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 36 struct 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 66 struct 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 80 static inline struct panel_simple *to_panel_simple(struct drm_panel *panel) 81 { 82 return container_of(panel, struct panel_simple, base); 83 } 84 85 static 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 } 117 118 static 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 } 137 138 static 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 } 157 158 static 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 } 182 183 static 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 } 202 203 static 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 } 223 224 static 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 }; 231 232 static 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; 296 297 free_ddc: 298 if (panel->ddc) 299 put_device(&panel->ddc->dev); 300 free_backlight: 301 if (panel->backlight) 302 put_device(&panel->backlight->dev); 303 304 return err; 305 } 306 307 static 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 } 324 325 static 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 } 331 332 static 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 }; 344 345 static 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 }; 354 355 static const struct drm_display_mode auo_b133xtn01_mode = { 356 .clock = 69500, 357 .hdisplay = 1366, 358 .hsync_start = 1366 + 48, 359 .hsync_end = 1366 + 48 + 32, 360 .htotal = 1366 + 48 + 32 + 20, 361 .vdisplay = 768, 362 .vsync_start = 768 + 3, 363 .vsync_end = 768 + 3 + 6, 364 .vtotal = 768 + 3 + 6 + 13, 365 .vrefresh = 60, 366 }; 367 368 static const struct panel_desc auo_b133xtn01 = { 369 .modes = &auo_b133xtn01_mode, 370 .num_modes = 1, 371 .bpc = 6, 372 .size = { 373 .width = 293, 374 .height = 165, 375 }, 376 }; 377 378 static const struct drm_display_mode auo_b133htn01_mode = { 379 .clock = 150660, 380 .hdisplay = 1920, 381 .hsync_start = 1920 + 172, 382 .hsync_end = 1920 + 172 + 80, 383 .htotal = 1920 + 172 + 80 + 60, 384 .vdisplay = 1080, 385 .vsync_start = 1080 + 25, 386 .vsync_end = 1080 + 25 + 10, 387 .vtotal = 1080 + 25 + 10 + 10, 388 .vrefresh = 60, 389 }; 390 391 static const struct panel_desc auo_b133htn01 = { 392 .modes = &auo_b133htn01_mode, 393 .num_modes = 1, 394 .size = { 395 .width = 293, 396 .height = 165, 397 }, 398 .delay = { 399 .prepare = 105, 400 .enable = 20, 401 .unprepare = 50, 402 }, 403 }; 404 405 static const struct drm_display_mode chunghwa_claa101wa01a_mode = { 406 .clock = 72070, 407 .hdisplay = 1366, 408 .hsync_start = 1366 + 58, 409 .hsync_end = 1366 + 58 + 58, 410 .htotal = 1366 + 58 + 58 + 58, 411 .vdisplay = 768, 412 .vsync_start = 768 + 4, 413 .vsync_end = 768 + 4 + 4, 414 .vtotal = 768 + 4 + 4 + 4, 415 .vrefresh = 60, 416 }; 417 418 static const struct panel_desc chunghwa_claa101wa01a = { 419 .modes = &chunghwa_claa101wa01a_mode, 420 .num_modes = 1, 421 .bpc = 6, 422 .size = { 423 .width = 220, 424 .height = 120, 425 }, 426 }; 427 428 static const struct drm_display_mode chunghwa_claa101wb01_mode = { 429 .clock = 69300, 430 .hdisplay = 1366, 431 .hsync_start = 1366 + 48, 432 .hsync_end = 1366 + 48 + 32, 433 .htotal = 1366 + 48 + 32 + 20, 434 .vdisplay = 768, 435 .vsync_start = 768 + 16, 436 .vsync_end = 768 + 16 + 8, 437 .vtotal = 768 + 16 + 8 + 16, 438 .vrefresh = 60, 439 }; 440 441 static const struct panel_desc chunghwa_claa101wb01 = { 442 .modes = &chunghwa_claa101wb01_mode, 443 .num_modes = 1, 444 .bpc = 6, 445 .size = { 446 .width = 223, 447 .height = 125, 448 }, 449 }; 450 451 static const struct drm_display_mode edt_et057090dhu_mode = { 452 .clock = 25175, 453 .hdisplay = 640, 454 .hsync_start = 640 + 16, 455 .hsync_end = 640 + 16 + 30, 456 .htotal = 640 + 16 + 30 + 114, 457 .vdisplay = 480, 458 .vsync_start = 480 + 10, 459 .vsync_end = 480 + 10 + 3, 460 .vtotal = 480 + 10 + 3 + 32, 461 .vrefresh = 60, 462 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC, 463 }; 464 465 static const struct panel_desc edt_et057090dhu = { 466 .modes = &edt_et057090dhu_mode, 467 .num_modes = 1, 468 .bpc = 6, 469 .size = { 470 .width = 115, 471 .height = 86, 472 }, 473 }; 474 475 static const struct drm_display_mode edt_etm0700g0dh6_mode = { 476 .clock = 33260, 477 .hdisplay = 800, 478 .hsync_start = 800 + 40, 479 .hsync_end = 800 + 40 + 128, 480 .htotal = 800 + 40 + 128 + 88, 481 .vdisplay = 480, 482 .vsync_start = 480 + 10, 483 .vsync_end = 480 + 10 + 2, 484 .vtotal = 480 + 10 + 2 + 33, 485 .vrefresh = 60, 486 .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, 487 }; 488 489 static const struct panel_desc edt_etm0700g0dh6 = { 490 .modes = &edt_etm0700g0dh6_mode, 491 .num_modes = 1, 492 .bpc = 6, 493 .size = { 494 .width = 152, 495 .height = 91, 496 }, 497 }; 498 499 static const struct drm_display_mode foxlink_fl500wvr00_a0t_mode = { 500 .clock = 32260, 501 .hdisplay = 800, 502 .hsync_start = 800 + 168, 503 .hsync_end = 800 + 168 + 64, 504 .htotal = 800 + 168 + 64 + 88, 505 .vdisplay = 480, 506 .vsync_start = 480 + 37, 507 .vsync_end = 480 + 37 + 2, 508 .vtotal = 480 + 37 + 2 + 8, 509 .vrefresh = 60, 510 }; 511 512 static const struct panel_desc foxlink_fl500wvr00_a0t = { 513 .modes = &foxlink_fl500wvr00_a0t_mode, 514 .num_modes = 1, 515 .size = { 516 .width = 108, 517 .height = 65, 518 }, 519 }; 520 521 static const struct drm_display_mode innolux_n116bge_mode = { 522 .clock = 71000, 523 .hdisplay = 1366, 524 .hsync_start = 1366 + 64, 525 .hsync_end = 1366 + 64 + 6, 526 .htotal = 1366 + 64 + 6 + 64, 527 .vdisplay = 768, 528 .vsync_start = 768 + 8, 529 .vsync_end = 768 + 8 + 4, 530 .vtotal = 768 + 8 + 4 + 8, 531 .vrefresh = 60, 532 .flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC, 533 }; 534 535 static const struct panel_desc innolux_n116bge = { 536 .modes = &innolux_n116bge_mode, 537 .num_modes = 1, 538 .bpc = 6, 539 .size = { 540 .width = 256, 541 .height = 144, 542 }, 543 }; 544 545 static const struct drm_display_mode innolux_n156bge_l21_mode = { 546 .clock = 69300, 547 .hdisplay = 1366, 548 .hsync_start = 1366 + 16, 549 .hsync_end = 1366 + 16 + 34, 550 .htotal = 1366 + 16 + 34 + 50, 551 .vdisplay = 768, 552 .vsync_start = 768 + 2, 553 .vsync_end = 768 + 2 + 6, 554 .vtotal = 768 + 2 + 6 + 12, 555 .vrefresh = 60, 556 }; 557 558 static const struct panel_desc innolux_n156bge_l21 = { 559 .modes = &innolux_n156bge_l21_mode, 560 .num_modes = 1, 561 .bpc = 6, 562 .size = { 563 .width = 344, 564 .height = 193, 565 }, 566 }; 567 568 static const struct drm_display_mode lg_lp129qe_mode = { 569 .clock = 285250, 570 .hdisplay = 2560, 571 .hsync_start = 2560 + 48, 572 .hsync_end = 2560 + 48 + 32, 573 .htotal = 2560 + 48 + 32 + 80, 574 .vdisplay = 1700, 575 .vsync_start = 1700 + 3, 576 .vsync_end = 1700 + 3 + 10, 577 .vtotal = 1700 + 3 + 10 + 36, 578 .vrefresh = 60, 579 }; 580 581 static const struct panel_desc lg_lp129qe = { 582 .modes = &lg_lp129qe_mode, 583 .num_modes = 1, 584 .bpc = 8, 585 .size = { 586 .width = 272, 587 .height = 181, 588 }, 589 }; 590 591 static const struct drm_display_mode samsung_ltn101nt05_mode = { 592 .clock = 54030, 593 .hdisplay = 1024, 594 .hsync_start = 1024 + 24, 595 .hsync_end = 1024 + 24 + 136, 596 .htotal = 1024 + 24 + 136 + 160, 597 .vdisplay = 600, 598 .vsync_start = 600 + 3, 599 .vsync_end = 600 + 3 + 6, 600 .vtotal = 600 + 3 + 6 + 61, 601 .vrefresh = 60, 602 }; 603 604 static const struct panel_desc samsung_ltn101nt05 = { 605 .modes = &samsung_ltn101nt05_mode, 606 .num_modes = 1, 607 .bpc = 6, 608 .size = { 609 .width = 1024, 610 .height = 600, 611 }, 612 }; 613 614 static const struct of_device_id platform_of_match[] = { 615 { 616 .compatible = "auo,b101aw03", 617 .data = &auo_b101aw03, 618 }, { 619 .compatible = "auo,b133htn01", 620 .data = &auo_b133htn01, 621 }, { 622 .compatible = "auo,b133xtn01", 623 .data = &auo_b133xtn01, 624 }, { 625 .compatible = "chunghwa,claa101wa01a", 626 .data = &chunghwa_claa101wa01a 627 }, { 628 .compatible = "chunghwa,claa101wb01", 629 .data = &chunghwa_claa101wb01 630 }, { 631 .compatible = "edt,et057090dhu", 632 .data = &edt_et057090dhu, 633 }, { 634 .compatible = "edt,et070080dh6", 635 .data = &edt_etm0700g0dh6, 636 }, { 637 .compatible = "edt,etm0700g0dh6", 638 .data = &edt_etm0700g0dh6, 639 }, { 640 .compatible = "foxlink,fl500wvr00-a0t", 641 .data = &foxlink_fl500wvr00_a0t, 642 }, { 643 .compatible = "innolux,n116bge", 644 .data = &innolux_n116bge, 645 }, { 646 .compatible = "innolux,n156bge-l21", 647 .data = &innolux_n156bge_l21, 648 }, { 649 .compatible = "lg,lp129qe", 650 .data = &lg_lp129qe, 651 }, { 652 .compatible = "samsung,ltn101nt05", 653 .data = &samsung_ltn101nt05, 654 }, { 655 /* sentinel */ 656 } 657 }; 658 MODULE_DEVICE_TABLE(of, platform_of_match); 659 660 static int panel_simple_platform_probe(struct platform_device *pdev) 661 { 662 const struct of_device_id *id; 663 664 id = of_match_node(platform_of_match, pdev->dev.of_node); 665 if (!id) 666 return -ENODEV; 667 668 return panel_simple_probe(&pdev->dev, id->data); 669 } 670 671 static int panel_simple_platform_remove(struct platform_device *pdev) 672 { 673 return panel_simple_remove(&pdev->dev); 674 } 675 676 static void panel_simple_platform_shutdown(struct platform_device *pdev) 677 { 678 panel_simple_shutdown(&pdev->dev); 679 } 680 681 static struct platform_driver panel_simple_platform_driver = { 682 .driver = { 683 .name = "panel-simple", 684 .owner = THIS_MODULE, 685 .of_match_table = platform_of_match, 686 }, 687 .probe = panel_simple_platform_probe, 688 .remove = panel_simple_platform_remove, 689 .shutdown = panel_simple_platform_shutdown, 690 }; 691 692 struct panel_desc_dsi { 693 struct panel_desc desc; 694 695 unsigned long flags; 696 enum mipi_dsi_pixel_format format; 697 unsigned int lanes; 698 }; 699 700 static const struct drm_display_mode lg_ld070wx3_sl01_mode = { 701 .clock = 71000, 702 .hdisplay = 800, 703 .hsync_start = 800 + 32, 704 .hsync_end = 800 + 32 + 1, 705 .htotal = 800 + 32 + 1 + 57, 706 .vdisplay = 1280, 707 .vsync_start = 1280 + 28, 708 .vsync_end = 1280 + 28 + 1, 709 .vtotal = 1280 + 28 + 1 + 14, 710 .vrefresh = 60, 711 }; 712 713 static const struct panel_desc_dsi lg_ld070wx3_sl01 = { 714 .desc = { 715 .modes = &lg_ld070wx3_sl01_mode, 716 .num_modes = 1, 717 .size = { 718 .width = 94, 719 .height = 151, 720 }, 721 }, 722 .