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 "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_connector *nv_connector = nouveau_connector(connector);
 249         struct nouveau_conn_atom *asyc;
 250
 251         if (drm_drv_uses_atomic_modeset(connector->dev)) {
 252                 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 253                         return;
 254
 255                 if (connector->state)
 256                         nouveau_conn_atomic_destroy_state(connector,
 257                                                           connector->state);
 258
 259                 __drm_atomic_helper_connector_reset(connector, &asyc->state);
 260         } else {
 261                 asyc = &nv_connector->properties_state;
 262         }
 263
 264         asyc->dither.mode = DITHERING_MODE_AUTO;
 265         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 266         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 267         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 268         asyc->procamp.color_vibrance = 150;
 269         asyc->procamp.vibrant_hue = 90;
 270
 271         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 272                 switch (connector->connector_type) {
 273                 case DRM_MODE_CONNECTOR_LVDS:
 274                         /* See note in nouveau_conn_atomic_set_property(). */
 275                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 276                         break;
 277                 default:
 278                         break;
 279                 }
 280         }
 281 }
 282
 283 void
 284 nouveau_conn_attach_properties(struct drm_connector *connector)
 285 {
 286         struct drm_device *dev = connector->dev;
 287         struct nouveau_display *disp = nouveau_display(dev);
 288         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 289         struct nouveau_conn_atom *armc;
 290
 291         if (drm_drv_uses_atomic_modeset(connector->dev))
 292                 armc = nouveau_conn_atom(connector->state);
 293         else
 294                 armc = &nv_connector->properties_state;
 295
 296         /* Init DVI-I specific properties. */
 297         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 298                 drm_object_attach_property(&connector->base, dev->mode_config.
 299                                            dvi_i_subconnector_property, 0);
 300
 301         /* Add overscan compensation options to digital outputs. */
 302         if (disp->underscan_property &&
 303             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 304              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 305              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 306              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 307                 drm_object_attach_property(&connector->base,
 308                                            disp->underscan_property,
 309                                            UNDERSCAN_OFF);
 310                 drm_object_attach_property(&connector->base,
 311                                            disp->underscan_hborder_property, 0);
 312                 drm_object_attach_property(&connector->base,
 313                                            disp->underscan_vborder_property, 0);
 314         }
 315
 316         /* Add hue and saturation options. */
 317         if (disp->vibrant_hue_property)
 318                 drm_object_attach_property(&connector->base,
 319                                            disp->vibrant_hue_property,
 320                                            armc->procamp.vibrant_hue);
 321         if (disp->color_vibrance_property)
 322                 drm_object_attach_property(&connector->base,
 323                                            disp->color_vibrance_property,
 324                                            armc->procamp.color_vibrance);
 325
 326         /* Scaling mode property. */
 327         switch (connector->connector_type) {
 328         case DRM_MODE_CONNECTOR_TV:
 329                 break;
 330         case DRM_MODE_CONNECTOR_VGA:
 331                 if (disp->disp.object.oclass < NV50_DISP)
 332                         break; /* Can only scale on DFPs. */
 333                 /* Fall-through. */
 334         default:
 335                 drm_object_attach_property(&connector->base, dev->mode_config.
 336                                            scaling_mode_property,
 337                                            armc->scaler.mode);
 338                 break;
 339         }
 340
 341         /* Dithering properties. */
 342         switch (connector->connector_type) {
 343         case DRM_MODE_CONNECTOR_TV:
 344         case DRM_MODE_CONNECTOR_VGA:
 345                 break;
 346         default:
 347                 if (disp->dithering_mode) {
 348                         drm_object_attach_property(&connector->base,
 349                                                    disp->dithering_mode,
 350                                                    armc->dither.mode);
 351                 }
 352                 if (disp->dithering_depth) {
 353                         drm_object_attach_property(&connector->base,
 354                                                    disp->dithering_depth,
 355                                                    armc->dither.depth);
 356                 }
 357                 break;
 358         }
 359 }
 360
 361 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 362 int nouveau_tv_disable = 0;
 363 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 364
 365 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 366 int nouveau_ignorelid = 0;
 367 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 368
 369 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 370 int nouveau_duallink = 1;
 371 module_param_named(duallink, nouveau_duallink, int, 0400);
 372
 373 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 374 int nouveau_hdmimhz = 0;
 375 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 376
 377 struct nouveau_encoder *
 378 find_encoder(struct drm_connector *connector, int type)
 379 {
 380         struct nouveau_encoder *nv_encoder;
 381         struct drm_encoder *enc;
 382
 383         drm_connector_for_each_possible_encoder(connector, enc) {
 384                 nv_encoder = nouveau_encoder(enc);
 385
 386                 if (type == DCB_OUTPUT_ANY ||
 387                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 388                         return nv_encoder;
 389         }
 390
 391         return NULL;
 392 }
 393
 394 struct nouveau_connector *
 395 nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 396 {
 397         struct drm_device *dev = to_drm_encoder(encoder)->dev;
 398         struct drm_connector *drm_connector;
 399
 400         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 401                 if (drm_connector->encoder == to_drm_encoder(encoder))
 402                         return nouveau_connector(drm_connector);
 403         }
 404
 405         return NULL;
 406 }
 407
 408 static void
 409 nouveau_connector_destroy(struct drm_connector *connector)
 410 {
 411         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 412         nvif_notify_fini(&nv_connector->hpd);
 413         kfree(nv_connector->edid);
 414         drm_connector_unregister(connector);
 415         drm_connector_cleanup(connector);
 416         if (nv_connector->aux.transfer) {
