drivers/gpu/drm/nouveau/nouveau_connector.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <acpi/button.h>
  28
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include <drm/drmP.h>
  33 #include <drm/drm_atomic_helper.h>
  34 #include <drm/drm_edid.h>
  35 #include <drm/drm_crtc_helper.h>
  36 #include <drm/drm_atomic.h>
  37
  38 #include "nouveau_reg.h"
  39 #include "nouveau_drv.h"
  40 #include "dispnv04/hw.h"
  41 #include "nouveau_acpi.h"
  42
  43 #include "nouveau_display.h"
  44 #include "nouveau_connector.h"
  45 #include "nouveau_encoder.h"
  46 #include "nouveau_crtc.h"
  47
  48 #include <nvif/class.h>
  49 #include <nvif/cl0046.h>
  50 #include <nvif/event.h>
  51
  52 struct drm_display_mode *
  53 nouveau_conn_native_mode(struct drm_connector *connector)
  54 {
  55         const struct drm_connector_helper_funcs *helper = connector->helper_private;
  56         struct nouveau_drm *drm = nouveau_drm(connector->dev);
  57         struct drm_device *dev = connector->dev;
  58         struct drm_display_mode *mode, *largest = NULL;
  59         int high_w = 0, high_h = 0, high_v = 0;
  60
  61         list_for_each_entry(mode, &connector->probed_modes, head) {
  62                 mode->vrefresh = drm_mode_vrefresh(mode);
  63                 if (helper->mode_valid(connector, mode) != MODE_OK ||
  64                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
  65                         continue;
  66
  67                 /* Use preferred mode if there is one.. */
  68                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
  69                         NV_DEBUG(drm, "native mode from preferred\n");
  70                         return drm_mode_duplicate(dev, mode);
  71                 }
  72
  73                 /* Otherwise, take the resolution with the largest width, then
  74                  * height, then vertical refresh
  75                  */
  76                 if (mode->hdisplay < high_w)
  77                         continue;
  78
  79                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
  80                         continue;
  81
  82                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
  83                     mode->vrefresh < high_v)
  84                         continue;
  85
  86                 high_w = mode->hdisplay;
  87                 high_h = mode->vdisplay;
  88                 high_v = mode->vrefresh;
  89                 largest = mode;
  90         }
  91
  92         NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
  93                       high_w, high_h, high_v);
  94         return largest ? drm_mode_duplicate(dev, largest) : NULL;
  95 }
  96
  97 int
  98 nouveau_conn_atomic_get_property(struct drm_connector *connector,
  99                                  const struct drm_connector_state *state,
 100                                  struct drm_property *property, u64 *val)
 101 {
 102         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 103         struct nouveau_display *disp = nouveau_display(connector->dev);
 104         struct drm_device *dev = connector->dev;
 105
 106         if (property == dev->mode_config.scaling_mode_property)
 107                 *val = asyc->scaler.mode;
 108         else if (property == disp->underscan_property)
 109                 *val = asyc->scaler.underscan.mode;
 110         else if (property == disp->underscan_hborder_property)
 111                 *val = asyc->scaler.underscan.hborder;
 112         else if (property == disp->underscan_vborder_property)
 113                 *val = asyc->scaler.underscan.vborder;
 114         else if (property == disp->dithering_mode)
 115                 *val = asyc->dither.mode;
 116         else if (property == disp->dithering_depth)
 117                 *val = asyc->dither.depth;
 118         else if (property == disp->vibrant_hue_property)
 119                 *val = asyc->procamp.vibrant_hue;
 120         else if (property == disp->color_vibrance_property)
 121                 *val = asyc->procamp.color_vibrance;
 122         else
 123                 return -EINVAL;
 124
 125         return 0;
 126 }
 127
 128 int
 129 nouveau_conn_atomic_set_property(struct drm_connector *connector,
 130                                  struct drm_connector_state *state,
 131                                  struct drm_property *property, u64 val)
 132 {
 133         struct drm_device *dev = connector->dev;
 134         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 135         struct nouveau_display *disp = nouveau_display(dev);
 136
 137         if (property == dev->mode_config.scaling_mode_property) {
 138                 switch (val) {
 139                 case DRM_MODE_SCALE_NONE:
 140                         /* We allow 'None' for EDID modes, even on a fixed
 141                          * panel (some exist with support for lower refresh
 142                          * rates, which people might want to use for power-
 143                          * saving purposes).
 144                          *
 145                          * Non-EDID modes will force the use of GPU scaling
 146                          * to the native mode regardless of this setting.
 147                          */
 148                         switch (connector->connector_type) {
 149                         case DRM_MODE_CONNECTOR_LVDS:
 150                         case DRM_MODE_CONNECTOR_eDP:
 151                                 /* ... except prior to G80, where the code
 152                                  * doesn't support such things.
