drivers/gpu/drm/panel/panel-simple.c

   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_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
 369 static 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
 379 static 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
 392 static 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
 402 static 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
 415 static 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
 429 static 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
 442 static 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
 452 static 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
 465 static 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
 475 static 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
 489 static 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
 499 static 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
 513 static 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
 523 static 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
 536 static 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
 545 static 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
 559 static 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
 569 static 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
 582 static 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
 592 static 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
 605 static 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
 615 static 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
 628 static 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
 638 static 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 };
 685 MODULE_DEVICE_TABLE(of, platform_of_match);
 686
 687 static 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
 698 static int panel_simple_platform_remove(struct platform_device *pdev)
 699 {
 700         return panel_simple_remove(&pdev->dev);
 701 }
 702
 703 static void panel_simple_platform_shutdown(struct platform_device *pdev)
 704 {
 705         panel_simple_shutdown(&pdev->dev);
 706 }
 707
 708 static 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
 719 struct 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
 727 static 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
 740 static 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
 754 static 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
 767 static 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
 781 static 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
 794 static 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
 809 static 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 };
 823 MODULE_DEVICE_TABLE(of, dsi_of_match);
 824
 825 static 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
 848 static 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
 859 static void panel_simple_dsi_shutdown(struct mipi_dsi_device *dsi)
 860 {
 861         panel_simple_shutdown(&dsi->dev);
 862 }
 863
 864 static 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
 875 static 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 }
 891 module_init(panel_simple_init);
 892
 893 static 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 }
 900 module_exit(panel_simple_exit);
 901
 902 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
 903 MODULE_DESCRIPTION("DRM Driver for Simple Panels");
 904 MODULE_LICENSE("GPL and additional rights");