drivers/video/omap2/displays/panel-generic-dpi.c

   1 /*
   2  * Generic DPI Panels support
   3  *
   4  * Copyright (C) 2010 Canonical Ltd.
   5  * Author: Bryan Wu <bryan.wu@canonical.com>
   6  *
   7  * LCD panel driver for Sharp LQ043T1DG01
   8  *
   9  * Copyright (C) 2009 Texas Instruments Inc
  10  * Author: Vaibhav Hiremath <hvaibhav@ti.com>
  11  *
  12  * LCD panel driver for Toppoly TDO35S
  13  *
  14  * Copyright (C) 2009 CompuLab, Ltd.
  15  * Author: Mike Rapoport <mike@compulab.co.il>
  16  *
  17  * Copyright (C) 2008 Nokia Corporation
  18  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
  19  *
  20  * This program is free software; you can redistribute it and/or modify it
  21  * under the terms of the GNU General Public License version 2 as published by
  22  * the Free Software Foundation.
  23  *
  24  * This program is distributed in the hope that it will be useful, but WITHOUT
  25  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  26  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  27  * more details.
  28  *
  29  * You should have received a copy of the GNU General Public License along with
  30  * this program.  If not, see <http://www.gnu.org/licenses/>.
  31  */
  32
  33 #include <linux/module.h>
  34 #include <linux/delay.h>
  35 #include <linux/slab.h>
  36 #include <video/omapdss.h>
  37
  38 #include <video/omap-panel-generic-dpi.h>
  39
  40 struct panel_config {
  41         struct omap_video_timings timings;
  42
  43         int acbi;       /* ac-bias pin transitions per interrupt */
  44         /* Unit: line clocks */
  45         int acb;        /* ac-bias pin frequency */
  46
  47         enum omap_panel_config config;
  48
  49         int power_on_delay;
  50         int power_off_delay;
  51
  52         /*
  53          * Used to match device to panel configuration
  54          * when use generic panel driver
  55          */
  56         const char *name;
  57 };
  58
  59 /* Panel configurations */
  60 static struct panel_config generic_dpi_panels[] = {
  61         /* Sharp LQ043T1DG01 */
  62         {
  63                 {
  64                         .x_res          = 480,
  65                         .y_res          = 272,
  66
  67                         .pixel_clock    = 9000,
  68
  69                         .hsw            = 42,
  70                         .hfp            = 3,
  71                         .hbp            = 2,
  72
  73                         .vsw            = 11,
  74                         .vfp            = 3,
  75                         .vbp            = 2,
  76                 },
  77                 .acbi                   = 0x0,
  78                 .acb                    = 0x0,
  79                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
  80                                         OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
  81                 .power_on_delay         = 50,
  82                 .power_off_delay        = 100,
  83                 .name                   = "sharp_lq",
  84         },
  85
  86         /* Sharp LS037V7DW01 */
  87         {
  88                 {
  89                         .x_res          = 480,
  90                         .y_res          = 640,
  91
  92                         .pixel_clock    = 19200,
  93
  94                         .hsw            = 2,
  95                         .hfp            = 1,
  96                         .hbp            = 28,
  97
  98                         .vsw            = 1,
  99                         .vfp            = 1,
 100                         .vbp            = 1,
 101                 },
 102                 .acbi                   = 0x0,
 103                 .acb                    = 0x28,
 104                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 105                                                 OMAP_DSS_LCD_IHS,
 106                 .power_on_delay         = 50,
 107                 .power_off_delay        = 100,
 108                 .name                   = "sharp_ls",
 109         },
 110
 111         /* Toppoly TDO35S */
 112         {
 113                 {
 114                         .x_res          = 480,
 115                         .y_res          = 640,
 116
 117                         .pixel_clock    = 26000,
 118
 119                         .hfp            = 104,
 120                         .hsw            = 8,
 121                         .hbp            = 8,
 122
 123                         .vfp            = 4,
 124                         .vsw            = 2,
 125                         .vbp            = 2,
 126                 },
 127                 .acbi                   = 0x0,
 128                 .acb                    = 0x0,
 129                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 130                                         OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC |
 131                                         OMAP_DSS_LCD_ONOFF,
 132                 .power_on_delay         = 0,
