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                         break;
 161                 case DRM_MODE_SCALE_FULLSCREEN:
 162                 case DRM_MODE_SCALE_CENTER:
 163                 case DRM_MODE_SCALE_ASPECT:
 164                         break;
 165                 default:
 166                         return -EINVAL;
 167                 }
 168
 169                 if (asyc->scaler.mode != val) {
 170                         asyc->scaler.mode = val;
 171                         asyc->set.scaler = true;
 172                 }
 173         } else
 174         if (property == disp->underscan_property) {
 175                 if (asyc->scaler.underscan.mode != val) {
 176                         asyc->scaler.underscan.mode = val;
 177                         asyc->set.scaler = true;
 178                 }
 179         } else
 180         if (property == disp->underscan_hborder_property) {
 181                 if (asyc->scaler.underscan.hborder != val) {
 182                         asyc->scaler.underscan.hborder = val;
 183                         asyc->set.scaler = true;
 184                 }
 185         } else
 186         if (property == disp->underscan_vborder_property) {
 187                 if (asyc->scaler.underscan.vborder != val) {
 188                         asyc->scaler.underscan.vborder = val;
 189                         asyc->set.scaler = true;
 190                 }
 191         } else
 192         if (property == disp->dithering_mode) {
 193                 if (asyc->dither.mode != val) {
 194                         asyc->dither.mode = val;
 195                         asyc->set.dither = true;
 196                 }
 197         } else
 198         if (property == disp->dithering_depth) {
 199                 if (asyc->dither.mode != val) {
 200                         asyc->dither.depth = val;
 201                         asyc->set.dither = true;
 202                 }
 203         } else
 204         if (property == disp->vibrant_hue_property) {
 205                 if (asyc->procamp.vibrant_hue != val) {
 206                         asyc->procamp.vibrant_hue = val;
 207                         asyc->set.procamp = true;
 208                 }
 209         } else
 210         if (property == disp->color_vibrance_property) {
 211                 if (asyc->procamp.color_vibrance != val) {
 212                         asyc->procamp.color_vibrance = val;
 213                         asyc->set.procamp = true;
 214                 }
 215         } else {
 216                 return -EINVAL;
 217         }
 218
 219         return 0;
 220 }
 221
 222 void
 223 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
 224                                   struct drm_connector_state *state)
 225 {
 226         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 227         __drm_atomic_helper_connector_destroy_state(&asyc->state);
 228         kfree(asyc);
 229 }
 230
 231 struct drm_connector_state *
 232 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
 233 {
 234         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 235         struct nouveau_conn_atom *asyc;
 236         if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
 237                 return NULL;
 238         __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
 239         asyc->dither = armc->dither;
 240         asyc->scaler = armc->scaler;
 241         asyc->procamp = armc->procamp;
 242         asyc->set.mask = 0;
 243         return &asyc->state;
 244 }
 245
 246 void
 247 nouveau_conn_reset(struct drm_connector *connector)
 248 {
 249         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 250         struct nouveau_conn_atom *asyc;
 251
 252         if (drm_drv_uses_atomic_modeset(connector->dev)) {
 253                 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 254                         return;
 255
 256                 if (connector->state)
 257                         nouveau_conn_atomic_destroy_state(connector,
 258                                                           connector->state);
 259
 260                 __drm_atomic_helper_connector_reset(connector, &asyc->state);
 261         } else {
 262                 asyc = &nv_connector->properties_state;
 263         }
 264
 265         asyc->dither.mode = DITHERING_MODE_AUTO;
 266         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 267         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 268         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 269         asyc->procamp.color_vibrance = 150;
 270         asyc->procamp.vibrant_hue = 90;
 271
 272         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 273                 switch (connector->connector_type) {
 274                 case DRM_MODE_CONNECTOR_LVDS:
 275                         /* See note in nouveau_conn_atomic_set_property(). */
 276                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 277                         break;
 278                 default:
 279                         break;
 280                 }
 281         }
 282 }
 283
 284 void
 285 nouveau_conn_attach_properties(struct drm_connector *connector)
 286 {
 287         struct drm_device *dev = connector->dev;
 288         struct nouveau_display *disp = nouveau_display(dev);
 289         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 290         struct nouveau_conn_atom *armc;
 291
 292         if (drm_drv_uses_atomic_modeset(connector->dev))
 293                 armc = nouveau_conn_atom(connector->state);
 294         else
 295                 armc = &nv_connector->properties_state;
 296
 297         /* Init DVI-I specific properties. */
 298         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 299                 drm_object_attach_property(&connector->base, dev->mode_config.
