drivers/gpu/drm/nouveau/nouveau_connector.c

   1 /*
   2  * Copyright (C) 2008 Maarten Maathuis.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <acpi/button.h>
  28
  29 #include <linux/pm_runtime.h>
  30 #include <linux/vga_switcheroo.h>
  31
  32 #include <drm/drm_atomic_helper.h>
  33 #include <drm/drm_edid.h>
  34 #include <drm/drm_crtc_helper.h>
  35 #include <drm/drm_probe_helper.h>
  36 #include <drm/drm_atomic.h>
  37
  38 #include "nouveau_reg.h"
  39 #include "nouveau_drv.h"
  40 #include "dispnv04/hw.h"
  41 #include "dispnv50/disp.h"
  42 #include "nouveau_acpi.h"
  43
  44 #include "nouveau_display.h"
  45 #include "nouveau_connector.h"
  46 #include "nouveau_encoder.h"
  47 #include "nouveau_crtc.h"
  48
  49 #include <nvif/class.h>
  50 #include <nvif/if0011.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                 if (helper->mode_valid(connector, mode) != MODE_OK ||
  63                     (mode->flags & DRM_MODE_FLAG_INTERLACE))
  64                         continue;
  65
  66                 /* Use preferred mode if there is one.. */
  67                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
  68                         NV_DEBUG(drm, "native mode from preferred\n");
  69                         return drm_mode_duplicate(dev, mode);
  70                 }
  71
  72                 /* Otherwise, take the resolution with the largest width, then
  73                  * height, then vertical refresh
  74                  */
  75                 if (mode->hdisplay < high_w)
  76                         continue;
  77
  78                 if (mode->hdisplay == high_w && mode->vdisplay < high_h)
  79                         continue;
  80
  81                 if (mode->hdisplay == high_w && mode->vdisplay == high_h &&
  82                     drm_mode_vrefresh(mode) < high_v)
  83                         continue;
  84
  85                 high_w = mode->hdisplay;
  86                 high_h = mode->vdisplay;
  87                 high_v = drm_mode_vrefresh(mode);
  88                 largest = mode;
  89         }
  90
  91         NV_DEBUG(drm, "native mode from largest: %dx%d@%d\n",
  92                       high_w, high_h, high_v);
  93         return largest ? drm_mode_duplicate(dev, largest) : NULL;
  94 }
  95
  96 int
  97 nouveau_conn_atomic_get_property(struct drm_connector *connector,
  98                                  const struct drm_connector_state *state,
  99                                  struct drm_property *property, u64 *val)
 100 {
 101         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 102         struct nouveau_display *disp = nouveau_display(connector->dev);
 103         struct drm_device *dev = connector->dev;
 104
 105         if (property == dev->mode_config.scaling_mode_property)
 106                 *val = asyc->scaler.mode;
 107         else if (property == disp->underscan_property)
 108                 *val = asyc->scaler.underscan.mode;
 109         else if (property == disp->underscan_hborder_property)
 110                 *val = asyc->scaler.underscan.hborder;
 111         else if (property == disp->underscan_vborder_property)
 112                 *val = asyc->scaler.underscan.vborder;
 113         else if (property == disp->dithering_mode)
 114                 *val = asyc->dither.mode;
 115         else if (property == disp->dithering_depth)
 116                 *val = asyc->dither.depth;
 117         else if (property == disp->vibrant_hue_property)
 118                 *val = asyc->procamp.vibrant_hue;
 119         else if (property == disp->color_vibrance_property)
 120                 *val = asyc->procamp.color_vibrance;
 121         else
 122                 return -EINVAL;
 123
 124         return 0;
 125 }
 126
 127 int
 128 nouveau_conn_atomic_set_property(struct drm_connector *connector,
 129                                  struct drm_connector_state *state,
 130                                  struct drm_property *property, u64 val)
 131 {
 132         struct drm_device *dev = connector->dev;
 133         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 134         struct nouveau_display *disp = nouveau_display(dev);
 135
 136         if (property == dev->mode_config.scaling_mode_property) {
 137                 switch (val) {
 138                 case DRM_MODE_SCALE_NONE:
 139                         /* We allow 'None' for EDID modes, even on a fixed
 140                          * panel (some exist with support for lower refresh
 141                          * rates, which people might want to use for power-
 142                          * saving purposes).
 143                          *
 144                          * Non-EDID modes will force the use of GPU scaling
 145                          * to the native mode regardless of this setting.
 146                          */
 147                         switch (connector->connector_type) {
 148                         case DRM_MODE_CONNECTOR_LVDS:
 149                         case DRM_MODE_CONNECTOR_eDP:
 150                                 /* ... except prior to G80, where the code
 151                                  * doesn't support such things.
 152                                  */
 153                                 if (disp->disp.object.oclass < NV50_DISP)
 154                                         return -EINVAL;
 155                                 break;
 156                         default:
 157                                 break;
 158                         }
 159                         break;
 160                 case DRM_MODE_SCALE_FULLSCREEN:
 161                 case DRM_MODE_SCALE_CENTER:
 162                 case DRM_MODE_SCALE_ASPECT:
 163                         break;
 164                 default:
 165                         return -EINVAL;
 166                 }
 167
 168                 if (asyc->scaler.mode != val) {
 169                         asyc->scaler.mode = val;
 170                         asyc->set.scaler = true;
 171                 }
 172         } else
 173         if (property == disp->underscan_property) {
 174                 if (asyc->scaler.underscan.mode != val) {
 175                         asyc->scaler.underscan.mode = val;
 176                         asyc->set.scaler = true;
 177                 }
 178         } else
 179         if (property == disp->underscan_hborder_property) {
 180                 if (asyc->scaler.underscan.hborder != val) {
 181                         asyc->scaler.underscan.hborder = val;
 182                         asyc->set.scaler = true;
 183                 }
 184         } else
 185         if (property == disp->underscan_vborder_property) {
 186                 if (asyc->scaler.underscan.vborder != val) {
 187                         asyc->scaler.underscan.vborder = val;
 188                         asyc->set.scaler = true;
 189                 }
 190         } else
 191         if (property == disp->dithering_mode) {
 192                 if (asyc->dither.mode != val) {
 193                         asyc->dither.mode = val;
 194                         asyc->set.dither = true;
 195                 }
 196         } else
 197         if (property == disp->dithering_depth) {
 198                 if (asyc->dither.mode != val) {
 199                         asyc->dither.depth = val;
 200                         asyc->set.dither = true;
 201                 }
 202         } else
 203         if (property == disp->vibrant_hue_property) {
 204                 if (asyc->procamp.vibrant_hue != val) {
 205                         asyc->procamp.vibrant_hue = val;
 206                         asyc->set.procamp = true;
 207                 }
 208         } else
 209         if (property == disp->color_vibrance_property) {
 210                 if (asyc->procamp.color_vibrance != val) {
 211                         asyc->procamp.color_vibrance = val;
 212                         asyc->set.procamp = true;
 213                 }
 214         } else {
 215                 return -EINVAL;
 216         }