 153                                  */
 154                                 if (disp->disp.object.oclass < NV50_DISP)
 155                                         return -EINVAL;
 156                                 break;
 157                         default:
 158                                 break;
 159                         }
 160                 case DRM_MODE_SCALE_FULLSCREEN:
 161                 case DRM_MODE_SCALE_CENTER:
 162                 case DRM_MODE_SCALE_ASPECT:
 163                         break;
 164                 default:
 165                         return -EINVAL;
 166                 }
 167
 168                 if (asyc->scaler.mode != val) {
 169                         asyc->scaler.mode = val;
 170                         asyc->set.scaler = true;
 171                 }
 172         } else
 173         if (property == disp->underscan_property) {
 174                 if (asyc->scaler.underscan.mode != val) {
 175                         asyc->scaler.underscan.mode = val;
 176                         asyc->set.scaler = true;
 177                 }
 178         } else
 179         if (property == disp->underscan_hborder_property) {
 180                 if (asyc->scaler.underscan.hborder != val) {
 181                         asyc->scaler.underscan.hborder = val;
 182                         asyc->set.scaler = true;
 183                 }
 184         } else
 185         if (property == disp->underscan_vborder_property) {
 186                 if (asyc->scaler.underscan.vborder != val) {
 187                         asyc->scaler.underscan.vborder = val;
 188                         asyc->set.scaler = true;
 189                 }
 190         } else
 191         if (property == disp->dithering_mode) {
 192                 if (asyc->dither.mode != val) {
 193                         asyc->dither.mode = val;
 194                         asyc->set.dither = true;
 195                 }
 196         } else
 197         if (property == disp->dithering_depth) {
 198                 if (asyc->dither.mode != val) {
 199                         asyc->dither.depth = val;
 200                         asyc->set.dither = true;
 201                 }
 202         } else
 203         if (property == disp->vibrant_hue_property) {
 204                 if (asyc->procamp.vibrant_hue != val) {
 205                         asyc->procamp.vibrant_hue = val;
 206                         asyc->set.procamp = true;
 207                 }
 208         } else
 209         if (property == disp->color_vibrance_property) {
 210                 if (asyc->procamp.color_vibrance != val) {
 211                         asyc->procamp.color_vibrance = val;
 212                         asyc->set.procamp = true;
 213                 }
 214         } else {
 215                 return -EINVAL;
 216         }
 217
 218         return 0;
 219 }
 220
 221 void
 222 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
 223                                   struct drm_connector_state *state)
 224 {
 225         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 226         __drm_atomic_helper_connector_destroy_state(&asyc->state);
 227         kfree(asyc);
 228 }
 229
 230 struct drm_connector_state *
 231 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
 232 {
 233         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 234         struct nouveau_conn_atom *asyc;
 235         if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
 236                 return NULL;
 237         __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
 238         asyc->dither = armc->dither;
 239         asyc->scaler = armc->scaler;
 240         asyc->procamp = armc->procamp;
 241         asyc->set.mask = 0;
 242         return &asyc->state;
 243 }
 244
 245 void
 246 nouveau_conn_reset(struct drm_connector *connector)
 247 {
 248         struct nouveau_conn_atom *asyc;
 249
 250         if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 251                 return;
 252
 253         if (connector->state)
 254                 __drm_atomic_helper_connector_destroy_state(connector->state);
 255         __drm_atomic_helper_connector_reset(connector, &asyc->state);
 256         asyc->dither.mode = DITHERING_MODE_AUTO;
 257         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 258         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 259         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 260         asyc->procamp.color_vibrance = 150;
 261         asyc->procamp.vibrant_hue = 90;
 262
 263         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 264                 switch (connector->connector_type) {
 265                 case DRM_MODE_CONNECTOR_LVDS:
 266                         /* See note in nouveau_conn_atomic_set_property(). */
 267                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 268                         break;
 269                 default:
 270                         break;
 271                 }
 272         }
 273 }
 274
 275 void
 276 nouveau_conn_attach_properties(struct drm_connector *connector)
 277 {
 278         struct drm_device *dev = connector->dev;
 279         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 280         struct nouveau_display *disp = nouveau_display(dev);
 281
 282         /* Init DVI-I specific properties. */
 283         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 284                 drm_object_attach_property(&connector->base, dev->mode_config.
 285                                            dvi_i_subconnector_property, 0);
 286
 287         /* Add overscan compensation options to digital outputs. */
 288         if (disp->underscan_property &&
 289             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 290              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 291              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 292              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 293                 drm_object_attach_property(&connector->base,
 294                                            disp->underscan_property,
 295                                            UNDERSCAN_OFF);
 296                 drm_object_attach_property(&connector->base,
 297                                            disp->underscan_hborder_property, 0);
 298                 drm_object_attach_property(&connector->base,
 299                                            disp->underscan_vborder_property, 0);
 300         }
 301
 302         /* Add hue and saturation options. */
 303         if (disp->vibrant_hue_property)
 304                 drm_object_attach_property(&connector->base,
 305                                            disp->vibrant_hue_property,
 306                                            armc->procamp.vibrant_hue);
 307         if (disp->color_vibrance_property)
 308                 drm_object_attach_property(&connector->base,
 309                                            disp->color_vibrance_property,
 310                                            armc->procamp.color_vibrance);
 311
 312         /* Scaling mode property. */
 313         switch (connector->connector_type) {
 314         case DRM_MODE_CONNECTOR_TV:
 315                 break;
 316         case DRM_MODE_CONNECTOR_VGA:
 317                 if (disp->disp.object.oclass < NV50_DISP)
 318                         break; /* Can only scale on DFPs. */
 319                 /* Fall-through. */
 320         default:
 321                 drm_object_attach_property(&connector->base, dev->mode_config.