 300                                            dvi_i_subconnector_property, 0);
 301
 302         /* Add overscan compensation options to digital outputs. */
 303         if (disp->underscan_property &&
 304             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 305              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 306              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 307              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 308                 drm_object_attach_property(&connector->base,
 309                                            disp->underscan_property,
 310                                            UNDERSCAN_OFF);
 311                 drm_object_attach_property(&connector->base,
 312                                            disp->underscan_hborder_property, 0);
 313                 drm_object_attach_property(&connector->base,
 314                                            disp->underscan_vborder_property, 0);
 315         }
 316
 317         /* Add hue and saturation options. */
 318         if (disp->vibrant_hue_property)
 319                 drm_object_attach_property(&connector->base,
 320                                            disp->vibrant_hue_property,
 321                                            armc->procamp.vibrant_hue);
 322         if (disp->color_vibrance_property)
 323                 drm_object_attach_property(&connector->base,
 324                                            disp->color_vibrance_property,
 325                                            armc->procamp.color_vibrance);
 326
 327         /* Scaling mode property. */
 328         switch (connector->connector_type) {
 329         case DRM_MODE_CONNECTOR_TV:
 330                 break;
 331         case DRM_MODE_CONNECTOR_VGA:
 332                 if (disp->disp.object.oclass < NV50_DISP)
 333                         break; /* Can only scale on DFPs. */
 334                 fallthrough;
 335         default:
 336                 drm_object_attach_property(&connector->base, dev->mode_config.
 337                                            scaling_mode_property,
 338                                            armc->scaler.mode);
 339                 break;
 340         }
 341
 342         /* Dithering properties. */
 343         switch (connector->connector_type) {
 344         case DRM_MODE_CONNECTOR_TV:
 345         case DRM_MODE_CONNECTOR_VGA:
 346                 break;
 347         default:
 348                 if (disp->dithering_mode) {
 349                         drm_object_attach_property(&connector->base,
 350                                                    disp->dithering_mode,
 351                                                    armc->dither.mode);
 352                 }
 353                 if (disp->dithering_depth) {
 354                         drm_object_attach_property(&connector->base,
 355                                                    disp->dithering_depth,
 356                                                    armc->dither.depth);
 357                 }
 358                 break;
 359         }
 360 }
 361
 362 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 363 int nouveau_tv_disable = 0;
 364 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 365
 366 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 367 int nouveau_ignorelid = 0;
 368 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 369
 370 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 371 int nouveau_duallink = 1;
 372 module_param_named(duallink, nouveau_duallink, int, 0400);
 373
 374 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 375 int nouveau_hdmimhz = 0;
 376 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 377
 378 struct nouveau_encoder *
 379 find_encoder(struct drm_connector *connector, int type)
 380 {
 381         struct nouveau_encoder *nv_encoder;
 382         struct drm_encoder *enc;
 383
 384         drm_connector_for_each_possible_encoder(connector, enc) {
 385                 nv_encoder = nouveau_encoder(enc);
 386
 387                 if (type == DCB_OUTPUT_ANY ||
 388                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 389                         return nv_encoder;
 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_dtor(&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_cec_unregister_connector(&nv_connector->aux);
 405                 kfree(nv_connector->aux.name);
 406         }
 407         kfree(connector);
 408 }
 409
 410 static struct nouveau_encoder *
 411 nouveau_connector_ddc_detect(struct drm_connector *connector)
 412 {
 413         struct drm_device *dev = connector->dev;
 414         struct pci_dev *pdev = to_pci_dev(dev->dev);
 415         struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
 416         struct drm_encoder *encoder;
 417         int ret;
 418         bool switcheroo_ddc = false;
 419
 420         drm_connector_for_each_possible_encoder(connector, encoder) {
 421                 nv_encoder = nouveau_encoder(encoder);
 422
 423                 switch (nv_encoder->dcb->type) {
 424                 case DCB_OUTPUT_DP:
 425                         ret = nouveau_dp_detect(nouveau_connector(connector),
 426                                                 nv_encoder);
 427                         if (ret == NOUVEAU_DP_MST)
 428                                 return NULL;
 429                         else if (ret == NOUVEAU_DP_SST)
 430                                 found = nv_encoder;
 431
 432                         break;
 433                 case DCB_OUTPUT_LVDS:
 434                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 435                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 436                         fallthrough;
 437                 default:
 438                         if (!nv_encoder->i2c)
 439                                 break;
 440
 441                         if (switcheroo_ddc)
 442                                 vga_switcheroo_lock_ddc(pdev);
 443                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 444                                 found = nv_encoder;
 445                         if (switcheroo_ddc)
 446                                 vga_switcheroo_unlock_ddc(pdev);
 447
 448                         break;
 449                 }
 450                 if (found)
 451                         break;
 452         }
 453
 454         return found;
 455 }
 456
 457 static struct nouveau_encoder *