 417                 drm_dp_cec_unregister_connector(&nv_connector->aux);
 418                 drm_dp_aux_unregister(&nv_connector->aux);
 419                 kfree(nv_connector->aux.name);
 420         }
 421         kfree(connector);
 422 }
 423
 424 static struct nouveau_encoder *
 425 nouveau_connector_ddc_detect(struct drm_connector *connector)
 426 {
 427         struct drm_device *dev = connector->dev;
 428         struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
 429         struct drm_encoder *encoder;
 430         int ret;
 431         bool switcheroo_ddc = false;
 432
 433         drm_connector_for_each_possible_encoder(connector, encoder) {
 434                 nv_encoder = nouveau_encoder(encoder);
 435
 436                 switch (nv_encoder->dcb->type) {
 437                 case DCB_OUTPUT_DP:
 438                         ret = nouveau_dp_detect(nv_encoder);
 439                         if (ret == NOUVEAU_DP_MST)
 440                                 return NULL;
 441                         else if (ret == NOUVEAU_DP_SST)
 442                                 found = nv_encoder;
 443
 444                         break;
 445                 case DCB_OUTPUT_LVDS:
 446                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 447                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 448                 /* fall-through */
 449                 default:
 450                         if (!nv_encoder->i2c)
 451                                 break;
 452
 453                         if (switcheroo_ddc)
 454                                 vga_switcheroo_lock_ddc(dev->pdev);
 455                         if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 456                                 found = nv_encoder;
 457                         if (switcheroo_ddc)
 458                                 vga_switcheroo_unlock_ddc(dev->pdev);
 459
 460                         break;
 461                 }
 462                 if (found)
 463                         break;
 464         }
 465
 466         return found;
 467 }
 468
 469 static struct nouveau_encoder *
 470 nouveau_connector_of_detect(struct drm_connector *connector)
 471 {
 472 #ifdef __powerpc__
 473         struct drm_device *dev = connector->dev;
 474         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 475         struct nouveau_encoder *nv_encoder;
 476         struct device_node *cn, *dn = pci_device_to_OF_node(dev->pdev);
 477
 478         if (!dn ||
 479             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 480               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 481                 return NULL;
 482
 483         for_each_child_of_node(dn, cn) {
 484                 const char *name = of_get_property(cn, "name", NULL);
 485                 const void *edid = of_get_property(cn, "EDID", NULL);
 486                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 487
 488                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 489                         nv_connector->edid =
 490                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 491                         of_node_put(cn);
 492                         return nv_encoder;
 493                 }
 494         }
 495 #endif
 496         return NULL;
 497 }
 498
 499 static void
 500 nouveau_connector_set_encoder(struct drm_connector *connector,
 501                               struct nouveau_encoder *nv_encoder)
 502 {
 503         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 504         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 505         struct drm_device *dev = connector->dev;
 506
 507         if (nv_connector->detected_encoder == nv_encoder)
 508                 return;
 509         nv_connector->detected_encoder = nv_encoder;
 510
 511         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 512                 connector->interlace_allowed = true;
 513                 connector->doublescan_allowed = true;
 514         } else
 515         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 516             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 517                 connector->doublescan_allowed = false;
 518                 connector->interlace_allowed = false;
 519         } else {
 520                 connector->doublescan_allowed = true;
 521                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 522                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 523                      (dev->pdev->device & 0x0ff0) != 0x0100 &&
 524                      (dev->pdev->device & 0x0ff0) != 0x0150))
 525                         /* HW is broken */
 526                         connector->interlace_allowed = false;
 527                 else
 528                         connector->interlace_allowed = true;
 529         }
 530
 531         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 532                 drm_object_property_set_value(&connector->base,
 533                         dev->mode_config.dvi_i_subconnector_property,
 534                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 535                         DRM_MODE_SUBCONNECTOR_DVID :
 536                         DRM_MODE_SUBCONNECTOR_DVIA);
 537         }
 538 }
 539
 540 static enum drm_connector_status
 541 nouveau_connector_detect(struct drm_connector *connector, bool force)
 542 {
 543         struct drm_device *dev = connector->dev;
 544         struct nouveau_drm *drm = nouveau_drm(dev);
 545         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 546         struct nouveau_encoder *nv_encoder = NULL;
 547         struct nouveau_encoder *nv_partner;
 548         struct i2c_adapter *i2c;
 549         int type;
 550         int ret;
 551         enum drm_connector_status conn_status = connector_status_disconnected;
 552
 553         /* Cleanup the previous EDID block. */
 554         if (nv_connector->edid) {
 555                 drm_connector_update_edid_property(connector, NULL);
 556                 kfree(nv_connector->edid);
 557                 nv_connector->edid = NULL;
 558         }
 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                         return conn_status;
 572         }
 573
 574         nv_encoder = nouveau_connector_ddc_detect(connector);
 575         if (nv_encoder && (i2c = nv_encoder->i2c) != NULL) {
 576                 if ((vga_switcheroo_handler_flags() &
 577                      VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 578                     nv_connector->type == DCB_CONNECTOR_LVDS)
 579                         nv_connector->edid = drm_get_edid_switcheroo(connector,
 580                                                                      i2c);
 581                 else
 582                         nv_connector->edid = drm_get_edid(connector, i2c);
 583
 584                 drm_connector_update_edid_property(connector,
 585                                                         nv_connector->edid);
 586                 if (!nv_connector->edid) {
 587                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 588                                  connector->name);
 589                         goto detect_analog;
 590                 }
 591
 592                 /* Override encoder type for DVI-I based on whether EDID
 593                  * says the display is digital or analog, both use the
 594                  * same i2c channel so the value returned from ddc_detect
 595                  * isn't necessarily correct.
