root/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c

DEFINITIONS

1. amdgpu_connector_hotplug
2. amdgpu_connector_property_change_mode
3. amdgpu_connector_get_monitor_bpc
4. amdgpu_connector_update_scratch_regs
5. amdgpu_connector_find_encoder
6. amdgpu_connector_edid
7. amdgpu_connector_get_hardcoded_edid
8. amdgpu_connector_get_edid
9. amdgpu_connector_free_edid
10. amdgpu_connector_ddc_get_modes
11. amdgpu_connector_best_single_encoder
12. amdgpu_get_native_mode
13. amdgpu_connector_lcd_native_mode
14. amdgpu_connector_add_common_modes
15. amdgpu_connector_set_property
16. amdgpu_connector_fixup_lcd_native_mode
17. amdgpu_connector_lvds_get_modes
18. amdgpu_connector_lvds_mode_valid
19. amdgpu_connector_lvds_detect
20. amdgpu_connector_unregister
21. amdgpu_connector_destroy
22. amdgpu_connector_set_lcd_property
23. amdgpu_connector_vga_get_modes
24. amdgpu_connector_vga_mode_valid
25. amdgpu_connector_vga_detect
26. amdgpu_connector_check_hpd_status_unchanged
27. amdgpu_connector_dvi_detect
28. amdgpu_connector_dvi_encoder
29. amdgpu_connector_dvi_force
30. amdgpu_connector_dvi_mode_valid
31. amdgpu_connector_dp_get_modes
32. amdgpu_connector_encoder_get_dp_bridge_encoder_id
33. amdgpu_connector_encoder_is_hbr2
34. amdgpu_connector_is_dp12_capable
35. amdgpu_connector_dp_detect
36. amdgpu_connector_dp_mode_valid
37. amdgpu_connector_add

   1 /*
   2  * Copyright 2007-8 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: Dave Airlie
  24  *          Alex Deucher
  25  */
  26 
  27 #include <drm/drm_edid.h>
  28 #include <drm/drm_fb_helper.h>
  29 #include <drm/drm_probe_helper.h>
  30 #include <drm/amdgpu_drm.h>
  31 #include "amdgpu.h"
  32 #include "atom.h"
  33 #include "atombios_encoders.h"
  34 #include "atombios_dp.h"
  35 #include "amdgpu_connectors.h"
  36 #include "amdgpu_i2c.h"
  37 #include "amdgpu_display.h"
  38 
  39 #include <linux/pm_runtime.h>
  40 
  41 void amdgpu_connector_hotplug(struct drm_connector *connector)
  42 {
  43         struct drm_device *dev = connector->dev;
  44         struct amdgpu_device *adev = dev->dev_private;
  45         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
  46 
  47         /* bail if the connector does not have hpd pin, e.g.,
  48          * VGA, TV, etc.
  49          */
  50         if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE)
  51                 return;
  52 
  53         amdgpu_display_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd);
  54 
  55         /* if the connector is already off, don't turn it back on */
  56         if (connector->dpms != DRM_MODE_DPMS_ON)
  57                 return;
  58 
  59         /* just deal with DP (not eDP) here. */
  60         if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
  61                 struct amdgpu_connector_atom_dig *dig_connector =
  62                         amdgpu_connector->con_priv;
  63 
  64                 /* if existing sink type was not DP no need to retrain */
  65                 if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT)
  66                         return;
  67 
  68                 /* first get sink type as it may be reset after (un)plug */
  69                 dig_connector->dp_sink_type = amdgpu_atombios_dp_get_sinktype(amdgpu_connector);
  70                 /* don't do anything if sink is not display port, i.e.,
  71                  * passive dp->(dvi|hdmi) adaptor
  72                  */
  73                 if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT &&
  74                     amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd) &&
  75                     amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) {
  76                         /* Don't start link training before we have the DPCD */
  77                         if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
  78                                 return;
  79 
  80                         /* Turn the connector off and back on immediately, which
  81                          * will trigger link training
  82                          */
  83                         drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
  84                         drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
  85                 }
  86         }
  87 }
  88 
  89 static void amdgpu_connector_property_change_mode(struct drm_encoder *encoder)
  90 {
  91         struct drm_crtc *crtc = encoder->crtc;
  92 
  93         if (crtc && crtc->enabled) {
  94                 drm_crtc_helper_set_mode(crtc, &crtc->mode,
  95                                          crtc->x, crtc->y, crtc->primary->fb);
  96         }
  97 }
  98 
  99 int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector)
 100 {
 101         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 102         struct amdgpu_connector_atom_dig *dig_connector;
 103         int bpc = 8;
 104         unsigned mode_clock, max_tmds_clock;
 105 
 106         switch (connector->connector_type) {
 107         case DRM_MODE_CONNECTOR_DVII:
 108         case DRM_MODE_CONNECTOR_HDMIB:
 109                 if (amdgpu_connector->use_digital) {
 110                         if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
 111                                 if (connector->display_info.bpc)
 112                                         bpc = connector->display_info.bpc;
 113                         }
 114                 }
 115                 break;
 116         case DRM_MODE_CONNECTOR_DVID:
 117         case DRM_MODE_CONNECTOR_HDMIA:
 118                 if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
 119                         if (connector->display_info.bpc)
 120                                 bpc = connector->display_info.bpc;
 121                 }
 122                 break;
 123         case DRM_MODE_CONNECTOR_DisplayPort:
 124                 dig_connector = amdgpu_connector->con_priv;
 125                 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 126                     (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
 127                     drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
 128                         if (connector->display_info.bpc)
 129                                 bpc = connector->display_info.bpc;
 130                 }
 131                 break;
 132         case DRM_MODE_CONNECTOR_eDP:
 133         case DRM_MODE_CONNECTOR_LVDS:
 134                 if (connector->display_info.bpc)
 135                         bpc = connector->display_info.bpc;
 136                 else {
 137                         const struct drm_connector_helper_funcs *connector_funcs =
 138                                 connector->helper_private;
 139                         struct drm_encoder *encoder = connector_funcs->best_encoder(connector);
 140                         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 141                         struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
 142 
 143                         if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR)
 144                                 bpc = 6;
 145                         else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR)
 146                                 bpc = 8;
 147                 }
 148                 break;
 149         }
 150 
 151         if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
 152                 /*
 153                  * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make
 154                  * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at
 155                  * 12 bpc is always supported on hdmi deep color sinks, as this is
 156                  * required by the HDMI-1.3 spec. Clamp to a safe 12 bpc maximum.
 157                  */
 158                 if (bpc > 12) {
 159                         DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 12 bpc.\n",
 160                                   connector->name, bpc);
 161                         bpc = 12;
 162                 }
 163 
 164                 /* Any defined maximum tmds clock limit we must not exceed? */
 165                 if (connector->display_info.max_tmds_clock > 0) {
 166                         /* mode_clock is clock in kHz for mode to be modeset on this connector */
 167                         mode_clock = amdgpu_connector->pixelclock_for_modeset;
 168 
 169                         /* Maximum allowable input clock in kHz */
 170                         max_tmds_clock = connector->display_info.max_tmds_clock;
 171 
 172                         DRM_DEBUG("%s: hdmi mode dotclock %d kHz, max tmds input clock %d kHz.\n",
 173                                   connector->name, mode_clock, max_tmds_clock);
 174 
 175                         /* Check if bpc is within clock limit. Try to degrade gracefully otherwise */
 176                         if ((bpc == 12) && (mode_clock * 3/2 > max_tmds_clock)) {
 177                                 if ((connector->display_info.edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_30) &&
 178                                     (mode_clock * 5/4 <= max_tmds_clock))
 179                                         bpc = 10;
 180                                 else
 181                                         bpc = 8;
 182 
 183                                 DRM_DEBUG("%s: HDMI deep color 12 bpc exceeds max tmds clock. Using %d bpc.\n",
 184                                           connector->name, bpc);
 185                         }
 186 
 187                         if ((bpc == 10) && (mode_clock * 5/4 > max_tmds_clock)) {
 188                                 bpc = 8;
 189                                 DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n",
 190                                           connector->name, bpc);
 191                         }
 192                 } else if (bpc > 8) {
 193                         /* max_tmds_clock missing, but hdmi spec mandates it for deep color. */
 194                         DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n",
 195                                   connector->name);
 196                         bpc = 8;
 197                 }
 198         }
 199 
 200         if ((amdgpu_deep_color == 0) && (bpc > 8)) {
 201                 DRM_DEBUG("%s: Deep color disabled. Set amdgpu module param deep_color=1 to enable.\n",
 202                           connector->name);
 203                 bpc = 8;
 204         }
 205 
 206         DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n",
 207                   connector->name, connector->display_info.bpc, bpc);
 208 
 209         return bpc;
 210 }
 211 
 212 static void
 213 amdgpu_connector_update_scratch_regs(struct drm_connector *connector,
 214                                       enum drm_connector_status status)
 215 {
 216         struct drm_encoder *best_encoder;
 217         struct drm_encoder *encoder;
 218         const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 219         bool connected;
 220         int i;
 221 
 222         best_encoder = connector_funcs->best_encoder(connector);
 223 
 224         drm_connector_for_each_possible_encoder(connector, encoder, i) {
 225                 if ((encoder == best_encoder) && (status == connector_status_connected))
 226                         connected = true;
 227                 else
 228                         connected = false;
 229 
 230                 amdgpu_atombios_encoder_set_bios_scratch_regs(connector, encoder, connected);
 231         }
 232 }
 233 