 217
 218         return 0;
 219 }
 220
 221 void
 222 nouveau_conn_atomic_destroy_state(struct drm_connector *connector,
 223                                   struct drm_connector_state *state)
 224 {
 225         struct nouveau_conn_atom *asyc = nouveau_conn_atom(state);
 226         __drm_atomic_helper_connector_destroy_state(&asyc->state);
 227         kfree(asyc);
 228 }
 229
 230 struct drm_connector_state *
 231 nouveau_conn_atomic_duplicate_state(struct drm_connector *connector)
 232 {
 233         struct nouveau_conn_atom *armc = nouveau_conn_atom(connector->state);
 234         struct nouveau_conn_atom *asyc;
 235         if (!(asyc = kmalloc(sizeof(*asyc), GFP_KERNEL)))
 236                 return NULL;
 237         __drm_atomic_helper_connector_duplicate_state(connector, &asyc->state);
 238         asyc->dither = armc->dither;
 239         asyc->scaler = armc->scaler;
 240         asyc->procamp = armc->procamp;
 241         asyc->set.mask = 0;
 242         return &asyc->state;
 243 }
 244
 245 void
 246 nouveau_conn_reset(struct drm_connector *connector)
 247 {
 248         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 249         struct nouveau_conn_atom *asyc;
 250
 251         if (drm_drv_uses_atomic_modeset(connector->dev)) {
 252                 if (WARN_ON(!(asyc = kzalloc(sizeof(*asyc), GFP_KERNEL))))
 253                         return;
 254
 255                 if (connector->state)
 256                         nouveau_conn_atomic_destroy_state(connector,
 257                                                           connector->state);
 258
 259                 __drm_atomic_helper_connector_reset(connector, &asyc->state);
 260         } else {
 261                 asyc = &nv_connector->properties_state;
 262         }
 263
 264         asyc->dither.mode = DITHERING_MODE_AUTO;
 265         asyc->dither.depth = DITHERING_DEPTH_AUTO;
 266         asyc->scaler.mode = DRM_MODE_SCALE_NONE;
 267         asyc->scaler.underscan.mode = UNDERSCAN_OFF;
 268         asyc->procamp.color_vibrance = 150;
 269         asyc->procamp.vibrant_hue = 90;
 270
 271         if (nouveau_display(connector->dev)->disp.object.oclass < NV50_DISP) {
 272                 switch (connector->connector_type) {
 273                 case DRM_MODE_CONNECTOR_LVDS:
 274                         /* See note in nouveau_conn_atomic_set_property(). */
 275                         asyc->scaler.mode = DRM_MODE_SCALE_FULLSCREEN;
 276                         break;
 277                 default:
 278                         break;
 279                 }
 280         }
 281 }
 282
 283 void
 284 nouveau_conn_attach_properties(struct drm_connector *connector)
 285 {
 286         struct drm_device *dev = connector->dev;
 287         struct nouveau_display *disp = nouveau_display(dev);
 288         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 289         struct nouveau_conn_atom *armc;
 290
 291         if (drm_drv_uses_atomic_modeset(connector->dev))
 292                 armc = nouveau_conn_atom(connector->state);
 293         else
 294                 armc = &nv_connector->properties_state;
 295
 296         /* Init DVI-I specific properties. */
 297         if (connector->connector_type == DRM_MODE_CONNECTOR_DVII)
 298                 drm_object_attach_property(&connector->base, dev->mode_config.
 299                                            dvi_i_subconnector_property, 0);
 300
 301         /* Add overscan compensation options to digital outputs. */
 302         if (disp->underscan_property &&
 303             (connector->connector_type == DRM_MODE_CONNECTOR_DVID ||
 304              connector->connector_type == DRM_MODE_CONNECTOR_DVII ||
 305              connector->connector_type == DRM_MODE_CONNECTOR_HDMIA ||
 306              connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)) {
 307                 drm_object_attach_property(&connector->base,
 308                                            disp->underscan_property,
 309                                            UNDERSCAN_OFF);
 310                 drm_object_attach_property(&connector->base,
 311                                            disp->underscan_hborder_property, 0);
 312                 drm_object_attach_property(&connector->base,
 313                                            disp->underscan_vborder_property, 0);
 314         }
 315
 316         /* Add hue and saturation options. */
 317         if (disp->vibrant_hue_property)
 318                 drm_object_attach_property(&connector->base,
 319                                            disp->vibrant_hue_property,
 320                                            armc->procamp.vibrant_hue);
 321         if (disp->color_vibrance_property)
 322                 drm_object_attach_property(&connector->base,
 323                                            disp->color_vibrance_property,
 324                                            armc->procamp.color_vibrance);
 325
 326         /* Scaling mode property. */
 327         switch (connector->connector_type) {
 328         case DRM_MODE_CONNECTOR_TV:
 329                 break;
 330         case DRM_MODE_CONNECTOR_VGA:
 331                 if (disp->disp.object.oclass < NV50_DISP)
 332                         break; /* Can only scale on DFPs. */
 333                 fallthrough;
 334         default:
 335                 drm_object_attach_property(&connector->base, dev->mode_config.
 336                                            scaling_mode_property,
 337                                            armc->scaler.mode);
 338                 break;
 339         }
 340
 341         /* Dithering properties. */
 342         switch (connector->connector_type) {
 343         case DRM_MODE_CONNECTOR_TV:
 344         case DRM_MODE_CONNECTOR_VGA:
 345                 break;
 346         default:
 347                 if (disp->dithering_mode) {
 348                         drm_object_attach_property(&connector->base,
 349                                                    disp->dithering_mode,
 350                                                    armc->dither.mode);
 351                 }
 352                 if (disp->dithering_depth) {
 353                         drm_object_attach_property(&connector->base,
 354                                                    disp->dithering_depth,
 355                                                    armc->dither.depth);
 356                 }
 357                 break;
 358         }
 359 }
 360
 361 MODULE_PARM_DESC(tv_disable, "Disable TV-out detection");
 362 int nouveau_tv_disable = 0;
 363 module_param_named(tv_disable, nouveau_tv_disable, int, 0400);
 364
 365 MODULE_PARM_DESC(ignorelid, "Ignore ACPI lid status");
 366 int nouveau_ignorelid = 0;
 367 module_param_named(ignorelid, nouveau_ignorelid, int, 0400);
 368
 369 MODULE_PARM_DESC(duallink, "Allow dual-link TMDS (default: enabled)");
 370 int nouveau_duallink = 1;
 371 module_param_named(duallink, nouveau_duallink, int, 0400);
 372
 373 MODULE_PARM_DESC(hdmimhz, "Force a maximum HDMI pixel clock (in MHz)");
 374 int nouveau_hdmimhz = 0;
 375 module_param_named(hdmimhz, nouveau_hdmimhz, int, 0400);
 376
 377 struct nouveau_encoder *
 378 find_encoder(struct drm_connector *connector, int type)
 379 {
 380         struct nouveau_encoder *nv_encoder;
 381         struct drm_encoder *enc;
 382
 383         drm_connector_for_each_possible_encoder(connector, enc) {
 384                 nv_encoder = nouveau_encoder(enc);
 385
 386                 if (type == DCB_OUTPUT_ANY ||
 387                     (nv_encoder->dcb && nv_encoder->dcb->type == type))
 388                         return nv_encoder;
 389         }
 390
 391         return NULL;
 392 }
 393
 394 static void
 395 nouveau_connector_destroy(struct drm_connector *connector)
 396 {
 397         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 398         nvif_event_dtor(&nv_connector->irq);
 399         nvif_event_dtor(&nv_connector->hpd);
 400         kfree(nv_connector->edid);
 401         drm_connector_unregister(connector);
