1/* 2 * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sub license, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the 12 * next paragraph) shall be included in all copies or substantial portions 13 * 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 NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24#include <linux/backlight.h> 25#include <linux/gpio/consumer.h> 26#include <linux/module.h> 27#include <linux/of_platform.h> 28#include <linux/platform_device.h> 29#include <linux/regulator/consumer.h> 30 31#include <drm/drmP.h> 32#include <drm/drm_crtc.h> 33#include <drm/drm_mipi_dsi.h> 34#include <drm/drm_panel.h> 35 36struct panel_desc { 37 const struct drm_display_mode *modes; 38 unsigned int num_modes; 39 40 unsigned int bpc; 41 42 struct { 43 unsigned int width; 44 unsigned int height; 45 } size; 46 47 /** 48 * @prepare: the time (in milliseconds) that it takes for the panel to 49 * become ready and start receiving video data 50 * @enable: the time (in milliseconds) that it takes for the panel to 51 * display the first valid frame after starting to receive 52 * video data 53 * @disable: the time (in milliseconds) that it takes for the panel to 54 * turn the display off (no content is visible) 55 * @unprepare: the time (in milliseconds) that it takes for the panel 56 * to power itself down completely 57 */ 58 struct { 59 unsigned int prepare; 60 unsigned int enable; 61 unsigned int disable; 62 unsigned int unprepare; 63 } delay; 64}; 65 66struct panel_simple { 67 struct drm_panel base; 68 bool prepared; 69 bool enabled; 70 71 const struct panel_desc *desc; 72 73 struct backlight_device *backlight; 74 struct regulator *supply; 75 struct i2c_adapter *ddc; 76 77 struct gpio_desc *enable_gpio; 78}; 79 80static inline struct panel_simple *to_panel_simple(struct drm_panel *panel) 81{ 82 return container_of(panel, struct panel_simple, base); 83} 84 85static int panel_simple_get_fixed_modes(struct panel_simple *panel) 86{ 87 struct drm_connector *connector = panel->base.connector; 88 struct drm_device *drm = panel->base.drm; 89 struct drm_display_mode *mode; 90 unsigned int i, num = 0; 91 92 if (!panel->desc) 93 return 0; 94 95 for (i = 0; i < panel->desc->num_modes; i++) { 96 const struct drm_display_mode *m = &panel->desc->modes[i]; 97 98 mode = drm_mode_duplicate(drm, m); 99 if (!mode) { 100 dev_err(drm->dev, "failed to add mode %ux%u@%u\n", 101 m->hdisplay, m->vdisplay, m->vrefresh); 102 continue; 103 } 104 105 drm_mode_set_name(mode); 106 107 drm_mode_probed_add(connector, mode); 108 num++; 109 } 110 111 connector->display_info.bpc = panel->desc->bpc; 112 connector->display_info.width_mm = panel->desc->size.width; 113 connector->display_info.height_mm = panel->desc->size.height; 114 115 return num; 116} 117 118static int panel_simple_disable(struct drm_panel *panel) 119{ 120 struct panel_simple *p = to_panel_simple(panel); 121 122 if (!p->enabled) 123 return 0; 124 125 if (p->backlight) { 126 p->backlight->props.power = FB_BLANK_POWERDOWN; 127 backlight_update_status(p->backlight); 128 } 129 130 if (p->desc->delay.disable) 131 