 234 static struct drm_encoder *
 235 amdgpu_connector_find_encoder(struct drm_connector *connector,
 236                                int encoder_type)
 237 {
 238         struct drm_encoder *encoder;
 239         int i;
 240 
 241         drm_connector_for_each_possible_encoder(connector, encoder, i) {
 242                 if (encoder->encoder_type == encoder_type)
 243                         return encoder;
 244         }
 245 
 246         return NULL;
 247 }
 248 
 249 struct edid *amdgpu_connector_edid(struct drm_connector *connector)
 250 {
 251         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 252         struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
 253 
 254         if (amdgpu_connector->edid) {
 255                 return amdgpu_connector->edid;
 256         } else if (edid_blob) {
 257                 struct edid *edid = kmemdup(edid_blob->data, edid_blob->length, GFP_KERNEL);
 258                 if (edid)
 259                         amdgpu_connector->edid = edid;
 260         }
 261         return amdgpu_connector->edid;
 262 }
 263 
 264 static struct edid *
 265 amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev)
 266 {
 267         struct edid *edid;
 268 
 269         if (adev->mode_info.bios_hardcoded_edid) {
 270                 edid = kmalloc(adev->mode_info.bios_hardcoded_edid_size, GFP_KERNEL);
 271                 if (edid) {
 272                         memcpy((unsigned char *)edid,
 273                                (unsigned char *)adev->mode_info.bios_hardcoded_edid,
 274                                adev->mode_info.bios_hardcoded_edid_size);
 275                         return edid;
 276                 }
 277         }
 278         return NULL;
 279 }
 280 
 281 static void amdgpu_connector_get_edid(struct drm_connector *connector)
 282 {
 283         struct drm_device *dev = connector->dev;
 284         struct amdgpu_device *adev = dev->dev_private;
 285         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 286 
 287         if (amdgpu_connector->edid)
 288                 return;
 289 
 290         /* on hw with routers, select right port */
 291         if (amdgpu_connector->router.ddc_valid)
 292                 amdgpu_i2c_router_select_ddc_port(amdgpu_connector);
 293 
 294         if ((amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
 295              ENCODER_OBJECT_ID_NONE) &&
 296             amdgpu_connector->ddc_bus->has_aux) {
 297                 amdgpu_connector->edid = drm_get_edid(connector,
 298                                                       &amdgpu_connector->ddc_bus->aux.ddc);
 299         } else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) ||
 300                    (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) {
 301                 struct amdgpu_connector_atom_dig *dig = amdgpu_connector->con_priv;
 302 
 303                 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT ||
 304                      dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) &&
 305                     amdgpu_connector->ddc_bus->has_aux)
 306                         amdgpu_connector->edid = drm_get_edid(connector,
 307                                                               &amdgpu_connector->ddc_bus->aux.ddc);
 308                 else if (amdgpu_connector->ddc_bus)
 309                         amdgpu_connector->edid = drm_get_edid(connector,
 310                                                               &amdgpu_connector->ddc_bus->adapter);
 311         } else if (amdgpu_connector->ddc_bus) {
 312                 amdgpu_connector->edid = drm_get_edid(connector,
 313                                                       &amdgpu_connector->ddc_bus->adapter);
 314         }
 315 
 316         if (!amdgpu_connector->edid) {
 317                 /* some laptops provide a hardcoded edid in rom for LCDs */
 318                 if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) ||
 319                      (connector->connector_type == DRM_MODE_CONNECTOR_eDP)))
 320                         amdgpu_connector->edid = amdgpu_connector_get_hardcoded_edid(adev);
 321         }
 322 }
 323 
 324 static void amdgpu_connector_free_edid(struct drm_connector *connector)
 325 {
 326         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 327 
 328         kfree(amdgpu_connector->edid);
 329         amdgpu_connector->edid = NULL;
 330 }
 331 
 332 static int amdgpu_connector_ddc_get_modes(struct drm_connector *connector)
 333 {
 334         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 335         int ret;
 336 
 337         if (amdgpu_connector->edid) {
 338                 drm_connector_update_edid_property(connector, amdgpu_connector->edid);
 339                 ret = drm_add_edid_modes(connector, amdgpu_connector->edid);
 340                 return ret;
 341         }
 342         drm_connector_update_edid_property(connector, NULL);
 343         return 0;
 344 }
 345 
 346 static struct drm_encoder *
 347 amdgpu_connector_best_single_encoder(struct drm_connector *connector)
 348 {
 349         struct drm_encoder *encoder;
 350         int i;
 351 
 352         /* pick the first one */
 353         drm_connector_for_each_possible_encoder(connector, encoder, i)
 354                 return encoder;
 355 
 356         return NULL;
 357 }
 358 
 359 static void amdgpu_get_native_mode(struct drm_connector *connector)
 360 {
 361         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 362         struct amdgpu_encoder *amdgpu_encoder;
 363 
 364         if (encoder == NULL)
 365                 return;
 366 
 367         amdgpu_encoder = to_amdgpu_encoder(encoder);
 368 
 369         if (!list_empty(&connector->probed_modes)) {
 370                 struct drm_display_mode *preferred_mode =
 371                         list_first_entry(&connector->probed_modes,
 372                                          struct drm_display_mode, head);
 373 
 374                 amdgpu_encoder->native_mode = *preferred_mode;
 375         } else {
 376                 amdgpu_encoder->native_mode.clock = 0;
 377         }
 378 }
 379 
 380 static struct drm_display_mode *
 381 amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 382 {
 383         struct drm_device *dev = encoder->dev;
 384         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 385         struct drm_display_mode *mode = NULL;
 386         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 387 
 388         if (native_mode->hdisplay != 0 &&
 389             native_mode->vdisplay != 0 &&
 390             native_mode->clock != 0) {
 391                 mode = drm_mode_duplicate(dev, native_mode);
 392                 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 393                 drm_mode_set_name(mode);
 394 
 395                 DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name);
 396         } else if (native_mode->hdisplay != 0 &&
 397                    native_mode->vdisplay != 0) {
 398                 /* mac laptops without an edid */
 399                 /* Note that this is not necessarily the exact panel mode,
 400                  * but an approximation based on the cvt formula.  For these
 401                  * systems we should ideally read the mode info out of the
 402                  * registers or add a mode table, but this works and is much
 403                  * simpler.
 404                  */
 405                 mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
 406                 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 407                 DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
 408         }
 409         return mode;
 410 }
 411 
 412 static void amdgpu_connector_add_common_modes(struct drm_encoder *encoder,
 413                                                struct drm_connector *connector)
 414 {
 415         struct drm_device *dev = encoder->dev;
 416         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 417         struct drm_display_mode *mode = NULL;
 418         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 419         int i;
 420         static const struct mode_size {
 421                 int w;
 422                 int h;
 423         } common_modes[17] = {
 424                 { 640,  480},
 425                 { 720,  480},
 426                 { 800,  600},
 427                 { 848,  480},
 428                 {1024,  768},
 429                 {1152,  768},
 430                 {1280,  720},
 431                 {1280,  800},
 432                 {1280,  854},
 433                 {1280,  960},
 434                 {1280, 1024},
 435                 {1440,  900},
 436                 {1400, 1050},
 437                 {1680, 1050},
 438                 {1600, 1200},
 439                 {1920, 1080},
 440                 {1920, 1200}
 441         };
 442 
 443         for (i = 0; i < 17; i++) {
 444                 if (amdgpu_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) {
 445                         if (common_modes[i].w > 1024 ||
 446                             common_modes[i].h > 768)
 447                                 continue;
 448                 }
 449                 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
 450                         if (common_modes[i].w > native_mode->hdisplay ||
 451                             common_modes[i].h > native_mode->vdisplay ||
 452                             (common_modes[i].w == native_mode->hdisplay &&
 453                              common_modes[i].h == native_mode->vdisplay))
 454                                 continue;
 455                 }
 456                 if (common_modes[i].w < 320 || common_modes[i].h < 200)
 457                         continue;
 458 
 459                 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false);
 460                 drm_mode_probed_add(connector, mode);
 461         }
 462 }
 463 
 464 static int amdgpu_connector_set_property(struct drm_connector *connector,
 465                                           struct drm_property *property,
 466                                           uint64_t val)
 467 {
 468         struct drm_device *dev = connector->dev;
 469         struct amdgpu_device *adev = dev->dev_private;
 470         struct drm_encoder *encoder;
 471         struct amdgpu_encoder *amdgpu_encoder;
 472 
 473         if (property == adev->mode_info.coherent_mode_property) {
 474                 struct amdgpu_encoder_atom_dig *dig;
 475                 bool new_coherent_mode;
 476 
 477                 /* need to find digital encoder on connector */
 478                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 479                 if (!encoder)
 480                         return 0;
 481 
 482                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 483 
 484                 if (!amdgpu_encoder->enc_priv)
 485                         return 0;
 486 
 487                 dig = amdgpu_encoder->enc_priv;
 488                 new_coherent_mode = val ? true : false;
 489                 if (dig->coherent_mode != new_coherent_mode) {
 490                         dig->coherent_mode = new_coherent_mode;
 491                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 492                 }
 493         }
 494 
 495         if (property == adev->mode_info.audio_property) {
 496                 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 497                 /* need to find digital encoder on connector */