 133                 .power_off_delay        = 0,
 134                 .name                   = "toppoly_tdo35s",
 135         },
 136
 137         /* Samsung LTE430WQ-F0C */
 138         {
 139                 {
 140                         .x_res          = 480,
 141                         .y_res          = 272,
 142
 143                         .pixel_clock    = 9200,
 144
 145                         .hfp            = 8,
 146                         .hsw            = 41,
 147                         .hbp            = 45 - 41,
 148
 149                         .vfp            = 4,
 150                         .vsw            = 10,
 151                         .vbp            = 12 - 10,
 152                 },
 153                 .acbi                   = 0x0,
 154                 .acb                    = 0x0,
 155                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 156                                                 OMAP_DSS_LCD_IHS,
 157                 .power_on_delay         = 0,
 158                 .power_off_delay        = 0,
 159                 .name                   = "samsung_lte430wq_f0c",
 160         },
 161
 162         /* Seiko 70WVW1TZ3Z3 */
 163         {
 164                 {
 165                         .x_res          = 800,
 166                         .y_res          = 480,
 167
 168                         .pixel_clock    = 33000,
 169
 170                         .hsw            = 128,
 171                         .hfp            = 10,
 172                         .hbp            = 10,
 173
 174                         .vsw            = 2,
 175                         .vfp            = 4,
 176                         .vbp            = 11,
 177                 },
 178                 .acbi                   = 0x0,
 179                 .acb                    = 0x0,
 180                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 181                                                 OMAP_DSS_LCD_IHS,
 182                 .power_on_delay         = 0,
 183                 .power_off_delay        = 0,
 184                 .name                   = "seiko_70wvw1tz3",
 185         },
 186
 187         /* Powertip PH480272T */
 188         {
 189                 {
 190                         .x_res          = 480,
 191                         .y_res          = 272,
 192
 193                         .pixel_clock    = 9000,
 194
 195                         .hsw            = 40,
 196                         .hfp            = 2,
 197                         .hbp            = 2,
 198
 199                         .vsw            = 10,
 200                         .vfp            = 2,
 201                         .vbp            = 2,
 202                 },
 203                 .acbi                   = 0x0,
 204                 .acb                    = 0x0,
 205                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 206                                           OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
 207                 .power_on_delay         = 0,
 208                 .power_off_delay        = 0,
 209                 .name                   = "powertip_ph480272t",
 210         },
 211
 212         /* Innolux AT070TN83 */
 213         {
 214                 {
 215                         .x_res          = 800,
 216                         .y_res          = 480,
 217
 218                         .pixel_clock    = 40000,
 219
 220                         .hsw            = 48,
 221                         .hfp            = 1,
 222                         .hbp            = 1,
 223
 224                         .vsw            = 3,
 225                         .vfp            = 12,
 226                         .vbp            = 25,
 227                 },
 228                 .acbi                   = 0x0,
 229                 .acb                    = 0x28,
 230                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 231                                           OMAP_DSS_LCD_IHS,
 232                 .power_on_delay         = 0,
 233                 .power_off_delay        = 0,
 234                 .name                   = "innolux_at070tn83",
 235         },
 236
 237         /* NEC NL2432DR22-11B */
 238         {
 239                 {
 240                         .x_res          = 240,
 241                         .y_res          = 320,
 242
 243                         .pixel_clock    = 5400,
 244
 245                         .hsw            = 3,
 246                         .hfp            = 3,
 247                         .hbp            = 39,
 248
 249                         .vsw            = 1,
 250                         .vfp            = 2,
 251                         .vbp            = 7,
 252                 },
 253                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 254                                                 OMAP_DSS_LCD_IHS,
 255                 .name                   = "nec_nl2432dr22-11b",
 256         },