msleep(p->desc->delay.disable); 132 133 p->enabled = false; 134 135 return 0; 136} 137 138static int panel_simple_unprepare(struct drm_panel *panel) 139{ 140 struct panel_simple *p = to_panel_simple(panel); 141 142 if (!p->prepared) 143 return 0; 144 145 if (p->enable_gpio) 146 gpiod_set_value_cansleep(p->enable_gpio, 0); 147 148 regulator_disable(p->supply); 149 150 if (p->desc->delay.unprepare) 151 msleep(p->desc->delay.unprepare); 152 153 p->prepared = false; 154 155 return 0; 156} 157 158static int panel_simple_prepare(struct drm_panel *panel) 159{ 160 struct panel_simple *p = to_panel_simple(panel); 161 int err; 162 163 if (p->prepared) 164 return 0; 165 166 err = regulator_enable(p->supply); 167 if (err < 0) { 168 dev_err(panel->dev, "failed to enable supply: %d\n", err); 169 return err; 170 } 171 172 if (p->enable_gpio) 173 gpiod_set_value_cansleep(p->enable_gpio, 1); 174 175 if (p->desc->delay.prepare) 176 msleep(p->desc->delay.prepare); 177 178 p->prepared = true; 179 180 return 0; 181} 182 183static int panel_simple_enable(struct drm_panel *panel) 184{ 185 struct panel_simple *p = to_panel_simple(panel); 186 187 if (p->enabled) 188 return 0; 189 190 if (p->desc->delay.enable) 191 msleep(p->desc->delay.enable); 192 193 if (p->backlight) { 194 p->backlight->props.power = FB_BLANK_UNBLANK; 195 backlight_update_status(p->backlight); 196 } 197 198 p->enabled = true; 199 200 return 0; 201} 202 203static int panel_simple_get_modes(struct drm_panel *panel) 204{ 205 struct panel_simple *p = to_panel_simple(panel); 206 int num = 0; 207 208 /* probe EDID if a DDC bus is available */ 209 if (p->ddc) { 210 struct edid *edid = drm_get_edid(panel->connector, p->ddc); 211 drm_mode_connector_update_edid_property(panel->connector, edid); 212 if (edid) { 213 num += drm_add_edid_modes(panel->connector, edid); 214 kfree(edid); 215 } 216 } 217 218 /* add hard-coded panel modes */ 219 num += panel_simple_get_fixed_modes(p); 220 221 return num; 222} 223 224static const struct drm_panel_funcs panel_simple_funcs = { 225 .disable = panel_simple_disable, 226 .unprepare = panel_simple_unprepare, 227 .prepare = panel_simple_prepare, 228 .enable = panel_simple_enable, 229 .get_modes = panel_simple_get_modes, 230}; 231 232static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) 233{ 234 struct device_node *backlight, *ddc; 235 struct panel_simple *panel; 236 int err; 237 238 panel = devm_kzalloc(dev, sizeof(*panel), GFP_KERNEL); 239 if (!panel) 240 return -ENOMEM; 241 242 panel->enabled = false; 243 panel->prepared = false; 244 panel->desc = desc; 245 246 panel->supply = devm_regulator_get(dev, "power"); 247 if (IS_ERR(panel->supply)) 248 return PTR_ERR(panel->supply); 249 250 panel->enable_gpio = devm_gpiod_get_optional(dev, "enable"); 251 if (IS_ERR(panel->enable_gpio)) { 252 err = PTR_ERR(panel->enable_gpio); 253 dev_err(dev, "failed to request GPIO: %d\n", err); 254 return err; 255 } 256 257 if (panel->enable_gpio) { 258 err = gpiod_direction_output(panel->enable_gpio, 0); 259 if (err < 0) { 260 dev_err(dev, "failed to setup GPIO: %d\n", err); 261 return err; 262 } 