 402         drm_connector_cleanup(connector);
 403         if (nv_connector->aux.transfer)
 404                 drm_dp_cec_unregister_connector(&nv_connector->aux);
 405         nvif_conn_dtor(&nv_connector->conn);
 406         kfree(connector);
 407 }
 408
 409 static struct nouveau_encoder *
 410 nouveau_connector_ddc_detect(struct drm_connector *connector)
 411 {
 412         struct drm_device *dev = connector->dev;
 413         struct pci_dev *pdev = to_pci_dev(dev->dev);
 414         struct nouveau_connector *conn = nouveau_connector(connector);
 415         struct nouveau_encoder *nv_encoder = NULL, *found = NULL;
 416         struct drm_encoder *encoder;
 417         int ret;
 418         bool switcheroo_ddc = false;
 419
 420         drm_connector_for_each_possible_encoder(connector, encoder) {
 421                 nv_encoder = nouveau_encoder(encoder);
 422
 423                 if (nvif_object_constructed(&nv_encoder->outp.object)) {
 424                         enum nvif_outp_detect_status status;
 425
 426                         if (nv_encoder->dcb->type == DCB_OUTPUT_DP) {
 427                                 ret = nouveau_dp_detect(conn, nv_encoder);
 428                                 if (ret == NOUVEAU_DP_MST)
 429                                         return NULL;
 430                                 if (ret != NOUVEAU_DP_SST)
 431                                         continue;
 432
 433                                 return nv_encoder;
 434                         } else {
 435                                 status = nvif_outp_detect(&nv_encoder->outp);
 436                                 switch (status) {
 437                                 case PRESENT:
 438                                         return nv_encoder;
 439                                 case NOT_PRESENT:
 440                                         continue;
 441                                 case UNKNOWN:
 442                                         break;
 443                                 default:
 444                                         WARN_ON(1);
 445                                         break;
 446                                 }
 447                         }
 448                 }
 449
 450                 if (!nv_encoder->i2c)
 451                         continue;
 452
 453                 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS) {
 454                         switcheroo_ddc = !!(vga_switcheroo_handler_flags() &
 455                                             VGA_SWITCHEROO_CAN_SWITCH_DDC);
 456                 }
 457
 458                 if (switcheroo_ddc)
 459                         vga_switcheroo_lock_ddc(pdev);
 460                 if (nvkm_probe_i2c(nv_encoder->i2c, 0x50))
 461                         found = nv_encoder;
 462                 if (switcheroo_ddc)
 463                         vga_switcheroo_unlock_ddc(pdev);
 464
 465                 if (found)
 466                         break;
 467         }
 468
 469         return found;
 470 }
 471
 472 static struct nouveau_encoder *
 473 nouveau_connector_of_detect(struct drm_connector *connector)
 474 {
 475 #ifdef __powerpc__
 476         struct drm_device *dev = connector->dev;
 477         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 478         struct nouveau_encoder *nv_encoder;
 479         struct pci_dev *pdev = to_pci_dev(dev->dev);
 480         struct device_node *cn, *dn = pci_device_to_OF_node(pdev);
 481
 482         if (!dn ||
 483             !((nv_encoder = find_encoder(connector, DCB_OUTPUT_TMDS)) ||
 484               (nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG))))
 485                 return NULL;
 486
 487         for_each_child_of_node(dn, cn) {
 488                 const char *name = of_get_property(cn, "name", NULL);
 489                 const void *edid = of_get_property(cn, "EDID", NULL);
 490                 int idx = name ? name[strlen(name) - 1] - 'A' : 0;
 491
 492                 if (nv_encoder->dcb->i2c_index == idx && edid) {
 493                         nv_connector->edid =
 494                                 kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 495                         of_node_put(cn);
 496                         return nv_encoder;
 497                 }
 498         }
 499 #endif
 500         return NULL;
 501 }
 502
 503 static void
 504 nouveau_connector_set_encoder(struct drm_connector *connector,
 505                               struct nouveau_encoder *nv_encoder)
 506 {
 507         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 508         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 509         struct drm_device *dev = connector->dev;
 510         struct pci_dev *pdev = to_pci_dev(dev->dev);
 511
 512         if (nv_connector->detected_encoder == nv_encoder)
 513                 return;
 514         nv_connector->detected_encoder = nv_encoder;
 515
 516         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 517                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
 518                         connector->interlace_allowed =
 519                                 nv_encoder->caps.dp_interlace;
 520                 else
 521                         connector->interlace_allowed =
 522                                 drm->client.device.info.family < NV_DEVICE_INFO_V0_VOLTA;
 523                 connector->doublescan_allowed = true;
 524         } else
 525         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 526             nv_encoder->dcb->type == DCB_OUTPUT_TMDS) {
 527                 connector->doublescan_allowed = false;
 528                 connector->interlace_allowed = false;
 529         } else {
 530                 connector->doublescan_allowed = true;
 531                 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_KELVIN ||
 532                     (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
 533                      (pdev->device & 0x0ff0) != 0x0100 &&
 534                      (pdev->device & 0x0ff0) != 0x0150))
 535                         /* HW is broken */
 536                         connector->interlace_allowed = false;
 537                 else
 538                         connector->interlace_allowed = true;
 539         }
 540
 541         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 542                 drm_object_property_set_value(&connector->base,
 543                         dev->mode_config.dvi_i_subconnector_property,
 544                         nv_encoder->dcb->type == DCB_OUTPUT_TMDS ?
 545                         DRM_MODE_SUBCONNECTOR_DVID :
 546                         DRM_MODE_SUBCONNECTOR_DVIA);
 547         }
 548 }
 549
 550 static void
 551 nouveau_connector_set_edid(struct nouveau_connector *nv_connector,
 552                            struct edid *edid)
 553 {
 554         if (nv_connector->edid != edid) {
 555                 struct edid *old_edid = nv_connector->edid;
 556
 557                 drm_connector_update_edid_property(&nv_connector->base, edid);
 558                 kfree(old_edid);
 559                 nv_connector->edid = edid;
 560         }
 561 }
 562
 563 static enum drm_connector_status
 564 nouveau_connector_detect(struct drm_connector *connector, bool force)
 565 {
 566         struct drm_device *dev = connector->dev;
 567         struct nouveau_drm *drm = nouveau_drm(dev);
 568         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 569         struct nouveau_encoder *nv_encoder = NULL;
 570         struct nouveau_encoder *nv_partner;
 571         int type;
 572         int ret;
 573         enum drm_connector_status conn_status = connector_status_disconnected;
 574
 575         /* Outputs are only polled while runtime active, so resuming the
 576          * device here is unnecessary (and would deadlock upon runtime suspend
 577          * because it waits for polling to finish). We do however, want to
 578          * prevent the autosuspend timer from elapsing during this operation
 579          * if possible.