 498                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 499                 if (!encoder)
 500                         return 0;
 501 
 502                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 503 
 504                 if (amdgpu_connector->audio != val) {
 505                         amdgpu_connector->audio = val;
 506                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 507                 }
 508         }
 509 
 510         if (property == adev->mode_info.dither_property) {
 511                 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 512                 /* need to find digital encoder on connector */
 513                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 514                 if (!encoder)
 515                         return 0;
 516 
 517                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 518 
 519                 if (amdgpu_connector->dither != val) {
 520                         amdgpu_connector->dither = val;
 521                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 522                 }
 523         }
 524 
 525         if (property == adev->mode_info.underscan_property) {
 526                 /* need to find digital encoder on connector */
 527                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 528                 if (!encoder)
 529                         return 0;
 530 
 531                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 532 
 533                 if (amdgpu_encoder->underscan_type != val) {
 534                         amdgpu_encoder->underscan_type = val;
 535                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 536                 }
 537         }
 538 
 539         if (property == adev->mode_info.underscan_hborder_property) {
 540                 /* need to find digital encoder on connector */
 541                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 542                 if (!encoder)
 543                         return 0;
 544 
 545                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 546 
 547                 if (amdgpu_encoder->underscan_hborder != val) {
 548                         amdgpu_encoder->underscan_hborder = val;
 549                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 550                 }
 551         }
 552 
 553         if (property == adev->mode_info.underscan_vborder_property) {
 554                 /* need to find digital encoder on connector */
 555                 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS);
 556                 if (!encoder)
 557                         return 0;
 558 
 559                 amdgpu_encoder = to_amdgpu_encoder(encoder);
 560 
 561                 if (amdgpu_encoder->underscan_vborder != val) {
 562                         amdgpu_encoder->underscan_vborder = val;
 563                         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 564                 }
 565         }
 566 
 567         if (property == adev->mode_info.load_detect_property) {
 568                 struct amdgpu_connector *amdgpu_connector =
 569                         to_amdgpu_connector(connector);
 570 
 571                 if (val == 0)
 572                         amdgpu_connector->dac_load_detect = false;
 573                 else
 574                         amdgpu_connector->dac_load_detect = true;
 575         }
 576 
 577         if (property == dev->mode_config.scaling_mode_property) {
 578                 enum amdgpu_rmx_type rmx_type;
 579 
 580                 if (connector->encoder) {
 581                         amdgpu_encoder = to_amdgpu_encoder(connector->encoder);
 582                 } else {
 583                         const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 584                         amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector));
 585                 }
 586 
 587                 switch (val) {
 588                 default:
 589                 case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
 590                 case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
 591                 case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
 592                 case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
 593                 }
 594                 if (amdgpu_encoder->rmx_type == rmx_type)
 595                         return 0;
 596 
 597                 if ((rmx_type != DRM_MODE_SCALE_NONE) &&
 598                     (amdgpu_encoder->native_mode.clock == 0))
 599                         return 0;
 600 
 601                 amdgpu_encoder->rmx_type = rmx_type;
 602 
 603                 amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 604         }
 605 
 606         return 0;
 607 }
 608 
 609 static void
 610 amdgpu_connector_fixup_lcd_native_mode(struct drm_encoder *encoder,
 611                                         struct drm_connector *connector)
 612 {
 613         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 614         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 615         struct drm_display_mode *t, *mode;
 616 
 617         /* If the EDID preferred mode doesn't match the native mode, use it */
 618         list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
 619                 if (mode->type & DRM_MODE_TYPE_PREFERRED) {
 620                         if (mode->hdisplay != native_mode->hdisplay ||
 621                             mode->vdisplay != native_mode->vdisplay)
 622                                 memcpy(native_mode, mode, sizeof(*mode));
 623                 }
 624         }
 625 
 626         /* Try to get native mode details from EDID if necessary */
 627         if (!native_mode->clock) {
 628                 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
 629                         if (mode->hdisplay == native_mode->hdisplay &&
 630                             mode->vdisplay == native_mode->vdisplay) {
 631                                 *native_mode = *mode;
 632                                 drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V);
 633                                 DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n");
 634                                 break;
 635                         }
 636                 }
 637         }
 638 
 639         if (!native_mode->clock) {
 640                 DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n");
 641                 amdgpu_encoder->rmx_type = RMX_OFF;
 642         }
 643 }
 644 
 645 static int amdgpu_connector_lvds_get_modes(struct drm_connector *connector)
 646 {
 647         struct drm_encoder *encoder;
 648         int ret = 0;
 649         struct drm_display_mode *mode;
 650 
 651         amdgpu_connector_get_edid(connector);
 652         ret = amdgpu_connector_ddc_get_modes(connector);
 653         if (ret > 0) {
 654                 encoder = amdgpu_connector_best_single_encoder(connector);
 655                 if (encoder) {
 656                         amdgpu_connector_fixup_lcd_native_mode(encoder, connector);
 657                         /* add scaled modes */
 658                         amdgpu_connector_add_common_modes(encoder, connector);
 659                 }
 660                 return ret;
 661         }
 662 
 663         encoder = amdgpu_connector_best_single_encoder(connector);
 664         if (!encoder)
 665                 return 0;
 666 
 667         /* we have no EDID modes */
 668         mode = amdgpu_connector_lcd_native_mode(encoder);
 669         if (mode) {
 670                 ret = 1;
 671                 drm_mode_probed_add(connector, mode);
 672                 /* add the width/height from vbios tables if available */
 673                 connector->display_info.width_mm = mode->width_mm;
 674                 connector->display_info.height_mm = mode->height_mm;
 675                 /* add scaled modes */
 676                 amdgpu_connector_add_common_modes(encoder, connector);
 677         }
 678 
 679         return ret;
 680 }
 681 
 682 static enum drm_mode_status amdgpu_connector_lvds_mode_valid(struct drm_connector *connector,
 683                                              struct drm_display_mode *mode)
 684 {
 685         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 686 
 687         if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
 688                 return MODE_PANEL;
 689 
 690         if (encoder) {
 691                 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 692                 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 693 
 694                 /* AVIVO hardware supports downscaling modes larger than the panel
 695                  * to the panel size, but I'm not sure this is desirable.
 696                  */
 697                 if ((mode->hdisplay > native_mode->hdisplay) ||
 698                     (mode->vdisplay > native_mode->vdisplay))
 699                         return MODE_PANEL;
 700 
 701                 /* if scaling is disabled, block non-native modes */
 702                 if (amdgpu_encoder->rmx_type == RMX_OFF) {
 703                         if ((mode->hdisplay != native_mode->hdisplay) ||
 704                             (mode->vdisplay != native_mode->vdisplay))
 705                                 return MODE_PANEL;
 706                 }
 707         }
 708 
 709         return MODE_OK;
 710 }
 711 
 712 static enum drm_connector_status
 713 amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force)
 714 {
 715         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 716         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
 717         enum drm_connector_status ret = connector_status_disconnected;
 718         int r;
 719 
 720         if (!drm_kms_helper_is_poll_worker()) {
 721                 r = pm_runtime_get_sync(connector->dev->dev);
 722                 if (r < 0)
 723                         return connector_status_disconnected;
 724         }
 725 
 726         if (encoder) {
 727                 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
 728                 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
 729 
 730                 /* check if panel is valid */
 731                 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
 732                         ret = connector_status_connected;
 733 
 734         }
 735 
 736         /* check for edid as well */
 737         amdgpu_connector_get_edid(connector);
 738         if (amdgpu_connector->edid)
 739                 ret = connector_status_connected;
 740         /* check acpi lid status ??? */
 741 
 742         amdgpu_connector_update_scratch_regs(connector, ret);
 743 
 744         if (!drm_kms_helper_is_poll_worker()) {
 745                 pm_runtime_mark_last_busy(connector->dev->dev);
 746                 pm_runtime_put_autosuspend(connector->dev->dev);
 747         }
 748 
 749         return ret;
 750 }
 751 
 752 static void amdgpu_connector_unregister(struct drm_connector *connector)
 753 {
 754         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 755 
 756         if (amdgpu_connector->ddc_bus && amdgpu_connector->ddc_bus->has_aux) {
 757                 drm_dp_aux_unregister(&amdgpu_connector->ddc_bus->aux);
 758                 amdgpu_connector->ddc_bus->has_aux = false;
 759         }
 760 }
 761 
 762 static void amdgpu_connector_destroy(struct drm_connector *connector)
 763 {
 764         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 765 
 766         amdgpu_connector_free_edid(connector);