263 } 264 265 backlight = of_parse_phandle(dev->of_node, "backlight", 0); 266 if (backlight) { 267 panel->backlight = of_find_backlight_by_node(backlight); 268 of_node_put(backlight); 269 270 if (!panel->backlight) 271 return -EPROBE_DEFER; 272 } 273 274 ddc = of_parse_phandle(dev->of_node, "ddc-i2c-bus", 0); 275 if (ddc) { 276 panel->ddc = of_find_i2c_adapter_by_node(ddc); 277 of_node_put(ddc); 278 279 if (!panel->ddc) { 280 err = -EPROBE_DEFER; 281 goto free_backlight; 282 } 283 } 284 285 drm_panel_init(&panel->base); 286 panel->base.dev = dev; 287 panel->base.funcs = &panel_simple_funcs; 288 289 err = drm_panel_add(&panel->base); 290 if (err < 0) 291 goto free_ddc; 292 293 dev_set_drvdata(dev, panel); 294 295 return 0; 296 297free_ddc: 298 if (panel->ddc) 299 put_device(&panel->ddc->dev); 300free_backlight: 301 if (panel->backlight) 302 put_device(&panel->backlight->dev); 303 304 return err; 305} 306 307static int panel_simple_remove(struct device *dev) 308{ 309 struct panel_simple *panel = dev_get_drvdata(dev); 310 311 drm_panel_detach(&panel->base); 312 drm_panel_remove(&panel->base); 313 314 panel_simple_disable(&panel->base); 315 316 if (panel->ddc) 317 put_device(&panel->ddc->dev); 318 319 if (panel->backlight) 320 put_device(&panel->backlight->dev); 321 322 return 0; 323} 324 325static void panel_simple_shutdown(struct device *dev) 326{ 327 struct panel_simple *panel = dev_get_drvdata(dev); 328 329 panel_simple_disable(&panel->base); 330} 331 332static const struct drm_display_mode auo_b101aw03_mode = { 333 .clock = 51450, 334 .hdisplay = 1024, 335 .hsync_start = 1024 + 156, 336 .hsync_end = 1024 + 156 + 8, 337 .htotal = 1024 + 156 + 8 + 156, 338 .vdisplay = 600, 339 .vsync_start = 600 + 16, 340 .vsync_end = 600 + 16 + 6, 341 .vtotal = 600 + 16 + 6 + 16, 342 .vrefresh = 60, 343}; 344 345static const struct panel_desc auo_b101aw03 = { 346 .modes = &auo_b101aw03_mode, 347 .num_modes = 1, 348 .bpc = 6, 349 .size = { 350 .width = 223, 351 .height = 125, 352 }, 353}; 354 355static const struct drm_display_mode auo_b101xtn01_mode = { 356 .clock = 72000, 357 .hdisplay = 1366, 358 .hsync_start = 1366 + 20, 359 .hsync_end = 1366 + 20 + 70, 360 .htotal = 1366 + 20 + 70, 361 .vdisplay = 768, 362 .vsync_start = 768 + 14, 363 .vsync_end = 768 + 14 + 42, 364 .vtotal = 768 + 14 + 42, 365 .vrefresh = 60, 366 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, 367}; 368 369static const struct panel_desc auo_b101xtn01 = { 370 .modes = &auo_b101xtn01_mode, 371 .num_modes = 1, 372 .bpc = 6, 373 .size = { 374 .width = 223, 375 .height = 125, 376 }, 377}; 378 379static const struct drm_display_mode auo_b133xtn01_mode = { 380 .clock = 69500, 381 .hdisplay = 1366, 382 .hsync_start = 1366 + 48, 383 .hsync_end = 1366 + 48 + 32, 384 .htotal = 1366 + 48 + 32 + 20, 385 .vdisplay = 768, 386 .vsync_start = 768 + 3, 387 .vsync_end = 768 + 3 + 6, 388 .vtotal = 768 + 3 + 6 + 13, 389 .vrefresh = 60, 390}; 391 392static const struct panel_desc auo_b133xtn01 = { 393 .modes = &auo_b133xtn01_mode, 394 .num_modes = 1, 395 .bpc = 6, 396 .size = { 397 .width = 293, 398 .height = 