 458 nouveau_connector_of_detect(struct drm_connector *connector)
 459 {
 460 #ifdef __powerpc__
 461         struct drm_device *dev = connector->dev;
 462         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 463         struct nouveau_encoder *nv_encoder;
 464         struct pci_dev *pdev = to_pci_dev(dev->dev);
 465         struct device_node *cn, *dn = pci_device_to_OF_node(pdev);
 466
 467         if (!dn ||
 468             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 469               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 470                 return NULL;
 471
 472         for_each_child_of_node(dn, cn) {
 473                 const char *name = of_get_property(cn, "name", NULL);
 474                 const void *edid = of_get_property(cn, "EDID", NULL);
 475                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 476
 477                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 478                         nv_connector->edid =
 479                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 480                         of_node_put(cn);
 481                         return nv_encoder;
 482                 }
 483         }
 484 #endif
 485         return NULL;
 486 }
 487
 488 static void
 489 nouveau_connector_set_encoder(struct drm_connector *connector,
 490                               struct nouveau_encoder *nv_encoder)
 491 {
 492         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 493         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 494         struct drm_device *dev = connector->dev;
 495         struct pci_dev *pdev = to_pci_dev(dev->dev);
 496
 497         if (nv_connector->detected_encoder == nv_encoder)
 498                 return;
 499         nv_connector->detected_encoder = nv_encoder;
 500
 501         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 502                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
 503                         connector->interlace_allowed =
 504                                 nv_encoder->caps.dp_interlace;
 505                 else
 506                         connector->interlace_allowed = true;
 507                 connector->doublescan_allowed = true;
 508         } else
 509         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 510             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 511                 connector->doublescan_allowed = false;
 512                 connector->interlace_allowed = false;
 513         } else {
 514                 connector->doublescan_allowed = true;
 515                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 516                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 517                      (pdev->device & 0x0ff0) != 0x0100 &&
 518                      (pdev->device & 0x0ff0) != 0x0150))
 519                         /* HW is broken */
 520                         connector->interlace_allowed = false;
 521                 else
 522                         connector->interlace_allowed = true;
 523         }
 524
 525         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 526                 drm_object_property_set_value(&connector->base,
 527                         dev->mode_config.dvi_i_subconnector_property,
 528                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 529                         DRM_MODE_SUBCONNECTOR_DVID :
 530                         DRM_MODE_SUBCONNECTOR_DVIA);
 531         }
 532 }
 533
 534 static void
 535 nouveau_connector_set_edid(struct nouveau_connector *nv_connector,
 536                            struct edid *edid)
 537 {
 538         if (nv_connector->edid != edid) {
 539                 struct edid *old_edid = nv_connector->edid;
 540
 541                 drm_connector_update_edid_property(&nv_connector->base, edid);
 542                 kfree(old_edid);
 543                 nv_connector->edid = edid;
 544         }
 545 }
 546
 547 static enum drm_connector_status
 548 nouveau_connector_detect(struct drm_connector *connector, bool force)
 549 {
 550         struct drm_device *dev = connector->dev;
 551         struct nouveau_drm *drm = nouveau_drm(dev);
 552         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 553         struct nouveau_encoder *nv_encoder = NULL;
 554         struct nouveau_encoder *nv_partner;
 555         struct i2c_adapter *i2c;
 556         int type;
 557         int ret;
 558         enum drm_connector_status conn_status = connector_status_disconnected;
 559
 560         /* Outputs are only polled while runtime active, so resuming the
 561          * device here is unnecessary (and would deadlock upon runtime suspend
 562          * because it waits for polling to finish). We do however, want to
 563          * prevent the autosuspend timer from elapsing during this operation
 564          * if possible.
 565          */
 566         if (drm_kms_helper_is_poll_worker()) {
 567                 pm_runtime_get_noresume(dev->dev);
 568         } else {
 569                 ret = pm_runtime_get_sync(dev->dev);
 570                 if (ret < 0 && ret != -EACCES) {
 571                         pm_runtime_put_autosuspend(dev->dev);
 572                         nouveau_connector_set_edid(nv_connector, NULL);
 573                         return conn_status;
 574                 }
 575         }
 576
 577         nv_encoder = nouveau_connector_ddc_detect(connector);
 578         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 579                 struct edid *new_edid;
 580
 581                 if ((vga_switcheroo_handler_flags() &
 582                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 583                     nv_connector->type == DCB_CONNECTOR_LVDS)
 584                         new_edid = drm_get_edid_switcheroo(connector, i2c);
 585                 else
 586                         new_edid = drm_get_edid(connector, i2c);
 587
 588                 nouveau_connector_set_edid(nv_connector, new_edid);
 589                 if (!nv_connector->edid) {
 590                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 591                                  connector->name);
 592                         goto detect_analog;
 593                 }
 594
 595                 /* Override encoder type for DVI-I based on whether EDID
 596                  * says the display is digital or analog, both use the
 597                  * same i2c channel so the value returned from ddc_detect
 598                  * isn't necessarily correct.