 767         kfree(amdgpu_connector->con_priv);
 768         drm_connector_unregister(connector);
 769         drm_connector_cleanup(connector);
 770         kfree(connector);
 771 }
 772 
 773 static int amdgpu_connector_set_lcd_property(struct drm_connector *connector,
 774                                               struct drm_property *property,
 775                                               uint64_t value)
 776 {
 777         struct drm_device *dev = connector->dev;
 778         struct amdgpu_encoder *amdgpu_encoder;
 779         enum amdgpu_rmx_type rmx_type;
 780 
 781         DRM_DEBUG_KMS("\n");
 782         if (property != dev->mode_config.scaling_mode_property)
 783                 return 0;
 784 
 785         if (connector->encoder)
 786                 amdgpu_encoder = to_amdgpu_encoder(connector->encoder);
 787         else {
 788                 const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private;
 789                 amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector));
 790         }
 791 
 792         switch (value) {
 793         case DRM_MODE_SCALE_NONE: rmx_type = RMX_OFF; break;
 794         case DRM_MODE_SCALE_CENTER: rmx_type = RMX_CENTER; break;
 795         case DRM_MODE_SCALE_ASPECT: rmx_type = RMX_ASPECT; break;
 796         default:
 797         case DRM_MODE_SCALE_FULLSCREEN: rmx_type = RMX_FULL; break;
 798         }
 799         if (amdgpu_encoder->rmx_type == rmx_type)
 800                 return 0;
 801 
 802         amdgpu_encoder->rmx_type = rmx_type;
 803 
 804         amdgpu_connector_property_change_mode(&amdgpu_encoder->base);
 805         return 0;
 806 }
 807 
 808 
 809 static const struct drm_connector_helper_funcs amdgpu_connector_lvds_helper_funcs = {
 810         .get_modes = amdgpu_connector_lvds_get_modes,
 811         .mode_valid = amdgpu_connector_lvds_mode_valid,
 812         .best_encoder = amdgpu_connector_best_single_encoder,
 813 };
 814 
 815 static const struct drm_connector_funcs amdgpu_connector_lvds_funcs = {
 816         .dpms = drm_helper_connector_dpms,
 817         .detect = amdgpu_connector_lvds_detect,
 818         .fill_modes = drm_helper_probe_single_connector_modes,
 819         .early_unregister = amdgpu_connector_unregister,
 820         .destroy = amdgpu_connector_destroy,
 821         .set_property = amdgpu_connector_set_lcd_property,
 822 };
 823 
 824 static int amdgpu_connector_vga_get_modes(struct drm_connector *connector)
 825 {
 826         int ret;
 827 
 828         amdgpu_connector_get_edid(connector);
 829         ret = amdgpu_connector_ddc_get_modes(connector);
 830 
 831         return ret;
 832 }
 833 
 834 static enum drm_mode_status amdgpu_connector_vga_mode_valid(struct drm_connector *connector,
 835                                             struct drm_display_mode *mode)
 836 {
 837         struct drm_device *dev = connector->dev;
 838         struct amdgpu_device *adev = dev->dev_private;
 839 
 840         /* XXX check mode bandwidth */
 841 
 842         if ((mode->clock / 10) > adev->clock.max_pixel_clock)
 843                 return MODE_CLOCK_HIGH;
 844 
 845         return MODE_OK;
 846 }
 847 
 848 static enum drm_connector_status
 849 amdgpu_connector_vga_detect(struct drm_connector *connector, bool force)
 850 {
 851         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 852         struct drm_encoder *encoder;
 853         const struct drm_encoder_helper_funcs *encoder_funcs;
 854         bool dret = false;
 855         enum drm_connector_status ret = connector_status_disconnected;
 856         int r;
 857 
 858         if (!drm_kms_helper_is_poll_worker()) {
 859                 r = pm_runtime_get_sync(connector->dev->dev);
 860                 if (r < 0)
 861                         return connector_status_disconnected;
 862         }
 863 
 864         encoder = amdgpu_connector_best_single_encoder(connector);
 865         if (!encoder)
 866                 ret = connector_status_disconnected;
 867 
 868         if (amdgpu_connector->ddc_bus)
 869                 dret = amdgpu_display_ddc_probe(amdgpu_connector, false);
 870         if (dret) {
 871                 amdgpu_connector->detected_by_load = false;
 872                 amdgpu_connector_free_edid(connector);
 873                 amdgpu_connector_get_edid(connector);
 874 
 875                 if (!amdgpu_connector->edid) {
 876                         DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
 877                                         connector->name);
 878                         ret = connector_status_connected;
 879                 } else {
 880                         amdgpu_connector->use_digital =
 881                                 !!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
 882 
 883                         /* some oems have boards with separate digital and analog connectors
 884                          * with a shared ddc line (often vga + hdmi)
 885                          */
 886                         if (amdgpu_connector->use_digital && amdgpu_connector->shared_ddc) {
 887                                 amdgpu_connector_free_edid(connector);
 888                                 ret = connector_status_disconnected;
 889                         } else {
 890                                 ret = connector_status_connected;
 891                         }
 892                 }
 893         } else {
 894 
 895                 /* if we aren't forcing don't do destructive polling */
 896                 if (!force) {
 897                         /* only return the previous status if we last
 898                          * detected a monitor via load.
 899                          */
 900                         if (amdgpu_connector->detected_by_load)
 901                                 ret = connector->status;
 902                         goto out;
 903                 }
 904 
 905                 if (amdgpu_connector->dac_load_detect && encoder) {
 906                         encoder_funcs = encoder->helper_private;
 907                         ret = encoder_funcs->detect(encoder, connector);
 908                         if (ret != connector_status_disconnected)
 909                                 amdgpu_connector->detected_by_load = true;
 910                 }
 911         }
 912 
 913         amdgpu_connector_update_scratch_regs(connector, ret);
 914 
 915 out:
 916         if (!drm_kms_helper_is_poll_worker()) {
 917                 pm_runtime_mark_last_busy(connector->dev->dev);
 918                 pm_runtime_put_autosuspend(connector->dev->dev);
 919         }
 920 
 921         return ret;
 922 }
 923 
 924 static const struct drm_connector_helper_funcs amdgpu_connector_vga_helper_funcs = {
 925         .get_modes = amdgpu_connector_vga_get_modes,
 926         .mode_valid = amdgpu_connector_vga_mode_valid,
 927         .best_encoder = amdgpu_connector_best_single_encoder,
 928 };
 929 
 930 static const struct drm_connector_funcs amdgpu_connector_vga_funcs = {
 931         .dpms = drm_helper_connector_dpms,
 932         .detect = amdgpu_connector_vga_detect,
 933         .fill_modes = drm_helper_probe_single_connector_modes,
 934         .early_unregister = amdgpu_connector_unregister,
 935         .destroy = amdgpu_connector_destroy,
 936         .set_property = amdgpu_connector_set_property,
 937 };
 938 
 939 static bool
 940 amdgpu_connector_check_hpd_status_unchanged(struct drm_connector *connector)
 941 {
 942         struct drm_device *dev = connector->dev;
 943         struct amdgpu_device *adev = dev->dev_private;
 944         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 945         enum drm_connector_status status;
 946 
 947         if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) {
 948                 if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd))
 949                         status = connector_status_connected;
 950                 else
 951                         status = connector_status_disconnected;
 952                 if (connector->status == status)
 953                         return true;
 954         }
 955 
 956         return false;
 957 }
 958 
 959 /*
 960  * DVI is complicated
 961  * Do a DDC probe, if DDC probe passes, get the full EDID so
 962  * we can do analog/digital monitor detection at this point.
 963  * If the monitor is an analog monitor or we got no DDC,
 964  * we need to find the DAC encoder object for this connector.
 965  * If we got no DDC, we do load detection on the DAC encoder object.
 966  * If we got analog DDC or load detection passes on the DAC encoder
 967  * we have to check if this analog encoder is shared with anyone else (TV)
 968  * if its shared we have to set the other connector to disconnected.
 969  */
 970 static enum drm_connector_status
 971 amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force)
 972 {
 973         struct drm_device *dev = connector->dev;
 974         struct amdgpu_device *adev = dev->dev_private;
 975         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 976         const struct drm_encoder_helper_funcs *encoder_funcs;
 977         int r;
 978         enum drm_connector_status ret = connector_status_disconnected;
 979         bool dret = false, broken_edid = false;
 980 
 981         if (!drm_kms_helper_is_poll_worker()) {
 982                 r = pm_runtime_get_sync(connector->dev->dev);
 983                 if (r < 0)
 984                         return connector_status_disconnected;
 985         }
 986 
 987         if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
 988                 ret = connector->status;
 989                 goto exit;
 990         }
 991 
 992         if (amdgpu_connector->ddc_bus)
 993                 dret = amdgpu_display_ddc_probe(amdgpu_connector, false);
 994         if (dret) {
 995                 amdgpu_connector->detected_by_load = false;
 996                 amdgpu_connector_free_edid(connector);
 997                 amdgpu_connector_get_edid(connector);
 998 
 999                 if (!amdgpu_connector->edid) {
1000                         DRM_ERROR("%s: probed a monitor but no|invalid EDID\n",
1001                                         connector->name);
1002                         ret = connector_status_connected;
1003                         broken_edid = true; /* defer use_digital to later */
1004                 } else {
1005                         amdgpu_connector->use_digital =
1006                                 !!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL);
1007 
1008                         /* some oems have boards with separate digital and analog connectors
1009                          * with a shared ddc line (often vga + hdmi)
1010                          */
1011                         if ((!amdgpu_connector->use_digital) && amdgpu_connector->shared_ddc) {
1012                                 amdgpu_connector_free_edid(connector);
1013                                 ret = connector_status_disconnected;
1014                         } else {
1015                                 ret = connector_status_connected;
1016                         }
1017 
1018                         /* This gets complicated.  We have boards with VGA + HDMI with a
1019                          * shared DDC line and we have boards with DVI-D + HDMI with a shared
1020                          * DDC line.  The latter is more complex because with DVI<->HDMI adapters
1021                          * you don't really know what's connected to which port as both are digital.
