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/display/drm_dp_helper.h> 28 #include <drm/drm_crtc_helper.h> 29 #include <drm/drm_edid.h> 30 #include <drm/drm_modeset_helper_vtables.h> 31 #include <drm/drm_probe_helper.h> 32 #include <drm/amdgpu_drm.h> 33 #include "amdgpu.h" 34 #include "atom.h" 35 #include "atombios_encoders.h" 36 #include "atombios_dp.h" 37 #include "amdgpu_connectors.h" 38 #include "amdgpu_i2c.h" 39 #include "amdgpu_display.h" 40 41 #include <linux/pm_runtime.h> 42 43 void amdgpu_connector_hotplug(struct drm_connector *connector) 44 { 45 struct drm_device *dev = connector->dev; 46 struct amdgpu_device *adev = drm_to_adev(dev); 47 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 48 49 /* bail if the connector does not have hpd pin, e.g., 50 * VGA, TV, etc. 51 */ 52 if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) 53 return; 54 55 amdgpu_display_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd); 56 57 /* if the connector is already off, don't turn it back on */ 58 if (connector->dpms != DRM_MODE_DPMS_ON) 59 return; 60 61 /* just deal with DP (not eDP) here. */ 62 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) { 63 struct amdgpu_connector_atom_dig *dig_connector = 64 amdgpu_connector->con_priv; 65 66 /* if existing sink type was not DP no need to retrain */ 67 if (dig_connector->dp_sink_type != CONNECTOR_OBJECT_ID_DISPLAYPORT) 68 return; 69 70 /* first get sink type as it may be reset after (un)plug */ 71 dig_connector->dp_sink_type = amdgpu_atombios_dp_get_sinktype(amdgpu_connector); 72 /* don't do anything if sink is not display port, i.e., 73 * passive dp->(dvi|hdmi) adaptor 74 */ 75 if (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT && 76 amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd) && 77 amdgpu_atombios_dp_needs_link_train(amdgpu_connector)) { 78 /* Don't start link training before we have the DPCD */ 79 if (amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) 80 return; 81 82 /* Turn the connector off and back on immediately, which 83 * will trigger link training 84 */ 85 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); 86 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); 87 } 88 } 89 } 90 91 static void amdgpu_connector_property_change_mode(struct drm_encoder *encoder) 92 { 93 struct drm_crtc *crtc = encoder->crtc; 94 95 if (crtc && crtc->enabled) { 96 drm_crtc_helper_set_mode(crtc, &crtc->mode, 97 crtc->x, crtc->y, crtc->primary->fb); 98 } 99 } 100 101 int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector) 102 { 103 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 104 struct amdgpu_connector_atom_dig *dig_connector; 105 int bpc = 8; 106 unsigned int mode_clock, max_tmds_clock; 107 108 switch (connector->connector_type) { 109 case DRM_MODE_CONNECTOR_DVII: 110 case DRM_MODE_CONNECTOR_HDMIB: 111 if (amdgpu_connector->use_digital) { 112 if (connector->display_info.is_hdmi) { 113 if (connector->display_info.bpc) 114 bpc = connector->display_info.bpc; 115 } 116 } 117 break; 118 case DRM_MODE_CONNECTOR_DVID: 119 case DRM_MODE_CONNECTOR_HDMIA: 120 if (connector->display_info.is_hdmi) { 121 if (connector->display_info.bpc) 122 bpc = connector->display_info.bpc; 123 } 124 break; 125 case DRM_MODE_CONNECTOR_DisplayPort: 126 dig_connector = amdgpu_connector->con_priv; 127 if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || 128 (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) || 129 connector->display_info.is_hdmi) { 130 if (connector->display_info.bpc) 131 bpc = connector->display_info.bpc; 132 } 133 break; 134 case DRM_MODE_CONNECTOR_eDP: 135 case DRM_MODE_CONNECTOR_LVDS: 136 if (connector->display_info.bpc) 137 bpc = connector->display_info.bpc; 138 else { 139 const struct drm_connector_helper_funcs *connector_funcs = 140 connector->helper_private; 141 struct drm_encoder *encoder = connector_funcs->best_encoder(connector); 142 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 143 struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv; 144 145 if (dig->lcd_misc & ATOM_PANEL_MISC_V13_6BIT_PER_COLOR) 146 bpc = 6; 147 else if (dig->lcd_misc & ATOM_PANEL_MISC_V13_8BIT_PER_COLOR) 148 bpc = 8; 149 } 150 break; 151 } 152 153 if (connector->display_info.is_hdmi) { 154 /* 155 * Pre DCE-8 hw can't handle > 12 bpc, and more than 12 bpc doesn't make 156 * much sense without support for > 12 bpc framebuffers. RGB 4:4:4 at 157 * 12 bpc is always supported on hdmi deep color sinks, as this is 158 * required by the HDMI-1.3 spec. Clamp to a safe 12 bpc maximum. 159 */ 160 if (bpc > 12) { 161 DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 12 bpc.\n", 162 connector->name, bpc); 163 bpc = 12; 164 } 165 166 /* Any defined maximum tmds clock limit we must not exceed? */ 167 if (connector->display_info.max_tmds_clock > 0) { 168 /* mode_clock is clock in kHz for mode to be modeset on this connector */ 169 mode_clock = amdgpu_connector->pixelclock_for_modeset; 170 171 /* Maximum allowable input clock in kHz */ 172 max_tmds_clock = connector->display_info.max_tmds_clock; 173 174 DRM_DEBUG("%s: hdmi mode dotclock %d kHz, max tmds input clock %d kHz.\n", 175 connector->name, mode_clock, max_tmds_clock); 176 177 /* Check if bpc is within clock limit. Try to degrade gracefully otherwise */ 178 if ((bpc == 12) && (mode_clock * 3/2 > max_tmds_clock)) { 179 if ((connector->display_info.edid_hdmi_rgb444_dc_modes & DRM_EDID_HDMI_DC_30) && 180 (mode_clock * 5/4 <= max_tmds_clock)) 181 bpc = 10; 182 else 183 bpc = 8; 184 185 DRM_DEBUG("%s: HDMI deep color 12 bpc exceeds max tmds clock. Using %d bpc.\n", 186 connector->name, bpc); 187 } 188 189 if ((bpc == 10) && (mode_clock * 5/4 > max_tmds_clock)) { 190 bpc = 8; 191 DRM_DEBUG("%s: HDMI deep color 10 bpc exceeds max tmds clock. Using %d bpc.\n", 192 connector->name, bpc); 193 } 194 } else if (bpc > 8) { 195 /* max_tmds_clock missing, but hdmi spec mandates it for deep color. */ 196 DRM_DEBUG("%s: Required max tmds clock for HDMI deep color missing. Using 8 bpc.\n", 197 connector->name); 198 bpc = 8; 199 } 200 } 201 202 if ((amdgpu_deep_color == 0) && (bpc > 8)) { 203 DRM_DEBUG("%s: Deep color disabled. Set amdgpu module param deep_color=1 to enable.\n", 204 connector->name); 205 bpc = 8; 206 } 207 208 DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n", 209 connector->name, connector->display_info.bpc, bpc); 210 211 return bpc; 212 } 213 214 static void 215 amdgpu_connector_update_scratch_regs(struct drm_connector *connector, 216 enum drm_connector_status status) 217 { 218 struct drm_encoder *best_encoder; 219 struct drm_encoder *encoder; 220 const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; 221 bool connected; 222 223 best_encoder = connector_funcs->best_encoder(connector); 224 225 drm_connector_for_each_possible_encoder(connector, encoder) { 226 if ((encoder == best_encoder) && (status == connector_status_connected)) 227 connected = true; 228 else 229 connected = false; 230 231 amdgpu_atombios_encoder_set_bios_scratch_regs(connector, encoder, connected); 232 } 233 } 234 235 static struct drm_encoder * 236 amdgpu_connector_find_encoder(struct drm_connector *connector, 237 int encoder_type) 238 { 239 struct drm_encoder *encoder; 240 241 drm_connector_for_each_possible_encoder(connector, encoder) { 242 if (encoder->encoder_type == encoder_type) 243 return encoder; 244 } 245 246 return NULL; 247 } 248 249 static struct edid * 250 amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev) 251 { 252 return drm_edid_duplicate(drm_edid_raw(adev->mode_info.bios_hardcoded_edid)); 253 } 254 255 static void amdgpu_connector_get_edid(struct drm_connector *connector) 256 { 257 struct drm_device *dev = connector->dev; 258 struct amdgpu_device *adev = drm_to_adev(dev); 259 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 260 261 if (amdgpu_connector->edid) 262 return; 263 264 /* on hw with routers, select right port */ 265 if (amdgpu_connector->router.ddc_valid) 266 amdgpu_i2c_router_select_ddc_port(amdgpu_connector); 267 268 if ((amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) != 269 ENCODER_OBJECT_ID_NONE) && 270 amdgpu_connector->ddc_bus->has_aux) { 271 amdgpu_connector->edid = drm_get_edid(connector, 272 &amdgpu_connector->ddc_bus->aux.ddc); 273 } else if ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) || 274 (connector->connector_type == DRM_MODE_CONNECTOR_eDP)) { 275 struct amdgpu_connector_atom_dig *dig = amdgpu_connector->con_priv; 276 277 if ((dig->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT || 278 dig->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) && 