 322                                            scaling_mode_property,
 323                                            armc->scaler.mode);
 324                 break;
 325         }
 326
 327         /* Dithering properties. */
 328         switch (connector->connector_type) {
 329         case DRM_MODE_CONNECTOR_TV:
 330         case DRM_MODE_CONNECTOR_VGA:
 331                 break;
 332         default:
 333                 if (disp->dithering_mode) {
 334                         drm_object_attach_property(&connector->base,
 335                                                    disp->dithering_mode,
 336                                                    armc->dither.mode);
 337                 }
 338                 if (disp->dithering_depth) {
 339                         drm_object_attach_property(&connector->base,
 340                                                    disp->dithering_depth,
 341                                                    armc->dither.depth);
 342                 }
 343                 break;
 344         }
 345 }
 346
 347 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 348 int nouveau_tv_disable = 0;
 349 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 350
 351 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 352 int nouveau_ignorelid = 0;
 353 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 354
 355 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 356 int nouveau_duallink = 1;
 357 module_param_named(duallink, nouveau_duallink, int, 0400);
 358
 359 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 360 int nouveau_hdmimhz = 0;
 361 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 362
 363 struct nouveau_encoder *
 364 find_encoder(struct drm_connector *connector, int type)
 365 {
 366         struct nouveau_encoder *nv_encoder;
 367         struct drm_encoder *enc;
 368         int i;
 369
 370         drm_connector_for_each_possible_encoder(connector, enc, i) {
 371                 nv_encoder = nouveau_encoder(enc);
 372
 373                 if (type == DCB_OUTPUT_ANY ||
 374                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 375                         return nv_encoder;
 376         }
 377
 378         return NULL;
 379 }
 380
 381 struct nouveau_connector *
 382 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 383 {
 384         struct drm_device *dev = to_drm_encoder(encoder)->dev;
 385         struct drm_connector *drm_connector;
 386
 387         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 388                 if (drm_connector->encoder == to_drm_encoder(encoder))
 389                         return nouveau_connector(drm_connector);
 390         }
 391
 392         return NULL;
 393 }
 394
 395 static void
 396 nouveau_connector_destroy(struct drm_connector *connector)
 397 {
 398         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 399         nvif_notify_fini(&nv_connector->hpd);
 400         kfree(nv_connector->edid);
 401         drm_connector_unregister(connector);
 402         drm_connector_cleanup(connector);
 403         if (nv_connector->aux.transfer) {
 404                 drm_dp_cec_unregister_connector(&nv_connector->aux);
 405                 drm_dp_aux_unregister(&nv_connector->aux);
 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 nouveau_encoder *nv_encoder = NULL, *found = NULL;
 415         struct drm_encoder *encoder;
 416         int i, ret;
 417         bool switcheroo_ddc = false;
 418
 419         drm_connector_for_each_possible_encoder(connector, encoder, i) {
 420                 nv_encoder = nouveau_encoder(encoder);
 421
 422                 switch (nv_encoder->dcb->type) {
 423                 case DCB_OUTPUT_DP:
 424                         ret = nouveau_dp_detect(nv_encoder);
 425                         if (ret == NOUVEAU_DP_MST)
 426                                 return NULL;
 427                         else if (ret == NOUVEAU_DP_SST)
 428                                 found = nv_encoder;
 429
 430                         break;
 431                 case DCB_OUTPUT_LVDS:
 432                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 433                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 434                 /* fall-through */
 435                 default:
 436                         if (!nv_encoder->i2c)
 437                                 break;
 438
 439                         if (switcheroo_ddc)
 440                                 vga_switcheroo_lock_ddc(dev->pdev);
 441                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 442                                 found = nv_encoder;
 443                         if (switcheroo_ddc)
 444                                 vga_switcheroo_unlock_ddc(dev->pdev);
 445
 446                         break;
 447                 }
 448                 if (found)
 449                         break;
 450         }
 451
 452         return found;
 453 }
 454
 455 static struct nouveau_encoder *
 456 nouveau_connector_of_detect(struct drm_connector *connector)
 457 {
 458 #ifdef __powerpc__
 459         struct drm_device *dev = connector->dev;
 460         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 461         struct nouveau_encoder *nv_encoder;
 462         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 463
 464         if (!dn ||
 465             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 466               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 467                 return NULL;
 468
 469         for_each_child_of_node(dn, cn) {
 470                 const char *name = of_get_property(cn, "name", NULL);
 471                 const void *edid = of_get_property(cn, "EDID", NULL);
 472                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 473
 474                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 475                         nv_connector->edid =
 476                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 477                         of_node_put(cn);
 478                         return nv_encoder;
 479                 }
 480         }
 481 #endif
 482         return NULL;
 483 }
 484
 485 static void
 486 nouveau_connector_set_encoder(struct drm_connector *connector,
 487                               struct nouveau_encoder *nv_encoder)
 488 {
 489         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 490         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 491         struct drm_device *dev = connector->dev;
 492
 493         if (nv_connector->detected_encoder == nv_encoder)
 494                 return;
 495         nv_connector->detected_encoder = nv_encoder;
 496
 497         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 498                 connector->interlace_allowed = true;
 499                 connector->doublescan_allowed = true;
 500         } else
 501         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 502             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 503                 connector->doublescan_allowed = false;
 504                 connector->interlace_allowed = false;
 505         } else {
 506                 connector->doublescan_allowed = true;
 507                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 508                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 509                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
 510                      (dev->pdev->device & 0x0ff0) != 0x0150))
 511                         /* HW is broken */
 512                         connector->interlace_allowed = false;
 513                 else
 514                         connector->interlace_allowed = true;
 515         }
 516
 517         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 518                 drm_object_property_set_value(&connector->base,
 519                         dev->mode_config.dvi_i_subconnector_property,
 520                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 521                         DRM_MODE_SUBCONNECTOR_DVID :
 522                         DRM_MODE_SUBCONNECTOR_DVIA);
 523         }
 524 }
 525
 526 static enum drm_connector_status
 527 nouveau_connector_detect(struct drm_connector *connector, bool force)
 528 {
 529         struct drm_device *dev = connector->dev;
 530         struct nouveau_drm *drm = nouveau_drm(dev);
 531         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 532         struct nouveau_encoder *nv_encoder = NULL;
 533         struct nouveau_encoder *nv_partner;
 534         struct i2c_adapter *i2c;
 535         int type;
 536         int ret;
 537         enum drm_connector_status conn_status = connector_status_disconnected;
 538
 539         /* Cleanup the previous EDID block. */
 540         if (nv_connector->edid) {
 541                 drm_connector_update_edid_property(connector, NULL);
 542                 kfree(nv_connector->edid);
 543                 nv_connector->edid = NULL;
 544         }
 545
 546         /* Outputs are only polled while runtime active, so resuming the
 547          * device here is unnecessary (and would deadlock upon runtime suspend
 548          * because it waits for polling to finish). We do however, want to
 549          * prevent the autosuspend timer from elapsing during this operation
 550          * if possible.