1022                          */
1023                         if (amdgpu_connector->shared_ddc && (ret == connector_status_connected)) {
1024                                 struct drm_connector *list_connector;
1025                                 struct amdgpu_connector *list_amdgpu_connector;
1026                                 list_for_each_entry(list_connector, &dev->mode_config.connector_list, head) {
1027                                         if (connector == list_connector)
1028                                                 continue;
1029                                         list_amdgpu_connector = to_amdgpu_connector(list_connector);
1030                                         if (list_amdgpu_connector->shared_ddc &&
1031                                             (list_amdgpu_connector->ddc_bus->rec.i2c_id ==
1032                                              amdgpu_connector->ddc_bus->rec.i2c_id)) {
1033                                                 /* cases where both connectors are digital */
1034                                                 if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) {
1035                                                         /* hpd is our only option in this case */
1036                                                         if (!amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) {
1037                                                                 amdgpu_connector_free_edid(connector);
1038                                                                 ret = connector_status_disconnected;
1039                                                         }
1040                                                 }
1041                                         }
1042                                 }
1043                         }
1044                 }
1045         }
1046 
1047         if ((ret == connector_status_connected) && (amdgpu_connector->use_digital == true))
1048                 goto out;
1049 
1050         /* DVI-D and HDMI-A are digital only */
1051         if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
1052             (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
1053                 goto out;
1054 
1055         /* if we aren't forcing don't do destructive polling */
1056         if (!force) {
1057                 /* only return the previous status if we last
1058                  * detected a monitor via load.
1059                  */
1060                 if (amdgpu_connector->detected_by_load)
1061                         ret = connector->status;
1062                 goto out;
1063         }
1064 
1065         /* find analog encoder */
1066         if (amdgpu_connector->dac_load_detect) {
1067                 struct drm_encoder *encoder;
1068                 int i;
1069 
1070                 drm_connector_for_each_possible_encoder(connector, encoder, i) {
1071                         if (encoder->encoder_type != DRM_MODE_ENCODER_DAC &&
1072                             encoder->encoder_type != DRM_MODE_ENCODER_TVDAC)
1073                                 continue;
1074 
1075                         encoder_funcs = encoder->helper_private;
1076                         if (encoder_funcs->detect) {
1077                                 if (!broken_edid) {
1078                                         if (ret != connector_status_connected) {
1079                                                 /* deal with analog monitors without DDC */
1080                                                 ret = encoder_funcs->detect(encoder, connector);
1081                                                 if (ret == connector_status_connected) {
1082                                                         amdgpu_connector->use_digital = false;
1083                                                 }
1084                                                 if (ret != connector_status_disconnected)
1085                                                         amdgpu_connector->detected_by_load = true;
1086                                         }
1087                                 } else {
1088                                         enum drm_connector_status lret;
1089                                         /* assume digital unless load detected otherwise */
1090                                         amdgpu_connector->use_digital = true;
1091                                         lret = encoder_funcs->detect(encoder, connector);
1092                                         DRM_DEBUG_KMS("load_detect %x returned: %x\n",encoder->encoder_type,lret);
1093                                         if (lret == connector_status_connected)
1094                                                 amdgpu_connector->use_digital = false;
1095                                 }
1096                                 break;
1097                         }
1098                 }
1099         }
1100 
1101 out:
1102         /* updated in get modes as well since we need to know if it's analog or digital */
1103         amdgpu_connector_update_scratch_regs(connector, ret);
1104 
1105 exit:
1106         if (!drm_kms_helper_is_poll_worker()) {
1107                 pm_runtime_mark_last_busy(connector->dev->dev);
1108                 pm_runtime_put_autosuspend(connector->dev->dev);
1109         }
1110 
1111         return ret;
1112 }
1113 
1114 /* okay need to be smart in here about which encoder to pick */
1115 static struct drm_encoder *
1116 amdgpu_connector_dvi_encoder(struct drm_connector *connector)
1117 {
1118         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1119         struct drm_encoder *encoder;
1120         int i;
1121 
1122         drm_connector_for_each_possible_encoder(connector, encoder, i) {
1123                 if (amdgpu_connector->use_digital == true) {
1124                         if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS)
1125                                 return encoder;
1126                 } else {
1127                         if (encoder->encoder_type == DRM_MODE_ENCODER_DAC ||
1128                             encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
1129                                 return encoder;
1130                 }
1131         }
1132 
1133         /* see if we have a default encoder  TODO */
1134 
1135         /* then check use digitial */
1136         /* pick the first one */
1137         drm_connector_for_each_possible_encoder(connector, encoder, i)
1138                 return encoder;
1139 
1140         return NULL;
1141 }
1142 
1143 static void amdgpu_connector_dvi_force(struct drm_connector *connector)
1144 {
1145         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1146         if (connector->force == DRM_FORCE_ON)
1147                 amdgpu_connector->use_digital = false;
1148         if (connector->force == DRM_FORCE_ON_DIGITAL)
1149                 amdgpu_connector->use_digital = true;
1150 }
1151 
1152 static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector *connector,
1153                                             struct drm_display_mode *mode)
1154 {
1155         struct drm_device *dev = connector->dev;
1156         struct amdgpu_device *adev = dev->dev_private;
1157         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1158 
1159         /* XXX check mode bandwidth */
1160 
1161         if (amdgpu_connector->use_digital && (mode->clock > 165000)) {
1162                 if ((amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I) ||
1163                     (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
1164                     (amdgpu_connector->connector_object_id == CONNECTOR_OBJECT_ID_HDMI_TYPE_B)) {
1165                         return MODE_OK;
1166                 } else if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
1167                         /* HDMI 1.3+ supports max clock of 340 Mhz */
1168                         if (mode->clock > 340000)
1169                                 return MODE_CLOCK_HIGH;
1170                         else
1171                                 return MODE_OK;
1172                 } else {
1173                         return MODE_CLOCK_HIGH;
1174                 }
1175         }
1176 
1177         /* check against the max pixel clock */
1178         if ((mode->clock / 10) > adev->clock.max_pixel_clock)
1179                 return MODE_CLOCK_HIGH;
1180 
1181         return MODE_OK;
1182 }
1183 
1184 static const struct drm_connector_helper_funcs amdgpu_connector_dvi_helper_funcs = {
1185         .get_modes = amdgpu_connector_vga_get_modes,
1186         .mode_valid = amdgpu_connector_dvi_mode_valid,
1187         .best_encoder = amdgpu_connector_dvi_encoder,
1188 };
1189 
1190 static const struct drm_connector_funcs amdgpu_connector_dvi_funcs = {
1191         .dpms = drm_helper_connector_dpms,
1192         .detect = amdgpu_connector_dvi_detect,
1193         .fill_modes = drm_helper_probe_single_connector_modes,
1194         .set_property = amdgpu_connector_set_property,
1195         .early_unregister = amdgpu_connector_unregister,
1196         .destroy = amdgpu_connector_destroy,
1197         .force = amdgpu_connector_dvi_force,
1198 };
1199 
1200 static int amdgpu_connector_dp_get_modes(struct drm_connector *connector)
1201 {
1202         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1203         struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1204         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1205         int ret;
1206 
1207         if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1208             (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1209                 struct drm_display_mode *mode;
1210 
1211                 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
1212                         if (!amdgpu_dig_connector->edp_on)
1213                                 amdgpu_atombios_encoder_set_edp_panel_power(connector,
1214                                                                      ATOM_TRANSMITTER_ACTION_POWER_ON);
1215                         amdgpu_connector_get_edid(connector);
1216                         ret = amdgpu_connector_ddc_get_modes(connector);
1217                         if (!amdgpu_dig_connector->edp_on)
1218                                 amdgpu_atombios_encoder_set_edp_panel_power(connector,
1219                                                                      ATOM_TRANSMITTER_ACTION_POWER_OFF);
1220                 } else {
1221                         /* need to setup ddc on the bridge */
1222                         if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1223                             ENCODER_OBJECT_ID_NONE) {
1224                                 if (encoder)
1225                                         amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1226                         }
1227                         amdgpu_connector_get_edid(connector);
1228                         ret = amdgpu_connector_ddc_get_modes(connector);
1229                 }
1230 
1231                 if (ret > 0) {
1232                         if (encoder) {
1233                                 amdgpu_connector_fixup_lcd_native_mode(encoder, connector);
1234                                 /* add scaled modes */
1235                                 amdgpu_connector_add_common_modes(encoder, connector);
1236                         }
1237                         return ret;
1238                 }
1239 
1240                 if (!encoder)
1241                         return 0;
1242 
1243                 /* we have no EDID modes */
1244                 mode = amdgpu_connector_lcd_native_mode(encoder);
1245                 if (mode) {
1246                         ret = 1;
1247                         drm_mode_probed_add(connector, mode);
1248                         /* add the width/height from vbios tables if available */
1249                         connector->display_info.width_mm = mode->width_mm;
1250                         connector->display_info.height_mm = mode->height_mm;
1251                         /* add scaled modes */
1252                         amdgpu_connector_add_common_modes(encoder, connector);
1253                 }
1254         } else {
1255                 /* need to setup ddc on the bridge */
1256                 if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1257                         ENCODER_OBJECT_ID_NONE) {
1258                         if (encoder)
1259                                 amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1260                 }
1261                 amdgpu_connector_get_edid(connector);
1262                 ret = amdgpu_connector_ddc_get_modes(connector);
1263 
1264                 amdgpu_get_native_mode(connector);
1265         }
1266 
1267         return ret;
1268 }
1269 
1270 u16 amdgpu_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector)
1271 {
1272         struct drm_encoder *encoder;
1273         struct amdgpu_encoder *amdgpu_encoder;
1274         int i;
1275 
1276         drm_connector_for_each_possible_encoder(connector, encoder, i) {