279 amdgpu_connector->ddc_bus->has_aux) 280 amdgpu_connector->edid = drm_get_edid(connector, 281 &amdgpu_connector->ddc_bus->aux.ddc); 282 else if (amdgpu_connector->ddc_bus) 283 amdgpu_connector->edid = drm_get_edid(connector, 284 &amdgpu_connector->ddc_bus->adapter); 285 } else if (amdgpu_connector->ddc_bus) { 286 amdgpu_connector->edid = drm_get_edid(connector, 287 &amdgpu_connector->ddc_bus->adapter); 288 } 289 290 if (!amdgpu_connector->edid) { 291 /* some laptops provide a hardcoded edid in rom for LCDs */ 292 if (((connector->connector_type == DRM_MODE_CONNECTOR_LVDS) || 293 (connector->connector_type == DRM_MODE_CONNECTOR_eDP))) { 294 amdgpu_connector->edid = amdgpu_connector_get_hardcoded_edid(adev); 295 drm_connector_update_edid_property(connector, amdgpu_connector->edid); 296 } 297 } 298 } 299 300 static void amdgpu_connector_free_edid(struct drm_connector *connector) 301 { 302 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 303 304 kfree(amdgpu_connector->edid); 305 amdgpu_connector->edid = NULL; 306 } 307 308 static int amdgpu_connector_ddc_get_modes(struct drm_connector *connector) 309 { 310 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 311 int ret; 312 313 if (amdgpu_connector->edid) { 314 drm_connector_update_edid_property(connector, amdgpu_connector->edid); 315 ret = drm_add_edid_modes(connector, amdgpu_connector->edid); 316 return ret; 317 } 318 drm_connector_update_edid_property(connector, NULL); 319 return 0; 320 } 321 322 static struct drm_encoder * 323 amdgpu_connector_best_single_encoder(struct drm_connector *connector) 324 { 325 struct drm_encoder *encoder; 326 327 /* pick the first one */ 328 drm_connector_for_each_possible_encoder(connector, encoder) 329 return encoder; 330 331 return NULL; 332 } 333 334 static void amdgpu_get_native_mode(struct drm_connector *connector) 335 { 336 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 337 struct amdgpu_encoder *amdgpu_encoder; 338 339 if (encoder == NULL) 340 return; 341 342 amdgpu_encoder = to_amdgpu_encoder(encoder); 343 344 if (!list_empty(&connector->probed_modes)) { 345 struct drm_display_mode *preferred_mode = 346 list_first_entry(&connector->probed_modes, 347 struct drm_display_mode, head); 348 349 amdgpu_encoder->native_mode = *preferred_mode; 350 } else { 351 amdgpu_encoder->native_mode.clock = 0; 352 } 353 } 354 355 static struct drm_display_mode * 356 amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder) 357 { 358 struct drm_device *dev = encoder->dev; 359 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 360 struct drm_display_mode *mode = NULL; 361 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 362 363 if (native_mode->hdisplay != 0 && 364 native_mode->vdisplay != 0 && 365 native_mode->clock != 0) { 366 mode = drm_mode_duplicate(dev, native_mode); 367 if (!mode) 368 return NULL; 369 370 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; 371 drm_mode_set_name(mode); 372 373 DRM_DEBUG_KMS("Adding native panel mode %s\n", mode->name); 374 } else if (native_mode->hdisplay != 0 && 375 native_mode->vdisplay != 0) { 376 /* mac laptops without an edid */ 377 /* Note that this is not necessarily the exact panel mode, 378 * but an approximation based on the cvt formula. For these 379 * systems we should ideally read the mode info out of the 380 * registers or add a mode table, but this works and is much 381 * simpler. 382 */ 383 mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false); 384 if (!mode) 385 return NULL; 386 387 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; 388 DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name); 389 } 390 return mode; 391 } 392 393 static void amdgpu_connector_add_common_modes(struct drm_encoder *encoder, 394 struct drm_connector *connector) 395 { 396 struct drm_device *dev = encoder->dev; 397 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 398 struct drm_display_mode *mode = NULL; 399 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 400 int i; 401 static const struct mode_size { 402 int w; 403 int h; 404 } common_modes[17] = { 405 { 640, 480}, 406 { 720, 480}, 407 { 800, 600}, 408 { 848, 480}, 409 {1024, 768}, 410 {1152, 768}, 411 {1280, 720}, 412 {1280, 800}, 413 {1280, 854}, 414 {1280, 960}, 415 {1280, 1024}, 416 {1440, 900}, 417 {1400, 1050}, 418 {1680, 1050}, 419 {1600, 1200}, 420 {1920, 1080}, 421 {1920, 1200} 422 }; 423 424 for (i = 0; i < 17; i++) { 425 if (amdgpu_encoder->devices & (ATOM_DEVICE_TV_SUPPORT)) { 426 if (common_modes[i].w > 1024 || 427 common_modes[i].h > 768) 428 continue; 429 } 430 if (amdgpu_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { 431 if (common_modes[i].w > native_mode->hdisplay || 432 common_modes[i].h > native_mode->vdisplay || 433 (common_modes[i].w == native_mode->hdisplay && 434 common_modes[i].h == native_mode->vdisplay)) 435 continue; 436 } 437 if (common_modes[i].w < 320 || common_modes[i].h < 200) 438 continue; 439 440 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h, 60, false, false, false); 441 if (!mode) 442 return; 443 444 drm_mode_probed_add(connector, mode); 445 } 446 } 447 448 static int amdgpu_connector_set_property(struct drm_connector *connector, 449 struct drm_property *property, 450 uint64_t val) 451 { 452 struct drm_device *dev = connector->dev; 453 struct amdgpu_device *adev = drm_to_adev(dev); 454 struct drm_encoder *encoder; 455 struct amdgpu_encoder *amdgpu_encoder; 456 457 if (property == adev->mode_info.coherent_mode_property) { 458 struct amdgpu_encoder_atom_dig *dig; 459 bool new_coherent_mode; 460 461 /* need to find digital encoder on connector */ 462 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 463 if (!encoder) 464 return 0; 465 466 amdgpu_encoder = to_amdgpu_encoder(encoder); 467 468 if (!amdgpu_encoder->enc_priv) 469 return 0; 470 471 dig = amdgpu_encoder->enc_priv; 472 new_coherent_mode = val ? true : false; 473 if (dig->coherent_mode != new_coherent_mode) { 474 dig->coherent_mode = new_coherent_mode; 475 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 476 } 477 } 478 479 if (property == adev->mode_info.audio_property) { 480 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 481 /* need to find digital encoder on connector */ 482 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 483 if (!encoder) 484 return 0; 485 486 amdgpu_encoder = to_amdgpu_encoder(encoder); 487 488 if (amdgpu_connector->audio != val) { 489 amdgpu_connector->audio = val; 490 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 491 } 492 } 493 494 if (property == adev->mode_info.dither_property) { 495 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 496 /* need to find digital encoder on connector */ 497 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 498 if (!encoder) 499 return 0; 500 501 amdgpu_encoder = to_amdgpu_encoder(encoder); 502 503 if (amdgpu_connector->dither != val) { 504 amdgpu_connector->dither = val; 505 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 506 } 507 } 508 509 if (property == adev->mode_info.underscan_property) { 510 /* need to find digital encoder on connector */ 511 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 512 if (!encoder) 513 return 0; 514 515 amdgpu_encoder = to_amdgpu_encoder(encoder); 516 517 if (amdgpu_encoder->underscan_type != val) { 518 amdgpu_encoder->underscan_type = val; 519 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 520 } 521 } 522 523 if (property == adev->mode_info.underscan_hborder_property) { 524 /* need to find digital encoder on connector */ 525 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 526 if (!encoder) 527 return 0; 528 529 amdgpu_encoder = to_amdgpu_encoder(encoder); 530 531 if (amdgpu_encoder->underscan_hborder != val) { 532 amdgpu_encoder->underscan_hborder = val; 533 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 534 } 535 } 536 537 if (property == adev->mode_info.underscan_vborder_property) { 538 /* need to find digital encoder on connector */ 539 encoder = amdgpu_connector_find_encoder(connector, DRM_MODE_ENCODER_TMDS); 540 if (!encoder) 541 return 0; 542 543 amdgpu_encoder = to_amdgpu_encoder(encoder); 544 545 if (amdgpu_encoder->underscan_vborder != val) { 546 amdgpu_encoder->underscan_vborder = val; 547 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 548 } 549 } 550 551 if (property == adev->mode_info.load_detect_property) { 552 struct amdgpu_connector *amdgpu_connector = 553 to_amdgpu_connector(connector); 554 555 if (val == 0) 556 amdgpu_connector->dac_load_detect = false; 557 else 558 amdgpu_connector->dac_load_detect = true; 559 } 560 561 if (property == dev->mode_config.scaling_mode_property) { 562 enum amdgpu_rmx_type rmx_type; 563 564 if (connector->encoder) { 565 amdgpu_encoder = to_amdgpu_encoder(connector->encoder); 566 } else { 567 const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; 568 569 amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector)); 570 } 571 572 switch (val) { 573 default: 574 case DRM_MODE_SCALE_NONE: 575 rmx_type = RMX_OFF; 576 break; 577 case DRM_MODE_SCALE_CENTER: 578 rmx_type = RMX_CENTER; 579 break; 580 case DRM_MODE_SCALE_ASPECT: 581 rmx_type = RMX_ASPECT; 582 break; 583 case DRM_MODE_SCALE_FULLSCREEN: 584 rmx_type = RMX_FULL; 585 break; 586 } 587 588 if (amdgpu_encoder->rmx_type == rmx_type) 589 return 0; 590 591 if ((rmx_type != DRM_MODE_SCALE_NONE) && 592 (amdgpu_encoder->native_mode.clock == 0)) 593 return 0; 594 595 amdgpu_encoder->rmx_type = rmx_type; 596 597 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 598 } 599 600 return 0; 601 } 602 603 static void 604 amdgpu_connector_fixup_lcd_native_mode(struct drm_encoder *encoder, 605 struct drm_connector *connector) 606 { 607 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 608 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 609 struct drm_display_mode *t, *mode; 610 611 /* If the EDID preferred mode doesn't match the native mode, use it */ 612 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) { 613 if (mode->type & DRM_MODE_TYPE_PREFERRED) { 614 if (mode->hdisplay != native_mode->hdisplay || 615 mode->vdisplay != native_mode->vdisplay) 616 drm_mode_copy(native_mode, mode); 617 } 618 } 619 620 /* Try to get native mode details from EDID if necessary */ 621 if (!native_mode->clock) { 622 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) { 623 if (mode->hdisplay == native_mode->hdisplay && 624 mode->vdisplay == native_mode->vdisplay) { 625 drm_mode_copy(native_mode, mode); 626 drm_mode_set_crtcinfo(native_mode, CRTC_INTERLACE_HALVE_V); 627 DRM_DEBUG_KMS("Determined LVDS native mode details from EDID\n"); 628 break; 629 } 630 } 631 } 632 633 if (!native_mode->clock) { 634 DRM_DEBUG_KMS("No LVDS native mode details, disabling RMX\n"); 635 amdgpu_encoder->rmx_type = RMX_OFF; 636 } 637 } 638 639 static int amdgpu_connector_lvds_get_modes(struct drm_connector *connector) 640 { 641 struct drm_encoder *encoder; 642 int ret = 0; 643 struct drm_display_mode *mode; 644 645 amdgpu_connector_get_edid(connector); 646 ret = amdgpu_connector_ddc_get_modes(connector); 647 if (ret > 0) { 648 encoder = amdgpu_connector_best_single_encoder(connector); 649 if (encoder) { 650 amdgpu_connector_fixup_lcd_native_mode(encoder, connector); 651 /* add scaled modes */ 652 amdgpu_connector_add_common_modes(encoder, connector); 653 } 654 return ret; 655 } 656 657 encoder = amdgpu_connector_best_single_encoder(connector); 658 if (!encoder) 659 return 0; 660 661 /* we have no EDID modes */ 662 mode = amdgpu_connector_lcd_native_mode(encoder); 663 if (mode) { 664 ret = 1; 665 drm_mode_probed_add(connector, mode); 666 /* add the width/height from vbios tables if available */ 667 connector->display_info.width_mm = mode->width_mm; 668 connector->display_info.height_mm = mode->height_mm; 669 /* add scaled modes */ 670 amdgpu_connector_add_common_modes(encoder, connector); 671 } 672 673 return ret; 674 } 675 676 static enum drm_mode_status amdgpu_connector_lvds_mode_valid(struct drm_connector *connector, 677 const struct drm_display_mode *mode) 678 { 679 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 680 681 if ((mode->hdisplay < 320) || (mode->vdisplay < 240)) 682 return MODE_PANEL; 683 684 if (encoder) { 685 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 686 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 687 688 /* AVIVO hardware supports downscaling modes larger than the panel 689 * to the panel size, but I'm not sure this is desirable. 690 */ 691 if ((mode->hdisplay > native_mode->hdisplay) || 692 (mode->vdisplay > native_mode->vdisplay)) 693 return MODE_PANEL; 694 695 /* if scaling is disabled, block non-native modes */ 696 if (amdgpu_encoder->rmx_type == RMX_OFF) { 697 if ((mode->hdisplay != native_mode->hdisplay) || 698 (mode->vdisplay != native_mode->vdisplay)) 699 return MODE_PANEL; 700 } 701 } 702 703 return MODE_OK; 704 } 705 706 static enum drm_connector_status 707 amdgpu_connector_lvds_detect(struct drm_connector *connector, bool force) 708 { 709 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 710 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 711 enum drm_connector_status ret = connector_status_disconnected; 712 int r; 713 714 if (!drm_kms_helper_is_poll_worker()) { 715 r = pm_runtime_get_sync(connector->dev->dev); 716 if (r < 0) { 717 pm_runtime_put_autosuspend(connector->dev->dev); 718 return connector_status_disconnected; 719 } 720 } 721 722 if (encoder) { 723 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 724 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 725 726 /* check if panel is valid */ 727 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240) 728 ret = connector_status_connected; 729 730 } 731 732 /* check for edid as well */ 733 amdgpu_connector_get_edid(connector); 734 if (amdgpu_connector->edid) 735 ret = connector_status_connected; 736 /* check acpi lid status ??? */ 737 738 amdgpu_connector_update_scratch_regs(connector, ret); 739 740 if (!drm_kms_helper_is_poll_worker()) { 741 pm_runtime_mark_last_busy(connector->dev->dev); 742 pm_runtime_put_autosuspend(connector->dev->dev); 743 } 744 745 return ret; 746 } 747 748 static void amdgpu_connector_unregister(struct drm_connector *connector) 749 { 750 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 751 752 if (amdgpu_connector->ddc_bus && amdgpu_connector->ddc_bus->has_aux) { 753 drm_dp_aux_unregister(&amdgpu_connector->ddc_bus->aux); 754 amdgpu_connector->ddc_bus->has_aux = false; 755 } 756 } 757 758 static void amdgpu_connector_destroy(struct drm_connector *connector) 759 { 760 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 761 762 amdgpu_connector_free_edid(connector); 763 kfree(amdgpu_connector->con_priv); 764 drm_connector_unregister(connector); 765 drm_connector_cleanup(connector); 766 kfree(connector); 767 } 768 769 static int amdgpu_connector_set_lcd_property(struct drm_connector *connector, 770 struct drm_property *property, 771 uint64_t value) 772 { 773 struct drm_device *dev = connector->dev; 774 struct amdgpu_encoder *amdgpu_encoder; 775 enum amdgpu_rmx_type rmx_type; 776 777 DRM_DEBUG_KMS("\n"); 778 if (property != dev->mode_config.scaling_mode_property) 779 return 0; 780 781 if (connector->encoder) 782 amdgpu_encoder = to_amdgpu_encoder(connector->encoder); 783 else { 784 const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; 785 786 amdgpu_encoder = to_amdgpu_encoder(connector_funcs->best_encoder(connector)); 787 } 788 789 switch (value) { 790 case DRM_MODE_SCALE_NONE: 791 rmx_type = RMX_OFF; 792 break; 793 case DRM_MODE_SCALE_CENTER: 794 rmx_type = RMX_CENTER; 795 break; 796 case DRM_MODE_SCALE_ASPECT: 797 rmx_type = RMX_ASPECT; 798 break; 799 default: 800 case DRM_MODE_SCALE_FULLSCREEN: 801 rmx_type = RMX_FULL; 802 break; 803 } 804 805 if (amdgpu_encoder->rmx_type == rmx_type) 806 return 0; 807 808 amdgpu_encoder->rmx_type = rmx_type; 809 810 amdgpu_connector_property_change_mode(&amdgpu_encoder->base); 811 return 0; 812 } 813 814 815 static const struct drm_connector_helper_funcs amdgpu_connector_lvds_helper_funcs = { 816 .get_modes = amdgpu_connector_lvds_get_modes, 817 .mode_valid = amdgpu_connector_lvds_mode_valid, 818 .best_encoder = amdgpu_connector_best_single_encoder, 819 }; 820 821 static const struct drm_connector_funcs amdgpu_connector_lvds_funcs = { 822 .dpms = drm_helper_connector_dpms, 823 .detect = amdgpu_connector_lvds_detect, 824 .fill_modes = drm_helper_probe_single_connector_modes, 825 .early_unregister = amdgpu_connector_unregister, 826 .destroy = amdgpu_connector_destroy, 827 .set_property = amdgpu_connector_set_lcd_property, 828 }; 829 830 static int amdgpu_connector_vga_get_modes(struct drm_connector *connector) 831 { 832 int ret; 833 834 amdgpu_connector_get_edid(connector); 835 ret = amdgpu_connector_ddc_get_modes(connector); 836 amdgpu_get_native_mode(connector); 837 838 return ret; 839 } 840 841 static enum drm_mode_status amdgpu_connector_vga_mode_valid(struct drm_connector *connector, 842 const struct drm_display_mode *mode) 843 { 844 struct drm_device *dev = connector->dev; 845 struct amdgpu_device *adev = drm_to_adev(dev); 846 847 /* XXX check mode bandwidth */ 848 849 if ((mode->clock / 10) > adev->clock.max_pixel_clock) 850 return MODE_CLOCK_HIGH; 851 852 return MODE_OK; 853 } 854 855 static enum drm_connector_status 856 amdgpu_connector_vga_detect(struct drm_connector *connector, bool force) 857 { 858 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 859 struct drm_encoder *encoder; 860 const struct drm_encoder_helper_funcs *encoder_funcs; 861 bool dret = false; 862 enum drm_connector_status ret = connector_status_disconnected; 863 int r; 864 865 if (!drm_kms_helper_is_poll_worker()) { 866 r = pm_runtime_get_sync(connector->dev->dev); 867 if (r < 0) { 868 pm_runtime_put_autosuspend(connector->dev->dev); 869 return connector_status_disconnected; 870 } 871 } 872 873 encoder = amdgpu_connector_best_single_encoder(connector); 874 if (!encoder) 875 ret = connector_status_disconnected; 876 877 if (amdgpu_connector->ddc_bus) 878 dret = amdgpu_display_ddc_probe(amdgpu_connector, false); 879 if (dret) { 880 amdgpu_connector->detected_by_load = false; 881 amdgpu_connector_free_edid(connector); 882 amdgpu_connector_get_edid(connector); 883 884 if (!amdgpu_connector->edid) { 885 DRM_ERROR("%s: probed a monitor but no|invalid EDID\n", 886 connector->name); 887 ret = connector_status_connected; 888 } else { 889 amdgpu_connector->use_digital = 890 !!