 599                  */
 600                 nv_partner = NULL;
 601                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 602                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 603                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 604                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 605
 606                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 607                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 608                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 609                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 610                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 611                                 type = DCB_OUTPUT_TMDS;
 612                         else
 613                                 type = DCB_OUTPUT_ANALOG;
 614
 615                         nv_encoder = find_encoder(connector, type);
 616                 }
 617
 618                 nouveau_connector_set_encoder(connector, nv_encoder);
 619                 conn_status = connector_status_connected;
 620                 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
 621                 goto out;
 622         } else {
 623                 nouveau_connector_set_edid(nv_connector, NULL);
 624         }
 625
 626         nv_encoder = nouveau_connector_of_detect(connector);
 627         if (nv_encoder) {
 628                 nouveau_connector_set_encoder(connector, nv_encoder);
 629                 conn_status = connector_status_connected;
 630                 goto out;
 631         }
 632
 633 detect_analog:
 634         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 635         if (!nv_encoder && !nouveau_tv_disable)
 636                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 637         if (nv_encoder && force) {
 638                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 639                 const struct drm_encoder_helper_funcs *helper =
 640                                                 encoder->helper_private;
 641
 642                 if (helper->detect(encoder, connector) ==
 643                                                 connector_status_connected) {
 644                         nouveau_connector_set_encoder(connector, nv_encoder);
 645                         conn_status = connector_status_connected;
 646                         goto out;
 647                 }
 648         }
 649
 650  out:
 651         if (!nv_connector->edid)
 652                 drm_dp_cec_unset_edid(&nv_connector->aux);
 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         struct edid *edid = NULL;
 668         enum drm_connector_status status = connector_status_disconnected;
 669
 670         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 671         if (!nv_encoder)
 672                 goto out;
 673
 674         /* Try retrieving EDID via DDC */
 675         if (!drm->vbios.fp_no_ddc) {
 676                 status = nouveau_connector_detect(connector, force);
 677                 if (status == connector_status_connected) {
 678                         edid = nv_connector->edid;
 679                         goto out;
 680                 }
 681         }
 682
 683         /* On some laptops (Sony, i'm looking at you) there appears to
 684          * be no direct way of accessing the panel's EDID.  The only
 685          * option available to us appears to be to ask ACPI for help..
 686          *
 687          * It's important this check's before trying straps, one of the
 688          * said manufacturer's laptops are configured in such a way
 689          * the nouveau decides an entry in the VBIOS FP mode table is
 690          * valid - it's not (rh#613284)
 691          */
 692         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 693                 edid = nouveau_acpi_edid(dev, connector);
 694                 if (edid) {
 695                         status = connector_status_connected;
 696                         goto out;
 697                 }
 698         }
 699
 700         /* If no EDID found above, and the VBIOS indicates a hardcoded
 701          * modeline is avalilable for the panel, set it as the panel's
 702          * native mode and exit.
 703          */
 704         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 705             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 706                 status = connector_status_connected;
 707                 goto out;
 708         }
 709
 710         /* Still nothing, some VBIOS images have a hardcoded EDID block
 711          * stored for the panel stored in them.
 712          */
 713         if (!drm->vbios.fp_no_ddc) {
 714                 edid = (struct edid *)nouveau_bios_embedded_edid(dev);
 715                 if (edid) {
 716                         edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 717                         if (edid)
 718                                 status = connector_status_connected;
 719                 }
 720         }
 721
 722 out:
 723 #if defined(CONFIG_ACPI_BUTTON) || \
 724         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 725         if (status == connector_status_connected &&
 726             !nouveau_ignorelid && !acpi_lid_open())
 727                 status = connector_status_unknown;
 728 #endif
 729
 730         nouveau_connector_set_edid(nv_connector, edid);
 731         nouveau_connector_set_encoder(connector, nv_encoder);
 732         return status;
 733 }
 734
 735 static void
 736 nouveau_connector_force(struct drm_connector *connector)
 737 {
 738         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 739         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 740         struct nouveau_encoder *nv_encoder;
 741         int type;
 742
 743         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 744                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 745                         type = DCB_OUTPUT_TMDS;
 746                 else
 747                         type = DCB_OUTPUT_ANALOG;
 748         } else
 749                 type = DCB_OUTPUT_ANY;
 750
 751         nv_encoder = find_encoder(connector, type);
 752         if (!nv_encoder) {
 753                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 754                          connector->name);
 755                 connector->status = connector_status_disconnected;
 756                 return;
 757         }
 758
 759         nouveau_connector_set_encoder(connector, nv_encoder);
 760 }
 761
 762 static int
 763 nouveau_connector_set_property(struct drm_connector *connector,
 764                                struct drm_property *property, uint64_t value)
 765 {
 766         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 767         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 768         struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
 769         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 770         int ret;
 771
 772         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 773                                                     &asyc->state,
 774                                                     property, value);
 775         if (ret) {
 776                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 777                         return get_slave_funcs(encoder)->set_property(
 778                                 encoder, connector, property, value);
 779                 return ret;
 780         }
 781
 782         nv_connector->scaling_mode = asyc->scaler.mode;
 783         nv_connector->dithering_mode = asyc->dither.mode;
 784
 785         if (connector->encoder && connector->encoder->crtc) {