165, 399 }, 400}; 401 402static const struct drm_display_mode auo_b133htn01_mode = { 403 .clock = 150660, 404 .hdisplay = 1920, 405 .hsync_start = 1920 + 172, 406 .hsync_end = 1920 + 172 + 80, 407 .htotal = 1920 + 172 + 80 + 60, 408 .vdisplay = 1080, 409 .vsync_start = 1080 + 25, 410 .vsync_end = 1080 + 25 + 10, 411 .vtotal = 1080 + 25 + 10 + 10, 412 .vrefresh = 60, 413}; 414 415static const struct panel_desc auo_b133htn01 = { 416 .modes = &auo_b133htn01_mode, 417 .num_modes = 1, 418 .size = { 419 .width = 293, 420 .height = 165, 421 }, 422 .delay = { 423 .prepare = 105, 424 .enable = 20, 425 .unprepare = 50, 426 }, 427}; 428 429static const struct drm_display_mode chunghwa_claa101wa01a_mode = { 430 .clock = 72070, 431 .hdisplay = 1366, 432 .hsync_start = 1366 + 58, 433 .hsync_end = 1366 + 58 + 58, 434 .htotal = 1366 + 58 + 58 + 58, 435 .vdisplay = 768, 436 .vsync_start = 768 + 4, 437 .vsync_end = 768 + 4 + 4, 438 .vtotal = 768 + 4 + 4 + 4, 439 .vrefresh = 60, 440}; 441 442static const struct panel_desc chunghwa_claa101wa01a = { 443 .modes = &chunghwa_claa101wa01a_mode, 444 .num_modes = 1, 445 .bpc = 6, 446 .size = { 447 .width = 220, 448 .height = 120, 449 }, 450}; 451 452static const struct drm_display_mode chunghwa_claa101wb01_mode = { 453 .clock = 69300, 454 .hdisplay = 1366, 455 .hsync_start = 1366 + 48, 456 .hsync_end = 1366 + 48 + 32, 457 .htotal = 1366 + 48 + 32 + 20, 458 .vdisplay = 768, 459 .vsync_start = 768 + 16, 460 .vsync_end = 768 + 16 + 8, 461 .vtotal = 768 + 16 + 8 + 16, 462 .vrefresh = 60, 463}; 464 465static const struct panel_desc chunghwa_claa101wb01 = { 466 .modes = &chunghwa_claa101wb01_mode, 467 .num_modes = 1, 468 .bpc = 6, 469 .size = { 470 .width = 223, 471 .height = 125, 472 }, 473}; 474 475static const struct drm_display_mode edt_et057090dhu_mode = { 476 .clock = 25175, 477 .hdisplay = 640, 478 .hsync_start = 640 + 16, 479 .hsync_end = 640 + 16 + 30, 480 .htotal = 640 + 16 + 30 + 114, 481 .vdisplay = 480, 482 .vsync_start = 480 + 10, 483 .vsync_end = 480 + 10 + 3, 484 .vtotal = 480 + 10 + 3 + 32, 485 .vrefresh = 60, 486 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, 487}; 488 489static const struct panel_desc edt_et057090dhu = { 490 .modes = &edt_et057090dhu_mode, 491 .num_modes = 1, 492 .bpc = 6, 493 .size = { 494 .width = 115, 495 .height = 86, 496 }, 497}; 498 499static const struct drm_display_mode edt_etm0700g0dh6_mode = { 500 .clock = 33260, 501 .hdisplay = 800, 502 .hsync_start = 800 + 40, 503 .hsync_end = 800 + 40 + 128, 504 .htotal = 800 + 40 + 128 + 88, 505 .vdisplay = 480, 506 .vsync_start = 480 + 10, 507 .vsync_end = 480 + 10 + 2, 508 .vtotal = 480 + 10 + 2 + 33, 509 .vrefresh = 60, 510 .