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL); 891 892 /* some oems have boards with separate digital and analog connectors 893 * with a shared ddc line (often vga + hdmi) 894 */ 895 if (amdgpu_connector->use_digital && amdgpu_connector->shared_ddc) { 896 amdgpu_connector_free_edid(connector); 897 ret = connector_status_disconnected; 898 } else { 899 ret = connector_status_connected; 900 } 901 } 902 } else { 903 904 /* if we aren't forcing don't do destructive polling */ 905 if (!force) { 906 /* only return the previous status if we last 907 * detected a monitor via load. 908 */ 909 if (amdgpu_connector->detected_by_load) 910 ret = connector->status; 911 goto out; 912 } 913 914 if (amdgpu_connector->dac_load_detect && encoder) { 915 encoder_funcs = encoder->helper_private; 916 ret = encoder_funcs->detect(encoder, connector); 917 if (ret != connector_status_disconnected) 918 amdgpu_connector->detected_by_load = true; 919 } 920 } 921 922 amdgpu_connector_update_scratch_regs(connector, ret); 923 924 out: 925 if (!drm_kms_helper_is_poll_worker()) { 926 pm_runtime_mark_last_busy(connector->dev->dev); 927 pm_runtime_put_autosuspend(connector->dev->dev); 928 } 929 930 return ret; 931 } 932 933 static const struct drm_connector_helper_funcs amdgpu_connector_vga_helper_funcs = { 934 .get_modes = amdgpu_connector_vga_get_modes, 935 .mode_valid = amdgpu_connector_vga_mode_valid, 936 .best_encoder = amdgpu_connector_best_single_encoder, 937 }; 938 939 static const struct drm_connector_funcs amdgpu_connector_vga_funcs = { 940 .dpms = drm_helper_connector_dpms, 941 .detect = amdgpu_connector_vga_detect, 942 .fill_modes = drm_helper_probe_single_connector_modes, 943 .early_unregister = amdgpu_connector_unregister, 944 .destroy = amdgpu_connector_destroy, 945 .set_property = amdgpu_connector_set_property, 946 }; 947 948 static bool 949 amdgpu_connector_check_hpd_status_unchanged(struct drm_connector *connector) 950 { 951 struct drm_device *dev = connector->dev; 952 struct amdgpu_device *adev = drm_to_adev(dev); 953 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 954 enum drm_connector_status status; 955 956 if (amdgpu_connector->hpd.hpd != AMDGPU_HPD_NONE) { 957 if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) 958 status = connector_status_connected; 959 else 960 status = connector_status_disconnected; 961 if (connector->status == status) 962 return true; 963 } 964 965 return false; 966 } 967 968 static void amdgpu_connector_shared_ddc(enum drm_connector_status *status, 969 struct drm_connector *connector, 970 struct amdgpu_connector *amdgpu_connector) 971 { 972 struct drm_connector *list_connector; 973 struct drm_connector_list_iter iter; 974 struct amdgpu_connector *list_amdgpu_connector; 975 struct drm_device *dev = connector->dev; 976 struct amdgpu_device *adev = drm_to_adev(dev); 977 978 if (amdgpu_connector->shared_ddc && *status == connector_status_connected) { 979 drm_connector_list_iter_begin(dev, &iter); 980 drm_for_each_connector_iter(list_connector, 981 &iter) { 982 if (connector == list_connector) 983 continue; 984 list_amdgpu_connector = to_amdgpu_connector(list_connector); 985 if (list_amdgpu_connector->shared_ddc && 986 list_amdgpu_connector->ddc_bus->rec.i2c_id == 987 amdgpu_connector->ddc_bus->rec.i2c_id) { 988 /* cases where both connectors are digital */ 989 if (list_connector->connector_type != DRM_MODE_CONNECTOR_VGA) { 990 /* hpd is our only option in this case */ 991 if (!amdgpu_display_hpd_sense(adev, 992 amdgpu_connector->hpd.hpd)) { 993 amdgpu_connector_free_edid(connector); 994 *status = connector_status_disconnected; 995 } 996 } 997 } 998 } 999 drm_connector_list_iter_end(&iter); 1000 } 1001 } 1002 1003 /* 1004 * DVI is complicated 1005 * Do a DDC probe, if DDC probe passes, get the full EDID so 1006 * we can do analog/digital monitor detection at this point. 1007 * If the monitor is an analog monitor or we got no DDC, 1008 * we need to find the DAC encoder object for this connector. 1009 * If we got no DDC, we do load detection on the DAC encoder object. 1010 * If we got analog DDC or load detection passes on the DAC encoder 1011 * we have to check if this analog encoder is shared with anyone else (TV) 1012 * if its shared we have to set the other connector to disconnected. 1013 */ 1014 static enum drm_connector_status 1015 amdgpu_connector_dvi_detect(struct drm_connector *connector, bool force) 1016 { 1017 struct drm_device *dev = connector->dev; 1018 struct amdgpu_device *adev = drm_to_adev(dev); 1019 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1020 const struct drm_encoder_helper_funcs *encoder_funcs; 1021 int r; 1022 enum drm_connector_status ret = connector_status_disconnected; 1023 bool dret = false, broken_edid = false; 1024 1025 if (!drm_kms_helper_is_poll_worker()) { 1026 r = pm_runtime_get_sync(connector->dev->dev); 1027 if (r < 0) { 1028 pm_runtime_put_autosuspend(connector->dev->dev); 1029 return connector_status_disconnected; 1030 } 1031 } 1032 1033 if (amdgpu_connector->detected_hpd_without_ddc) { 1034 force = true; 1035 amdgpu_connector->detected_hpd_without_ddc = false; 1036 } 1037 1038 if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) { 1039 ret = connector->status; 1040 goto exit; 1041 } 1042 1043 if (amdgpu_connector->ddc_bus) { 1044 dret = amdgpu_display_ddc_probe(amdgpu_connector, false); 1045 1046 /* Sometimes the pins required for the DDC probe on DVI 1047 * connectors don't make contact at the same time that the ones 1048 * for HPD do. If the DDC probe fails even though we had an HPD 1049 * signal, try again later 1050 */ 1051 if (!dret && !force && 1052 amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) { 1053 DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n"); 1054 amdgpu_connector->detected_hpd_without_ddc = true; 1055 schedule_delayed_work(&adev->hotplug_work, 1056 msecs_to_jiffies(1000)); 1057 goto exit; 1058 } 1059 } 1060 if (dret) { 1061 amdgpu_connector->detected_by_load = false; 1062 amdgpu_connector_free_edid(connector); 1063 amdgpu_connector_get_edid(connector); 1064 1065 if (!amdgpu_connector->edid) { 1066 DRM_ERROR("%s: probed a monitor but no|invalid EDID\n", 1067 connector->name); 1068 ret = connector_status_connected; 1069 broken_edid = true; /* defer use_digital to later */ 1070 } else { 1071 amdgpu_connector->use_digital = 1072 !!(amdgpu_connector->edid->input & DRM_EDID_INPUT_DIGITAL); 1073 1074 /* some oems have boards with separate digital and analog connectors 1075 * with a shared ddc line (often vga + hdmi) 1076 */ 1077 if ((!amdgpu_connector->use_digital) && amdgpu_connector->shared_ddc) { 1078 amdgpu_connector_free_edid(connector); 1079 ret = connector_status_disconnected; 1080 } else { 1081 ret = connector_status_connected; 1082 } 1083 1084 /* This gets complicated. We have boards with VGA + HDMI with a 1085 * shared DDC line and we have boards with DVI-D + HDMI with a shared 1086 * DDC line. The latter is more complex because with DVI<->HDMI adapters 1087 * you don't really know what's connected to which port as both are digital. 