 596                  */
 597                 nv_partner = NULL;
 598                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 599                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 600                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 601                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 602
 603                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 604                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 605                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 606                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 607                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 608                                 type = DCB_OUTPUT_TMDS;
 609                         else
 610                                 type = DCB_OUTPUT_ANALOG;
 611
 612                         nv_encoder = find_encoder(connector, type);
 613                 }
 614
 615                 nouveau_connector_set_encoder(connector, nv_encoder);
 616                 conn_status = connector_status_connected;
 617                 drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
 618                 goto out;
 619         }
 620
 621         nv_encoder = nouveau_connector_of_detect(connector);
 622         if (nv_encoder) {
 623                 nouveau_connector_set_encoder(connector, nv_encoder);
 624                 conn_status = connector_status_connected;
 625                 goto out;
 626         }
 627
 628 detect_analog:
 629         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 630         if (!nv_encoder && !nouveau_tv_disable)
 631                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 632         if (nv_encoder && force) {
 633                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 634                 const struct drm_encoder_helper_funcs *helper =
 635                                                 encoder->helper_private;
 636
 637                 if (helper->detect(encoder, connector) ==
 638                                                 connector_status_connected) {
 639                         nouveau_connector_set_encoder(connector, nv_encoder);
 640                         conn_status = connector_status_connected;
 641                         goto out;
 642                 }
 643
 644         }
 645
 646  out:
 647
 648         pm_runtime_mark_last_busy(dev->dev);
 649         pm_runtime_put_autosuspend(dev->dev);
 650
 651         return conn_status;
 652 }
 653
 654 static enum drm_connector_status
 655 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 656 {
 657         struct drm_device *dev = connector->dev;
 658         struct nouveau_drm *drm = nouveau_drm(dev);
 659         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 660         struct nouveau_encoder *nv_encoder = NULL;
 661         enum drm_connector_status status = connector_status_disconnected;
 662
 663         /* Cleanup the previous EDID block. */
 664         if (nv_connector->edid) {
 665                 drm_connector_update_edid_property(connector, NULL);
 666                 kfree(nv_connector->edid);
 667                 nv_connector->edid = NULL;
 668         }
 669
 670         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 671         if (!nv_encoder)
 672                 return connector_status_disconnected;
 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                         goto out;
 679         }
 680
 681         /* On some laptops (Sony, i'm looking at you) there appears to
 682          * be no direct way of accessing the panel's EDID.  The only
 683          * option available to us appears to be to ask ACPI for help..
 684          *
 685          * It's important this check's before trying straps, one of the
 686          * said manufacturer's laptops are configured in such a way
 687          * the nouveau decides an entry in the VBIOS FP mode table is
 688          * valid - it's not (rh#613284)
 689          */
 690         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 691                 if ((nv_connector->edid = nouveau_acpi_edid(dev, connector))) {
 692                         status = connector_status_connected;
 693                         goto out;
 694                 }
 695         }
 696
 697         /* If no EDID found above, and the VBIOS indicates a hardcoded
 698          * modeline is avalilable for the panel, set it as the panel's
 699          * native mode and exit.
 700          */
 701         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 702             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 703                 status = connector_status_connected;
 704                 goto out;
 705         }
 706
 707         /* Still nothing, some VBIOS images have a hardcoded EDID block
 708          * stored for the panel stored in them.