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, 511}; 512 513static const struct panel_desc edt_etm0700g0dh6 = { 514 .modes = &edt_etm0700g0dh6_mode, 515 .num_modes = 1, 516 .bpc = 6, 517 .size = { 518 .width = 152, 519 .height = 91, 520 }, 521}; 522 523static const struct drm_display_mode foxlink_fl500wvr00_a0t_mode = { 524 .clock = 32260, 525 .hdisplay = 800, 526 .hsync_start = 800 + 168, 527 .hsync_end = 800 + 168 + 64, 528 .htotal = 800 + 168 + 64 + 88, 529 .vdisplay = 480, 530 .vsync_start = 480 + 37, 531 .vsync_end = 480 + 37 + 2, 532 .vtotal = 480 + 37 + 2 + 8, 533 .vrefresh = 60, 534}; 535 536static const struct panel_desc foxlink_fl500wvr00_a0t = { 537 .modes = &foxlink_fl500wvr00_a0t_mode, 538 .num_modes = 1, 539 .size = { 540 .width = 108, 541 .height = 65, 542 }, 543}; 544 545static const struct drm_display_mode innolux_n116bge_mode = { 546 .clock = 71000, 547 .hdisplay = 1366, 548 .hsync_start = 1366 + 64, 549 .hsync_end = 1366 + 64 + 6, 550 .htotal = 1366 + 64 + 6 + 64, 551 .vdisplay = 768, 552 .vsync_start = 768 + 8, 553 .vsync_end = 768 + 8 + 4, 554 .vtotal = 768 + 8 + 4 + 8, 555 .vrefresh = 60, 556 .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, 557}; 558 559static const struct panel_desc innolux_n116bge = { 560 .modes = &innolux_n116bge_mode, 561 .num_modes = 1, 562 .bpc = 6, 563 .size = { 564 .width = 256, 565 .height = 144, 566 }, 567}; 568 569static const struct drm_display_mode innolux_n156bge_l21_mode = { 570 .clock = 69300, 571 .hdisplay = 1366, 572 .hsync_start = 1366 + 16, 573 .hsync_end = 1366 + 16 + 34, 574 .htotal = 1366 + 16 + 34 + 50, 575 .vdisplay = 768, 576 .vsync_start = 768 + 2, 577 .vsync_end = 768 + 2 + 6, 578 .vtotal = 768 + 2 + 6 + 12, 579 .vrefresh = 60, 580}; 581 582static const struct panel_desc innolux_n156bge_l21 = { 583 .modes = &innolux_n156bge_l21_mode, 584 .num_modes = 1, 585 .bpc = 6, 586 .size = { 587 .width = 344, 588 .height = 193, 589 }, 590}; 591 592static const struct drm_display_mode lg_lp129qe_mode = { 593 .clock = 285250, 594 .hdisplay = 2560, 595 .hsync_start = 2560 + 48, 596 .hsync_end = 2560 + 48 + 32, 597 .htotal = 2560 + 48 + 32 + 80, 598 .vdisplay = 1700, 599 .vsync_start = 1700 + 3, 600 .vsync_end = 1700 + 3 + 10, 601 .vtotal = 1700 + 3 + 10 + 36, 602 .vrefresh = 60, 603}; 604 605static const struct panel_desc lg_lp129qe = { 606 .modes = &lg_lp129qe_mode, 607 .num_modes = 1, 608 .bpc = 8, 609 .size = { 610 .width = 272, 611 .height = 181, 612 }, 613}; 614 615static const struct drm_display_mode samsung_ltn101nt05_mode = { 616 .clock = 54030, 617 .hdisplay = 1024, 618 .hsync_start = 1024 + 24, 619 .hsync_end = 1024 + 24 + 136, 620 .htotal = 1024 + 24 + 136 + 160, 621 .vdisplay = 600, 622 .vsync_start = 600 + 3, 623 .vsync_end = 600 + 3 + 6, 624 .vtotal = 600 + 3 + 6 + 61, 625 .vrefresh = 60, 626}; 627 628static const struct panel_desc samsung_ltn101nt05 = { 629 .modes = &samsung_ltn101nt05_mode, 630 .num_modes = 1, 631 .bpc = 6, 632 .size = { 633 .width = 1024, 634 .height = 600, 635 }, 636}; 637 638static const struct of_device_id platform_of_match[] = { 639 { 640 .compatible = "auo,b101aw03", 641 .data = &auo_b101aw03, 642 }, { 643 .compatible = "auo,b101xtn01", 644 .data = &auo_b101xtn01, 645 }, { 646 .compatible = "auo,b133htn01", 647 .data = &auo_b133htn01, 648 }, { 649 .compatible = "auo,b133xtn01", 650 .data = &auo_b133xtn01, 651 }, { 652 .compatible = "chunghwa,claa101wa01a", 653 .data = &chunghwa_claa101wa01a 654 }, { 655 .compatible = "chunghwa,claa101wb01", 656 .data = &chunghwa_claa101wb01 657 }, { 658 .compatible = "edt,et057090dhu", 659 .data = &edt_et057090dhu, 660 }, { 661 .compatible = "edt,et070080dh6", 662 .data = &edt_etm0700g0dh6, 663 }, { 664 .compatible = "edt,etm0700g0dh6", 665 .data = &edt_etm0700g0dh6, 666 }, { 667 .compatible = "foxlink,fl500wvr00-a0t", 668 .data = &foxlink_fl500wvr00_a0t, 669 }, { 670 .compatible = "innolux,n116bge", 671 .data = &innolux_n116bge, 672 }, { 673 .compatible = "innolux,n156bge-l21", 674 .data = &innolux_n156bge_l21, 675 }, { 676 .compatible = "lg,lp129qe", 677 .data = &lg_lp129qe, 678 }, { 679 .compatible = "samsung,ltn101nt05", 680 .data = &samsung_ltn101nt05, 681 }, { 682 /* sentinel */ 683 } 684}; 685MODULE_DEVICE_TABLE(of, platform_of_match); 686 687static int panel_simple_platform_probe(struct platform_device *pdev) 688{ 689 const struct of_device_id *id; 690 691 id = of_match_node(platform_of_match, pdev->dev.of_node); 692 if (!id) 693 return -ENODEV; 694 695 return panel_simple_probe(&pdev->dev, id->data); 696} 697 698static int panel_simple_platform_remove(struct platform_device *pdev) 699{ 700 return panel_simple_remove(&pdev->dev); 701} 702 703static void panel_simple_platform_shutdown(struct platform_device *pdev) 704{ 705 panel_simple_shutdown(&pdev->dev); 706} 707 708static struct platform_driver panel_simple_platform_driver = { 709 .driver = { 710 .name = "panel-simple", 711 .owner = THIS_MODULE, 712 .of_match_table = platform_of_match, 713 }, 714 .probe = panel_simple_platform_probe, 715 .remove = panel_simple_platform_remove, 716 .shutdown = panel_simple_platform_shutdown, 717}; 718 719struct panel_desc_dsi { 720 struct panel_desc desc; 721 722 unsigned long flags; 723 enum mipi_dsi_pixel_format format; 724 unsigned int lanes; 725}; 726 727static const struct drm_display_mode lg_ld070wx3_sl01_mode = { 728 .clock = 71000, 729 .hdisplay = 800, 730 .hsync_start = 800 + 32, 731 .hsync_end = 800 + 32 + 1, 732 .htotal = 800 + 32 + 1 + 57, 733 .vdisplay = 1280, 734 .vsync_start = 1280 + 28, 735 .vsync_end = 1280 + 28 + 1, 736 .vtotal = 1280 + 28 + 1 + 14, 737 .vrefresh = 60, 738}; 739 740static const struct panel_desc_dsi lg_ld070wx3_sl01 = { 741 .desc = { 742 .modes = &lg_ld070wx3_sl01_mode, 743 .num_modes = 1, 744 .size = { 745 .width = 94, 746 .height = 151, 747 }, 748 }, 749 .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS, 750 .format = MIPI_DSI_FMT_RGB888, 751 .lanes = 4, 752}; 753 754static const struct drm_display_mode lg_lh500wx1_sd03_mode = { 755 .clock = 67000, 756 .hdisplay = 720, 757 .hsync_start = 720 + 12, 758 .hsync_end = 720 + 12 + 4, 759 .htotal = 720 + 12 + 4 + 112, 760 .vdisplay = 1280, 761 .vsync_start = 1280 + 8, 762 .vsync_end = 1280 + 8 + 4, 763 .vtotal = 1280 + 8 + 4 + 12, 764 .vrefresh = 60, 765}; 766 767static const struct panel_desc_dsi lg_lh500wx1_sd03 = { 768 .desc = { 769 .modes = &lg_lh500wx1_sd03_mode, 770 .num_modes = 1, 771 .size = { 772 .width = 62, 773 .height = 110, 774 }, 775 }, 776 .flags = MIPI_DSI_MODE_VIDEO, 777 .format = MIPI_DSI_FMT_RGB888, 778 .lanes = 4, 779}; 780 781static const struct drm_display_mode