 580          */
 581         if (drm_kms_helper_is_poll_worker()) {
 582                 pm_runtime_get_noresume(dev->dev);
 583         } else {
 584                 ret = pm_runtime_get_sync(dev->dev);
 585                 if (ret < 0 && ret != -EACCES) {
 586                         pm_runtime_put_autosuspend(dev->dev);
 587                         nouveau_connector_set_edid(nv_connector, NULL);
 588                         return conn_status;
 589                 }
 590         }
 591
 592         nv_encoder = nouveau_connector_ddc_detect(connector);
 593         if (nv_encoder) {
 594                 struct edid *new_edid = NULL;
 595
 596                 if (nv_encoder->i2c) {
 597                         if ((vga_switcheroo_handler_flags() & VGA_SWITCHEROO_CAN_SWITCH_DDC) &&
 598                             nv_connector->type == DCB_CONNECTOR_LVDS)
 599                                 new_edid = drm_get_edid_switcheroo(connector, nv_encoder->i2c);
 600                         else
 601                                 new_edid = drm_get_edid(connector, nv_encoder->i2c);
 602                 } else {
 603                         ret = nvif_outp_edid_get(&nv_encoder->outp, (u8 **)&new_edid);
 604                         if (ret < 0)
 605                                 return connector_status_disconnected;
 606                 }
 607
 608                 nouveau_connector_set_edid(nv_connector, new_edid);
 609                 if (!nv_connector->edid) {
 610                         NV_ERROR(drm, "DDC responded, but no EDID for %s\n",
 611                                  connector->name);
 612                         goto detect_analog;
 613                 }
 614
 615                 /* Override encoder type for DVI-I based on whether EDID
 616                  * says the display is digital or analog, both use the
 617                  * same i2c channel so the value returned from ddc_detect
 618                  * isn't necessarily correct.
 619                  */
 620                 nv_partner = NULL;
 621                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 622                         nv_partner = find_encoder(connector, DCB_OUTPUT_ANALOG);
 623                 if (nv_encoder->dcb->type == DCB_OUTPUT_ANALOG)
 624                         nv_partner = find_encoder(connector, DCB_OUTPUT_TMDS);
 625
 626                 if (nv_partner && ((nv_encoder->dcb->type == DCB_OUTPUT_ANALOG &&
 627                                     nv_partner->dcb->type == DCB_OUTPUT_TMDS) ||
 628                                    (nv_encoder->dcb->type == DCB_OUTPUT_TMDS &&
 629                                     nv_partner->dcb->type == DCB_OUTPUT_ANALOG))) {
 630                         if (nv_connector->edid->input & DRM_EDID_INPUT_DIGITAL)
 631                                 type = DCB_OUTPUT_TMDS;
 632                         else
 633                                 type = DCB_OUTPUT_ANALOG;
 634
 635                         nv_encoder = find_encoder(connector, type);
 636                 }
 637
 638                 nouveau_connector_set_encoder(connector, nv_encoder);
 639                 conn_status = connector_status_connected;
 640
 641                 if (nv_encoder->dcb->type == DCB_OUTPUT_DP)
 642                         drm_dp_cec_set_edid(&nv_connector->aux, nv_connector->edid);
 643
 644                 goto out;
 645         } else {
 646                 nouveau_connector_set_edid(nv_connector, NULL);
 647         }
 648
 649         nv_encoder = nouveau_connector_of_detect(connector);
 650         if (nv_encoder) {
 651                 nouveau_connector_set_encoder(connector, nv_encoder);
 652                 conn_status = connector_status_connected;
 653                 goto out;
 654         }
 655
 656 detect_analog:
 657         nv_encoder = find_encoder(connector, DCB_OUTPUT_ANALOG);
 658         if (!nv_encoder && !nouveau_tv_disable)
 659                 nv_encoder = find_encoder(connector, DCB_OUTPUT_TV);
 660         if (nv_encoder && force) {
 661                 struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 662                 const struct drm_encoder_helper_funcs *helper =
 663                                                 encoder->helper_private;
 664
 665                 if (helper->detect(encoder, connector) ==
 666                                                 connector_status_connected) {
 667                         nouveau_connector_set_encoder(connector, nv_encoder);
 668                         conn_status = connector_status_connected;
 669                         goto out;
 670                 }
 671         }
 672
 673  out:
 674         if (!nv_connector->edid)
 675                 drm_dp_cec_unset_edid(&nv_connector->aux);
 676
 677         pm_runtime_mark_last_busy(dev->dev);
 678         pm_runtime_put_autosuspend(dev->dev);
 679
 680         return conn_status;
 681 }
 682
 683 static enum drm_connector_status
 684 nouveau_connector_detect_lvds(struct drm_connector *connector, bool force)
 685 {
 686         struct drm_device *dev = connector->dev;
 687         struct nouveau_drm *drm = nouveau_drm(dev);
 688         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 689         struct nouveau_encoder *nv_encoder = NULL;
 690         struct edid *edid = NULL;
 691         enum drm_connector_status status = connector_status_disconnected;
 692
 693         nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 694         if (!nv_encoder)
 695                 goto out;
 696
 697         /* Try retrieving EDID via DDC */
 698         if (!drm->vbios.fp_no_ddc) {
 699                 status = nouveau_connector_detect(connector, force);
 700                 if (status == connector_status_connected) {
 701                         edid = nv_connector->edid;
 702                         goto out;
 703                 }
 704         }
 705
 706         /* On some laptops (Sony, i'm looking at you) there appears to
 707          * be no direct way of accessing the panel's EDID.  The only
 708          * option available to us appears to be to ask ACPI for help..
 709          *
 710          * It's important this check's before trying straps, one of the
 711          * said manufacturer's laptops are configured in such a way
 712          * the nouveau decides an entry in the VBIOS FP mode table is
 713          * valid - it's not (rh#613284)
 714          */
 715         if (nv_encoder->dcb->lvdsconf.use_acpi_for_edid) {
 716                 edid = nouveau_acpi_edid(dev, connector);
 717                 if (edid) {
 718                         status = connector_status_connected;
 719                         goto out;
 720                 }
 721         }
 722
 723         /* If no EDID found above, and the VBIOS indicates a hardcoded
 724          * modeline is avalilable for the panel, set it as the panel's
 725          * native mode and exit.
 726          */
 727         if (nouveau_bios_fp_mode(dev, NULL) && (drm->vbios.fp_no_ddc ||
 728             nv_encoder->dcb->lvdsconf.use_straps_for_mode)) {
 729                 status = connector_status_connected;
 730                 goto out;
 731         }
 732
 733         /* Still nothing, some VBIOS images have a hardcoded EDID block
 734          * stored for the panel stored in them.