 551          */
 552         if (drm_kms_helper_is_poll_worker()) {
 553                 pm_runtime_get_noresume(dev->dev);
 554         } else {
 555                 ret = pm_runtime_get_sync(dev->dev);
 556                 if (ret < 0 && ret != -EACCES)
 557                         return conn_status;
 558         }
 559
 560         nv_encoder = nouveau_connector_ddc_detect(connector);
 561         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 562                 if ((vga_switcheroo_handler_flags() &
 563                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 564                     nv_connector->type == DCB_CONNECTOR_LVDS)
 565                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 566                                                                      i2c);
 567                 else
 568                         nv_connector->edid = drm_get_edid(connector, i2c);
 569
 570                 drm_connector_update_edid_property(connector,
 571                                                         nv_connector->edid);
 572                 if (!nv_connector->edid) {
 573                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 574                                  connector->name);
 575                         goto detect_analog;
 576                 }
 577
 578                 /* Override encoder type for DVI-I based on whether EDID
 579                  * says the display is digital or analog, both use the
 580                  * same i2c channel so the value returned from ddc_detect
 581                  * isn't necessarily correct.
 582                  */
 583                 nv_partner = NULL;
 584                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 585                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 586                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 587                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 588
 589                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 590                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 591                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 592                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 593                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 594                                 type = DCB_OUTPUT_TMDS;
 595                         else
 596                                 type = DCB_OUTPUT_ANALOG;
 597
 598                         nv_encoder = find_encoder(connector, type);
 599                 }
 600
 601                 nouveau_connector_set_encoder(connector, nv_encoder);
 602                 conn_status = connector_status_connected;
 603                 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
 604                 goto out;
 605         }
 606
 607         nv_encoder = nouveau_connector_of_detect(connector);
 608         if (nv_encoder) {
 609                 nouveau_connector_set_encoder(connector, nv_encoder);
 610                 conn_status = connector_status_connected;
 611                 goto out;
 612         }
 613
 614 detect_analog:
 615         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 616         if (!nv_encoder && !nouveau_tv_disable)
 617                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 618         if (nv_encoder && force) {
 619                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 620                 const struct drm_encoder_helper_funcs *helper =
 621                                                 encoder->helper_private;
 622
 623                 if (helper->detect(encoder, connector) ==
 624                                                 connector_status_connected) {
 625                         nouveau_connector_set_encoder(connector, nv_encoder);
 626                         conn_status = connector_status_connected;
 627                         goto out;
 628                 }
 629
 630         }
 631
 632  out:
 633
 634         pm_runtime_mark_last_busy(dev->dev);
 635         pm_runtime_put_autosuspend(dev->dev);
 636
 637         return conn_status;
 638 }
 639
 640 static enum drm_connector_status
 641 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 642 {
 643         struct drm_device *dev = connector->dev;
 644         struct nouveau_drm *drm = nouveau_drm(dev);
 645         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 646         struct nouveau_encoder *nv_encoder = NULL;
 647         enum drm_connector_status status = connector_status_disconnected;
 648
 649         /* Cleanup the previous EDID block. */
 650         if (nv_connector->edid) {
 651                 drm_connector_update_edid_property(connector, NULL);
 652                 kfree(nv_connector->edid);
 653                 nv_connector->edid = NULL;
 654         }
 655
 656         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 657         if (!nv_encoder)
 658                 return connector_status_disconnected;
 659
 660         /* Try retrieving EDID via DDC */
 661         if (!drm->vbios.fp_no_ddc) {
 662                 status = nouveau_connector_detect(connector, force);
 663                 if (status == connector_status_connected)
 664                         goto out;
 665         }
 666
 667         /* On some laptops (Sony, i'm looking at you) there appears to
 668          * be no direct way of accessing the panel's EDID.  The only
 669          * option available to us appears to be to ask ACPI for help..
 670          *
 671          * It's important this check's before trying straps, one of the
 672          * said manufacturer's laptops are configured in such a way
 673          * the nouveau decides an entry in the VBIOS FP mode table is
 674          * valid - it's not (rh#613284)
 675          */
 676         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 677                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 678                         status = connector_status_connected;
 679                         goto out;
 680                 }
 681         }
 682
 683         /* If no EDID found above, and the VBIOS indicates a hardcoded
 684          * modeline is avalilable for the panel, set it as the panel's
 685          * native mode and exit.
 686          */
 687         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 688             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 689                 status = connector_status_connected;
 690                 goto out;
 691         }
 692
 693         /* Still nothing, some VBIOS images have a hardcoded EDID block
 694          * stored for the panel stored in them.