 786                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 787                                               &connector->encoder->crtc->mode,
 788                                                connector->encoder->crtc->x,
 789                                                connector->encoder->crtc->y,
 790                                                NULL);
 791                 if (!ret)
 792                         return -EINVAL;
 793         }
 794
 795         return 0;
 796 }
 797
 798 struct moderec {
 799         int hdisplay;
 800         int vdisplay;
 801 };
 802
 803 static struct moderec scaler_modes[] = {
 804         { 1920, 1200 },
 805         { 1920, 1080 },
 806         { 1680, 1050 },
 807         { 1600, 1200 },
 808         { 1400, 1050 },
 809         { 1280, 1024 },
 810         { 1280, 960 },
 811         { 1152, 864 },
 812         { 1024, 768 },
 813         { 800, 600 },
 814         { 720, 400 },
 815         { 640, 480 },
 816         { 640, 400 },
 817         { 640, 350 },
 818         {}
 819 };
 820
 821 static int
 822 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 823 {
 824         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 825         struct drm_display_mode *native = nv_connector->native_mode, *m;
 826         struct drm_device *dev = connector->dev;
 827         struct moderec *mode = &scaler_modes[0];
 828         int modes = 0;
 829
 830         if (!native)
 831                 return 0;
 832
 833         while (mode->hdisplay) {
 834                 if (mode->hdisplay <= native->hdisplay &&
 835                     mode->vdisplay <= native->vdisplay &&
 836                     (mode->hdisplay != native->hdisplay ||
 837                      mode->vdisplay != native->vdisplay)) {
 838                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 839                                          drm_mode_vrefresh(native), false,
 840                                          false, false);
 841                         if (!m)
 842                                 continue;
 843
 844                         drm_mode_probed_add(connector, m);
 845                         modes++;
 846                 }
 847
 848                 mode++;
 849         }
 850
 851         return modes;
 852 }
 853
 854 static void
 855 nouveau_connector_detect_depth(struct drm_connector *connector)
 856 {
 857         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 858         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 859         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 860         struct nvbios *bios = &drm->vbios;
 861         struct drm_display_mode *mode = nv_connector->native_mode;
 862         bool duallink;
 863
 864         /* if the edid is feeling nice enough to provide this info, use it */
 865         if (nv_connector->edid && connector->display_info.bpc)
 866                 return;
 867
 868         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 869         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 870                 connector->display_info.bpc = 6;
 871                 return;
 872         }
 873
 874         /* we're out of options unless we're LVDS, default to 8bpc */
 875         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 876                 connector->display_info.bpc = 8;
 877                 return;
 878         }
 879
 880         connector->display_info.bpc = 6;
 881
 882         /* LVDS: panel straps */
 883         if (bios->fp_no_ddc) {
 884                 if (bios->fp.if_is_24bit)
 885                         connector->display_info.bpc = 8;
 886                 return;
 887         }
 888
 889         /* LVDS: DDC panel, need to first determine the number of links to
 890          * know which if_is_24bit flag to check...
 891          */
 892         if (nv_connector->edid &&
 893             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 894                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 895         else
 896                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 897
 898         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 899             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 900                 connector->display_info.bpc = 8;
 901 }
 902
 903 static int
 904 nouveau_connector_late_register(struct drm_connector *connector)
 905 {
 906         int ret;
 907
 908         ret = nouveau_backlight_init(connector);
 909         if (ret)
 910                 return ret;
 911
 912         if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
 913             connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
 914                 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
 915                 if (ret)
 916                         goto backlight_fini;
 917         }
 918
 919         return 0;
 920 backlight_fini:
 921         nouveau_backlight_fini(connector);
 922         return ret;
 923 }
 924
 925 static void
 926 nouveau_connector_early_unregister(struct drm_connector *connector)
 927 {
 928         if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
 929             connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
 930                 drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
 931
 932         nouveau_backlight_fini(connector);
 933 }
 934
 935 static int
 936 nouveau_connector_get_modes(struct drm_connector *connector)
 937 {
 938         struct drm_device *dev = connector->dev;
 939         struct nouveau_drm *drm = nouveau_drm(dev);
 940         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 941         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 942         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 943         int ret = 0;
 944
 945         /* destroy the native mode, the attached monitor could have changed.
 946          */
 947         if (nv_connector->native_mode) {
 948                 drm_mode_destroy(dev, nv_connector->native_mode);
 949                 nv_connector->native_mode = NULL;
 950         }
 951
 952         if (nv_connector->edid)
 953                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 954         else
 955         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 956             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 957              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 958                 struct drm_display_mode mode;
 959
 960                 nouveau_bios_fp_mode(dev, &mode);
 961                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 962         }
 963
 964         /* Determine display colour depth for everything except LVDS now,
 965          * DP requires this before mode_valid() is called.
 966          */
 967         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 968                 nouveau_connector_detect_depth(connector);
 969
 970         /* Find the native mode if this is a digital panel, if we didn't
 971          * find any modes through DDC previously add the native mode to
 972          * the list of modes.
 973          */
 974         if (!nv_connector->native_mode)
 975                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 976         if (ret == 0 && nv_connector->native_mode) {
 977                 struct drm_display_mode *mode;
 978
 979                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 980                 drm_mode_probed_add(connector, mode);
 981                 ret = 1;
 982         }
 983
 984         /* Determine LVDS colour depth, must happen after determining
 985          * "native" mode as some VBIOS tables require us to use the
 986          * pixel clock as part of the lookup...