 709          */
 710         if (!drm->vbios.fp_no_ddc) {
 711                 struct edid *edid =
 712                         (struct edid *)nouveau_bios_embedded_edid(dev);
 713                 if (edid) {
 714                         nv_connector->edid =
 715                                         kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 716                         if (nv_connector->edid)
 717                                 status = connector_status_connected;
 718                 }
 719         }
 720
 721 out:
 722 #if defined(CONFIG_ACPI_BUTTON) || \
 723         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 724         if (status == connector_status_connected &&
 725             !nouveau_ignorelid && !acpi_lid_open())
 726                 status = connector_status_unknown;
 727 #endif
 728
 729         drm_connector_update_edid_property(connector, nv_connector->edid);
 730         nouveau_connector_set_encoder(connector, nv_encoder);
 731         return status;
 732 }
 733
 734 static void
 735 nouveau_connector_force(struct drm_connector *connector)
 736 {
 737         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 738         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 739         struct nouveau_encoder *nv_encoder;
 740         int type;
 741
 742         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 743                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 744                         type = DCB_OUTPUT_TMDS;
 745                 else
 746                         type = DCB_OUTPUT_ANALOG;
 747         } else
 748                 type = DCB_OUTPUT_ANY;
 749
 750         nv_encoder = find_encoder(connector, type);
 751         if (!nv_encoder) {
 752                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 753                          connector->name);
 754                 connector->status = connector_status_disconnected;
 755                 return;
 756         }
 757
 758         nouveau_connector_set_encoder(connector, nv_encoder);
 759 }
 760
 761 static int
 762 nouveau_connector_set_property(struct drm_connector *connector,
 763                                struct drm_property *property, uint64_t value)
 764 {
 765         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 766         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 767         struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
 768         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 769         int ret;
 770
 771         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 772                                                     &asyc->state,
 773                                                     property, value);
 774         if (ret) {
 775                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 776                         return get_slave_funcs(encoder)->set_property(
 777                                 encoder, connector, property, value);
 778                 return ret;
 779         }
 780
 781         nv_connector->scaling_mode = asyc->scaler.mode;
 782         nv_connector->dithering_mode = asyc->dither.mode;
 783
 784         if (connector->encoder && connector->encoder->crtc) {
 785                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 786                                               &connector->encoder->crtc->mode,
 787                                                connector->encoder->crtc->x,
 788                                                connector->encoder->crtc->y,
 789                                                NULL);
 790                 if (!ret)
 791                         return -EINVAL;
 792         }
 793
 794         return 0;
 795 }
 796
 797 struct moderec {
 798         int hdisplay;
 799         int vdisplay;
 800 };
 801
 802 static struct moderec scaler_modes[] = {
 803         { 1920, 1200 },
 804         { 1920, 1080 },
 805         { 1680, 1050 },
 806         { 1600, 1200 },
 807         { 1400, 1050 },
 808         { 1280, 1024 },
 809         { 1280, 960 },
 810         { 1152, 864 },
 811         { 1024, 768 },
 812         { 800, 600 },
 813         { 720, 400 },
 814         { 640, 480 },
 815         { 640, 400 },
 816         { 640, 350 },
 817         {}
 818 };
 819
 820 static int
 821 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 822 {
 823         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 824         struct drm_display_mode *native = nv_connector->native_mode, *m;
 825         struct drm_device *dev = connector->dev;
 826         struct moderec *mode = &scaler_modes[0];
 827         int modes = 0;
 828
 829         if (!native)
 830                 return 0;
 831
 832         while (mode->hdisplay) {
 833                 if (mode->hdisplay <= native->hdisplay &&
 834                     mode->vdisplay <= native->vdisplay &&
 835                     (mode->hdisplay != native->hdisplay ||
 836                      mode->vdisplay != native->vdisplay)) {
 837                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 838                                          drm_mode_vrefresh(native), false,
 839                                          false, false);
 840                         if (!m)
 841                                 continue;
 842
 843                         drm_mode_probed_add(connector, m);
 844                         modes++;
 845                 }
 846
 847                 mode++;
 848         }
 849
 850         return modes;
 851 }
 852
 853 static void
 854 nouveau_connector_detect_depth(struct drm_connector *connector)
 855 {
 856         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 857         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 858         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 859         struct nvbios *bios = &drm->vbios;
 860         struct drm_display_mode *mode = nv_connector->native_mode;
 861         bool duallink;
 862
 863         /* if the edid is feeling nice enough to provide this info, use it */
 864         if (nv_connector->edid && connector->display_info.bpc)
 865                 return;
 866
 867         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 868         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 869                 connector->display_info.bpc = 6;
 870                 return;
 871         }
 872
 873         /* we're out of options unless we're LVDS, default to 8bpc */
 874         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 875                 connector->display_info.bpc = 8;
 876                 return;
 877         }
 878
 879         connector->display_info.bpc = 6;
 880
 881         /* LVDS: panel straps */
 882         if (bios->fp_no_ddc) {
 883                 if (bios->fp.if_is_24bit)
 884                         connector->display_info.bpc = 8;
 885                 return;
 886         }
 887
 888         /* LVDS: DDC panel, need to first determine the number of links to
 889          * know which if_is_24bit flag to check...