 695          */
 696         if (!drm->vbios.fp_no_ddc) {
 697                 struct edid *edid =
 698                         (struct edid *)nouveau_bios_embedded_edid(dev);
 699                 if (edid) {
 700                         nv_connector->edid =
 701                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 702                         if (nv_connector->edid)
 703                                 status = connector_status_connected;
 704                 }
 705         }
 706
 707 out:
 708 #if defined(CONFIG_ACPI_BUTTON) || \
 709         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 710         if (status == connector_status_connected &&
 711             !nouveau_ignorelid && !acpi_lid_open())
 712                 status = connector_status_unknown;
 713 #endif
 714
 715         drm_connector_update_edid_property(connector, nv_connector->edid);
 716         nouveau_connector_set_encoder(connector, nv_encoder);
 717         return status;
 718 }
 719
 720 static void
 721 nouveau_connector_force(struct drm_connector *connector)
 722 {
 723         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 724         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 725         struct nouveau_encoder *nv_encoder;
 726         int type;
 727
 728         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 729                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 730                         type = DCB_OUTPUT_TMDS;
 731                 else
 732                         type = DCB_OUTPUT_ANALOG;
 733         } else
 734                 type = DCB_OUTPUT_ANY;
 735
 736         nv_encoder = find_encoder(connector, type);
 737         if (!nv_encoder) {
 738                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 739                          connector->name);
 740                 connector->status = connector_status_disconnected;
 741                 return;
 742         }
 743
 744         nouveau_connector_set_encoder(connector, nv_encoder);
 745 }
 746
 747 static int
 748 nouveau_connector_set_property(struct drm_connector *connector,
 749                                struct drm_property *property, uint64_t value)
 750 {
 751         struct nouveau_conn_atom *asyc = nouveau_conn_atom(connector->state);
 752         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 753         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 754         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 755         int ret;
 756
 757         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 758                                                     &asyc->state,
 759                                                     property, value);
 760         if (ret) {
 761                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 762                         return get_slave_funcs(encoder)->set_property(
 763                                 encoder, connector, property, value);
 764                 return ret;
 765         }
 766
 767         nv_connector->scaling_mode = asyc->scaler.mode;
 768         nv_connector->dithering_mode = asyc->dither.mode;
 769
 770         if (connector->encoder && connector->encoder->crtc) {
 771                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 772                                               &connector->encoder->crtc->mode,
 773                                                connector->encoder->crtc->x,
 774                                                connector->encoder->crtc->y,
 775                                                NULL);
 776                 if (!ret)
 777                         return -EINVAL;
 778         }
 779
 780         return 0;
 781 }
 782
 783 struct moderec {
 784         int hdisplay;
 785         int vdisplay;
 786 };
 787
 788 static struct moderec scaler_modes[] = {
 789         { 1920, 1200 },
 790         { 1920, 1080 },
 791         { 1680, 1050 },
 792         { 1600, 1200 },
 793         { 1400, 1050 },
 794         { 1280, 1024 },
 795         { 1280, 960 },
 796         { 1152, 864 },
 797         { 1024, 768 },
 798         { 800, 600 },
 799         { 720, 400 },
 800         { 640, 480 },
 801         { 640, 400 },
 802         { 640, 350 },
 803         {}
 804 };
 805
 806 static int
 807 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 808 {
 809         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 810         struct drm_display_mode *native = nv_connector->native_mode, *m;
 811         struct drm_device *dev = connector->dev;
 812         struct moderec *mode = &scaler_modes[0];
 813         int modes = 0;
 814
 815         if (!native)
 816                 return 0;
 817
 818         while (mode->hdisplay) {
 819                 if (mode->hdisplay <= native->hdisplay &&
 820                     mode->vdisplay <= native->vdisplay &&
 821                     (mode->hdisplay != native->hdisplay ||
 822                      mode->vdisplay != native->vdisplay)) {
 823                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 824                                          drm_mode_vrefresh(native), false,
 825                                          false, false);
 826                         if (!m)
 827                                 continue;
 828
 829                         drm_mode_probed_add(connector, m);
 830                         modes++;
 831                 }
 832
 833                 mode++;
 834         }
 835
 836         return modes;
 837 }
 838
 839 static void
 840 nouveau_connector_detect_depth(struct drm_connector *connector)
 841 {
 842         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 843         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 844         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 845         struct nvbios *bios = &drm->vbios;
 846         struct drm_display_mode *mode = nv_connector->native_mode;
 847         bool duallink;
 848
 849         /* if the edid is feeling nice enough to provide this info, use it */
 850         if (nv_connector->edid && connector->display_info.bpc)
 851                 return;
 852
 853         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 854         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 855                 connector->display_info.bpc = 6;
 856                 return;
 857         }
 858
 859         /* we're out of options unless we're LVDS, default to 8bpc */
 860         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 861                 connector->display_info.bpc = 8;
 862                 return;
 863         }
 864
 865         connector->display_info.bpc = 6;
 866
 867         /* LVDS: panel straps */
 868         if (bios->fp_no_ddc) {
 869                 if (bios->fp.if_is_24bit)
 870                         connector->display_info.bpc = 8;
 871                 return;
 872         }
 873
 874         /* LVDS: DDC panel, need to first determine the number of links to
 875          * know which if_is_24bit flag to check...
 876          */
 877         if (nv_connector->edid &&
 878             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 879                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 880         else
 881                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 882
 883         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 884             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 885                 connector->display_info.bpc = 8;
 886 }
 887
 888 static int
 889 nouveau_connector_late_register(struct drm_connector *connector)
 890 {
 891         int ret;
 892
 893         ret = nouveau_backlight_init(connector);
 894
 895         return ret;
 896 }
 897
 898 static void
 899 nouveau_connector_early_unregister(struct drm_connector *connector)
 900 {
 901         nouveau_backlight_exit(connector);
 902 }
 903
 904 static int
 905 nouveau_connector_get_modes(struct drm_connector *connector)
 906 {
 907         struct drm_device *dev = connector->dev;
 908         struct nouveau_drm *drm = nouveau_drm(dev);
 909         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 910         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 911         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 912         int ret = 0;
 913
 914         /* destroy the native mode, the attached monitor could have changed.