 987          */
 988         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 989                 nouveau_connector_detect_depth(connector);
 990
 991         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 992                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 993
 994         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 995             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 996             nv_connector->type == DCB_CONNECTOR_eDP)
 997                 ret += nouveau_connector_scaler_modes_add(connector);
 998
 999         return ret;
1000 }
1001
1002 static unsigned
1003 get_tmds_link_bandwidth(struct drm_connector *connector)
1004 {
1005         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1006         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1007         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1008         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1009         struct drm_display_info *info = NULL;
1010         unsigned duallink_scale =
1011                 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1012
1013         if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1014                 info = &nv_connector->base.display_info;
1015                 duallink_scale = 1;
1016         }
1017
1018         if (info) {
1019                 if (nouveau_hdmimhz > 0)
1020                         return nouveau_hdmimhz * 1000;
1021                 /* Note: these limits are conservative, some Fermi's
1022                  * can do 297 MHz. Unclear how this can be determined.
1023                  */
1024                 if (drm->client.device.info.chipset >= 0x120) {
1025                         const int max_tmds_clock =
1026                                 info->hdmi.scdc.scrambling.supported ?
1027                                 594000 : 340000;
1028                         return info->max_tmds_clock ?
1029                                 min(info->max_tmds_clock, max_tmds_clock) :
1030                                 max_tmds_clock;
1031                 }
1032                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1033                         return 297000;
1034                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1035                         return 225000;
1036         }
1037
1038         if (dcb->location != DCB_LOC_ON_CHIP ||
1039             drm->client.device.info.chipset >= 0x46)
1040                 return 165000 * duallink_scale;
1041         else if (drm->client.device.info.chipset >= 0x40)
1042                 return 155000 * duallink_scale;
1043         else if (drm->client.device.info.chipset >= 0x18)
1044                 return 135000 * duallink_scale;
1045         else
1046                 return 112000 * duallink_scale;
1047 }
1048
1049 static enum drm_mode_status
1050 nouveau_connector_mode_valid(struct drm_connector *connector,
1051                              struct drm_display_mode *mode)
1052 {
1053         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1054         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1055         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1056         unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
1057
1058         switch (nv_encoder->dcb->type) {
1059         case DCB_OUTPUT_LVDS:
1060                 if (nv_connector->native_mode &&
1061                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1062                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1063                         return MODE_PANEL;
1064
1065                 min_clock = 0;
1066                 max_clock = 400000;
1067                 break;
1068         case DCB_OUTPUT_TMDS:
1069                 max_clock = get_tmds_link_bandwidth(connector);
1070                 break;
1071         case DCB_OUTPUT_ANALOG:
1072                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1073                 if (!max_clock)
1074                         max_clock = 350000;
1075                 break;
1076         case DCB_OUTPUT_TV:
1077                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1078         case DCB_OUTPUT_DP:
1079                 return nv50_dp_mode_valid(connector, nv_encoder, mode, NULL);
1080         default:
1081                 BUG();
1082                 return MODE_BAD;
1083         }
1084
1085         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1086                 clock *= 2;
1087
1088         if (clock < min_clock)
1089                 return MODE_CLOCK_LOW;
1090         if (clock > max_clock)
1091                 return MODE_CLOCK_HIGH;
1092
1093         return MODE_OK;
1094 }
1095
1096 static struct drm_encoder *
1097 nouveau_connector_best_encoder(struct drm_connector *connector)
1098 {
1099         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1100
1101         if (nv_connector->detected_encoder)
1102                 return to_drm_encoder(nv_connector->detected_encoder);
1103
1104         return NULL;
1105 }
1106
1107 static const struct drm_connector_helper_funcs
1108 nouveau_connector_helper_funcs = {
1109         .get_modes = nouveau_connector_get_modes,
1110         .mode_valid = nouveau_connector_mode_valid,
1111         .best_encoder = nouveau_connector_best_encoder,
1112 };
1113
1114 static const struct drm_connector_funcs
1115 nouveau_connector_funcs = {
1116         .dpms = drm_helper_connector_dpms,
1117         .reset = nouveau_conn_reset,
1118         .detect = nouveau_connector_detect,
1119         .force = nouveau_connector_force,
1120         .fill_modes = drm_helper_probe_single_connector_modes,
1121         .set_property = nouveau_connector_set_property,
1122         .destroy = nouveau_connector_destroy,
1123         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1124         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1125         .atomic_set_property = nouveau_conn_atomic_set_property,
1126         .atomic_get_property = nouveau_conn_atomic_get_property,
1127         .late_register = nouveau_connector_late_register,
1128         .early_unregister = nouveau_connector_early_unregister,
1129 };
1130
1131 static const struct drm_connector_funcs
1132 nouveau_connector_funcs_lvds = {
1133         .dpms = drm_helper_connector_dpms,
1134         .reset = nouveau_conn_reset,
1135         .detect = nouveau_connector_detect_lvds,
1136         .force = nouveau_connector_force,
1137         .fill_modes = drm_helper_probe_single_connector_modes,
1138         .set_property = nouveau_connector_set_property,
1139         .destroy = nouveau_connector_destroy,
