2 * Generic DPI Panels support
4 * Copyright (C) 2010 Canonical Ltd.
5 * Author: Bryan Wu <bryan.wu@canonical.com>
7 * LCD panel driver for Sharp LQ043T1DG01
9 * Copyright (C) 2009 Texas Instruments Inc
10 * Author: Vaibhav Hiremath <hvaibhav@ti.com>
12 * LCD panel driver for Toppoly TDO35S
14 * Copyright (C) 2009 CompuLab, Ltd.
15 * Author: Mike Rapoport <mike@compulab.co.il>
17 * Copyright (C) 2008 Nokia Corporation
18 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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.
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
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/>.
33 #include <linux/module.h>
34 #include <linux/delay.h>
35 #include <linux/slab.h>
36 #include <video/omapdss.h>
38 #include <video/omap-panel-generic-dpi.h>
41 struct omap_video_timings timings;
43 int acbi; /* ac-bias pin transitions per interrupt */
44 /* Unit: line clocks */
45 int acb; /* ac-bias pin frequency */
47 enum omap_panel_config config;
53 * Used to match device to panel configuration
54 * when use generic panel driver
59 /* Panel configurations */
60 static struct panel_config generic_dpi_panels[] = {
61 /* Sharp LQ043T1DG01 */
79 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
80 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
82 .power_off_delay = 100,
86 /* Sharp LS037V7DW01 */
104 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
106 .power_on_delay = 50,
107 .power_off_delay = 100,
117 .pixel_clock = 26000,
129 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
130 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC |
133 .power_off_delay = 0,
134 .name = "toppoly_tdo35s",
137 /* Samsung LTE430WQ-F0C */
155 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
158 .power_off_delay = 0,
159 .name = "samsung_lte430wq_f0c",
162 /* Seiko 70WVW1TZ3Z3 */
168 .pixel_clock = 33000,
180 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
183 .power_off_delay = 0,
184 .name = "seiko_70wvw1tz3",
187 /* Powertip PH480272T */
205 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
206 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
208 .power_off_delay = 0,
209 .name = "powertip_ph480272t",
212 /* Innolux AT070TN83 */
218 .pixel_clock = 40000,
230 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
233 .power_off_delay = 0,
234 .name = "innolux_at070tn83",
237 /* NEC NL2432DR22-11B */
253 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
255 .name = "nec_nl2432dr22-11b",
258 /* Unknown panel used in OMAP H4 */
274 .config = OMAP_DSS_LCD_TFT,
279 /* Unknown panel used in Samsung OMAP2 Apollon */
295 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
300 /* FocalTech ETM070003DH6 */
306 .pixel_clock = 28000,
316 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
318 .name = "focaltech_etm070003dh6",
321 /* Microtips Technologies - UMSH-8173MD */
327 .pixel_clock = 34560,
339 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
340 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IPC,
342 .power_off_delay = 0,
343 .name = "microtips_umsh_8173md",
346 /* OrtusTech COM43H4M10XTC */
362 .config = OMAP_DSS_LCD_TFT,
364 .name = "ortustech_com43h4m10xtc",
367 /* Innolux AT080TN52 */
373 .pixel_clock = 41142,
384 .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
385 OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IEO,
387 .name = "innolux_at080tn52",
391 struct panel_drv_data {
393 struct omap_dss_device *dssdev;
395 struct panel_config *panel_config;
398 static inline struct panel_generic_dpi_data
399 *get_panel_data(const struct omap_dss_device *dssdev)
401 return (struct panel_generic_dpi_data *) dssdev->data;
404 static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev)
407 struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
408 struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
409 struct panel_config *panel_config = drv_data->panel_config;
411 if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