 915          */
 916         if (nv_connector->native_mode) {
 917                 drm_mode_destroy(dev, nv_connector->native_mode);
 918                 nv_connector->native_mode = NULL;
 919         }
 920
 921         if (nv_connector->edid)
 922                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 923         else
 924         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 925             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 926              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 927                 struct drm_display_mode mode;
 928
 929                 nouveau_bios_fp_mode(dev, &mode);
 930                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 931         }
 932
 933         /* Determine display colour depth for everything except LVDS now,
 934          * DP requires this before mode_valid() is called.
 935          */
 936         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 937                 nouveau_connector_detect_depth(connector);
 938
 939         /* Find the native mode if this is a digital panel, if we didn't
 940          * find any modes through DDC previously add the native mode to
 941          * the list of modes.
 942          */
 943         if (!nv_connector->native_mode)
 944                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 945         if (ret == 0 && nv_connector->native_mode) {
 946                 struct drm_display_mode *mode;
 947
 948                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 949                 drm_mode_probed_add(connector, mode);
 950                 ret = 1;
 951         }
 952
 953         /* Determine LVDS colour depth, must happen after determining
 954          * "native" mode as some VBIOS tables require us to use the
 955          * pixel clock as part of the lookup...
 956          */
 957         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 958                 nouveau_connector_detect_depth(connector);
 959
 960         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 961                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 962
 963         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 964             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 965             nv_connector->type == DCB_CONNECTOR_eDP)
 966                 ret += nouveau_connector_scaler_modes_add(connector);
 967
 968         return ret;
 969 }
 970
 971 static unsigned
 972 get_tmds_link_bandwidth(struct drm_connector *connector, bool hdmi)
 973 {
 974         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 975         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 976         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 977
 978         if (hdmi) {
 979                 if (nouveau_hdmimhz > 0)
 980                         return nouveau_hdmimhz * 1000;
 981                 /* Note: these limits are conservative, some Fermi's
 982                  * can do 297 MHz. Unclear how this can be determined.
 983                  */
 984                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
 985                         return 297000;
 986                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
 987                         return 225000;
 988         }
 989         if (dcb->location != DCB_LOC_ON_CHIP ||
 990             drm->client.device.info.chipset >= 0x46)
 991                 return 165000;
 992         else if (drm->client.device.info.chipset >= 0x40)
 993                 return 155000;
 994         else if (drm->client.device.info.chipset >= 0x18)
 995                 return 135000;
 996         else
 997                 return 112000;
 998 }
 999
1000 static enum drm_mode_status
1001 nouveau_connector_mode_valid(struct drm_connector *connector,
1002                              struct drm_display_mode *mode)
1003 {
1004         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1005         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1006         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1007         unsigned min_clock = 25000, max_clock = min_clock;
1008         unsigned clock = mode->clock;
1009         bool hdmi;
1010
1011         switch (nv_encoder->dcb->type) {
1012         case DCB_OUTPUT_LVDS:
1013                 if (nv_connector->native_mode &&
1014                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1015                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1016                         return MODE_PANEL;
1017
1018                 min_clock = 0;
1019                 max_clock = 400000;
1020                 break;
1021         case DCB_OUTPUT_TMDS:
1022                 hdmi = drm_detect_hdmi_monitor(nv_connector->edid);
1023                 max_clock = get_tmds_link_bandwidth(connector, hdmi);
1024                 if (!hdmi && nouveau_duallink &&
1025                     nv_encoder->dcb->duallink_possible)
1026                         max_clock *= 2;
1027                 break;
1028         case DCB_OUTPUT_ANALOG:
1029                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1030                 if (!max_clock)
1031                         max_clock = 350000;
1032                 break;
1033         case DCB_OUTPUT_TV:
1034                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1035         case DCB_OUTPUT_DP:
1036                 max_clock  = nv_encoder->dp.link_nr;
1037                 max_clock *= nv_encoder->dp.link_bw;
1038                 clock = clock * (connector->display_info.bpc * 3) / 10;
1039                 break;
1040         default:
1041                 BUG();
1042                 return MODE_BAD;
1043         }
1044
1045         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1046                 clock *= 2;
1047
1048         if (clock < min_clock)
1049                 return MODE_CLOCK_LOW;
1050
1051         if (clock > max_clock)
1052                 return MODE_CLOCK_HIGH;
1053
1054         return MODE_OK;
1055 }
1056
1057 static struct drm_encoder *
1058 nouveau_connector_best_encoder(struct drm_connector *connector)
1059 {
1060         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1061
1062         if (nv_connector->detected_encoder)
1063                 return to_drm_encoder(nv_connector->detected_encoder);
1064
1065         return NULL;
1066 }
1067
1068 static const struct drm_connector_helper_funcs
1069 nouveau_connector_helper_funcs = {
1070         .get_modes = nouveau_connector_get_modes,
1071         .mode_valid = nouveau_connector_mode_valid,
1072         .best_encoder = nouveau_connector_best_encoder,
1073 };
1074
1075 static const struct drm_connector_funcs
1076 nouveau_connector_funcs = {
1077         .dpms = drm_helper_connector_dpms,
1078         .reset = nouveau_conn_reset,
1079         .detect = nouveau_connector_detect,
1080         .force = nouveau_connector_force,
1081         .fill_modes = drm_helper_probe_single_connector_modes,
1082         .set_property = nouveau_connector_set_property,
1083         .destroy = nouveau_connector_destroy,
1084         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1085         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1086         .atomic_set_property = nouveau_conn_atomic_set_property,