 257
 258         /* Unknown panel used in OMAP H4 */
 259         {
 260                 {
 261                         .x_res          = 240,
 262                         .y_res          = 320,
 263
 264                         .pixel_clock    = 6250,
 265
 266                         .hsw            = 15,
 267                         .hfp            = 15,
 268                         .hbp            = 60,
 269
 270                         .vsw            = 1,
 271                         .vfp            = 1,
 272                         .vbp            = 1,
 273                 },
 274                 .config                 = OMAP_DSS_LCD_TFT,
 275
 276                 .name                   = "h4",
 277         },
 278
 279         /* Unknown panel used in Samsung OMAP2 Apollon */
 280         {
 281                 {
 282                         .x_res          = 480,
 283                         .y_res          = 272,
 284
 285                         .pixel_clock    = 6250,
 286
 287                         .hsw            = 41,
 288                         .hfp            = 2,
 289                         .hbp            = 2,
 290
 291                         .vsw            = 10,
 292                         .vfp            = 2,
 293                         .vbp            = 2,
 294                 },
 295                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 296                                                 OMAP_DSS_LCD_IHS,
 297
 298                 .name                   = "apollon",
 299         },
 300         /* FocalTech ETM070003DH6 */
 301         {
 302                 {
 303                         .x_res          = 800,
 304                         .y_res          = 480,
 305
 306                         .pixel_clock    = 28000,
 307
 308                         .hsw            = 48,
 309                         .hfp            = 40,
 310                         .hbp            = 40,
 311
 312                         .vsw            = 3,
 313                         .vfp            = 13,
 314                         .vbp            = 29,
 315                 },
 316                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 317                                           OMAP_DSS_LCD_IHS,
 318                 .name                   = "focaltech_etm070003dh6",
 319         },
 320
 321         /* Microtips Technologies - UMSH-8173MD */
 322         {
 323                 {
 324                         .x_res          = 800,
 325                         .y_res          = 480,
 326
 327                         .pixel_clock    = 34560,
 328
 329                         .hsw            = 13,
 330                         .hfp            = 101,
 331                         .hbp            = 101,
 332
 333                         .vsw            = 23,
 334                         .vfp            = 1,
 335                         .vbp            = 1,
 336                 },
 337                 .acbi                   = 0x0,
 338                 .acb                    = 0x0,
 339                 .config                 = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
 340                                           OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC,
 341                 .power_on_delay         = 0,
 342                 .power_off_delay        = 0,
 343                 .name                   = "microtips_umsh_8173md",
 344         },
 345 };
 346
 347 struct panel_drv_data {
 348
 349         struct omap_dss_device *dssdev;
 350
 351         struct panel_config *panel_config;
 352 };
 353
 354 static inline struct panel_generic_dpi_data
 355 *get_panel_data(const struct omap_dss_device *dssdev)
 356 {
 357         return (struct panel_generic_dpi_data *) dssdev->data;
 358 }
 359
 360 static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev)
 361 {
 362         int r;
 363         struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
 364         struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
 365         struct panel_config *panel_config = drv_data->panel_config;
 366
 367         if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
 368                 return 0;
 369
 370         r = omapdss_dpi_display_enable(dssdev);
 371         if (r)
 372                 goto err0;
 373
 374         /* wait couple of vsyncs until enabling the LCD */
 375         if (panel_config->power_on_delay)
 376                 msleep(panel_config->power_on_delay);
 377
 378         if (panel_data->platform_enable) {
 379                 r = panel_data->platform_enable(dssdev);
 380                 if (r)
 381                         goto err1;
 382         }
 383
 384         return 0;
 385 err1:
 386         omapdss_dpi_display_disable(dssdev);
 387 err0:
 388         return r;
 389 }
 390
 391 static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev)
 392 {
 393         struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
 394         struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