 735          */
 736         if (!drm->vbios.fp_no_ddc) {
 737                 edid = (struct edid *)nouveau_bios_embedded_edid(dev);
 738                 if (edid) {
 739                         edid = kmemdup(edid, EDID_LENGTH, GFP_KERNEL);
 740                         if (edid)
 741                                 status = connector_status_connected;
 742                 }
 743         }
 744
 745 out:
 746 #if defined(CONFIG_ACPI_BUTTON) || \
 747         (defined(CONFIG_ACPI_BUTTON_MODULE) && defined(MODULE))
 748         if (status == connector_status_connected &&
 749             !nouveau_ignorelid && !acpi_lid_open())
 750                 status = connector_status_unknown;
 751 #endif
 752
 753         nouveau_connector_set_edid(nv_connector, edid);
 754         if (nv_encoder)
 755                 nouveau_connector_set_encoder(connector, nv_encoder);
 756         return status;
 757 }
 758
 759 static void
 760 nouveau_connector_force(struct drm_connector *connector)
 761 {
 762         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 763         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 764         struct nouveau_encoder *nv_encoder;
 765         int type;
 766
 767         if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 768                 if (connector->force == DRM_FORCE_ON_DIGITAL)
 769                         type = DCB_OUTPUT_TMDS;
 770                 else
 771                         type = DCB_OUTPUT_ANALOG;
 772         } else
 773                 type = DCB_OUTPUT_ANY;
 774
 775         nv_encoder = find_encoder(connector, type);
 776         if (!nv_encoder) {
 777                 NV_ERROR(drm, "can't find encoder to force %s on!\n",
 778                          connector->name);
 779                 connector->status = connector_status_disconnected;
 780                 return;
 781         }
 782
 783         nouveau_connector_set_encoder(connector, nv_encoder);
 784 }
 785
 786 static int
 787 nouveau_connector_set_property(struct drm_connector *connector,
 788                                struct drm_property *property, uint64_t value)
 789 {
 790         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 791         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 792         struct nouveau_conn_atom *asyc = &nv_connector->properties_state;
 793         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 794         int ret;
 795
 796         ret = connector->funcs->atomic_set_property(&nv_connector->base,
 797                                                     &asyc->state,
 798                                                     property, value);
 799         if (ret) {
 800                 if (nv_encoder && nv_encoder->dcb->type == DCB_OUTPUT_TV)
 801                         return get_slave_funcs(encoder)->set_property(
 802                                 encoder, connector, property, value);
 803                 return ret;
 804         }
 805
 806         nv_connector->scaling_mode = asyc->scaler.mode;
 807         nv_connector->dithering_mode = asyc->dither.mode;
 808
 809         if (connector->encoder && connector->encoder->crtc) {
 810                 ret = drm_crtc_helper_set_mode(connector->encoder->crtc,
 811                                               &connector->encoder->crtc->mode,
 812                                                connector->encoder->crtc->x,
 813                                                connector->encoder->crtc->y,
 814                                                NULL);
 815                 if (!ret)
 816                         return -EINVAL;
 817         }
 818
 819         return 0;
 820 }
 821
 822 struct moderec {
 823         int hdisplay;
 824         int vdisplay;
 825 };
 826
 827 static struct moderec scaler_modes[] = {
 828         { 1920, 1200 },
 829         { 1920, 1080 },
 830         { 1680, 1050 },
 831         { 1600, 1200 },
 832         { 1400, 1050 },
 833         { 1280, 1024 },
 834         { 1280, 960 },
 835         { 1152, 864 },
 836         { 1024, 768 },
 837         { 800, 600 },
 838         { 720, 400 },
 839         { 640, 480 },
 840         { 640, 400 },
 841         { 640, 350 },
 842         {}
 843 };
 844
 845 static int
 846 nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 847 {
 848         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 849         struct drm_display_mode *native = nv_connector->native_mode, *m;
 850         struct drm_device *dev = connector->dev;
 851         struct moderec *mode = &scaler_modes[0];
 852         int modes = 0;
 853
 854         if (!native)
 855                 return 0;
 856
 857         while (mode->hdisplay) {
 858                 if (mode->hdisplay <= native->hdisplay &&
 859                     mode->vdisplay <= native->vdisplay &&
 860                     (mode->hdisplay != native->hdisplay ||
 861                      mode->vdisplay != native->vdisplay)) {
 862                         m = drm_cvt_mode(dev, mode->hdisplay, mode->vdisplay,
 863                                          drm_mode_vrefresh(native), false,
 864                                          false, false);
 865                         if (!m)
 866                                 continue;
 867
 868                         drm_mode_probed_add(connector, m);
 869                         modes++;
 870                 }
 871
 872                 mode++;
 873         }
 874
 875         return modes;
 876 }
 877
 878 static void
 879 nouveau_connector_detect_depth(struct drm_connector *connector)
 880 {
 881         struct nouveau_drm *drm = nouveau_drm(connector->dev);
 882         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 883         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 884         struct nvbios *bios = &drm->vbios;
 885         struct drm_display_mode *mode = nv_connector->native_mode;
 886         bool duallink;
 887
 888         /* if the edid is feeling nice enough to provide this info, use it */
 889         if (nv_connector->edid && connector->display_info.bpc)
 890                 return;
 891
 892         /* EDID 1.4 is *supposed* to be supported on eDP, but, Apple... */
 893         if (nv_connector->type == DCB_CONNECTOR_eDP) {
 894                 connector->display_info.bpc = 6;
 895                 return;
 896         }
 897
 898         /* we're out of options unless we're LVDS, default to 8bpc */
 899         if (nv_encoder->dcb->type != DCB_OUTPUT_LVDS) {
 900                 connector->display_info.bpc = 8;
 901                 return;
 902         }
 903
 904         connector->display_info.bpc = 6;
 905
 906         /* LVDS: panel straps */
 907         if (bios->fp_no_ddc) {
 908                 if (bios->fp.if_is_24bit)
 909                         connector->display_info.bpc = 8;
 910                 return;
 911         }
 912
 913         /* LVDS: DDC panel, need to first determine the number of links to
 914          * know which if_is_24bit flag to check...
 915          */
 916         if (nv_connector->edid &&
 917             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
 918                 duallink = ((u8 *)nv_connector->edid)[121] == 2;
 919         else
 920                 duallink = mode->clock >= bios->fp.duallink_transition_clk;
 921
 922         if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
 923             ( duallink && (bios->fp.strapless_is_24bit & 2)))
 924                 connector->display_info.bpc = 8;
 925 }
 926
 927 static int
 928 nouveau_connector_late_register(struct drm_connector *connector)
 929 {
 930         int ret;
 931
 932         ret = nouveau_backlight_init(connector);
 933         if (ret)
 934                 return ret;
 935
 936         if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
 937             connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
 938                 ret = drm_dp_aux_register(&nouveau_connector(connector)->aux);
 939                 if (ret)
 940                         goto backlight_fini;
 941         }
 942
 943         return 0;
 944 backlight_fini:
 945         nouveau_backlight_fini(connector);
 946         return ret;
 947 }
 948
 949 static void
 950 nouveau_connector_early_unregister(struct drm_connector *connector)
 951 {
 952         if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
 953             connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort)
 954                 drm_dp_aux_unregister(&nouveau_connector(connector)->aux);
 955
 956         nouveau_backlight_fini(connector);
 957 }
 958
 959 static int
 960 nouveau_connector_get_modes(struct drm_connector *connector)
 961 {
 962         struct drm_device *dev = connector->dev;
 963         struct nouveau_drm *drm = nouveau_drm(dev);
 964         struct nouveau_connector *nv_connector = nouveau_connector(connector);
 965         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 966         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 967         int ret = 0;
 968
 969         /* destroy the native mode, the attached monitor could have changed.
