376                 }
1377
1378                 funcs = &nouveau_connector_funcs_lvds;
1379                 break;
1380         case DRM_MODE_CONNECTOR_DisplayPort:
1381         case DRM_MODE_CONNECTOR_eDP:
1382                 nv_connector->aux.dev = connector->kdev;
1383                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1384                 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1385                          dcbe->hasht, dcbe->hashm);
1386                 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1387                 ret = drm_dp_aux_register(&nv_connector->aux);
1388                 if (ret) {
1389                         NV_ERROR(drm, "failed to register aux channel\n");
1390                         kfree(nv_connector);
1391                         return ERR_PTR(ret);
1392                 }
1393                 funcs = &nouveau_connector_funcs;
1394                 break;
1395         default:
1396                 funcs = &nouveau_connector_funcs;
1397                 break;
1398         }
1399
1400         /* HDMI 3D support */
1401         if ((disp->disp.object.oclass >= G82_DISP)
1402             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1403                 || (type == DRM_MODE_CONNECTOR_eDP)
1404                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1405                 connector->stereo_allowed = true;
1406
1407         /* defaults, will get overridden in detect() */
1408         connector->interlace_allowed = false;
1409         connector->doublescan_allowed = false;
1410
1411         drm_connector_init(dev, connector, funcs, type);
1412         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1413
1414         connector->funcs->reset(connector);
1415         nouveau_conn_attach_properties(connector);
1416
1417         /* Default scaling mode */
1418         switch (nv_connector->type) {
1419         case DCB_CONNECTOR_LVDS:
1420         case DCB_CONNECTOR_LVDS_SPWG:
1421         case DCB_CONNECTOR_eDP:
1422                 /* see note in nouveau_connector_set_property() */
1423                 if (disp->disp.object.oclass < NV50_DISP) {
1424                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1425                         break;
1426                 }
1427                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1428                 break;
1429         default:
1430                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1431                 break;
1432         }
1433
1434         /* dithering properties */
1435         switch (nv_connector->type) {
1436         case DCB_CONNECTOR_TV_0:
1437         case DCB_CONNECTOR_TV_1:
1438         case DCB_CONNECTOR_TV_3:
1439         case DCB_CONNECTOR_VGA:
1440                 break;
1441         default:
1442                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1443                 break;
1444         }
1445
1446         switch (type) {
1447         case DRM_MODE_CONNECTOR_DisplayPort:
1448         case DRM_MODE_CONNECTOR_eDP:
1449                 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1450                 break;
1451         }
1452
1453         ret = nvif_notify_ctor(&disp->disp.object, "kmsHotplug",
1454                                nouveau_connector_hotplug,
1455                                true, NV04_DISP_NTFY_CONN,
1456                                &(struct nvif_notify_conn_req_v0) {
1457                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1458                                 .conn = index,
1459                                },
1460                                sizeof(struct nvif_notify_conn_req_v0),
1461                                sizeof(struct nvif_notify_conn_rep_v0),
1462                                &nv_connector->hpd);
1463         if (ret)
1464                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1465         else
1466                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1467
1468         drm_connector_register(connector);
1469         return connector;
1470 }