1088 */ 1089 amdgpu_connector_shared_ddc(&ret, connector, amdgpu_connector); 1090 } 1091 } 1092 1093 if ((ret == connector_status_connected) && (amdgpu_connector->use_digital == true)) 1094 goto out; 1095 1096 /* DVI-D and HDMI-A are digital only */ 1097 if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) || 1098 (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA)) 1099 goto out; 1100 1101 /* if we aren't forcing don't do destructive polling */ 1102 if (!force) { 1103 /* only return the previous status if we last 1104 * detected a monitor via load. 1105 */ 1106 if (amdgpu_connector->detected_by_load) 1107 ret = connector->status; 1108 goto out; 1109 } 1110 1111 /* find analog encoder */ 1112 if (amdgpu_connector->dac_load_detect) { 1113 struct drm_encoder *encoder; 1114 1115 drm_connector_for_each_possible_encoder(connector, encoder) { 1116 if (encoder->encoder_type != DRM_MODE_ENCODER_DAC && 1117 encoder->encoder_type != DRM_MODE_ENCODER_TVDAC) 1118 continue; 1119 1120 encoder_funcs = encoder->helper_private; 1121 if (encoder_funcs->detect) { 1122 if (!broken_edid) { 1123 if (ret != connector_status_connected) { 1124 /* deal with analog monitors without DDC */ 1125 ret = encoder_funcs->detect(encoder, connector); 1126 if (ret == connector_status_connected) { 1127 amdgpu_connector->use_digital = false; 1128 } 1129 if (ret != connector_status_disconnected) 1130 amdgpu_connector->detected_by_load = true; 1131 } 1132 } else { 1133 enum drm_connector_status lret; 1134 /* assume digital unless load detected otherwise */ 1135 amdgpu_connector->use_digital = true; 1136 lret = encoder_funcs->detect(encoder, connector); 1137 DRM_DEBUG_KMS("load_detect %x returned: %x\n", 1138 encoder->encoder_type, lret); 1139 if (lret == connector_status_connected) 1140 amdgpu_connector->use_digital = false; 1141 } 1142 break; 1143 } 1144 } 1145 } 1146 1147 out: 1148 /* updated in get modes as well since we need to know if it's analog or digital */ 1149 amdgpu_connector_update_scratch_regs(connector, ret); 1150 1151 exit: 1152 if (!drm_kms_helper_is_poll_worker()) { 1153 pm_runtime_mark_last_busy(connector->dev->dev); 1154 pm_runtime_put_autosuspend(connector->dev->dev); 1155 } 1156 1157 return ret; 1158 } 1159 1160 /* okay need to be smart in here about which encoder to pick */ 1161 static struct drm_encoder * 1162 amdgpu_connector_dvi_encoder(struct drm_connector *connector) 1163 { 1164 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1165 struct drm_encoder *encoder; 1166 1167 drm_connector_for_each_possible_encoder(connector, encoder) { 1168 if (amdgpu_connector->use_digital == true) { 1169 if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS) 1170 return encoder; 1171 } else { 1172 if (encoder->encoder_type == DRM_MODE_ENCODER_DAC || 1173 encoder->encoder_type == DRM_MODE_ENCODER_TVDAC) 1174 return encoder; 1175 } 1176 } 1177 1178 /* see if we have a default encoder TODO */ 1179 1180 /* then check use digitial */ 1181 /* pick the first one */ 1182 drm_connector_for_each_possible_encoder(connector, encoder) 1183 return encoder; 1184 1185 return NULL; 1186 } 1187 1188 static void amdgpu_connector_dvi_force(struct drm_connector *connector) 1189 { 1190 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1191 1192 if (connector->force == DRM_FORCE_ON) 1193 amdgpu_connector->use_digital = false; 1194 if (connector->force == DRM_FORCE_ON_DIGITAL) 1195 amdgpu_connector->use_digital = true; 1196 } 1197 1198 /** 1199 * amdgpu_max_hdmi_pixel_clock - Return max supported HDMI (TMDS) pixel clock 1200 * @adev: pointer to amdgpu_device 1201 * 1202 * Return: maximum supported HDMI (TMDS) pixel clock in KHz. 1203 */ 1204 static int amdgpu_max_hdmi_pixel_clock(const struct amdgpu_device *adev) 1205 { 1206 if (adev->asic_type >= CHIP_POLARIS10) 1207 return 600000; 1208 else if (adev->asic_type >= CHIP_TONGA) 1209 return 300000; 1210 else 1211 return 297000; 1212 } 1213 1214 /** 1215 * amdgpu_connector_dvi_mode_valid - Validate a mode on DVI/HDMI connectors 1216 * @connector: DRM connector to validate the mode on 1217 * @mode: display mode to validate 1218 * 1219 * Validate the given display mode on DVI and HDMI connectors, including 1220 * analog signals on DVI-I. 1221 * 1222 * Return: drm_mode_status indicating whether the mode is valid. 1223 */ 1224 static enum drm_mode_status amdgpu_connector_dvi_mode_valid(struct drm_connector *connector, 1225 const struct drm_display_mode *mode) 1226 { 1227 struct drm_device *dev = connector->dev; 1228 struct amdgpu_device *adev = drm_to_adev(dev); 1229 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1230 const int max_hdmi_pixel_clock = amdgpu_max_hdmi_pixel_clock(adev); 1231 const int max_dvi_single_link_pixel_clock = 165000; 1232 int max_digital_pixel_clock_khz; 1233 1234 /* XXX check mode bandwidth */ 1235 1236 if (amdgpu_connector->use_digital) { 1237 switch (amdgpu_connector->connector_object_id) { 1238 case CONNECTOR_OBJECT_ID_HDMI_TYPE_A: 1239 max_digital_pixel_clock_khz = max_hdmi_pixel_clock; 1240 break; 1241 case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_I: 1242 case CONNECTOR_OBJECT_ID_SINGLE_LINK_DVI_D: 1243 max_digital_pixel_clock_khz = max_dvi_single_link_pixel_clock; 1244 break; 1245 case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_I: 1246 case CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D: 1247 case CONNECTOR_OBJECT_ID_HDMI_TYPE_B: 1248 max_digital_pixel_clock_khz = max_dvi_single_link_pixel_clock * 2; 1249 break; 1250 } 1251 1252 /* When the display EDID claims that it's an HDMI display, 1253 * we use the HDMI encoder mode of the display HW, 1254 * so we should verify against the max HDMI clock here. 1255 */ 1256 if (connector->display_info.is_hdmi) 1257 max_digital_pixel_clock_khz = max_hdmi_pixel_clock; 1258 1259 if (mode->clock > max_digital_pixel_clock_khz) 1260 return MODE_CLOCK_HIGH; 1261 } 1262 1263 /* check against the max pixel clock */ 1264 if ((mode->clock / 10) > adev->clock.max_pixel_clock) 1265 return MODE_CLOCK_HIGH; 1266 1267 return MODE_OK; 1268 } 1269 1270 static const struct drm_connector_helper_funcs amdgpu_connector_dvi_helper_funcs = { 1271 .get_modes = amdgpu_connector_vga_get_modes, 1272 .mode_valid = amdgpu_connector_dvi_mode_valid, 1273 .best_encoder = amdgpu_connector_dvi_encoder, 1274 }; 1275 1276 static const struct drm_connector_funcs amdgpu_connector_dvi_funcs = { 1277 .dpms = drm_helper_connector_dpms, 1278 .detect = amdgpu_connector_dvi_detect, 1279 .fill_modes = drm_helper_probe_single_connector_modes, 1280 .set_property = amdgpu_connector_set_property, 1281 .early_unregister = amdgpu_connector_unregister, 1282 .destroy = amdgpu_connector_destroy, 1283 .force = amdgpu_connector_dvi_force, 1284 }; 1285 1286 static int amdgpu_connector_dp_get_modes(struct drm_connector *connector) 1287 { 1288 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1289 struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv; 1290 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 1291 int ret; 1292 1293 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) || 1294 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) { 1295 struct drm_display_mode *mode; 1296 1297 if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { 1298 if (!amdgpu_dig_connector->edp_on) 1299 amdgpu_atombios_encoder_set_edp_panel_power(connector, 1300 ATOM_TRANSMITTER_ACTION_POWER_ON); 1301 amdgpu_connector_get_edid(connector); 1302 ret = amdgpu_connector_ddc_get_modes(connector); 1303 if (!amdgpu_dig_connector->edp_on) 1304 amdgpu_atombios_encoder_set_edp_panel_power(connector, 1305 ATOM_TRANSMITTER_ACTION_POWER_OFF); 1306 } else { 1307 /* need to setup ddc on the bridge */ 1308 if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) != 1309 ENCODER_OBJECT_ID_NONE) { 1310 if (encoder) 1311 amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder); 1312 } 1313 amdgpu_connector_get_edid(connector); 1314 ret = amdgpu_connector_ddc_get_modes(connector); 1315 } 1316 1317 if (ret > 0) { 1318 if (encoder) { 1319 amdgpu_connector_fixup_lcd_native_mode(encoder, connector); 1320 /* add scaled modes */ 1321 amdgpu_connector_add_common_modes(encoder, connector); 1322 } 1323 return ret; 1324 } 1325 1326 if (!encoder) 1327 return 0; 1328 1329 /* we have no EDID modes */ 1330 mode = amdgpu_connector_lcd_native_mode(encoder); 1331 if (mode) { 1332 ret = 1; 1333 drm_mode_probed_add(connector, mode); 1334 /* add the width/height from vbios tables if available */ 1335 connector->display_info.width_mm = mode->width_mm; 1336 connector->display_info.height_mm = mode->height_mm; 1337 /* add scaled modes */ 1338 amdgpu_connector_add_common_modes(encoder, connector); 1339 } 1340 } else { 1341 /* need to setup ddc on the bridge */ 1342 if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) != 1343 ENCODER_OBJECT_ID_NONE) { 1344 if (encoder) 1345 amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder); 1346 } 1347 amdgpu_connector_get_edid(connector); 1348 ret = amdgpu_connector_ddc_get_modes(connector); 1349 1350 amdgpu_get_native_mode(connector); 1351 } 1352 1353 return ret; 1354 } 1355 1356 u16 amdgpu_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector *connector) 1357 { 1358 struct drm_encoder *encoder; 1359 struct amdgpu_encoder *amdgpu_encoder; 1360 1361 drm_connector_for_each_possible_encoder(connector, encoder) { 1362 amdgpu_encoder = to_amdgpu_encoder(encoder); 1363 1364 switch (amdgpu_encoder->encoder_id) { 1365 case ENCODER_OBJECT_ID_TRAVIS: 1366 case ENCODER_OBJECT_ID_NUTMEG: 1367 return amdgpu_encoder->encoder_id; 1368 default: 1369 break; 1370 } 1371 } 1372 1373 return ENCODER_OBJECT_ID_NONE; 1374 } 1375 1376 static bool amdgpu_connector_encoder_is_hbr2(struct drm_connector *connector) 1377 { 1378 struct drm_encoder *encoder; 1379 struct amdgpu_encoder *amdgpu_encoder; 1380 bool found = false; 1381 1382 drm_connector_for_each_possible_encoder(connector, encoder) { 1383 amdgpu_encoder = to_amdgpu_encoder(encoder); 1384 if (amdgpu_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2) 1385 found = true; 1386 } 1387 1388 return found; 1389 } 1390 1391 bool amdgpu_connector_is_dp12_capable(struct drm_connector *connector) 1392 { 1393 struct drm_device *dev = connector->dev; 1394 struct amdgpu_device *adev = drm_to_adev(dev); 1395 1396 if ((adev->clock.default_dispclk >= 53900) && 1397 amdgpu_connector_encoder_is_hbr2(connector)) { 1398 return true; 1399 } 1400 1401 return false; 1402 } 1403 1404 static enum drm_connector_status 1405 amdgpu_connector_dp_detect(struct drm_connector *connector, bool force) 1406 { 1407 struct drm_device *dev = connector->dev; 1408 struct amdgpu_device *adev = drm_to_adev(dev); 1409 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1410 enum drm_connector_status ret = connector_status_disconnected; 1411 struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv; 1412 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 1413 int r; 1414 1415 if (!drm_kms_helper_is_poll_worker()) { 1416 r = pm_runtime_get_sync(connector->dev->dev); 1417 if (r < 0) { 1418 pm_runtime_put_autosuspend(connector->dev->dev); 1419 return connector_status_disconnected; 1420 } 1421 } 1422 1423 if (!force && amdgpu_connector_check_hpd_status_unchanged(connector)) { 1424 ret = connector->status; 1425 goto out; 1426 } 1427 1428 amdgpu_connector_free_edid(connector); 1429 1430 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) || 1431 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) { 1432 if (encoder) { 1433 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 1434 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 1435 1436 /* check if panel is valid */ 1437 if (native_mode->hdisplay >= 320 && native_mode->vdisplay >= 240) 1438 ret = connector_status_connected; 1439 } 1440 /* eDP is always DP */ 1441 amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT; 1442 if (!amdgpu_dig_connector->edp_on) 1443 amdgpu_atombios_encoder_set_edp_panel_power(connector, 1444 ATOM_TRANSMITTER_ACTION_POWER_ON); 1445 if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) 1446 ret = connector_status_connected; 1447 if (!amdgpu_dig_connector->edp_on) 1448 amdgpu_atombios_encoder_set_edp_panel_power(connector, 1449 ATOM_TRANSMITTER_ACTION_POWER_OFF); 1450 } else if (amdgpu_connector_encoder_get_dp_bridge_encoder_id(connector) != 1451 ENCODER_OBJECT_ID_NONE) { 1452 /* DP bridges are always DP */ 1453 amdgpu_dig_connector->dp_sink_type = CONNECTOR_OBJECT_ID_DISPLAYPORT; 1454 /* get the DPCD from the bridge */ 1455 amdgpu_atombios_dp_get_dpcd(amdgpu_connector); 1456 1457 if (encoder) { 1458 /* setup ddc on the bridge */ 1459 amdgpu_atombios_encoder_setup_ext_encoder_ddc(encoder); 1460 /* bridge chips are always aux */ 1461 /* try DDC */ 1462 if (amdgpu_display_ddc_probe(amdgpu_connector, true)) 1463 ret = connector_status_connected; 1464 else if (amdgpu_connector->dac_load_detect) { /* try load detection */ 1465 const struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private; 1466 1467 ret = encoder_funcs->detect(encoder, connector); 1468 } 1469 } 1470 } else { 1471 amdgpu_dig_connector->dp_sink_type = 1472 amdgpu_atombios_dp_get_sinktype(amdgpu_connector); 1473 if (amdgpu_display_hpd_sense(adev, amdgpu_connector->hpd.hpd)) { 1474 ret = connector_status_connected; 1475 if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) 1476 amdgpu_atombios_dp_get_dpcd(amdgpu_connector); 1477 } else { 1478 if (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) { 1479 if (!amdgpu_atombios_dp_get_dpcd(amdgpu_connector)) 1480 ret = connector_status_connected; 1481 } else { 1482 /* try non-aux ddc (DP to DVI/HDMI/etc. adapter) */ 1483 if (amdgpu_display_ddc_probe(amdgpu_connector, 1484 false)) 1485 ret = connector_status_connected; 1486 } 1487 } 1488 } 1489 1490 amdgpu_connector_update_scratch_regs(connector, ret); 1491 out: 1492 if (!drm_kms_helper_is_poll_worker()) { 1493 pm_runtime_mark_last_busy(connector->dev->dev); 1494 pm_runtime_put_autosuspend(connector->dev->dev); 1495 } 1496 1497 if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort || 1498 connector->connector_type == DRM_MODE_CONNECTOR_eDP) 1499 drm_dp_set_subconnector_property(&amdgpu_connector->base, 1500 ret, 1501 amdgpu_dig_connector->dpcd, 1502 amdgpu_dig_connector->downstream_ports); 1503 return ret; 1504 } 1505 1506 static enum drm_mode_status amdgpu_connector_dp_mode_valid(struct drm_connector *connector, 1507 const struct drm_display_mode *mode) 1508 { 1509 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1510 struct amdgpu_connector_atom_dig *amdgpu_dig_connector = amdgpu_connector->con_priv; 1511 1512 /* XXX check mode bandwidth */ 1513 1514 if ((connector->connector_type == DRM_MODE_CONNECTOR_eDP) || 1515 (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)) { 1516 struct drm_encoder *encoder = amdgpu_connector_best_single_encoder(connector); 1517 1518 if ((mode->hdisplay < 320) || (mode->vdisplay < 240)) 1519 return MODE_PANEL; 1520 1521 if (encoder) { 1522 struct amdgpu_encoder *amdgpu_encoder = to_amdgpu_encoder(encoder); 1523 struct drm_display_mode *native_mode = &amdgpu_encoder->native_mode; 1524 1525 /* AVIVO hardware supports downscaling modes larger than the panel 1526 * to the panel size, but I'm not sure this is desirable. 1527 */ 1528 if ((mode->hdisplay > native_mode->hdisplay) || 1529 (mode->vdisplay > native_mode->vdisplay)) 1530 return MODE_PANEL; 1531 1532 /* if scaling is disabled, block non-native modes */ 1533 if (amdgpu_encoder->rmx_type == RMX_OFF) { 1534 if ((mode->hdisplay != native_mode->hdisplay) || 1535 (mode->vdisplay != native_mode->vdisplay)) 1536 return MODE_PANEL; 1537 } 1538 } 1539 return MODE_OK; 1540 } else { 1541 if ((amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || 1542 (amdgpu_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) { 1543 return amdgpu_atombios_dp_mode_valid_helper(connector, mode); 1544 } else { 1545 if (connector->display_info.is_hdmi) { 1546 /* HDMI 1.3+ supports max clock of 340 Mhz */ 1547 if (mode->clock > 340000) 1548 return MODE_CLOCK_HIGH; 1549 } else { 1550 if (mode->clock > 165000) 1551 return MODE_CLOCK_HIGH; 1552 } 1553 } 1554 } 1555 1556 return MODE_OK; 1557 } 1558 1559 static int 1560 amdgpu_connector_late_register(struct drm_connector *connector) 1561 { 1562 struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector); 1563 int r = 0; 1564 1565 if (amdgpu_connector->ddc_bus->has_aux) { 1566 amdgpu_connector->ddc_bus->aux.dev = amdgpu_connector->base.kdev; 1567 r = drm_dp_aux_register(&amdgpu_connector->ddc_bus->aux); 1568 } 1569 1570 return r; 1571 } 1572 1573 static const struct drm_connector_helper_funcs amdgpu_connector_dp_helper_funcs = { 1574 .get_modes = amdgpu_connector_dp_get_modes, 1575 .mode_valid = amdgpu_connector_dp_mode_valid, 1576 .best_encoder = amdgpu_connector_dvi_encoder, 1577 }; 1578 1579 static const struct drm_connector_funcs amdgpu_connector_dp_funcs = { 1580 .dpms = drm_helper_connector_dpms, 1581 .detect = amdgpu_connector_dp_detect, 1582 .fill_modes = drm_helper_probe_single_connector_modes, 1583 .set_property = amdgpu_connector_set_property, 1584 .early_unregister = amdgpu_connector_unregister, 1585 .destroy = amdgpu_connector_destroy, 1586 .force = amdgpu_connector_dvi_force, 1587 .late_register = amdgpu_connector_late_register, 1588 }; 1589 1590 static const struct drm_connector_funcs amdgpu_connector_edp_funcs = { 1591 .dpms = drm_helper_connector_dpms, 1592 .detect = amdgpu_connector_dp_detect, 1593 .fill_modes = drm_helper_probe_single_connector_modes, 1594 .set_property = amdgpu_connector_set_lcd_property, 1595 .early_unregister = amdgpu_connector_unregister, 1596 .destroy = amdgpu_connector_destroy, 1597 .force = amdgpu_connector_dvi_force, 1598 .late_register = amdgpu_connector_late_register, 1599 }; 1600 1601 void 1602 amdgpu_connector_add(struct amdgpu_device *adev, 1603 uint32_t connector_id, 1604 uint32_t supported_device, 1605 int connector_type, 1606 struct amdgpu_i2c_bus_rec *i2c_bus, 1607 uint16_t connector_object_id, 1608 struct amdgpu_hpd *hpd, 1609 struct amdgpu_router *router) 1610 { 1611 struct drm_device *dev = adev_to_drm(adev); 1612 struct drm_connector *connector; 1613 struct drm_connector_list_iter iter; 1614 struct amdgpu_connector *amdgpu_connector; 1615 struct amdgpu_connector_atom_dig *amdgpu_dig_connector; 1616 struct drm_encoder *encoder; 1617 struct amdgpu_encoder *amdgpu_encoder; 1618 struct i2c_adapter *ddc = NULL; 1619 uint32_t subpixel_order = SubPixelNone; 1620 bool shared_ddc = false; 1621 bool is_dp_bridge = false; 1622 bool has_aux = false; 1623 1624 if (connector_type == DRM_MODE_CONNECTOR_Unknown) 1625 return; 1626 1627 /* see if we already added it */ 1628 drm_connector_list_iter_begin(dev, &iter); 1629 drm_for_each_connector_iter(connector, &iter) { 1630 amdgpu_connector = to_amdgpu_connector(connector); 1631 if (amdgpu_connector->connector_id == connector_id) { 1632 amdgpu_connector->devices |= supported_device; 1633 drm_connector_list_iter_end(&iter); 1634 return; 1635 } 1636 if (amdgpu_connector->ddc_bus && i2c_bus->valid) { 1637 if (amdgpu_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) { 1638 amdgpu_connector->shared_ddc = true; 1639 shared_ddc = true; 1640 } 1641 if (amdgpu_connector->router_bus && router->ddc_valid && 1642 (amdgpu_connector->router.router_id == router->router_id)) { 1643 amdgpu_connector->shared_ddc = false; 1644 shared_ddc = false; 1645 } 1646 } 1647 } 1648 drm_connector_list_iter_end(&iter); 1649 1650 /* check if it's a dp bridge */ 1651 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { 1652 amdgpu_encoder = to_amdgpu_encoder(encoder); 1653 if (amdgpu_encoder->devices & supported_device) { 1654 switch (amdgpu_encoder->encoder_id) { 1655 case ENCODER_OBJECT_ID_TRAVIS: 1656 case ENCODER_OBJECT_ID_NUTMEG: 1657 is_dp_bridge = true; 1658 break; 1659 default: 1660 break; 1661 } 1662 } 1663 } 1664 1665 amdgpu_connector = kzalloc(sizeof(struct amdgpu_connector), GFP_KERNEL); 1666 if (!amdgpu_connector) 1667 return; 1668 1669 connector = &amdgpu_connector->base; 1670 1671 amdgpu_connector->connector_id = connector_id; 1672 amdgpu_connector->devices = supported_device; 1673 amdgpu_connector->shared_ddc = shared_ddc; 1674 amdgpu_connector->connector_object_id = connector_object_id; 1675 amdgpu_connector->hpd = *hpd; 1676 1677 amdgpu_connector->router = *router; 1678 if (router->ddc_valid || router->cd_valid) { 1679 amdgpu_connector->router_bus = amdgpu_i2c_lookup(adev, &router->i2c_info); 1680 if (!amdgpu_connector->router_bus) 1681 DRM_ERROR("Failed to assign router i2c bus! Check dmesg for i2c errors.\n"); 1682 } 1683 1684 if (is_dp_bridge) { 1685 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 1686 if (!amdgpu_dig_connector) 1687 goto failed; 1688 amdgpu_connector->con_priv = amdgpu_dig_connector; 1689 if (i2c_bus->valid) { 1690 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1691 if (amdgpu_connector->ddc_bus) { 1692 has_aux = true; 1693 ddc = &amdgpu_connector->ddc_bus->adapter; 1694 } else { 1695 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1696 } 1697 } 1698 switch (connector_type) { 1699 case DRM_MODE_CONNECTOR_VGA: 1700 case DRM_MODE_CONNECTOR_DVIA: 1701 default: 1702 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1703 &amdgpu_connector_dp_funcs, 1704 connector_type, 1705 ddc); 1706 drm_connector_helper_add(&amdgpu_connector->base, 1707 &amdgpu_connector_dp_helper_funcs); 1708 connector->interlace_allowed = true; 1709 connector->doublescan_allowed = true; 1710 amdgpu_connector->dac_load_detect = true; 1711 drm_object_attach_property(&amdgpu_connector->base.base, 1712 adev->mode_info.load_detect_property, 1713 1); 1714 drm_object_attach_property(&amdgpu_connector->base.base, 1715 dev->mode_config.scaling_mode_property, 1716 DRM_MODE_SCALE_NONE); 1717 break; 1718 case DRM_MODE_CONNECTOR_DVII: 1719 case DRM_MODE_CONNECTOR_DVID: 1720 case DRM_MODE_CONNECTOR_HDMIA: 1721 case DRM_MODE_CONNECTOR_HDMIB: 1722 case DRM_MODE_CONNECTOR_DisplayPort: 1723 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1724 &amdgpu_connector_dp_funcs, 1725 connector_type, 1726 ddc); 1727 drm_connector_helper_add(&amdgpu_connector->base, 1728 &amdgpu_connector_dp_helper_funcs); 1729 drm_object_attach_property(&amdgpu_connector->base.base, 1730 adev->mode_info.underscan_property, 1731 UNDERSCAN_OFF); 1732 drm_object_attach_property(&amdgpu_connector->base.base, 1733 adev->mode_info.underscan_hborder_property, 1734 0); 1735 drm_object_attach_property(&amdgpu_connector->base.base, 1736 adev->mode_info.underscan_vborder_property, 1737 0); 1738 1739 drm_object_attach_property(&amdgpu_connector->base.base, 1740 dev->mode_config.scaling_mode_property, 1741 DRM_MODE_SCALE_NONE); 1742 1743 drm_object_attach_property(&amdgpu_connector->base.base, 1744 adev->mode_info.dither_property, 1745 AMDGPU_FMT_DITHER_DISABLE); 1746 1747 if (amdgpu_audio != 0) { 1748 drm_object_attach_property(&amdgpu_connector->base.base, 1749 adev->mode_info.audio_property, 1750 AMDGPU_AUDIO_AUTO); 1751 amdgpu_connector->audio = AMDGPU_AUDIO_AUTO; 1752 } 1753 1754 subpixel_order = SubPixelHorizontalRGB; 1755 connector->interlace_allowed = true; 1756 if (connector_type == DRM_MODE_CONNECTOR_HDMIB) 1757 connector->doublescan_allowed = true; 1758 else 1759 connector->doublescan_allowed = false; 1760 if (connector_type == DRM_MODE_CONNECTOR_DVII) { 1761 amdgpu_connector->dac_load_detect = true; 1762 drm_object_attach_property(&amdgpu_connector->base.base, 1763 adev->mode_info.load_detect_property, 1764 1); 1765 } 1766 break; 1767 case DRM_MODE_CONNECTOR_LVDS: 1768 case DRM_MODE_CONNECTOR_eDP: 1769 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1770 &amdgpu_connector_edp_funcs, 1771 connector_type, 1772 ddc); 1773 drm_connector_helper_add(&amdgpu_connector->base, 1774 &amdgpu_connector_dp_helper_funcs); 1775 drm_object_attach_property(&amdgpu_connector->base.base, 1776 dev->mode_config.scaling_mode_property, 1777 DRM_MODE_SCALE_FULLSCREEN); 1778 subpixel_order = SubPixelHorizontalRGB; 1779 connector->interlace_allowed = false; 1780 connector->doublescan_allowed = false; 1781 break; 1782 } 1783 } else { 1784 switch (connector_type) { 1785 case DRM_MODE_CONNECTOR_VGA: 1786 if (i2c_bus->valid) { 1787 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1788 if (!amdgpu_connector->ddc_bus) 1789 DRM_ERROR("VGA: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1790 else 1791 ddc = &amdgpu_connector->ddc_bus->adapter; 1792 } 1793 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1794 &amdgpu_connector_vga_funcs, 1795 connector_type, 1796 ddc); 1797 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs); 1798 amdgpu_connector->dac_load_detect = true; 1799 drm_object_attach_property(&amdgpu_connector->base.base, 1800 adev->mode_info.load_detect_property, 1801 1); 1802 drm_object_attach_property(&amdgpu_connector->base.base, 1803 dev->mode_config.scaling_mode_property, 1804 DRM_MODE_SCALE_NONE); 1805 /* no HPD on analog connectors */ 1806 amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE; 1807 connector->interlace_allowed = true; 1808 connector->doublescan_allowed = true; 1809 break; 1810 case DRM_MODE_CONNECTOR_DVIA: 1811 if (i2c_bus->valid) { 1812 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1813 if (!amdgpu_connector->ddc_bus) 1814 DRM_ERROR("DVIA: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1815 else 1816 ddc = &amdgpu_connector->ddc_bus->adapter; 1817 } 1818 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1819 &amdgpu_connector_vga_funcs, 1820 connector_type, 1821 ddc); 1822 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_vga_helper_funcs); 1823 amdgpu_connector->dac_load_detect = true; 1824 drm_object_attach_property(&amdgpu_connector->base.base, 1825 adev->mode_info.load_detect_property, 1826 1); 1827 drm_object_attach_property(&amdgpu_connector->base.base, 1828 dev->mode_config.scaling_mode_property, 1829 DRM_MODE_SCALE_NONE); 1830 /* no HPD on analog connectors */ 1831 amdgpu_connector->hpd.hpd = AMDGPU_HPD_NONE; 1832 connector->interlace_allowed = true; 