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

   1 /*
   2  * Generic panel support
   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 <plat/display.h>
  24
  25 static struct omap_video_timings generic_panel_timings = {
  26         /* 640 x 480 @ 60 Hz  Reduced blanking VESA CVT 0.31M3-R */
  27         .x_res          = 640,
  28         .y_res          = 480,
  29         .pixel_clock    = 23500,
  30         .hfp            = 48,
  31         .hsw            = 32,
  32         .hbp            = 80,
  33         .vfp            = 3,
  34         .vsw            = 4,
  35         .vbp            = 7,
  36 };
  37
  38 static int generic_panel_probe(struct omap_dss_device *dssdev)
  39 {
  40         dssdev->panel.config = OMAP_DSS_LCD_TFT;
  41         dssdev->panel.timings = generic_panel_timings;
  42
  43         return 0;
  44 }
  45
  46 static void generic_panel_remove(struct omap_dss_device *dssdev)
  47 {
  48 }
  49
  50 static int generic_panel_enable(struct omap_dss_device *dssdev)
  51 {
  52         int r = 0;
  53
  54         if (dssdev->platform_enable)
  55                 r = dssdev->platform_enable(dssdev);
  56
  57         return r;
  58 }
  59
  60 static void generic_panel_disable(struct omap_dss_device *dssdev)
  61 {
  62         if (dssdev->platform_disable)
  63                 dssdev->platform_disable(dssdev);
  64 }
  65
  66 static int generic_panel_suspend(struct omap_dss_device *dssdev)
  67 {
  68         generic_panel_disable(dssdev);
  69         return 0;
  70 }
  71
  72 static int generic_panel_resume(struct omap_dss_device *dssdev)
  73 {
  74         return generic_panel_enable(dssdev);
  75 }
  76
  77 static struct omap_dss_driver generic_driver = {
  78         .probe          = generic_panel_probe,
  79         .remove         = generic_panel_remove,
  80
  81         .enable         = generic_panel_enable,
  82         .disable        = generic_panel_disable,
  83         .suspend        = generic_panel_suspend,
  84         .resume         = generic_panel_resume,
  85
  86         .driver         = {
  87                 .name   = "generic_panel",
  88                 .owner  = THIS_MODULE,
  89         },
  90 };
  91
  92 static int __init generic_panel_drv_init(void)
  93 {
  94         return omap_dss_register_driver(&generic_driver);
  95 }
  96
  97 static void __exit generic_panel_drv_exit(void)
  98 {
  99         omap_dss_unregister_driver(&generic_driver);
 100 }
 101
 102 module_init(generic_panel_drv_init);
 103 module_exit(generic_panel_drv_exit);
 104 MODULE_LICENSE("GPL");