1140         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1141         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1142         .atomic_set_property = nouveau_conn_atomic_set_property,
1143         .atomic_get_property = nouveau_conn_atomic_get_property,
1144         .late_register = nouveau_connector_late_register,
1145         .early_unregister = nouveau_connector_early_unregister,
1146 };
1147
1148 void
1149 nouveau_connector_hpd(struct drm_connector *connector)
1150 {
1151         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1152         u32 mask = drm_connector_mask(connector);
1153
1154         mutex_lock(&drm->hpd_lock);
1155         if (!(drm->hpd_pending & mask)) {
1156                 drm->hpd_pending |= mask;
1157                 schedule_work(&drm->hpd_work);
1158         }
1159         mutex_unlock(&drm->hpd_lock);
1160 }
1161
1162 static int
1163 nouveau_connector_hotplug(struct nvif_notify *notify)
1164 {
1165         struct nouveau_connector *nv_connector =
1166                 container_of(notify, typeof(*nv_connector), hpd);
1167         struct drm_connector *connector = &nv_connector->base;
1168         struct drm_device *dev = connector->dev;
1169         struct nouveau_drm *drm = nouveau_drm(dev);
1170         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1171         bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1172
1173         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1174                 nouveau_dp_irq(drm, nv_connector);
1175                 return NVIF_NOTIFY_KEEP;
1176         }
1177
1178         NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", connector->name);
1179         nouveau_connector_hpd(connector);
1180
1181         return NVIF_NOTIFY_KEEP;
1182 }
1183
1184 static ssize_t
1185 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1186 {
1187         struct nouveau_connector *nv_connector =
1188                 container_of(obj, typeof(*nv_connector), aux);
1189         struct nouveau_encoder *nv_encoder;
1190         struct nvkm_i2c_aux *aux;
1191         u8 size = msg->size;
1192         int ret;
1193
1194         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1195         if (!nv_encoder || !(aux = nv_encoder->aux))
1196                 return -ENODEV;
1197         if (WARN_ON(msg->size > 16))
1198                 return -E2BIG;
1199
1200         ret = nvkm_i2c_aux_acquire(aux);
1201         if (ret)
1202                 return ret;
1203
1204         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1205                                 msg->buffer, &size);
1206         nvkm_i2c_aux_release(aux);
1207         if (ret >= 0) {
1208                 msg->reply = ret;
1209                 return size;
1210         }
1211
1212         return ret;
1213 }
1214
1215 static int
1216 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1217 {
1218         switch (dcb) {
1219         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1220         case DCB_CONNECTOR_TV_0     :
1221         case DCB_CONNECTOR_TV_1     :
1222         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1223         case DCB_CONNECTOR_DMS59_0  :
1224         case DCB_CONNECTOR_DMS59_1  :
1225         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1226         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1227         case DCB_CONNECTOR_LVDS     :
1228         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1229         case DCB_CONNECTOR_DMS59_DP0:
1230         case DCB_CONNECTOR_DMS59_DP1:
1231         case DCB_CONNECTOR_DP       :
1232         case DCB_CONNECTOR_mDP      :
1233         case DCB_CONNECTOR_USB_C    : return DRM_MODE_CONNECTOR_DisplayPort;
1234         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1235         case DCB_CONNECTOR_HDMI_0   :
1236         case DCB_CONNECTOR_HDMI_1   :
1237         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1238         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1239         default:
1240                 break;
1241         }
1242
1243         return DRM_MODE_CONNECTOR_Unknown;
1244 }
1245
1246 struct drm_connector *
1247 nouveau_connector_create(struct drm_device *dev,
1248                          const struct dcb_output *dcbe)
1249 {
1250         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1251         struct nouveau_drm *drm = nouveau_drm(dev);
1252         struct nouveau_display *disp = nouveau_display(dev);
1253         struct nouveau_connector *nv_connector = NULL;
1254         struct drm_connector *connector;
1255         struct drm_connector_list_iter conn_iter;
1256         char aux_name[48] = {0};
1257         int index = dcbe->connector;
1258         int type, ret = 0;
1259         bool dummy;
1260
1261         drm_connector_list_iter_begin(dev, &conn_iter);
1262         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1263                 nv_connector = nouveau_connector(connector);
1264                 if (nv_connector->index == index) {
1265                         drm_connector_list_iter_end(&conn_iter);
1266                         return connector;
1267                 }
1268         }
1269         drm_connector_list_iter_end(&conn_iter);
1270
1271         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1272         if (!nv_connector)
1273                 return ERR_PTR(-ENOMEM);
1274
1275         connector = &nv_connector->base;
1276         nv_connector->index = index;
1277
1278         /* attempt to parse vbios connector type and hotplug gpio */
1279         nv_connector->dcb = olddcb_conn(dev, index);
1280         if (nv_connector->dcb) {
1281                 u32 entry = ROM16(nv_connector->dcb[0]);
1282                 if (olddcb_conntab(dev)[3] >= 4)
1283                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1284
1285                 nv_connector->type = nv_connector->dcb[0];
1286                 if (drm_conntype_from_dcb(nv_connector->type) ==
1287                                           DRM_MODE_CONNECTOR_Unknown) {
1288                         NV_WARN(drm, "unknown connector type %02x\n",
1289                                 nv_connector->type);
1290                         nv_connector->type = DCB_CONNECTOR_NONE;
1291                 }
1292
1293                 /* Gigabyte NX85T */
1294                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1295                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1296                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1297                 }
1298
1299                 /* Gigabyte GV-NX86T512H */
1300                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1301                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1302                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1303                 }