1277                 amdgpu_encoder = to_amdgpu_encoder(encoder);
1278 
1279                 switch (amdgpu_encoder->encoder_id) {
1280                 case ENCODER_OBJECT_ID_TRAVIS:
1281                 case ENCODER_OBJECT_ID_NUTMEG:
1282                         return amdgpu_encoder->encoder_id;
1283                 default:
1284                         break;
1285                 }
1286         }
1287 
1288         return ENCODER_OBJECT_ID_NONE;
1289 }
1290 
1291 static bool amdgpu_connector_encoder_is_hbr2(struct drm_connector *connector)
1292 {
1293         struct drm_encoder *encoder;
1294         struct amdgpu_encoder *amdgpu_encoder;
1295         int i;
1296         bool found = false;
1297 
1298         drm_connector_for_each_possible_encoder(connector, encoder, i) {
1299                 amdgpu_encoder = to_amdgpu_encoder(encoder);
1300                 if (amdgpu_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2)
1301                         found = true;
1302         }
1303 
1304         return found;
1305 }
1306 
1307 bool amdgpu_connector_is_dp12_capable(struct drm_connector *connector)
1308 {
1309         struct drm_device *dev = connector->dev;
1310         struct amdgpu_device *adev = dev->dev_private;
1311 
1312         if ((adev->clock.default_dispclk >= 53900) &&
1313             amdgpu_connector_encoder_is_hbr2(connector)) {
1314                 return true;
1315         }
1316 
1317         return false;
1318 }
1319 
1320 static enum drm_connector_status
1321 amdgpu_connector_dp_detect(struct drm_connector *connector, bool force)
1322 {
1323         struct drm_device *dev = connector->dev;
1324         struct amdgpu_device *adev = dev->dev_private;
1325         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1326         enum drm_connector_status ret = connector_status_disconnected;
1327         struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1328         struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1329         int r;
1330 
1331         if (!drm_kms_helper_is_poll_worker()) {
1332                 r = pm_runtime_get_sync(connector->dev->dev);
1333                 if (r < 0)
1334                         return connector_status_disconnected;
1335         }
1336 
1337         if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) {
1338                 ret = connector->status;
1339                 goto out;
1340         }
1341 
1342         amdgpu_connector_free_edid(connector);
1343 
1344         if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1345             (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1346                 if (encoder) {
1347                         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1348                         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
1349 
1350                         /* check if panel is valid */
1351                         if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240)
1352                                 ret = connector_status_connected;
1353                 }
1354                 /* eDP is always DP */
1355                 amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1356                 if (!amdgpu_dig_connector->edp_on)
1357                         amdgpu_atombios_encoder_set_edp_panel_power(connector,
1358                                                              ATOM_TRANSMITTER_ACTION_POWER_ON);
1359                 if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
1360                         ret = connector_status_connected;
1361                 if (!amdgpu_dig_connector->edp_on)
1362                         amdgpu_atombios_encoder_set_edp_panel_power(connector,
1363                                                              ATOM_TRANSMITTER_ACTION_POWER_OFF);
1364         } else if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) !=
1365                    ENCODER_OBJECT_ID_NONE) {
1366                 /* DP bridges are always DP */
1367                 amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT;
1368                 /* get the DPCD from the bridge */
1369                 amdgpu_atombios_dp_get_dpcd(amdgpu_connector);
1370 
1371                 if (encoder) {
1372                         /* setup ddc on the bridge */
1373                         amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder);
1374                         /* bridge chips are always aux */
1375                         /* try DDC */
1376                         if (amdgpu_display_ddc_probe(amdgpu_connector, true))
1377                                 ret = connector_status_connected;
1378                         else if (amdgpu_connector->dac_load_detect) { /* try load detection */
1379                                 const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
1380                                 ret = encoder_funcs->detect(encoder, connector);
1381                         }
1382                 }
1383         } else {
1384                 amdgpu_dig_connector->dp_sink_type =
1385                         amdgpu_atombios_dp_get_sinktype(amdgpu_connector);
1386                 if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) {
1387                         ret = connector_status_connected;
1388                         if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
1389                                 amdgpu_atombios_dp_get_dpcd(amdgpu_connector);
1390                 } else {
1391                         if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
1392                                 if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector))
1393                                         ret = connector_status_connected;
1394                         } else {
1395                                 /* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */
1396                                 if (amdgpu_display_ddc_probe(amdgpu_connector,
1397                                                              false))
1398                                         ret = connector_status_connected;
1399                         }
1400                 }
1401         }
1402 
1403         amdgpu_connector_update_scratch_regs(connector, ret);
1404 out:
1405         if (!drm_kms_helper_is_poll_worker()) {
1406                 pm_runtime_mark_last_busy(connector->dev->dev);
1407                 pm_runtime_put_autosuspend(connector->dev->dev);
1408         }
1409 
1410         return ret;
1411 }
1412 
1413 static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector *connector,
1414                                            struct drm_display_mode *mode)
1415 {
1416         struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
1417         struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv;
1418 
1419         /* XXX check mode bandwidth */
1420 
1421         if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) ||
1422             (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) {
1423                 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector);
1424 
1425                 if ((mode->hdisplay < 320) || (mode->vdisplay < 240))
1426                         return MODE_PANEL;
1427 
1428                 if (encoder) {
1429                         struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder);
1430                         struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode;
1431 
1432                         /* AVIVO hardware supports downscaling modes larger than the panel
1433                          * to the panel size, but I'm not sure this is desirable.
1434                          */
1435                         if ((mode->hdisplay > native_mode->hdisplay) ||
1436                             (mode->vdisplay > native_mode->vdisplay))
1437                                 return MODE_PANEL;
1438 
1439                         /* if scaling is disabled, block non-native modes */
1440                         if (amdgpu_encoder->rmx_type == RMX_OFF) {
1441                                 if ((mode->hdisplay != native_mode->hdisplay) ||
1442                                     (mode->vdisplay != native_mode->vdisplay))
1443                                         return MODE_PANEL;
1444                         }
1445                 }
1446                 return MODE_OK;
1447         } else {
1448                 if ((amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
1449                     (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
1450                         return amdgpu_atombios_dp_mode_valid_helper(connector, mode);
1451                 } else {
1452                         if (drm_detect_hdmi_monitor(amdgpu_connector_edid(connector))) {
1453                                 /* HDMI 1.3+ supports max clock of 340 Mhz */
1454                                 if (mode->clock > 340000)
1455                                         return MODE_CLOCK_HIGH;
1456                         } else {
1457                                 if (mode->clock > 165000)
1458                                         return MODE_CLOCK_HIGH;
1459                         }
1460                 }
1461         }
1462 
1463         return MODE_OK;
1464 }
1465 
1466 static const struct drm_connector_helper_funcs amdgpu_connector_dp_helper_funcs = {
1467         .get_modes = amdgpu_connector_dp_get_modes,
1468         .mode_valid = amdgpu_connector_dp_mode_valid,
1469         .best_encoder = amdgpu_connector_dvi_encoder,
1470 };
1471 
1472 static const struct drm_connector_funcs amdgpu_connector_dp_funcs = {
1473         .dpms = drm_helper_connector_dpms,
1474         .detect = amdgpu_connector_dp_detect,
1475         .fill_modes = drm_helper_probe_single_connector_modes,
1476         .set_property = amdgpu_connector_set_property,
1477         .early_unregister = amdgpu_connector_unregister,
1478         .destroy = amdgpu_connector_destroy,
1479         .force = amdgpu_connector_dvi_force,
1480 };
1481 
1482 static const struct drm_connector_funcs amdgpu_connector_edp_funcs = {
1483         .dpms = drm_helper_connector_dpms,
1484         .detect = amdgpu_connector_dp_detect,
1485         .fill_modes = drm_helper_probe_single_connector_modes,
1486         .set_property = amdgpu_connector_set_lcd_property,
1487         .early_unregister = amdgpu_connector_unregister,
1488         .destroy = amdgpu_connector_destroy,
1489         .force = amdgpu_connector_dvi_force,
1490 };
1491 
1492 void
1493 amdgpu_connector_add(struct amdgpu_device *adev,
1494                       uint32_t connector_id,
1495                       uint32_t supported_device,
1496                       int connector_type,
1497                       struct amdgpu_i2c_bus_rec *i2c_bus,
1498                       uint16_t connector_object_id,
1499                       struct amdgpu_hpd *hpd,
1500                       struct amdgpu_router *router)
1501 {
1502         struct drm_device *dev = adev->ddev;
1503         struct drm_connector *connector;
1504         struct amdgpu_connector *amdgpu_connector;
1505         struct amdgpu_connector_atom_dig *amdgpu_dig_connector;
1506         struct drm_encoder *encoder;
1507         struct amdgpu_encoder *amdgpu_encoder;
1508         struct i2c_adapter *ddc = NULL;
1509         uint32_t subpixel_order = SubPixelNone;
1510         bool shared_ddc = false;
1511         bool is_dp_bridge = false;
1512         bool has_aux = false;
1513 
1514         if (connector_type == DRM_MODE_CONNECTOR_Unknown)
1515                 return;
1516 
1517         /* see if we already added it */
1518         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1519                 amdgpu_connector = to_amdgpu_connector(connector);
1520                 if (amdgpu_connector->connector_id == connector_id) {
1521                         amdgpu_connector->devices |= supported_device;
1522                         return;
1523                 }
1524                 if (amdgpu_connector->ddc_bus && i2c_bus->valid) {
1525                         if (amdgpu_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
1526                                 amdgpu_connector->shared_ddc = true;
1527                                 shared_ddc = true;
1528                         }
1529                         if (amdgpu_connector->router_bus && router->ddc_valid &&
1530                             (amdgpu_connector->router.router_id == router->router_id)) {
1531                                 amdgpu_connector->shared_ddc = false;
1532                                 shared_ddc = false;
1533                         }
1534                 }
1535         }
1536 
1537         /* check if it's a dp bridge */
1538         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
1539                 amdgpu_encoder = to_amdgpu_encoder(encoder);
1540                 if (amdgpu_encoder->devices & supported_device) {
1541                         switch (amdgpu_encoder->encoder_id) {
1542                         case ENCODER_OBJECT_ID_TRAVIS:
1543                         case ENCODER_OBJECT_ID_NUTMEG:
1544                                 is_dp_bridge = true;
1545                                 break;
1546                         default:
1547                                 break;
1548                         }
1549                 }
1550         }
1551 
1552         amdgpu_connector = kzalloc(sizeof(struct amdgpu_connector), GFP_KERNEL);
1553         if (!amdgpu_connector)
1554                 return;
1555 
1556         connector = &amdgpu_connector->base;
1557 
1558         amdgpu_connector->connector_id = connector_id;
1559         amdgpu_connector->devices = supported_device;
1560         amdgpu_connector->shared_ddc = shared_ddc;
1561         amdgpu_connector->connector_object_id = connector_object_id;
1562         amdgpu_connector->hpd = *hpd;
1563 
1564         amdgpu_connector->router = *router;
1565         if (router->ddc_valid || router->cd_valid) {
1566                 amdgpu_connector->router_bus = amdgpu_i2c_lookup(adev, &router->i2c_info);
1567                 if (!amdgpu_connector->router_bus)
1568                         DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n");
1569         }
1570 
1571         if (is_dp_bridge) {
1572                 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1573                 if (!amdgpu_dig_connector)
1574                         goto failed;
1575                 amdgpu_connector->con_priv = amdgpu_dig_connector;
1576                 if (i2c_bus->valid) {
1577                         amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1578                         if (amdgpu_connector->ddc_bus) {
1579                                 has_aux = true;
1580                                 ddc = &amdgpu_connector->ddc_bus->adapter;
1581                         } else {
1582                                 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1583                         }
1584                 }
1585                 switch (connector_type) {
1586                 case DRM_MODE_CONNECTOR_VGA:
1587                 case DRM_MODE_CONNECTOR_DVIA:
1588                 default:
1589                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1590                                                     &amdgpu_connector_dp_funcs,
1591                                                     connector_type,
1592                                                     ddc);
1593                         drm_connector_helper_add(&amdgpu_connector->base,
1594                                                  &amdgpu_connector_dp_helper_funcs);
1595                         connector->interlace_allowed = true;
1596                         connector->doublescan_allowed = true;
1597                         amdgpu_connector->dac_load_detect = true;
1598                         drm_object_attach_property(&amdgpu_connector->base.base,
1599                                                       adev->mode_info.load_detect_property,
1600                                                       1);
1601                         drm_object_attach_property(&amdgpu_connector->base.base,
1602                                                    dev->mode_config.scaling_mode_property,
1603                                                    DRM_MODE_SCALE_NONE);
1604                         break;
1605                 case DRM_MODE_CONNECTOR_DVII:
1606                 case DRM_MODE_CONNECTOR_DVID:
1607                 case DRM_MODE_CONNECTOR_HDMIA:
1608                 case DRM_MODE_CONNECTOR_HDMIB:
1609                 case DRM_MODE_CONNECTOR_DisplayPort:
1610                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1611                                                     &amdgpu_connector_dp_funcs,
1612                                                     connector_type,
1613                                                     ddc);
1614                         drm_connector_helper_add(&amdgpu_connector->base,
1615                                                  &amdgpu_connector_dp_helper_funcs);
1616                         drm_object_attach_property(&amdgpu_connector->base.base,
1617                                                       adev->mode_info.underscan_property,
1618                                                       UNDERSCAN_OFF);
1619                         drm_object_attach_property(&amdgpu_connector->base.base,
1620                                                       adev->mode_info.underscan_hborder_property,
1621                                                       0);
1622                         drm_object_attach_property(&amdgpu_connector->base.base,
1623                                                       adev->mode_info.underscan_vborder_property,
1624                                                       0);
1625 
1626                         drm_object_attach_property(&amdgpu_connector->base.base,
1627                                                    dev->mode_config.scaling_mode_property,
1628                                                    DRM_MODE_SCALE_NONE);
1629 
1630                         drm_object_attach_property(&amdgpu_connector->base.base,
1631                                                    adev->mode_info.dither_property,
1632                                                    AMDGPU_FMT_DITHER_DISABLE);
1633 
1634                         if (amdgpu_audio != 0)
1635                                 drm_object_attach_property(&amdgpu_connector->base.base,
1636                                                            adev->mode_info.audio_property,
1637                                                            AMDGPU_AUDIO_AUTO);
1638 
1639                         subpixel_order = SubPixelHorizontalRGB;
1640                         connector->interlace_allowed = true;
1641                         if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1642                                 connector->doublescan_allowed = true;
1643                         else
1644                                 connector->doublescan_allowed = false;
1645                         if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1646                                 amdgpu_connector->dac_load_detect = true;
1647                                 drm_object_attach_property(&amdgpu_connector->base.base,
1648                                                               adev->mode_info.load_detect_property,
1649                                                               1);
1650                         }
1651                         break;
1652                 case DRM_MODE_CONNECTOR_LVDS:
1653                 case DRM_MODE_CONNECTOR_eDP:
1654                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1655                                                     &amdgpu_connector_edp_funcs,
1656                                                     connector_type,
1657                                                     ddc);
1658                         drm_connector_helper_add(&amdgpu_connector->base,
1659                                                  &amdgpu_connector_dp_helper_funcs);
1660                         drm_object_attach_property(&amdgpu_connector->base.base,
1661                                                       dev->mode_config.scaling_mode_property,
1662                                                       DRM_MODE_SCALE_FULLSCREEN);
1663                         subpixel_order = SubPixelHorizontalRGB;
1664                         connector->interlace_allowed = false;
1665                         connector->doublescan_allowed = false;
1666                         break;
1667                 }
1668         } else {
1669                 switch (connector_type) {
1670                 case DRM_MODE_CONNECTOR_VGA:
1671                         if (i2c_bus->valid) {
1672                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1673                                 if (!amdgpu_connector->ddc_bus)
1674                                         DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1675                                 else
1676                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1677                         }
1678                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1679                                                     &amdgpu_connector_vga_funcs,
1680                                                     connector_type,
1681                                                     ddc);
1682                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs);
1683                         amdgpu_connector->dac_load_detect = true;
1684                         drm_object_attach_property(&amdgpu_connector->base.base,
1685                                                       adev->mode_info.load_detect_property,
1686                                                       1);
1687                         drm_object_attach_property(&amdgpu_connector->base.base,
1688                                                    dev->mode_config.scaling_mode_property,
1689                                                    DRM_MODE_SCALE_NONE);
1690                         /* no HPD on analog connectors */
1691                         amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE;
1692                         connector->interlace_allowed = true;
1693                         connector->doublescan_allowed = true;
1694                         break;
1695                 case DRM_MODE_CONNECTOR_DVIA:
1696                         if (i2c_bus->valid) {
1697                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1698                                 if (!amdgpu_connector->ddc_bus)
1699                                         DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1700                                 else
1701                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1702                         }
1703                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1704                                                     &amdgpu_connector_vga_funcs,
1705                                                     connector_type,
1706                                                     ddc);
1707                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs);
1708                         amdgpu_connector->dac_load_detect = true;
1709                         drm_object_attach_property(&amdgpu_connector->base.base,
1710                                                       adev->mode_info.load_detect_property,
1711                                                       1);
1712                         drm_object_attach_property(&amdgpu_connector->base.base,
1713                                                    dev->mode_config.scaling_mode_property,
1714                                                    DRM_MODE_SCALE_NONE);
1715                         /* no HPD on analog connectors */
1716                         amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE;
1717                         connector->interlace_allowed = true;
1718                         connector->doublescan_allowed = true;
1719                         break;
1720                 case DRM_MODE_CONNECTOR_DVII:
1721                 case DRM_MODE_CONNECTOR_DVID:
1722                         amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1723                         if (!amdgpu_dig_connector)
1724                                 goto failed;
1725                         amdgpu_connector->con_priv = amdgpu_dig_connector;
1726                         if (i2c_bus->valid) {
1727                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1728                                 if (!amdgpu_connector->ddc_bus)
1729                                         DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1730                                 else
1731                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1732                         }
1733                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1734                                                     &amdgpu_connector_dvi_funcs,
1735                                                     connector_type,
1736                                                     ddc);
1737                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs);
1738                         subpixel_order = SubPixelHorizontalRGB;
1739                         drm_object_attach_property(&amdgpu_connector->base.base,
1740                                                       adev->mode_info.coherent_mode_property,
1741                                                       1);
1742                         drm_object_attach_property(&amdgpu_connector->base.base,
1743                                                    adev->mode_info.underscan_property,
1744                                                    UNDERSCAN_OFF);
1745                         drm_object_attach_property(&amdgpu_connector->base.base,
1746                                                    adev->mode_info.underscan_hborder_property,