1833 connector->doublescan_allowed = true; 1834 break; 1835 case DRM_MODE_CONNECTOR_DVII: 1836 case DRM_MODE_CONNECTOR_DVID: 1837 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 1838 if (!amdgpu_dig_connector) 1839 goto failed; 1840 amdgpu_connector->con_priv = amdgpu_dig_connector; 1841 if (i2c_bus->valid) { 1842 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1843 if (!amdgpu_connector->ddc_bus) 1844 DRM_ERROR("DVI: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1845 else 1846 ddc = &amdgpu_connector->ddc_bus->adapter; 1847 } 1848 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1849 &amdgpu_connector_dvi_funcs, 1850 connector_type, 1851 ddc); 1852 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs); 1853 subpixel_order = SubPixelHorizontalRGB; 1854 drm_object_attach_property(&amdgpu_connector->base.base, 1855 adev->mode_info.coherent_mode_property, 1856 1); 1857 drm_object_attach_property(&amdgpu_connector->base.base, 1858 adev->mode_info.underscan_property, 1859 UNDERSCAN_OFF); 1860 drm_object_attach_property(&amdgpu_connector->base.base, 1861 adev->mode_info.underscan_hborder_property, 1862 0); 1863 drm_object_attach_property(&amdgpu_connector->base.base, 1864 adev->mode_info.underscan_vborder_property, 1865 0); 1866 drm_object_attach_property(&amdgpu_connector->base.base, 1867 dev->mode_config.scaling_mode_property, 1868 DRM_MODE_SCALE_NONE); 1869 1870 if (amdgpu_audio != 0) { 1871 drm_object_attach_property(&amdgpu_connector->base.base, 1872 adev->mode_info.audio_property, 1873 AMDGPU_AUDIO_AUTO); 1874 amdgpu_connector->audio = AMDGPU_AUDIO_AUTO; 1875 } 1876 drm_object_attach_property(&amdgpu_connector->base.base, 1877 adev->mode_info.dither_property, 1878 AMDGPU_FMT_DITHER_DISABLE); 1879 if (connector_type == DRM_MODE_CONNECTOR_DVII) { 1880 amdgpu_connector->dac_load_detect = true; 1881 drm_object_attach_property(&amdgpu_connector->base.base, 1882 adev->mode_info.load_detect_property, 1883 1); 1884 } 1885 connector->interlace_allowed = true; 1886 if (connector_type == DRM_MODE_CONNECTOR_DVII) 1887 connector->doublescan_allowed = true; 1888 else 1889 connector->doublescan_allowed = false; 1890 break; 1891 case DRM_MODE_CONNECTOR_HDMIA: 1892 case DRM_MODE_CONNECTOR_HDMIB: 1893 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 1894 if (!amdgpu_dig_connector) 1895 goto failed; 1896 amdgpu_connector->con_priv = amdgpu_dig_connector; 1897 if (i2c_bus->valid) { 1898 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1899 if (!amdgpu_connector->ddc_bus) 1900 DRM_ERROR("HDMI: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1901 else 1902 ddc = &amdgpu_connector->ddc_bus->adapter; 1903 } 1904 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1905 &amdgpu_connector_dvi_funcs, 1906 connector_type, 1907 ddc); 1908 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dvi_helper_funcs); 1909 drm_object_attach_property(&amdgpu_connector->base.base, 1910 adev->mode_info.coherent_mode_property, 1911 1); 1912 drm_object_attach_property(&amdgpu_connector->base.base, 1913 adev->mode_info.underscan_property, 1914 UNDERSCAN_OFF); 1915 drm_object_attach_property(&amdgpu_connector->base.base, 1916 adev->mode_info.underscan_hborder_property, 1917 0); 1918 drm_object_attach_property(&amdgpu_connector->base.base, 1919 adev->mode_info.underscan_vborder_property, 1920 0); 1921 drm_object_attach_property(&amdgpu_connector->base.base, 1922 dev->mode_config.scaling_mode_property, 1923 DRM_MODE_SCALE_NONE); 1924 if (amdgpu_audio != 0) { 1925 drm_object_attach_property(&amdgpu_connector->base.base, 1926 adev->mode_info.audio_property, 1927 AMDGPU_AUDIO_AUTO); 1928 amdgpu_connector->audio = AMDGPU_AUDIO_AUTO; 1929 } 1930 drm_object_attach_property(&amdgpu_connector->base.base, 1931 adev->mode_info.dither_property, 1932 AMDGPU_FMT_DITHER_DISABLE); 1933 subpixel_order = SubPixelHorizontalRGB; 1934 connector->interlace_allowed = true; 1935 if (connector_type == DRM_MODE_CONNECTOR_HDMIB) 1936 connector->doublescan_allowed = true; 1937 else 1938 connector->doublescan_allowed = false; 1939 break; 1940 case DRM_MODE_CONNECTOR_DisplayPort: 1941 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 1942 if (!amdgpu_dig_connector) 1943 goto failed; 1944 amdgpu_connector->con_priv = amdgpu_dig_connector; 1945 if (i2c_bus->valid) { 1946 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1947 if (amdgpu_connector->ddc_bus) { 1948 has_aux = true; 1949 ddc = &amdgpu_connector->ddc_bus->adapter; 1950 } else { 1951 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 1952 } 1953 } 1954 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 1955 &amdgpu_connector_dp_funcs, 1956 connector_type, 1957 ddc); 1958 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs); 1959 subpixel_order = SubPixelHorizontalRGB; 1960 drm_object_attach_property(&amdgpu_connector->base.base, 1961 adev->mode_info.coherent_mode_property, 1962 1); 1963 drm_object_attach_property(&amdgpu_connector->base.base, 1964 adev->mode_info.underscan_property, 1965 UNDERSCAN_OFF); 1966 drm_object_attach_property(&amdgpu_connector->base.base, 1967 adev->mode_info.underscan_hborder_property, 1968 0); 1969 drm_object_attach_property(&amdgpu_connector->base.base, 1970 adev->mode_info.underscan_vborder_property, 1971 0); 1972 drm_object_attach_property(&amdgpu_connector->base.base, 1973 dev->mode_config.scaling_mode_property, 1974 DRM_MODE_SCALE_NONE); 1975 if (amdgpu_audio != 0) { 1976 drm_object_attach_property(&amdgpu_connector->base.base, 1977 adev->mode_info.audio_property, 1978 AMDGPU_AUDIO_AUTO); 1979 amdgpu_connector->audio = AMDGPU_AUDIO_AUTO; 1980 } 1981 drm_object_attach_property(&amdgpu_connector->base.base, 1982 adev->mode_info.dither_property, 1983 AMDGPU_FMT_DITHER_DISABLE); 1984 connector->interlace_allowed = true; 1985 /* in theory with a DP to VGA converter... */ 1986 connector->doublescan_allowed = false; 1987 break; 1988 case DRM_MODE_CONNECTOR_eDP: 1989 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 1990 if (!amdgpu_dig_connector) 1991 goto failed; 1992 amdgpu_connector->con_priv = amdgpu_dig_connector; 1993 if (i2c_bus->valid) { 1994 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 1995 if (amdgpu_connector->ddc_bus) { 1996 has_aux = true; 1997 ddc = &amdgpu_connector->ddc_bus->adapter; 1998 } else { 1999 DRM_ERROR("DP: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 2000 } 2001 } 2002 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 2003 &amdgpu_connector_edp_funcs, 2004 connector_type, 2005 ddc); 2006 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_dp_helper_funcs); 2007 drm_object_attach_property(&amdgpu_connector->base.base, 2008 dev->mode_config.scaling_mode_property, 2009 DRM_MODE_SCALE_FULLSCREEN); 2010 subpixel_order = SubPixelHorizontalRGB; 2011 connector->interlace_allowed = false; 2012 connector->doublescan_allowed = false; 2013 break; 2014 case DRM_MODE_CONNECTOR_LVDS: 2015 amdgpu_dig_connector = kzalloc(sizeof(struct amdgpu_connector_atom_dig), GFP_KERNEL); 2016 if (!amdgpu_dig_connector) 2017 goto failed; 2018 amdgpu_connector->con_priv = amdgpu_dig_connector; 2019 if (i2c_bus->valid) { 2020 amdgpu_connector->ddc_bus = amdgpu_i2c_lookup(adev, i2c_bus); 2021 if (!amdgpu_connector->ddc_bus) 2022 DRM_ERROR("LVDS: Failed to assign ddc bus! Check dmesg for i2c errors.\n"); 2023 else 2024 ddc = &amdgpu_connector->ddc_bus->adapter; 2025 } 2026 drm_connector_init_with_ddc(dev, &amdgpu_connector->base, 2027 &amdgpu_connector_lvds_funcs, 2028 connector_type, 2029 ddc); 2030 drm_connector_helper_add(&amdgpu_connector->base, &amdgpu_connector_lvds_helper_funcs); 2031 drm_object_attach_property(&amdgpu_connector->base.base, 2032 dev->mode_config.scaling_mode_property, 2033 DRM_MODE_SCALE_FULLSCREEN); 2034 subpixel_order = SubPixelHorizontalRGB; 2035 connector->interlace_allowed = false; 2036 connector->doublescan_allowed = false; 2037 break; 2038 } 2039 } 2040 2041 if (amdgpu_connector->hpd.hpd == AMDGPU_HPD_NONE) { 2042 if (i2c_bus->valid) { 2043 connector->polled = DRM_CONNECTOR_POLL_CONNECT | 2044 DRM_CONNECTOR_POLL_DISCONNECT; 2045 } 2046 } else 2047 connector->polled = DRM_CONNECTOR_POLL_HPD; 2048 2049 connector->display_info.subpixel_order = subpixel_order; 2050 2051 if (has_aux) 2052 amdgpu_atombios_dp_aux_init(amdgpu_connector); 2053 2054 if (connector_type == DRM_MODE_CONNECTOR_DisplayPort || 2055 connector_type == DRM_MODE_CONNECTOR_eDP) { 2056 drm_connector_attach_dp_subconnector_property(&amdgpu_connector->base); 2057 } 2058 2059 return; 2060 2061 failed: 2062 drm_connector_cleanup(connector); 2063 kfree(connector); 2064 } 2065