 395         struct panel_config *panel_config = drv_data->panel_config;
 396
 397         if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
 398                 return;
 399
 400         if (panel_data->platform_disable)
 401                 panel_data->platform_disable(dssdev);
 402
 403         /* wait couple of vsyncs after disabling the LCD */
 404         if (panel_config->power_off_delay)
 405                 msleep(panel_config->power_off_delay);
 406
 407         omapdss_dpi_display_disable(dssdev);
 408 }
 409
 410 static int generic_dpi_panel_probe(struct omap_dss_device *dssdev)
 411 {
 412         struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
 413         struct panel_config *panel_config = NULL;
 414         struct panel_drv_data *drv_data = NULL;
 415         int i;
 416
 417         dev_dbg(&dssdev->dev, "probe\n");
 418
 419         if (!panel_data || !panel_data->name)
 420                 return -EINVAL;
 421
 422         for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
 423                 if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) {
 424                         panel_config = &generic_dpi_panels[i];
 425                         break;
 426                 }
 427         }
 428
 429         if (!panel_config)
 430                 return -EINVAL;
 431
 432         dssdev->panel.config = panel_config->config;
 433         dssdev->panel.timings = panel_config->timings;
 434         dssdev->panel.acb = panel_config->acb;
 435         dssdev->panel.acbi = panel_config->acbi;
 436
 437         drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
 438         if (!drv_data)
 439                 return -ENOMEM;
 440
 441         drv_data->dssdev = dssdev;
 442         drv_data->panel_config = panel_config;
 443
 444         dev_set_drvdata(&dssdev->dev, drv_data);
 445
 446         return 0;
 447 }
 448
 449 static void __exit generic_dpi_panel_remove(struct omap_dss_device *dssdev)
 450 {
 451         struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
 452
 453         dev_dbg(&dssdev->dev, "remove\n");
 454
 455         kfree(drv_data);
 456
 457         dev_set_drvdata(&dssdev->dev, NULL);
 458 }
 459
 460 static int generic_dpi_panel_enable(struct omap_dss_device *dssdev)
 461 {
 462         int r = 0;
 463
 464         r = generic_dpi_panel_power_on(dssdev);
 465         if (r)
 466                 return r;
 467
 468         dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 469
 470         return 0;
 471 }
 472
 473 static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
 474 {
 475         generic_dpi_panel_power_off(dssdev);
 476
 477         dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 478 }
 479
 480 static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev)
 481 {
 482         generic_dpi_panel_power_off(dssdev);
 483
 484         dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
 485
 486         return 0;
 487 }
 488
 489 static int generic_dpi_panel_resume(struct omap_dss_device *dssdev)
 490 {
 491         int r = 0;
 492
 493         r = generic_dpi_panel_power_on(dssdev);
 494         if (r)
 495                 return r;
 496
 497         dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 498
 499         return 0;
 500 }
 501
 502 static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
 503                 struct omap_video_timings *timings)
 504 {
 505         dpi_set_timings(dssdev, timings);
 506 }
 507
 508 static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev,
 509                 struct omap_video_timings *timings)
 510 {
 511         *timings = dssdev->panel.timings;
 512 }
 513
 514 static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev,
 515                 struct omap_video_timings *timings)
 516 {
 517         return dpi_check_timings(dssdev, timings);
 518 }
 519
 520 static struct omap_dss_driver dpi_driver = {
 521         .probe          = generic_dpi_panel_probe,
 522         .remove         = __exit_p(generic_dpi_panel_remove),
 523
 524         .enable         = generic_dpi_panel_enable,
 525         .disable        = generic_dpi_panel_disable,
 526         .suspend        = generic_dpi_panel_suspend,
 527         .resume         = generic_dpi_panel_resume,
 528
 529         .set_timings    = generic_dpi_panel_set_timings,
 530         .get_timings    = generic_dpi_panel_get_timings,
 531         .check_timings  = generic_dpi_panel_check_timings,
 532
 533         .driver         = {
 534                 .name   = "generic_dpi_panel",
 535                 .owner  = THIS_MODULE,
 536         },
 537 };
 538
 539 static int __init generic_dpi_panel_drv_init(void)
 540 {
 541         return omap_dss_register_driver(&dpi_driver);
 542 }
 543
 544 static void __exit generic_dpi_panel_drv_exit(void)
 545 {
 546         omap_dss_unregister_driver(&dpi_driver);
 547 }
 548
 549 module_init(generic_dpi_panel_drv_init);
 550 module_exit(generic_dpi_panel_drv_exit);
 551 MODULE_LICENSE("GPL");