panasonic_vvx10f004b00_mode = { 782 .clock = 157200, 783 .hdisplay = 1920, 784 .hsync_start = 1920 + 154, 785 .hsync_end = 1920 + 154 + 16, 786 .htotal = 1920 + 154 + 16 + 32, 787 .vdisplay = 1200, 788 .vsync_start = 1200 + 17, 789 .vsync_end = 1200 + 17 + 2, 790 .vtotal = 1200 + 17 + 2 + 16, 791 .vrefresh = 60, 792}; 793 794static const struct panel_desc_dsi panasonic_vvx10f004b00 = { 795 .desc = { 796 .modes = &panasonic_vvx10f004b00_mode, 797 .num_modes = 1, 798 .size = { 799 .width = 217, 800 .height = 136, 801 }, 802 }, 803 .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | 804 MIPI_DSI_CLOCK_NON_CONTINUOUS, 805 .format = MIPI_DSI_FMT_RGB888, 806 .lanes = 4, 807}; 808 809static const struct of_device_id dsi_of_match[] = { 810 { 811 .compatible = "lg,ld070wx3-sl01", 812 .data = &lg_ld070wx3_sl01 813 }, { 814 .compatible = "lg,lh500wx1-sd03", 815 .data = &lg_lh500wx1_sd03 816 }, { 817 .compatible = "panasonic,vvx10f004b00", 818 .data = &panasonic_vvx10f004b00 819 }, { 820 /* sentinel */ 821 } 822}; 823MODULE_DEVICE_TABLE(of, dsi_of_match); 824 825static int panel_simple_dsi_probe(struct mipi_dsi_device *dsi) 826{ 827 const struct panel_desc_dsi *desc; 828 const struct of_device_id *id; 829 int err; 830 831 id = of_match_node(dsi_of_match, dsi->dev.of_node); 832 if (!id) 833 return -ENODEV; 834 835 desc = id->data; 836 837 err = panel_simple_probe(&dsi->dev, &desc->desc); 838 if (err < 0) 839 return err; 840 841 dsi->mode_flags = desc->flags; 842 dsi->format = desc->format; 843 dsi->lanes = desc->lanes; 844 845 return mipi_dsi_attach(dsi); 846} 847 848static int panel_simple_dsi_remove(struct mipi_dsi_device *dsi) 849{ 850 int err; 851 852 err = mipi_dsi_detach(dsi); 853 if (err < 0) 854 dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err); 855 856 return panel_simple_remove(&dsi->dev); 857} 858 859static void panel_simple_dsi_shutdown(struct mipi_dsi_device *dsi) 860{ 861 panel_simple_shutdown(&dsi->dev); 862} 863 864static struct mipi_dsi_driver panel_simple_dsi_driver = { 865 .driver = { 866 .name = "panel-simple-dsi", 867 .owner = THIS_MODULE, 868 .of_match_table = dsi_of_match, 869 }, 870 .probe = panel_simple_dsi_probe, 871 .remove = panel_simple_dsi_remove, 872 .shutdown = panel_simple_dsi_shutdown, 873}; 874 875static int __init panel_simple_init(void) 876{ 877 int err; 878 879 err = platform_driver_register(&panel_simple_platform_driver); 880 if (err < 0) 881 return err; 882 883 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) { 884 err = mipi_dsi_driver_register(&panel_simple_dsi_driver); 885 if (err < 0) 886 return err; 887 } 888 889 return 0; 890} 891module_init(panel_simple_init); 892 893static void __exit panel_simple_exit(void) 894{ 895 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 896 mipi_dsi_driver_unregister(&panel_simple_dsi_driver); 897 898 platform_driver_unregister(&panel_simple_platform_driver); 899} 900module_exit(panel_simple_exit); 901 902MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); 903MODULE_DESCRIPTION("DRM Driver for Simple Panels"); 904MODULE_LICENSE("GPL and additional rights"); 905