 890          */
 891         if (nv_connector->edid &&
 892             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 893                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 894         else
 895                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 896
 897         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 898             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 899                 connector->display_info.bpc = 8;
 900 }
 901
 902 static int
 903 nouveau_connector_late_register(struct drm_connector *connector)
 904 {
 905         int ret;
 906
 907         ret = nouveau_backlight_init(connector);
 908
 909         return ret;
 910 }
 911
 912 static void
 913 nouveau_connector_early_unregister(struct drm_connector *connector)
 914 {
 915         nouveau_backlight_fini(connector);
 916 }
 917
 918 static int
 919 nouveau_connector_get_modes(struct drm_connector *connector)
 920 {
 921         struct drm_device *dev = connector->dev;
 922         struct nouveau_drm *drm = nouveau_drm(dev);
 923         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 924         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 925         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 926         int ret = 0;
 927
 928         /* destroy the native mode, the attached monitor could have changed.
 929          */
 930         if (nv_connector->native_mode) {
 931                 drm_mode_destroy(dev, nv_connector->native_mode);
 932                 nv_connector->native_mode = NULL;
 933         }
 934
 935         if (nv_connector->edid)
 936                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 937         else
 938         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 939             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 940              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 941                 struct drm_display_mode mode;
 942
 943                 nouveau_bios_fp_mode(dev, &mode);
 944                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 945         }
 946
 947         /* Determine display colour depth for everything except LVDS now,
 948          * DP requires this before mode_valid() is called.
 949          */
 950         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 951                 nouveau_connector_detect_depth(connector);
 952
 953         /* Find the native mode if this is a digital panel, if we didn't
 954          * find any modes through DDC previously add the native mode to
 955          * the list of modes.
 956          */
 957         if (!nv_connector->native_mode)
 958                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
 959         if (ret == 0 && nv_connector->native_mode) {
 960                 struct drm_display_mode *mode;
 961
 962                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
 963                 drm_mode_probed_add(connector, mode);
 964                 ret = 1;
 965         }
 966
 967         /* Determine LVDS colour depth, must happen after determining
 968          * "native" mode as some VBIOS tables require us to use the
 969          * pixel clock as part of the lookup...
 970          */
 971         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
 972                 nouveau_connector_detect_depth(connector);
 973
 974         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 975                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 976
 977         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
 978             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
 979             nv_connector->type == DCB_CONNECTOR_eDP)
 980                 ret += nouveau_connector_scaler_modes_add(connector);
 981
 982         return ret;
 983 }
 984
 985 static unsigned
 986 get_tmds_link_bandwidth(struct drm_connector *connector)
 987 {
 988         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 989         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 990         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 991         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
 992         struct drm_display_info *info = NULL;
 993         unsigned duallink_scale =
 994                 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
 995
 996         if (drm_detect_hdmi_monitor(nv_connector->edid)) {
 997                 info = &nv_connector->base.display_info;
 998                 duallink_scale = 1;
 999         }
1000
1001         if (info) {
1002                 if (nouveau_hdmimhz > 0)
1003                         return nouveau_hdmimhz * 1000;
1004                 /* Note: these limits are conservative, some Fermi's
1005                  * can do 297 MHz. Unclear how this can be determined.
1006                  */
1007                 if (drm->client.device.info.chipset >= 0x120) {
1008                         const int max_tmds_clock =
1009                                 info->hdmi.scdc.scrambling.supported ?
1010                                 594000 : 340000;
1011                         return info->max_tmds_clock ?
1012                                 min(info->max_tmds_clock, max_tmds_clock) :
1013                                 max_tmds_clock;
1014                 }
1015                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1016                         return 297000;
1017                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1018                         return 225000;
1019         }
1020
1021         if (dcb->location != DCB_LOC_ON_CHIP ||
1022             drm->client.device.info.chipset >= 0x46)
1023                 return 165000 * duallink_scale;
1024         else if (drm->client.device.info.chipset >= 0x40)
1025                 return 155000 * duallink_scale;
1026         else if (drm->client.device.info.chipset >= 0x18)
1027                 return 135000 * duallink_scale;
1028         else
1029                 return 112000 * duallink_scale;
1030 }
1031
1032 static enum drm_mode_status