1087         .atomic_get_property = nouveau_conn_atomic_get_property,
1088         .late_register = nouveau_connector_late_register,
1089         .early_unregister = nouveau_connector_early_unregister,
1090 };
1091
1092 static const struct drm_connector_funcs
1093 nouveau_connector_funcs_lvds = {
1094         .dpms = drm_helper_connector_dpms,
1095         .reset = nouveau_conn_reset,
1096         .detect = nouveau_connector_detect_lvds,
1097         .force = nouveau_connector_force,
1098         .fill_modes = drm_helper_probe_single_connector_modes,
1099         .set_property = nouveau_connector_set_property,
1100         .destroy = nouveau_connector_destroy,
1101         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1102         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1103         .atomic_set_property = nouveau_conn_atomic_set_property,
1104         .atomic_get_property = nouveau_conn_atomic_get_property,
1105         .late_register = nouveau_connector_late_register,
1106         .early_unregister = nouveau_connector_early_unregister,
1107 };
1108
1109 static int
1110 nouveau_connector_hotplug(struct nvif_notify *notify)
1111 {
1112         struct nouveau_connector *nv_connector =
1113                 container_of(notify, typeof(*nv_connector), hpd);
1114         struct drm_connector *connector = &nv_connector->base;
1115         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1116         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1117         const char *name = connector->name;
1118         struct nouveau_encoder *nv_encoder;
1119         int ret;
1120
1121         ret = pm_runtime_get(drm->dev->dev);
1122         if (ret == 0) {
1123                 /* We can't block here if there's a pending PM request
1124                  * running, as we'll deadlock nouveau_display_fini() when it
1125                  * calls nvif_put() on our nvif_notify struct. So, simply
1126                  * defer the hotplug event until the device finishes resuming
1127                  */
1128                 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1129                          name);
1130                 schedule_work(&drm->hpd_work);
1131
1132                 pm_runtime_put_noidle(drm->dev->dev);
1133                 return NVIF_NOTIFY_KEEP;
1134         } else if (ret != 1 && ret != -EACCES) {
1135                 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1136                         name, ret);
1137                 return NVIF_NOTIFY_DROP;
1138         }
1139
1140         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1141                 NV_DEBUG(drm, "service %s\n", name);
1142                 drm_dp_cec_irq(&nv_connector->aux);
1143                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1144                         nv50_mstm_service(nv_encoder->dp.mstm);
1145         } else {
1146                 bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1147
1148                 if (!plugged)
1149                         drm_dp_cec_unset_edid(&nv_connector->aux);
1150                 NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1151                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1152                         if (!plugged)
1153                                 nv50_mstm_remove(nv_encoder->dp.mstm);
1154                 }
1155
1156                 drm_helper_hpd_irq_event(connector->dev);
1157         }
1158
1159         pm_runtime_mark_last_busy(drm->dev->dev);
1160         pm_runtime_put_autosuspend(drm->dev->dev);
1161         return NVIF_NOTIFY_KEEP;
1162 }
1163
1164 static ssize_t
1165 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1166 {
1167         struct nouveau_connector *nv_connector =
1168                 container_of(obj, typeof(*nv_connector), aux);
1169         struct nouveau_encoder *nv_encoder;
1170         struct nvkm_i2c_aux *aux;
1171         u8 size = msg->size;
1172         int ret;
1173
1174         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1175         if (!nv_encoder || !(aux = nv_encoder->aux))
1176                 return -ENODEV;
1177         if (WARN_ON(msg->size > 16))
1178                 return -E2BIG;
1179
1180         ret = nvkm_i2c_aux_acquire(aux);
1181         if (ret)
1182                 return ret;
1183
1184         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1185                                 msg->buffer, &size);
1186         nvkm_i2c_aux_release(aux);
1187         if (ret >= 0) {
1188                 msg->reply = ret;
1189                 return size;
1190         }
1191
1192         return ret;
1193 }
1194
1195 static int
1196 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1197 {
1198         switch (dcb) {
1199         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1200         case DCB_CONNECTOR_TV_0     :
1201         case DCB_CONNECTOR_TV_1     :
1202         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1203         case DCB_CONNECTOR_DMS59_0  :
1204         case DCB_CONNECTOR_DMS59_1  :
1205         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1206         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1207         case DCB_CONNECTOR_LVDS     :
1208         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1209         case DCB_CONNECTOR_DMS59_DP0:
1210         case DCB_CONNECTOR_DMS59_DP1:
1211         case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
1212         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1213         case DCB_CONNECTOR_HDMI_0   :
1214         case DCB_CONNECTOR_HDMI_1   :
1215         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1216         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1217         default:
1218                 break;
1219         }
1220
1221         return DRM_MODE_CONNECTOR_Unknown;
1222 }
1223
1224 struct drm_connector *
1225 nouveau_connector_create(struct drm_device *dev, int index)
1226 {
1227         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1228         struct nouveau_drm *drm = nouveau_drm(dev);
1229         struct nouveau_display *disp = nouveau_display(dev);
1230         struct nouveau_connector *nv_connector = NULL;
1231         struct drm_connector *connector;
1232         struct drm_connector_list_iter conn_iter;
1233         int type, ret = 0;
1234         bool dummy;
1235
1236         drm_connector_list_iter_begin(dev, &conn_iter);
1237         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1238                 nv_connector = nouveau_connector(connector);
1239                 if (nv_connector->index == index) {
1240                         drm_connector_list_iter_end(&conn_iter);
1241                         return connector;
1242                 }
1243         }
1244         drm_connector_list_iter_end(&conn_iter);
1245
1246         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1247         if (!nv_connector)
1248                 return ERR_PTR(-ENOMEM);
1249
1250         connector = &nv_connector->base;
1251         nv_connector->index = index;
1252
1253         /* attempt to parse vbios connector type and hotplug gpio */
1254         nv_connector->dcb = olddcb_conn(dev, index);
1255         if (nv_connector->dcb) {
1256                 u32 entry = ROM16(nv_connector->dcb[0]);
1257                 if (olddcb_conntab(dev)[3] >= 4)