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS, 723 .format = MIPI_DSI_FMT_RGB888, 724 .lanes = 4, 725 }; 726 727 static const struct drm_display_mode lg_lh500wx1_sd03_mode = { 728 .clock = 67000, 729 .hdisplay = 720, 730 .hsync_start = 720 + 12, 731 .hsync_end = 720 + 12 + 4, 732 .htotal = 720 + 12 + 4 + 112, 733 .vdisplay = 1280, 734 .vsync_start = 1280 + 8, 735 .vsync_end = 1280 + 8 + 4, 736 .vtotal = 1280 + 8 + 4 + 12, 737 .vrefresh = 60, 738 }; 739 740 static const struct panel_desc_dsi lg_lh500wx1_sd03 = { 741 .desc = { 742 .modes = &lg_lh500wx1_sd03_mode, 743 .num_modes = 1, 744 .size = { 745 .width = 62, 746 .height = 110, 747 }, 748 }, 749 .flags = MIPI_DSI_MODE_VIDEO, 750 .format = MIPI_DSI_FMT_RGB888, 751 .lanes = 4, 752 }; 753 754 static const struct drm_display_mode panasonic_vvx10f004b00_mode = { 755 .clock = 157200, 756 .hdisplay = 1920, 757 .hsync_start = 1920 + 154, 758 .hsync_end = 1920 + 154 + 16, 759 .htotal = 1920 + 154 + 16 + 32, 760 .vdisplay = 1200, 761 .vsync_start = 1200 + 17, 762 .vsync_end = 1200 + 17 + 2, 763 .vtotal = 1200 + 17 + 2 + 16, 764 .vrefresh = 60, 765 }; 766 767 static const struct panel_desc_dsi panasonic_vvx10f004b00 = { 768 .desc = { 769 .modes = &panasonic_vvx10f004b00_mode, 770 .num_modes = 1, 771 .size = { 772 .width = 217, 773 .height = 136, 774 }, 775 }, 776 .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | 777 MIPI_DSI_CLOCK_NON_CONTINUOUS, 778 .format = MIPI_DSI_FMT_RGB888, 779 .lanes = 4, 780 }; 781 782 static const struct of_device_id dsi_of_match[] = { 783 { 784 .compatible = "lg,ld070wx3-sl01", 785 .data = &lg_ld070wx3_sl01 786 }, { 787 .compatible = "lg,lh500wx1-sd03", 788 .data = &lg_lh500wx1_sd03 789 }, { 790 .compatible = "panasonic,vvx10f004b00", 791 .data = &panasonic_vvx10f004b00 792 }, { 793 /* sentinel */ 794 } 795 }; 796 MODULE_DEVICE_TABLE(of, dsi_of_match); 797 798 static int panel_simple_dsi_probe(struct mipi_dsi_device *dsi) 799 { 800 const struct panel_desc_dsi *desc; 801 const struct of_device_id *id; 802 int err; 803 804 id = of_match_node(dsi_of_match, dsi->dev.of_node); 805 if (!id) 806 return -ENODEV; 807 808 desc = id->data; 809 810 err = panel_simple_probe(&dsi->dev, &desc->desc); 811 if (err < 0) 812 return err; 813 814 dsi->mode_flags = desc->flags; 815 dsi->format = desc->format; 816 dsi->lanes = desc->lanes; 817 818 return mipi_dsi_attach(dsi); 819 } 820 821 static int panel_simple_dsi_remove(struct mipi_dsi_device *dsi) 822 { 823 int err; 824 825 err = mipi_dsi_detach(dsi); 826 if (err < 0) 827 dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err); 828 829 return panel_simple_remove(&dsi->dev); 830 } 831 832 static void panel_simple_dsi_shutdown(struct mipi_dsi_device *dsi) 833 { 834 panel_simple_shutdown(&dsi->dev); 835 } 836 837 static struct mipi_dsi_driver panel_simple_dsi_driver = { 838 .driver = { 839 .name = "panel-simple-dsi", 840 .owner = THIS_MODULE, 841 .of_match_table = dsi_of_match, 842 }, 843 .probe = panel_simple_dsi_probe, 844 .remove = panel_simple_dsi_remove, 845 .shutdown = panel_simple_dsi_shutdown, 846 }; 847 848 static int __init panel_simple_init(void) 849 { 850 int err; 851 852 err = platform_driver_register(&panel_simple_platform_driver); 853 if (err < 0) 854 return err; 855 856 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) { 857 err = mipi_dsi_driver_register(&panel_simple_dsi_driver); 858 if (err < 0) 859 return err; 860 } 861 862 return 0; 863 } 864 module_init(panel_simple_init); 865 866 static void __exit panel_simple_exit(void) 867 { 868 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 869 mipi_dsi_driver_unregister(&panel_simple_dsi_driver); 870 871 platform_driver_unregister(&panel_simple_platform_driver); 872 } 873 module_exit(panel_simple_exit); 874 875 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); 876 MODULE_DESCRIPTION("DRM Driver for Simple Panels"); 877 MODULE_LICENSE("GPL and additional rights"); 878