1033 nouveau_connector_mode_valid(struct drm_connector *connector,
1034                              struct drm_display_mode *mode)
1035 {
1036         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1037         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1038         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1039         unsigned min_clock = 25000, max_clock = min_clock;
1040         unsigned clock = mode->clock;
1041
1042         switch (nv_encoder->dcb->type) {
1043         case DCB_OUTPUT_LVDS:
1044                 if (nv_connector->native_mode &&
1045                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1046                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1047                         return MODE_PANEL;
1048
1049                 min_clock = 0;
1050                 max_clock = 400000;
1051                 break;
1052         case DCB_OUTPUT_TMDS:
1053                 max_clock = get_tmds_link_bandwidth(connector);
1054                 break;
1055         case DCB_OUTPUT_ANALOG:
1056                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1057                 if (!max_clock)
1058                         max_clock = 350000;
1059                 break;
1060         case DCB_OUTPUT_TV:
1061                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1062         case DCB_OUTPUT_DP:
1063                 max_clock  = nv_encoder->dp.link_nr;
1064                 max_clock *= nv_encoder->dp.link_bw;
1065                 clock = clock * (connector->display_info.bpc * 3) / 10;
1066                 break;
1067         default:
1068                 BUG();
1069                 return MODE_BAD;
1070         }
1071
1072         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1073                 clock *= 2;
1074
1075         if (clock < min_clock)
1076                 return MODE_CLOCK_LOW;
1077
1078         if (clock > max_clock)
1079                 return MODE_CLOCK_HIGH;
1080
1081         return MODE_OK;
1082 }
1083
1084 static struct drm_encoder *
1085 nouveau_connector_best_encoder(struct drm_connector *connector)
1086 {
1087         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1088
1089         if (nv_connector->detected_encoder)
1090                 return to_drm_encoder(nv_connector->detected_encoder);
1091
1092         return NULL;
1093 }
1094
1095 static const struct drm_connector_helper_funcs
1096 nouveau_connector_helper_funcs = {
1097         .get_modes = nouveau_connector_get_modes,
1098         .mode_valid = nouveau_connector_mode_valid,
1099         .best_encoder = nouveau_connector_best_encoder,
1100 };
1101
1102 static const struct drm_connector_funcs
1103 nouveau_connector_funcs = {
1104         .dpms = drm_helper_connector_dpms,
1105         .reset = nouveau_conn_reset,
1106         .detect = nouveau_connector_detect,
1107         .force = nouveau_connector_force,
1108         .fill_modes = drm_helper_probe_single_connector_modes,
1109         .set_property = nouveau_connector_set_property,
1110         .destroy = nouveau_connector_destroy,
1111         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1112         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1113         .atomic_set_property = nouveau_conn_atomic_set_property,
1114         .atomic_get_property = nouveau_conn_atomic_get_property,
1115         .late_register = nouveau_connector_late_register,
1116         .early_unregister = nouveau_connector_early_unregister,
1117 };
1118
1119 static const struct drm_connector_funcs
1120 nouveau_connector_funcs_lvds = {
1121         .dpms = drm_helper_connector_dpms,
1122         .reset = nouveau_conn_reset,
1123         .detect = nouveau_connector_detect_lvds,
1124         .force = nouveau_connector_force,
1125         .fill_modes = drm_helper_probe_single_connector_modes,
1126         .set_property = nouveau_connector_set_property,
1127         .destroy = nouveau_connector_destroy,
1128         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1129         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1130         .atomic_set_property = nouveau_conn_atomic_set_property,
1131         .atomic_get_property = nouveau_conn_atomic_get_property,
1132         .late_register = nouveau_connector_late_register,
1133         .early_unregister = nouveau_connector_early_unregister,
1134 };
1135
1136 static int
1137 nouveau_connector_hotplug(struct nvif_notify *notify)
1138 {
1139         struct nouveau_connector *nv_connector =
1140                 container_of(notify, typeof(*nv_connector), hpd);
1141         struct drm_connector *connector = &nv_connector->base;
1142         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1143         const struct nvif_notify_conn_rep_v0 *rep = notify->data;
1144         const char *name = connector->name;
1145         struct nouveau_encoder *nv_encoder;
1146         int ret;
1147         bool plugged = (rep->mask != NVIF_NOTIFY_CONN_V0_UNPLUG);
1148
1149         if (rep->mask & NVIF_NOTIFY_CONN_V0_IRQ) {
1150                 NV_DEBUG(drm, "service %s\n", name);
1151                 drm_dp_cec_irq(&nv_connector->aux);
1152                 if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP)))
1153                         nv50_mstm_service(nv_encoder->dp.mstm);
1154
1155                 return NVIF_NOTIFY_KEEP;
1156         }
1157
1158         ret = pm_runtime_get(drm->dev->dev);
1159         if (ret == 0) {
1160                 /* We can't block here if there's a pending PM request
1161                  * running, as we'll deadlock nouveau_display_fini() when it
1162                  * calls nvif_put() on our nvif_notify struct. So, simply
1163                  * defer the hotplug event until the device finishes resuming
1164                  */
1165                 NV_DEBUG(drm, "Deferring HPD on %s until runtime resume\n",
1166                          name);
1167                 schedule_work(&drm->hpd_work);
1168
1169                 pm_runtime_put_noidle(drm->dev->dev);
1170                 return NVIF_NOTIFY_KEEP;
1171         } else if (ret != 1 && ret != -EACCES) {