1747                                                    0);
1748                         drm_object_attach_property(&amdgpu_connector->base.base,
1749                                                    adev->mode_info.underscan_vborder_property,
1750                                                    0);
1751                         drm_object_attach_property(&amdgpu_connector->base.base,
1752                                                    dev->mode_config.scaling_mode_property,
1753                                                    DRM_MODE_SCALE_NONE);
1754 
1755                         if (amdgpu_audio != 0) {
1756                                 drm_object_attach_property(&amdgpu_connector->base.base,
1757                                                            adev->mode_info.audio_property,
1758                                                            AMDGPU_AUDIO_AUTO);
1759                         }
1760                         drm_object_attach_property(&amdgpu_connector->base.base,
1761                                                    adev->mode_info.dither_property,
1762                                                    AMDGPU_FMT_DITHER_DISABLE);
1763                         if (connector_type == DRM_MODE_CONNECTOR_DVII) {
1764                                 amdgpu_connector->dac_load_detect = true;
1765                                 drm_object_attach_property(&amdgpu_connector->base.base,
1766                                                            adev->mode_info.load_detect_property,
1767                                                            1);
1768                         }
1769                         connector->interlace_allowed = true;
1770                         if (connector_type == DRM_MODE_CONNECTOR_DVII)
1771                                 connector->doublescan_allowed = true;
1772                         else
1773                                 connector->doublescan_allowed = false;
1774                         break;
1775                 case DRM_MODE_CONNECTOR_HDMIA:
1776                 case DRM_MODE_CONNECTOR_HDMIB:
1777                         amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1778                         if (!amdgpu_dig_connector)
1779                                 goto failed;
1780                         amdgpu_connector->con_priv = amdgpu_dig_connector;
1781                         if (i2c_bus->valid) {
1782                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1783                                 if (!amdgpu_connector->ddc_bus)
1784                                         DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1785                                 else
1786                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1787                         }
1788                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1789                                                     &amdgpu_connector_dvi_funcs,
1790                                                     connector_type,
1791                                                     ddc);
1792                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs);
1793                         drm_object_attach_property(&amdgpu_connector->base.base,
1794                                                       adev->mode_info.coherent_mode_property,
1795                                                       1);
1796                         drm_object_attach_property(&amdgpu_connector->base.base,
1797                                                    adev->mode_info.underscan_property,
1798                                                    UNDERSCAN_OFF);
1799                         drm_object_attach_property(&amdgpu_connector->base.base,
1800                                                    adev->mode_info.underscan_hborder_property,
1801                                                    0);
1802                         drm_object_attach_property(&amdgpu_connector->base.base,
1803                                                    adev->mode_info.underscan_vborder_property,
1804                                                    0);
1805                         drm_object_attach_property(&amdgpu_connector->base.base,
1806                                                    dev->mode_config.scaling_mode_property,
1807                                                    DRM_MODE_SCALE_NONE);
1808                         if (amdgpu_audio != 0) {
1809                                 drm_object_attach_property(&amdgpu_connector->base.base,
1810                                                            adev->mode_info.audio_property,
1811                                                            AMDGPU_AUDIO_AUTO);
1812                         }
1813                         drm_object_attach_property(&amdgpu_connector->base.base,
1814                                                    adev->mode_info.dither_property,
1815                                                    AMDGPU_FMT_DITHER_DISABLE);
1816                         subpixel_order = SubPixelHorizontalRGB;
1817                         connector->interlace_allowed = true;
1818                         if (connector_type == DRM_MODE_CONNECTOR_HDMIB)
1819                                 connector->doublescan_allowed = true;
1820                         else
1821                                 connector->doublescan_allowed = false;
1822                         break;
1823                 case DRM_MODE_CONNECTOR_DisplayPort:
1824                         amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1825                         if (!amdgpu_dig_connector)
1826                                 goto failed;
1827                         amdgpu_connector->con_priv = amdgpu_dig_connector;
1828                         if (i2c_bus->valid) {
1829                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1830                                 if (amdgpu_connector->ddc_bus) {
1831                                         has_aux = true;
1832                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1833                                 } else {
1834                                         DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1835                                 }
1836                         }
1837                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1838                                                     &amdgpu_connector_dp_funcs,
1839                                                     connector_type,
1840                                                     ddc);
1841                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs);
1842                         subpixel_order = SubPixelHorizontalRGB;
1843                         drm_object_attach_property(&amdgpu_connector->base.base,
1844                                                       adev->mode_info.coherent_mode_property,
1845                                                       1);
1846                         drm_object_attach_property(&amdgpu_connector->base.base,
1847                                                    adev->mode_info.underscan_property,
1848                                                    UNDERSCAN_OFF);
1849                         drm_object_attach_property(&amdgpu_connector->base.base,
1850                                                    adev->mode_info.underscan_hborder_property,
1851                                                    0);
1852                         drm_object_attach_property(&amdgpu_connector->base.base,
1853                                                    adev->mode_info.underscan_vborder_property,
1854                                                    0);
1855                         drm_object_attach_property(&amdgpu_connector->base.base,
1856                                                    dev->mode_config.scaling_mode_property,
1857                                                    DRM_MODE_SCALE_NONE);
1858                         if (amdgpu_audio != 0) {
1859                                 drm_object_attach_property(&amdgpu_connector->base.base,
1860                                                            adev->mode_info.audio_property,
1861                                                            AMDGPU_AUDIO_AUTO);
1862                         }
1863                         drm_object_attach_property(&amdgpu_connector->base.base,
1864                                                    adev->mode_info.dither_property,
1865                                                    AMDGPU_FMT_DITHER_DISABLE);
1866                         connector->interlace_allowed = true;
1867                         /* in theory with a DP to VGA converter... */
1868                         connector->doublescan_allowed = false;
1869                         break;
1870                 case DRM_MODE_CONNECTOR_eDP:
1871                         amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1872                         if (!amdgpu_dig_connector)
1873                                 goto failed;
1874                         amdgpu_connector->con_priv = amdgpu_dig_connector;
1875                         if (i2c_bus->valid) {
1876                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1877                                 if (amdgpu_connector->ddc_bus) {
1878                                         has_aux = true;
1879                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1880                                 } else {
1881                                         DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1882                                 }
1883                         }
1884                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1885                                                     &amdgpu_connector_edp_funcs,
1886                                                     connector_type,
1887                                                     ddc);
1888                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs);
1889                         drm_object_attach_property(&amdgpu_connector->base.base,
1890                                                       dev->mode_config.scaling_mode_property,
1891                                                       DRM_MODE_SCALE_FULLSCREEN);
1892                         subpixel_order = SubPixelHorizontalRGB;
1893                         connector->interlace_allowed = false;
1894                         connector->doublescan_allowed = false;
1895                         break;
1896                 case DRM_MODE_CONNECTOR_LVDS:
1897                         amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL);
1898                         if (!amdgpu_dig_connector)
1899                                 goto failed;
1900                         amdgpu_connector->con_priv = amdgpu_dig_connector;
1901                         if (i2c_bus->valid) {
1902                                 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus);
1903                                 if (!amdgpu_connector->ddc_bus)
1904                                         DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n");
1905                                 else
1906                                         ddc = &amdgpu_connector->ddc_bus->adapter;
1907                         }
1908                         drm_connector_init_with_ddc(dev, &amdgpu_connector->base,
1909                                                     &amdgpu_connector_lvds_funcs,
1910                                                     connector_type,
1911                                                     ddc);
1912                         drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_lvds_helper_funcs);
1913                         drm_object_attach_property(&amdgpu_connector->base.base,
1914                                                       dev->mode_config.scaling_mode_property,
1915                                                       DRM_MODE_SCALE_FULLSCREEN);
1916                         subpixel_order = SubPixelHorizontalRGB;
1917                         connector->interlace_allowed = false;
1918                         connector->doublescan_allowed = false;
1919                         break;
1920                 }
1921         }
1922 
1923         if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) {
1924                 if (i2c_bus->valid) {
1925                         connector->polled = DRM_CONNECTOR_POLL_CONNECT |
1926                                             DRM_CONNECTOR_POLL_DISCONNECT;
1927                 }
1928         } else
1929                 connector->polled = DRM_CONNECTOR_POLL_HPD;
1930 
1931         connector->display_info.subpixel_order = subpixel_order;
1932         drm_connector_register(connector);
1933 
1934         if (has_aux)
1935                 amdgpu_atombios_dp_aux_init(amdgpu_connector);
1936 
1937         return;
1938 
1939 failed:
1940         drm_connector_cleanup(connector);
1941         kfree(connector);
1942 }