 970          */
 971         if (nv_connector->native_mode) {
 972                 drm_mode_destroy(dev, nv_connector->native_mode);
 973                 nv_connector->native_mode = NULL;
 974         }
 975
 976         if (nv_connector->edid)
 977                 ret = drm_add_edid_modes(connector, nv_connector->edid);
 978         else
 979         if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS &&
 980             (nv_encoder->dcb->lvdsconf.use_straps_for_mode ||
 981              drm->vbios.fp_no_ddc) && nouveau_bios_fp_mode(dev, NULL)) {
 982                 struct drm_display_mode mode;
 983
 984                 nouveau_bios_fp_mode(dev, &mode);
 985                 nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 986         }
 987
 988         /* Determine display colour depth for everything except LVDS now,
 989          * DP requires this before mode_valid() is called.
 990          */
 991         if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
 992                 nouveau_connector_detect_depth(connector);
 993
 994         /* Find the native mode if this is a digital panel, if we didn't
 995          * find any modes through DDC previously add the native mode to
 996          * the list of modes.
 997          */
 998         if (!nv_connector->native_mode)
 999                 nv_connector->native_mode = nouveau_conn_native_mode(connector);
1000         if (ret == 0 && nv_connector->native_mode) {
1001                 struct drm_display_mode *mode;
1002
1003                 mode = drm_mode_duplicate(dev, nv_connector->native_mode);
1004                 drm_mode_probed_add(connector, mode);
1005                 ret = 1;
1006         }
1007
1008         /* Determine LVDS colour depth, must happen after determining
1009          * "native" mode as some VBIOS tables require us to use the
1010          * pixel clock as part of the lookup...
1011          */
1012         if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS && nv_connector->native_mode)
1013                 nouveau_connector_detect_depth(connector);
1014
1015         if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
1016                 ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
1017
1018         if (nv_connector->type == DCB_CONNECTOR_LVDS ||
1019             nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
1020             nv_connector->type == DCB_CONNECTOR_eDP)
1021                 ret += nouveau_connector_scaler_modes_add(connector);
1022
1023         return ret;
1024 }
1025
1026 static unsigned
1027 get_tmds_link_bandwidth(struct drm_connector *connector)
1028 {
1029         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1030         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1031         struct nouveau_drm *drm = nouveau_drm(connector->dev);
1032         struct dcb_output *dcb = nv_connector->detected_encoder->dcb;
1033         struct drm_display_info *info = NULL;
1034         unsigned duallink_scale =
1035                 nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1;
1036
1037         if (drm_detect_hdmi_monitor(nv_connector->edid)) {
1038                 info = &nv_connector->base.display_info;
1039                 duallink_scale = 1;
1040         }
1041
1042         if (info) {
1043                 if (nouveau_hdmimhz > 0)
1044                         return nouveau_hdmimhz * 1000;
1045                 /* Note: these limits are conservative, some Fermi's
1046                  * can do 297 MHz. Unclear how this can be determined.
1047                  */
1048                 if (drm->client.device.info.chipset >= 0x120) {
1049                         const int max_tmds_clock =
1050                                 info->hdmi.scdc.scrambling.supported ?
1051                                 594000 : 340000;
1052                         return info->max_tmds_clock ?
1053                                 min(info->max_tmds_clock, max_tmds_clock) :
1054                                 max_tmds_clock;
1055                 }
1056                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KEPLER)
1057                         return 297000;
1058                 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_FERMI)
1059                         return 225000;
1060         }
1061
1062         if (dcb->location != DCB_LOC_ON_CHIP ||
1063             drm->client.device.info.chipset >= 0x46)
1064                 return 165000 * duallink_scale;
1065         else if (drm->client.device.info.chipset >= 0x40)
1066                 return 155000 * duallink_scale;
1067         else if (drm->client.device.info.chipset >= 0x18)
1068                 return 135000 * duallink_scale;
1069         else
1070                 return 112000 * duallink_scale;
1071 }
1072
1073 static enum drm_mode_status
1074 nouveau_connector_mode_valid(struct drm_connector *connector,
1075                              struct drm_display_mode *mode)
1076 {
1077         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1078         struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
1079         struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
1080         unsigned int min_clock = 25000, max_clock = min_clock, clock = mode->clock;
1081
1082         switch (nv_encoder->dcb->type) {
1083         case DCB_OUTPUT_LVDS:
1084                 if (nv_connector->native_mode &&
1085                     (mode->hdisplay > nv_connector->native_mode->hdisplay ||
1086                      mode->vdisplay > nv_connector->native_mode->vdisplay))
1087                         return MODE_PANEL;
1088
1089                 min_clock = 0;
1090                 max_clock = 400000;
1091                 break;
1092         case DCB_OUTPUT_TMDS:
1093                 max_clock = get_tmds_link_bandwidth(connector);
1094                 break;
1095         case DCB_OUTPUT_ANALOG:
1096                 max_clock = nv_encoder->dcb->crtconf.maxfreq;
1097                 if (!max_clock)
1098                         max_clock = 350000;
1099                 break;
1100         case DCB_OUTPUT_TV:
1101                 return get_slave_funcs(encoder)->mode_valid(encoder, mode);
1102         case DCB_OUTPUT_DP:
1103                 return nv50_dp_mode_valid(nv_encoder, mode, NULL);
1104         default:
1105                 BUG();
1106                 return MODE_BAD;
1107         }
1108
1109         if ((mode->flags & DRM_MODE_FLAG_3D_MASK) == DRM_MODE_FLAG_3D_FRAME_PACKING)
1110                 clock *= 2;
1111
1112         if (clock < min_clock)
1113                 return MODE_CLOCK_LOW;
1114         if (clock > max_clock)
1115                 return MODE_CLOCK_HIGH;
1116
1117         return MODE_OK;
1118 }
1119
1120 static struct drm_encoder *
1121 nouveau_connector_best_encoder(struct drm_connector *connector)
1122 {
1123         struct nouveau_connector *nv_connector = nouveau_connector(connector);
1124
1125         if (nv_connector->detected_encoder)
1126                 return to_drm_encoder(nv_connector->detected_encoder);
1127
1128         return NULL;
1129 }
1130
1131 static int
1132 nouveau_connector_atomic_check(struct drm_connector *connector, struct drm_atomic_state *state)
1133 {
1134         struct nouveau_connector *nv_conn = nouveau_connector(connector);
1135         struct drm_connector_state *conn_state =
1136                 drm_atomic_get_new_connector_state(state, connector);
1137
1138         if (!nv_conn->dp_encoder || !nv_conn->dp_encoder->dp.mstm)
1139                 return 0;
1140
1141         return drm_dp_mst_root_conn_atomic_check(conn_state, &nv_conn->dp_encoder->dp.mstm->mgr);
1142 }
1143
1144 static const struct drm_connector_helper_funcs
1145 nouveau_connector_helper_funcs = {