1304         } else {
1305                 nv_connector->type = DCB_CONNECTOR_NONE;
1306         }
1307
1308         /* no vbios data, or an unknown dcb connector type - attempt to
1309          * figure out something suitable ourselves
1310          */
1311         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1312                 struct nouveau_drm *drm = nouveau_drm(dev);
1313                 struct dcb_table *dcbt = &drm->vbios.dcb;
1314                 u32 encoders = 0;
1315                 int i;
1316
1317                 for (i = 0; i < dcbt->entries; i++) {
1318                         if (dcbt->entry[i].connector == nv_connector->index)
1319                                 encoders |= (1 << dcbt->entry[i].type);
1320                 }
1321
1322                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1323                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1324                                 nv_connector->type = DCB_CONNECTOR_DP;
1325                         else
1326                                 nv_connector->type = DCB_CONNECTOR_eDP;
1327                 } else
1328                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1329                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1330                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1331                         else
1332                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1333                 } else
1334                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1335                         nv_connector->type = DCB_CONNECTOR_VGA;
1336                 } else
1337                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1338                         nv_connector->type = DCB_CONNECTOR_LVDS;
1339                 } else
1340                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1341                         nv_connector->type = DCB_CONNECTOR_TV_0;
1342                 }
1343         }
1344
1345         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1346         case DRM_MODE_CONNECTOR_LVDS:
1347                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1348                 if (ret) {
1349                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1350                         kfree(nv_connector);
1351                         return ERR_PTR(ret);
1352                 }
1353
1354                 funcs = &nouveau_connector_funcs_lvds;
1355                 break;
1356         case DRM_MODE_CONNECTOR_DisplayPort:
1357         case DRM_MODE_CONNECTOR_eDP:
1358                 nv_connector->aux.dev = connector->kdev;
1359                 nv_connector->aux.drm_dev = dev;
1360                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1361                 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1362                          dcbe->hasht, dcbe->hashm);
1363                 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1364                 drm_dp_aux_init(&nv_connector->aux);
1365                 if (ret) {
1366                         NV_ERROR(drm, "Failed to init AUX adapter for sor-%04x-%04x: %d\n",
1367                                  dcbe->hasht, dcbe->hashm, ret);
1368                         kfree(nv_connector);
1369                         return ERR_PTR(ret);
1370                 }
1371                 fallthrough;
1372         default:
1373                 funcs = &nouveau_connector_funcs;
1374                 break;
1375         }
1376
1377         /* HDMI 3D support */
1378         if ((disp->disp.object.oclass >= G82_DISP)
1379             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1380                 || (type == DRM_MODE_CONNECTOR_eDP)
1381                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1382                 connector->stereo_allowed = true;
1383
1384         /* defaults, will get overridden in detect() */
1385         connector->interlace_allowed = false;
1386         connector->doublescan_allowed = false;
1387
1388         drm_connector_init(dev, connector, funcs, type);
1389         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1390
1391         connector->funcs->reset(connector);
1392         nouveau_conn_attach_properties(connector);
1393
1394         /* Default scaling mode */
1395         switch (nv_connector->type) {
1396         case DCB_CONNECTOR_LVDS:
1397         case DCB_CONNECTOR_LVDS_SPWG:
1398         case DCB_CONNECTOR_eDP:
1399                 /* see note in nouveau_connector_set_property() */
1400                 if (disp->disp.object.oclass < NV50_DISP) {
1401                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1402                         break;
1403                 }
1404                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1405                 break;
1406         default:
1407                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1408                 break;
1409         }
1410
1411         /* dithering properties */
1412         switch (nv_connector->type) {
1413         case DCB_CONNECTOR_TV_0:
1414         case DCB_CONNECTOR_TV_1:
1415         case DCB_CONNECTOR_TV_3:
1416         case DCB_CONNECTOR_VGA:
1417                 break;
1418         default:
1419                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1420                 break;
1421         }
1422
1423         switch (type) {
1424         case DRM_MODE_CONNECTOR_DisplayPort:
1425         case DRM_MODE_CONNECTOR_eDP:
1426                 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1427                 break;
1428         }
1429
1430         ret = nvif_notify_ctor(&disp->disp.object, "kmsHotplug",
1431                                nouveau_connector_hotplug,
1432                                true, NV04_DISP_NTFY_CONN,
1433                                &(struct nvif_notify_conn_req_v0) {
1434                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1435                                 .conn = index,
1436                                },
1437                                sizeof(struct nvif_notify_conn_req_v0),
1438                                sizeof(struct nvif_notify_conn_rep_v0),
1439                                &nv_connector->hpd);
1440         if (ret)
1441                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1442         else
1443                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1444
1445         drm_connector_register(connector);
1446         return connector;
1447 }