1258                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1259
1260                 nv_connector->type = nv_connector->dcb[0];
1261                 if (drm_conntype_from_dcb(nv_connector->type) ==
1262                                           DRM_MODE_CONNECTOR_Unknown) {
1263                         NV_WARN(drm, "unknown connector type %02x\n",
1264                                 nv_connector->type);
1265                         nv_connector->type = DCB_CONNECTOR_NONE;
1266                 }
1267
1268                 /* Gigabyte NX85T */
1269                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1270                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1271                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1272                 }
1273
1274                 /* Gigabyte GV-NX86T512H */
1275                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1276                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1277                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1278                 }
1279         } else {
1280                 nv_connector->type = DCB_CONNECTOR_NONE;
1281         }
1282
1283         /* no vbios data, or an unknown dcb connector type - attempt to
1284          * figure out something suitable ourselves
1285          */
1286         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1287                 struct nouveau_drm *drm = nouveau_drm(dev);
1288                 struct dcb_table *dcbt = &drm->vbios.dcb;
1289                 u32 encoders = 0;
1290                 int i;
1291
1292                 for (i = 0; i < dcbt->entries; i++) {
1293                         if (dcbt->entry[i].connector == nv_connector->index)
1294                                 encoders |= (1 << dcbt->entry[i].type);
1295                 }
1296
1297                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1298                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1299                                 nv_connector->type = DCB_CONNECTOR_DP;
1300                         else
1301                                 nv_connector->type = DCB_CONNECTOR_eDP;
1302                 } else
1303                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1304                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1305                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1306                         else
1307                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1308                 } else
1309                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1310                         nv_connector->type = DCB_CONNECTOR_VGA;
1311                 } else
1312                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1313                         nv_connector->type = DCB_CONNECTOR_LVDS;
1314                 } else
1315                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1316                         nv_connector->type = DCB_CONNECTOR_TV_0;
1317                 }
1318         }
1319
1320         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1321         case DRM_MODE_CONNECTOR_LVDS:
1322                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1323                 if (ret) {
1324                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1325                         kfree(nv_connector);
1326                         return ERR_PTR(ret);
1327                 }
1328
1329                 funcs = &nouveau_connector_funcs_lvds;
1330                 break;
1331         case DRM_MODE_CONNECTOR_DisplayPort:
1332         case DRM_MODE_CONNECTOR_eDP:
1333                 nv_connector->aux.dev = dev->dev;
1334                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1335                 ret = drm_dp_aux_register(&nv_connector->aux);
1336                 if (ret) {
1337                         NV_ERROR(drm, "failed to register aux channel\n");
1338                         kfree(nv_connector);
1339                         return ERR_PTR(ret);
1340                 }
1341                 funcs = &nouveau_connector_funcs;
1342                 break;
1343         default:
1344                 funcs = &nouveau_connector_funcs;
1345                 break;
1346         }
1347
1348         /* HDMI 3D support */
1349         if ((disp->disp.object.oclass >= G82_DISP)
1350             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1351                 || (type == DRM_MODE_CONNECTOR_eDP)
1352                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1353                 connector->stereo_allowed = true;
1354
1355         /* defaults, will get overridden in detect() */
1356         connector->interlace_allowed = false;
1357         connector->doublescan_allowed = false;
1358
1359         drm_connector_init(dev, connector, funcs, type);
1360         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1361
1362         connector->funcs->reset(connector);
1363         nouveau_conn_attach_properties(connector);
1364
1365         /* Default scaling mode */
1366         switch (nv_connector->type) {
1367         case DCB_CONNECTOR_LVDS:
1368         case DCB_CONNECTOR_LVDS_SPWG:
1369         case DCB_CONNECTOR_eDP:
1370                 /* see note in nouveau_connector_set_property() */
1371                 if (disp->disp.object.oclass < NV50_DISP) {
1372                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1373                         break;
1374                 }
1375                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1376                 break;
1377         default:
1378                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1379                 break;
1380         }
1381
1382         /* dithering properties */
1383         switch (nv_connector->type) {
1384         case DCB_CONNECTOR_TV_0:
1385         case DCB_CONNECTOR_TV_1:
1386         case DCB_CONNECTOR_TV_3:
1387         case DCB_CONNECTOR_VGA:
1388                 break;
1389         default:
1390                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1391                 break;
1392         }
1393
1394         switch (type) {
1395         case DRM_MODE_CONNECTOR_DisplayPort:
1396         case DRM_MODE_CONNECTOR_eDP:
1397                 drm_dp_cec_register_connector(&nv_connector->aux,
1398                                               connector->name, dev->dev);
1399                 break;
1400         }
1401
1402         ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1403                                true, NV04_DISP_NTFY_CONN,
1404                                &(struct nvif_notify_conn_req_v0) {
1405                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1406                                 .conn = index,
1407                                },
1408                                sizeof(struct nvif_notify_conn_req_v0),
1409                                sizeof(struct nvif_notify_conn_rep_v0),
1410                                &nv_connector->hpd);
1411         if (ret)
1412                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1413         else
1414                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1415
1416         drm_connector_register(connector);
1417         return connector;
1418 }