1146         .get_modes = nouveau_connector_get_modes,
1147         .mode_valid = nouveau_connector_mode_valid,
1148         .best_encoder = nouveau_connector_best_encoder,
1149         .atomic_check = nouveau_connector_atomic_check,
1150 };
1151
1152 static const struct drm_connector_funcs
1153 nouveau_connector_funcs = {
1154         .dpms = drm_helper_connector_dpms,
1155         .reset = nouveau_conn_reset,
1156         .detect = nouveau_connector_detect,
1157         .force = nouveau_connector_force,
1158         .fill_modes = drm_helper_probe_single_connector_modes,
1159         .set_property = nouveau_connector_set_property,
1160         .destroy = nouveau_connector_destroy,
1161         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1162         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1163         .atomic_set_property = nouveau_conn_atomic_set_property,
1164         .atomic_get_property = nouveau_conn_atomic_get_property,
1165         .late_register = nouveau_connector_late_register,
1166         .early_unregister = nouveau_connector_early_unregister,
1167 };
1168
1169 static const struct drm_connector_funcs
1170 nouveau_connector_funcs_lvds = {
1171         .dpms = drm_helper_connector_dpms,
1172         .reset = nouveau_conn_reset,
1173         .detect = nouveau_connector_detect_lvds,
1174         .force = nouveau_connector_force,
1175         .fill_modes = drm_helper_probe_single_connector_modes,
1176         .set_property = nouveau_connector_set_property,
1177         .destroy = nouveau_connector_destroy,
1178         .atomic_duplicate_state = nouveau_conn_atomic_duplicate_state,
1179         .atomic_destroy_state = nouveau_conn_atomic_destroy_state,
1180         .atomic_set_property = nouveau_conn_atomic_set_property,
1181         .atomic_get_property = nouveau_conn_atomic_get_property,
1182         .late_register = nouveau_connector_late_register,
1183         .early_unregister = nouveau_connector_early_unregister,
1184 };
1185
1186 void
1187 nouveau_connector_hpd(struct nouveau_connector *nv_connector, u64 bits)
1188 {
1189         struct nouveau_drm *drm = nouveau_drm(nv_connector->base.dev);
1190         u32 mask = drm_connector_mask(&nv_connector->base);
1191         unsigned long flags;
1192
1193         spin_lock_irqsave(&drm->hpd_lock, flags);
1194         if (!(drm->hpd_pending & mask)) {
1195                 nv_connector->hpd_pending |= bits;
1196                 drm->hpd_pending |= mask;
1197                 schedule_work(&drm->hpd_work);
1198         }
1199         spin_unlock_irqrestore(&drm->hpd_lock, flags);
1200 }
1201
1202 static int
1203 nouveau_connector_irq(struct nvif_event *event, void *repv, u32 repc)
1204 {
1205         struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), irq);
1206
1207         schedule_work(&nv_connector->irq_work);
1208         return NVIF_EVENT_KEEP;
1209 }
1210
1211 static int
1212 nouveau_connector_hotplug(struct nvif_event *event, void *repv, u32 repc)
1213 {
1214         struct nouveau_connector *nv_connector = container_of(event, typeof(*nv_connector), hpd);
1215         struct nvif_conn_event_v0 *rep = repv;
1216
1217         nouveau_connector_hpd(nv_connector, rep->types);
1218         return NVIF_EVENT_KEEP;
1219 }
1220
1221 static ssize_t
1222 nouveau_connector_aux_xfer(struct drm_dp_aux *obj, struct drm_dp_aux_msg *msg)
1223 {
1224         struct nouveau_connector *nv_connector =
1225                 container_of(obj, typeof(*nv_connector), aux);
1226         struct nouveau_encoder *nv_encoder;
1227         u8 size = msg->size;
1228         int ret;
1229
1230         nv_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1231         if (!nv_encoder)
1232                 return -ENODEV;
1233         if (WARN_ON(msg->size > 16))
1234                 return -E2BIG;
1235
1236         ret = nvif_outp_dp_aux_xfer(&nv_encoder->outp,
1237                                     msg->request, &size, msg->address, msg->buffer);
1238         if (ret >= 0) {
1239                 msg->reply = ret;
1240                 return size;
1241         }
1242
1243         return ret;
1244 }
1245
1246 static int
1247 drm_conntype_from_dcb(enum dcb_connector_type dcb)
1248 {
1249         switch (dcb) {
1250         case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
1251         case DCB_CONNECTOR_TV_0     :
1252         case DCB_CONNECTOR_TV_1     :
1253         case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
1254         case DCB_CONNECTOR_DMS59_0  :
1255         case DCB_CONNECTOR_DMS59_1  :
1256         case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
1257         case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
1258         case DCB_CONNECTOR_LVDS     :
1259         case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
1260         case DCB_CONNECTOR_DMS59_DP0:
1261         case DCB_CONNECTOR_DMS59_DP1:
1262         case DCB_CONNECTOR_DP       :
1263         case DCB_CONNECTOR_mDP      :
1264         case DCB_CONNECTOR_USB_C    : return DRM_MODE_CONNECTOR_DisplayPort;
1265         case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
1266         case DCB_CONNECTOR_HDMI_0   :
1267         case DCB_CONNECTOR_HDMI_1   :
1268         case DCB_CONNECTOR_HDMI_C   : return DRM_MODE_CONNECTOR_HDMIA;
1269         case DCB_CONNECTOR_WFD      : return DRM_MODE_CONNECTOR_VIRTUAL;
1270         default:
1271                 break;
1272         }
1273
1274         return DRM_MODE_CONNECTOR_Unknown;
1275 }
1276
1277 struct drm_connector *
1278 nouveau_connector_create(struct drm_device *dev, int index)
1279 {
1280         struct nouveau_drm *drm = nouveau_drm(dev);
1281         struct nouveau_display *disp = nouveau_display(dev);
1282         struct nouveau_connector *nv_connector = NULL;
1283         struct drm_connector *connector;
1284         struct drm_connector_list_iter conn_iter;
1285         int type, ret = 0;
1286         bool dummy;
1287
1288         drm_connector_list_iter_begin(dev, &conn_iter);
1289         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
1290                 nv_connector = nouveau_connector(connector);
1291                 if (nv_connector->index == index) {
1292                         drm_connector_list_iter_end(&conn_iter);
1293                         return connector;
1294                 }
1295         }
1296         drm_connector_list_iter_end(&conn_iter);
1297
1298         nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
1299         if (!nv_connector)
1300                 return ERR_PTR(-ENOMEM);
1301
1302         connector = &nv_connector->base;
1303         nv_connector->index = index;
1304         INIT_WORK(&nv_connector->irq_work, nouveau_dp_irq);
1305
1306         if (disp->disp.conn_mask & BIT(nv_connector->index)) {
1307                 ret = nvif_conn_ctor(&disp->disp, nv_connector->base.name, nv_connector->index,
1308                                      &nv_connector->conn);
1309                 if (ret) {
1310                         kfree(nv_connector);
1311                         return ERR_PTR(ret);
1312                 }
1313
1314                 switch (nv_connector->conn.info.type) {
1315                 case NVIF_CONN_VGA      : type = DCB_CONNECTOR_VGA; break;
1316                 case NVIF_CONN_DVI_I    : type = DCB_CONNECTOR_DVI_I; break;
1317                 case NVIF_CONN_DVI_D    : type = DCB_CONNECTOR_DVI_D; break;
1318                 case NVIF_CONN_LVDS     : type = DCB_CONNECTOR_LVDS; break;
1319                 case NVIF_CONN_LVDS_SPWG: type = DCB_CONNECTOR_LVDS_SPWG; break;
1320                 case NVIF_CONN_DP       : type = DCB_CONNECTOR_DP; break;
1321                 case NVIF_CONN_EDP      : type = DCB_CONNECTOR_eDP; break;