1172                 NV_WARN(drm, "HPD on %s dropped due to RPM failure: %d\n",
1173                         name, ret);
1174                 return NVIF_NOTIFY_DROP;
1175         }
1176
1177         if (!plugged)
1178                 drm_dp_cec_unset_edid(&nv_connector->aux);
1179         NV_DEBUG(drm, "%splugged %s\n", plugged ? "" : "un", name);
1180         if ((nv_encoder = find_encoder(connector, DCB_OUTPUT_DP))) {
1181                 if (!plugged)
1182                         nv50_mstm_remove(nv_encoder->dp.mstm);
1183         }
1184
1185         drm_helper_hpd_irq_event(connector->dev);
1186
1187         pm_runtime_mark_last_busy(drm->dev->dev);
1188         pm_runtime_put_autosuspend(drm->dev->dev);
1189         return NVIF_NOTIFY_KEEP;
1190 }
1191
1192 static ssize_t
1193 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1194 {
1195         struct nouveau_connector *nv_connector =
1196                 container_of(obj, typeof(*nv_connector), aux);
1197         struct nouveau_encoder *nv_encoder;
1198         struct nvkm_i2c_aux *aux;
1199         u8 size = msg->size;
1200         int ret;
1201
1202         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1203         if (!nv_encoder || !(aux = nv_encoder->aux))
1204                 return -ENODEV;
1205         if (WARN_ON(msg->size > 16))
1206                 return -E2BIG;
1207
1208         ret = nvkm_i2c_aux_acquire(aux);
1209         if (ret)
1210                 return ret;
1211
1212         ret = nvkm_i2c_aux_xfer(aux, false, msg->request, msg->address,
1213                                 msg->buffer, &size);
1214         nvkm_i2c_aux_release(aux);
1215         if (ret >= 0) {
1216                 msg->reply = ret;
1217                 return size;
1218         }
1219
1220         return ret;
1221 }
1222
1223 static int
1224 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1225 {
1226         switch (dcb) {
1227         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1228         case DCB_CONNECTOR_TV_0     :
1229         case DCB_CONNECTOR_TV_1     :
1230         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1231         case DCB_CONNECTOR_DMS59_0  :
1232         case DCB_CONNECTOR_DMS59_1  :
1233         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1234         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1235         case DCB_CONNECTOR_LVDS     :
1236         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1237         case DCB_CONNECTOR_DMS59_DP0:
1238         case DCB_CONNECTOR_DMS59_DP1:
1239         case DCB_CONNECTOR_DP       :
1240         case DCB_CONNECTOR_USB_C    : return DRM_MODE_CONNECTOR_DisplayPort;
1241         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1242         case DCB_CONNECTOR_HDMI_0   :
1243         case DCB_CONNECTOR_HDMI_1   :
1244         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1245         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1246         default:
1247                 break;
1248         }
1249
1250         return DRM_MODE_CONNECTOR_Unknown;
1251 }
1252
1253 struct drm_connector *
1254 nouveau_connector_create(struct drm_device *dev,
1255                          const struct dcb_output *dcbe)
1256 {
1257         const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
1258         struct nouveau_drm *drm = nouveau_drm(dev);
1259         struct nouveau_display *disp = nouveau_display(dev);
1260         struct nouveau_connector *nv_connector = NULL;
1261         struct drm_connector *connector;
1262         struct drm_connector_list_iter conn_iter;
1263         char aux_name[48] = {0};
1264         int index = dcbe->connector;
1265         int type, ret = 0;
1266         bool dummy;
1267
1268         drm_connector_list_iter_begin(dev, &conn_iter);
1269         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1270                 nv_connector = nouveau_connector(connector);
1271                 if (nv_connector->index == index) {
1272                         drm_connector_list_iter_end(&conn_iter);
1273                         return connector;
1274                 }
1275         }
1276         drm_connector_list_iter_end(&conn_iter);
1277
1278         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1279         if (!nv_connector)
1280                 return ERR_PTR(-ENOMEM);
1281
1282         connector = &nv_connector->base;
1283         nv_connector->index = index;
1284
1285         /* attempt to parse vbios connector type and hotplug gpio */
1286         nv_connector->dcb = olddcb_conn(dev, index);
1287         if (nv_connector->dcb) {
1288                 u32 entry = ROM16(nv_connector->dcb[0]);
1289                 if (olddcb_conntab(dev)[3] >= 4)
1290                         entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
1291
1292                 nv_connector->type = nv_connector->dcb[0];
1293                 if (drm_conntype_from_dcb(nv_connector->type) ==
1294                                           DRM_MODE_CONNECTOR_Unknown) {
1295                         NV_WARN(drm, "unknown connector type %02x\n",
1296                                 nv_connector->type);
1297                         nv_connector->type = DCB_CONNECTOR_NONE;
1298                 }
1299
1300                 /* Gigabyte NX85T */
1301                 if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
1302                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1303                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1304                 }
1305
1306                 /* Gigabyte GV-NX86T512H */
1307                 if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
1308                         if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
1309                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1310                 }
1311         } else {
1312                 nv_connector->type = DCB_CONNECTOR_NONE;
1313         }
1314
1315         /* no vbios data, or an unknown dcb connector type - attempt to
1316          * figure out something suitable ourselves
1317          */
1318         if (nv_connector->type == DCB_CONNECTOR_NONE) {
