drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c

   1 /*
   2  * LCD panel driver for Samsung LTE430WQ-F0C
   3  *
   4  * Author: Steve Sakoman <steve@sakoman.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published by
   8  * the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/delay.h>
  21
  22 #include <mach/display.h>
  23
  24 static int samsung_lte_panel_init(struct omap_display *display)
  25 {
  26         return 0;
  27 }
  28
  29 static void samsung_lte_panel_cleanup(struct omap_display *display)
  30 {
  31 }
  32
  33 static int samsung_lte_panel_enable(struct omap_display *display)
  34 {
  35         int r = 0;
  36
  37         /* wait couple of vsyncs until enabling the LCD */
  38         msleep(50);
  39
  40         if (display->hw_config.panel_enable)
  41                 r = display->hw_config.panel_enable(display);
  42
  43         return r;
  44 }
  45
  46 static void samsung_lte_panel_disable(struct omap_display *display)
  47 {
  48         if (display->hw_config.panel_disable)
  49                 display->hw_config.panel_disable(display);
  50
  51         /* wait at least 5 vsyncs after disabling the LCD */
  52         msleep(100);
  53 }
  54
  55 static int samsung_lte_panel_suspend(struct omap_display *display)
  56 {
  57         samsung_lte_panel_disable(display);
  58         return 0;
  59 }
  60
  61 static int samsung_lte_panel_resume(struct omap_display *display)
  62 {
  63         return samsung_lte_panel_enable(display);
  64 }
  65
  66 static struct omap_panel samsung_lte_panel = {
  67         .owner          = THIS_MODULE,
  68         .name           = "samsung-lte430wq-f0c",
  69         .init           = samsung_lte_panel_init,
  70         .cleanup        = samsung_lte_panel_cleanup,
  71         .enable         = samsung_lte_panel_enable,
  72         .disable        = samsung_lte_panel_disable,
  73         .suspend        = samsung_lte_panel_suspend,
  74         .resume         = samsung_lte_panel_resume,
  75
  76         .timings = {
  77                 .x_res = 480,
  78                 .y_res = 272,
  79
  80                 .pixel_clock    = 9200,
  81
  82                 .hsw            = 41,
  83                 .hfp            = 8,
  84                 .hbp            = 45-41,
  85
  86                 .vsw            = 10,
  87                 .vfp            = 4,
  88                 .vbp            = 12-10,
  89         },
  90
  91         .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IHS | OMAP_DSS_LCD_IVS,
  92 };
  93
  94
  95 static int __init samsung_lte_panel_drv_init(void)
  96 {
  97         omap_dss_register_panel(&samsung_lte_panel);
  98         return 0;
  99 }
 100
 101 static void __exit samsung_lte_panel_drv_exit(void)
 102 {
 103         omap_dss_unregister_panel(&samsung_lte_panel);
 104 }
 105
 106 module_init(samsung_lte_panel_drv_init);
 107 module_exit(samsung_lte_panel_drv_exit);
 108 MODULE_LICENSE("GPL");