414 r = omapdss_dpi_display_enable(dssdev);
418 /* wait couple of vsyncs until enabling the LCD */
419 if (panel_config->power_on_delay)
420 msleep(panel_config->power_on_delay);
422 if (panel_data->platform_enable) {
423 r = panel_data->platform_enable(dssdev);
430 omapdss_dpi_display_disable(dssdev);
435 static void generic_dpi_panel_power_off(struct omap_dss_device *dssdev)
437 struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
438 struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
439 struct panel_config *panel_config = drv_data->panel_config;
441 if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
444 if (panel_data->platform_disable)
445 panel_data->platform_disable(dssdev);
447 /* wait couple of vsyncs after disabling the LCD */
448 if (panel_config->power_off_delay)
449 msleep(panel_config->power_off_delay);
451 omapdss_dpi_display_disable(dssdev);
454 static int generic_dpi_panel_probe(struct omap_dss_device *dssdev)
456 struct panel_generic_dpi_data *panel_data = get_panel_data(dssdev);
457 struct panel_config *panel_config = NULL;
458 struct panel_drv_data *drv_data = NULL;
461 dev_dbg(&dssdev->dev, "probe\n");
463 if (!panel_data || !panel_data->name)
466 for (i = 0; i < ARRAY_SIZE(generic_dpi_panels); i++) {
467 if (strcmp(panel_data->name, generic_dpi_panels[i].name) == 0) {
468 panel_config = &generic_dpi_panels[i];
476 dssdev->panel.config = panel_config->config;
477 dssdev->panel.timings = panel_config->timings;
478 dssdev->panel.acb = panel_config->acb;
479 dssdev->panel.acbi = panel_config->acbi;
481 drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL);
485 drv_data->dssdev = dssdev;
486 drv_data->panel_config = panel_config;
488 dev_set_drvdata(&dssdev->dev, drv_data);
493 static void __exit generic_dpi_panel_remove(struct omap_dss_device *dssdev)
495 struct panel_drv_data *drv_data = dev_get_drvdata(&dssdev->dev);
497 dev_dbg(&dssdev->dev, "remove\n");
501 dev_set_drvdata(&dssdev->dev, NULL);
504 static int generic_dpi_panel_enable(struct omap_dss_device *dssdev)
508 r = generic_dpi_panel_power_on(dssdev);
512 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
517 static void generic_dpi_panel_disable(struct omap_dss_device *dssdev)
519 generic_dpi_panel_power_off(dssdev);
521 dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
524 static int generic_dpi_panel_suspend(struct omap_dss_device *dssdev)
526 generic_dpi_panel_power_off(dssdev);
528 dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
533 static int generic_dpi_panel_resume(struct omap_dss_device *dssdev)
537 r = generic_dpi_panel_power_on(dssdev);
541 dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
546 static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev,
547 struct omap_video_timings *timings)
549 dpi_set_timings(dssdev, timings);
552 static void generic_dpi_panel_get_timings(struct omap_dss_device *dssdev,
553 struct omap_video_timings *timings)
555 *timings = dssdev->panel.timings;
558 static int generic_dpi_panel_check_timings(struct omap_dss_device *dssdev,
559 struct omap_video_timings *timings)
561 return dpi_check_timings(dssdev, timings);
564 static struct omap_dss_driver dpi_driver = {
565 .probe = generic_dpi_panel_probe,
566 .remove = __exit_p(generic_dpi_panel_remove),
568 .enable = generic_dpi_panel_enable,
569 .disable = generic_dpi_panel_disable,
570 .suspend = generic_dpi_panel_suspend,
571 .resume = generic_dpi_panel_resume,
573 .set_timings = generic_dpi_panel_set_timings,
574 .get_timings = generic_dpi_panel_get_timings,
575 .check_timings = generic_dpi_panel_check_timings,
578 .name = "generic_dpi_panel",
579 .owner = THIS_MODULE,
583 static int __init generic_dpi_panel_drv_init(void)
585 return omap_dss_register_driver(&dpi_driver);
588 static void __exit generic_dpi_panel_drv_exit(void)
590 omap_dss_unregister_driver(&dpi_driver);
593 module_init(generic_dpi_panel_drv_init);
594 module_exit(generic_dpi_panel_drv_exit);
595 MODULE_LICENSE("GPL");