1319                 struct nouveau_drm *drm = nouveau_drm(dev);
1320                 struct dcb_table *dcbt = &drm->vbios.dcb;
1321                 u32 encoders = 0;
1322                 int i;
1323
1324                 for (i = 0; i < dcbt->entries; i++) {
1325                         if (dcbt->entry[i].connector == nv_connector->index)
1326                                 encoders |= (1 << dcbt->entry[i].type);
1327                 }
1328
1329                 if (encoders & (1 << DCB_OUTPUT_DP)) {
1330                         if (encoders & (1 << DCB_OUTPUT_TMDS))
1331                                 nv_connector->type = DCB_CONNECTOR_DP;
1332                         else
1333                                 nv_connector->type = DCB_CONNECTOR_eDP;
1334                 } else
1335                 if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1336                         if (encoders & (1 << DCB_OUTPUT_ANALOG))
1337                                 nv_connector->type = DCB_CONNECTOR_DVI_I;
1338                         else
1339                                 nv_connector->type = DCB_CONNECTOR_DVI_D;
1340                 } else
1341                 if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1342                         nv_connector->type = DCB_CONNECTOR_VGA;
1343                 } else
1344                 if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1345                         nv_connector->type = DCB_CONNECTOR_LVDS;
1346                 } else
1347                 if (encoders & (1 << DCB_OUTPUT_TV)) {
1348                         nv_connector->type = DCB_CONNECTOR_TV_0;
1349                 }
1350         }
1351
1352         switch ((type = drm_conntype_from_dcb(nv_connector->type))) {
1353         case DRM_MODE_CONNECTOR_LVDS:
1354                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1355                 if (ret) {
1356                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1357                         kfree(nv_connector);
1358                         return ERR_PTR(ret);
1359                 }
1360
1361                 funcs = &nouveau_connector_funcs_lvds;
1362                 break;
1363         case DRM_MODE_CONNECTOR_DisplayPort:
1364         case DRM_MODE_CONNECTOR_eDP:
1365                 nv_connector->aux.dev = connector->kdev;
1366                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1367                 snprintf(aux_name, sizeof(aux_name), "sor-%04x-%04x",
1368                          dcbe->hasht, dcbe->hashm);
1369                 nv_connector->aux.name = kstrdup(aux_name, GFP_KERNEL);
1370                 ret = drm_dp_aux_register(&nv_connector->aux);
1371                 if (ret) {
1372                         NV_ERROR(drm, "failed to register aux channel\n");
1373                         kfree(nv_connector);
1374                         return ERR_PTR(ret);
1375                 }
1376                 funcs = &nouveau_connector_funcs;
1377                 break;
1378         default:
1379                 funcs = &nouveau_connector_funcs;
1380                 break;
1381         }
1382
1383         /* HDMI 3D support */
1384         if ((disp->disp.object.oclass >= G82_DISP)
1385             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1386                 || (type == DRM_MODE_CONNECTOR_eDP)
1387                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1388                 connector->stereo_allowed = true;
1389
1390         /* defaults, will get overridden in detect() */
1391         connector->interlace_allowed = false;
1392         connector->doublescan_allowed = false;
1393
1394         drm_connector_init(dev, connector, funcs, type);
1395         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1396
1397         connector->funcs->reset(connector);
1398         nouveau_conn_attach_properties(connector);
1399
1400         /* Default scaling mode */
1401         switch (nv_connector->type) {
1402         case DCB_CONNECTOR_LVDS:
1403         case DCB_CONNECTOR_LVDS_SPWG:
1404         case DCB_CONNECTOR_eDP:
1405                 /* see note in nouveau_connector_set_property() */
1406                 if (disp->disp.object.oclass < NV50_DISP) {
1407                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1408                         break;
1409                 }
1410                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1411                 break;
1412         default:
1413                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1414                 break;
1415         }
1416
1417         /* dithering properties */
1418         switch (nv_connector->type) {
1419         case DCB_CONNECTOR_TV_0:
1420         case DCB_CONNECTOR_TV_1:
1421         case DCB_CONNECTOR_TV_3:
1422         case DCB_CONNECTOR_VGA:
1423                 break;
1424         default:
1425                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1426                 break;
1427         }
1428
1429         switch (type) {
1430         case DRM_MODE_CONNECTOR_DisplayPort:
1431         case DRM_MODE_CONNECTOR_eDP:
1432                 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1433                 break;
1434         }
1435
1436         ret = nvif_notify_init(&disp->disp.object, nouveau_connector_hotplug,
1437                                true, NV04_DISP_NTFY_CONN,
1438                                &(struct nvif_notify_conn_req_v0) {
1439                                 .mask = NVIF_NOTIFY_CONN_V0_ANY,
1440                                 .conn = index,
1441                                },
1442                                sizeof(struct nvif_notify_conn_req_v0),
1443                                sizeof(struct nvif_notify_conn_rep_v0),
1444                                &nv_connector->hpd);
1445         if (ret)
1446                 connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1447         else
1448                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1449
1450         drm_connector_register(connector);
1451         return connector;
1452 }