1322                 case NVIF_CONN_HDMI     : type = DCB_CONNECTOR_HDMI_0; break;
1323                 default:
1324                         WARN_ON(1);
1325                         return NULL;
1326                 }
1327
1328                 nv_connector->type = type;
1329         } else {
1330                 u8 *dcb = olddcb_conn(dev, nv_connector->index);
1331
1332                 if (dcb)
1333                         nv_connector->type = dcb[0];
1334                 else
1335                         nv_connector->type = DCB_CONNECTOR_NONE;
1336
1337                 /* attempt to parse vbios connector type and hotplug gpio */
1338                 if (nv_connector->type != DCB_CONNECTOR_NONE) {
1339                         if (drm_conntype_from_dcb(nv_connector->type) ==
1340                                                   DRM_MODE_CONNECTOR_Unknown) {
1341                                 NV_WARN(drm, "unknown connector type %02x\n",
1342                                         nv_connector->type);
1343                                 nv_connector->type = DCB_CONNECTOR_NONE;
1344                         }
1345                 }
1346
1347                 /* no vbios data, or an unknown dcb connector type - attempt to
1348                  * figure out something suitable ourselves
1349                  */
1350                 if (nv_connector->type == DCB_CONNECTOR_NONE &&
1351                     !WARN_ON(drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)) {
1352                         struct dcb_table *dcbt = &drm->vbios.dcb;
1353                         u32 encoders = 0;
1354                         int i;
1355
1356                         for (i = 0; i < dcbt->entries; i++) {
1357                                 if (dcbt->entry[i].connector == nv_connector->index)
1358                                         encoders |= (1 << dcbt->entry[i].type);
1359                         }
1360
1361                         if (encoders & (1 << DCB_OUTPUT_TMDS)) {
1362                                 if (encoders & (1 << DCB_OUTPUT_ANALOG))
1363                                         nv_connector->type = DCB_CONNECTOR_DVI_I;
1364                                 else
1365                                         nv_connector->type = DCB_CONNECTOR_DVI_D;
1366                         } else
1367                         if (encoders & (1 << DCB_OUTPUT_ANALOG)) {
1368                                 nv_connector->type = DCB_CONNECTOR_VGA;
1369                         } else
1370                         if (encoders & (1 << DCB_OUTPUT_LVDS)) {
1371                                 nv_connector->type = DCB_CONNECTOR_LVDS;
1372                         } else
1373                         if (encoders & (1 << DCB_OUTPUT_TV)) {
1374                                 nv_connector->type = DCB_CONNECTOR_TV_0;
1375                         }
1376                 }
1377         }
1378
1379         type = drm_conntype_from_dcb(nv_connector->type);
1380         if (type == DRM_MODE_CONNECTOR_LVDS)
1381                 drm_connector_init(dev, connector, &nouveau_connector_funcs_lvds, type);
1382         else
1383                 drm_connector_init(dev, connector, &nouveau_connector_funcs, type);
1384
1385         switch (type) {
1386         case DRM_MODE_CONNECTOR_LVDS:
1387                 ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
1388                 if (ret) {
1389                         NV_ERROR(drm, "Error parsing LVDS table, disabling\n");
1390                         kfree(nv_connector);
1391                         return ERR_PTR(ret);
1392                 }
1393
1394                 break;
1395         case DRM_MODE_CONNECTOR_DisplayPort:
1396         case DRM_MODE_CONNECTOR_eDP:
1397                 nv_connector->aux.dev = connector->kdev;
1398                 nv_connector->aux.drm_dev = dev;
1399                 nv_connector->aux.transfer = nouveau_connector_aux_xfer;
1400                 nv_connector->aux.name = connector->name;
1401                 drm_dp_aux_init(&nv_connector->aux);
1402                 break;
1403         default:
1404                 break;
1405         }
1406
1407         /* HDMI 3D support */
1408         if ((disp->disp.object.oclass >= G82_DISP)
1409             && ((type == DRM_MODE_CONNECTOR_DisplayPort)
1410                 || (type == DRM_MODE_CONNECTOR_eDP)
1411                 || (type == DRM_MODE_CONNECTOR_HDMIA)))
1412                 connector->stereo_allowed = true;
1413
1414         /* defaults, will get overridden in detect() */
1415         connector->interlace_allowed = false;
1416         connector->doublescan_allowed = false;
1417
1418         drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
1419         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1420
1421         if (nvif_object_constructed(&nv_connector->conn.object)) {
1422                 ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsHotplug",
1423                                            nouveau_connector_hotplug,
1424                                            NVIF_CONN_EVENT_V0_PLUG | NVIF_CONN_EVENT_V0_UNPLUG,
1425                                            &nv_connector->hpd);
1426                 if (ret == 0)
1427                         connector->polled = DRM_CONNECTOR_POLL_HPD;
1428
1429                 if (nv_connector->aux.transfer) {
1430                         ret = nvif_conn_event_ctor(&nv_connector->conn, "kmsDpIrq",
1431                                                    nouveau_connector_irq, NVIF_CONN_EVENT_V0_IRQ,
1432                                                    &nv_connector->irq);
1433                         if (ret) {
1434                                 nvif_event_dtor(&nv_connector->hpd);
1435                                 nvif_conn_dtor(&nv_connector->conn);
1436                                 goto drm_conn_err;
1437                         }
1438                 }
1439         }
1440
1441         connector->funcs->reset(connector);
1442         nouveau_conn_attach_properties(connector);
1443
1444         /* Default scaling mode */
1445         switch (nv_connector->type) {
1446         case DCB_CONNECTOR_LVDS:
1447         case DCB_CONNECTOR_LVDS_SPWG:
1448         case DCB_CONNECTOR_eDP:
1449                 /* see note in nouveau_connector_set_property() */
1450                 if (disp->disp.object.oclass < NV50_DISP) {
1451                         nv_connector->scaling_mode = DRM_MODE_SCALE_FULLSCREEN;
1452                         break;
1453                 }
1454                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1455                 break;
1456         default:
1457                 nv_connector->scaling_mode = DRM_MODE_SCALE_NONE;
1458                 break;
1459         }
1460
1461         /* dithering properties */
1462         switch (nv_connector->type) {
1463         case DCB_CONNECTOR_TV_0:
1464         case DCB_CONNECTOR_TV_1:
1465         case DCB_CONNECTOR_TV_3:
1466         case DCB_CONNECTOR_VGA:
1467                 break;
1468         default:
1469                 nv_connector->dithering_mode = DITHERING_MODE_AUTO;
1470                 break;
1471         }
1472
1473         switch (type) {
1474         case DRM_MODE_CONNECTOR_DisplayPort:
1475                 nv_connector->dp_encoder = find_encoder(&nv_connector->base, DCB_OUTPUT_DP);
1476                 fallthrough;
1477         case DRM_MODE_CONNECTOR_eDP:
1478                 drm_dp_cec_register_connector(&nv_connector->aux, connector);
1479                 break;
1480         }
1481
1482         drm_connector_register(connector);
1483         return connector;
1484
1485 drm_conn_err:
1486         drm_connector_cleanup(connector);
1487         kfree(nv_connector);
1488         return ERR_PTR(ret);
1489 }