git.maemo.org Git - h-e-n/blob - drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c

   1 /*
   2  * LCD panel driver for Sharp LS037V7DW01
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <linux/module.h>
  21 #include <linux/delay.h>
  22
  23 #include <mach/display.h>
  24
  25 static int sharp_ls_panel_init(struct omap_display *display)
  26 {
  27         return 0;
  28 }
  29
  30 static void sharp_ls_panel_cleanup(struct omap_display *display)
  31 {
  32 }
  33
  34 static int sharp_ls_panel_enable(struct omap_display *display)
  35 {
  36         int r = 0;
  37
  38         /* wait couple of vsyncs until enabling the LCD */
  39         msleep(50);
  40
  41         if (display->hw_config.panel_enable)
  42                 r = display->hw_config.panel_enable(display);
  43
  44         return r;
  45 }
  46
  47 static void sharp_ls_panel_disable(struct omap_display *display)
  48 {
  49         if (display->hw_config.panel_disable)
  50                 display->hw_config.panel_disable(display);
  51
  52         /* wait at least 5 vsyncs after disabling the LCD */
  53
  54         msleep(100);
  55 }
  56
  57 static int sharp_ls_panel_suspend(struct omap_display *display)
  58 {
  59         sharp_ls_panel_disable(display);
  60         return 0;
  61 }
  62
  63 static int sharp_ls_panel_resume(struct omap_display *display)
  64 {
  65         return sharp_ls_panel_enable(display);
  66 }
  67
  68 static struct omap_panel sharp_ls_panel = {
  69         .owner          = THIS_MODULE,
  70         .name           = "sharp-ls037v7dw01",
  71         .init           = sharp_ls_panel_init,
  72         .cleanup        = sharp_ls_panel_cleanup,
  73         .enable         = sharp_ls_panel_enable,
  74         .disable        = sharp_ls_panel_disable,
  75         .suspend        = sharp_ls_panel_suspend,
  76         .resume         = sharp_ls_panel_resume,
  77
  78         .timings = {
  79                 .x_res = 480,
  80                 .y_res = 640,
  81
  82                 .pixel_clock    = 19200,
  83
  84                 .hsw            = 2,
  85                 .hfp            = 1,
  86                 .hbp            = 28,
  87
  88                 .vsw            = 1,
  89                 .vfp            = 1,
  90                 .vbp            = 1,
  91         },
  92
  93         .acb            = 0x28,
  94
  95         .config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS | OMAP_DSS_LCD_IHS,
  96 };
  97
  98
  99 static int __init sharp_ls_panel_drv_init(void)
 100 {
 101         omap_dss_register_panel(&sharp_ls_panel);
 102         return 0;
 103 }
 104
 105 static void __exit sharp_ls_panel_drv_exit(void)
 106 {
 107         omap_dss_unregister_panel(&sharp_ls_panel);
 108 }
 109
 110 module_init(sharp_ls_panel_drv_init);
 111 module_exit(sharp_ls_panel_drv_exit);
 112 MODULE_LICENSE("GPL");