drivers/video/omap2/displays/panel-toppoly-tdo35s.c

   1 /*
   2  * LCD panel driver for Toppoly TDO35S
   3  *
   4  * Copyright (C) 2009 CompuLab, Ltd.
   5  * Author: Mike Rapoport <mike@compulab.co.il>
   6  *
   7  * Based on generic panel support
   8  * Copyright (C) 2008 Nokia Corporation
   9  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU General Public License version 2 as published by
  13  * the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but WITHOUT
  16  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18  * more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along with
  21  * this program.  If not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/delay.h>
  26
  27 #include <plat/display.h>
  28
  29 static struct omap_video_timings toppoly_tdo_panel_timings = {
  30         /* 640 x 480 @ 60 Hz  Reduced blanking VESA CVT 0.31M3-R */
  31         .x_res          = 480,
  32         .y_res          = 640,
  33
  34         .pixel_clock    = 26000,
  35
  36         .hfp            = 104,
  37         .hsw            = 8,
  38         .hbp            = 8,
  39
  40         .vfp            = 4,
  41         .vsw            = 2,
  42         .vbp            = 2,
  43 };
  44
  45 static int toppoly_tdo_panel_power_on(struct omap_dss_device *dssdev)
  46 {
  47         int r;
  48
  49         r = omapdss_dpi_display_enable(dssdev);
  50         if (r)
  51                 goto err0;
  52
  53         if (dssdev->platform_enable) {
  54                 r = dssdev->platform_enable(dssdev);
  55                 if (r)
  56                         goto err1;
  57         }
  58
  59         return 0;
  60 err1:
  61         omapdss_dpi_display_disable(dssdev);
  62 err0:
  63         return r;
  64 }
  65
  66 static void toppoly_tdo_panel_power_off(struct omap_dss_device *dssdev)
  67 {
  68         if (dssdev->platform_disable)
  69                 dssdev->platform_disable(dssdev);
  70
  71         omapdss_dpi_display_disable(dssdev);
  72 }
  73
  74 static int toppoly_tdo_panel_probe(struct omap_dss_device *dssdev)
  75 {
  76         dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
  77                 OMAP_DSS_LCD_IHS;
  78         dssdev->panel.timings = toppoly_tdo_panel_timings;
  79
  80         return 0;
  81 }
  82
  83 static void toppoly_tdo_panel_remove(struct omap_dss_device *dssdev)
  84 {
  85 }
  86
  87 static int toppoly_tdo_panel_enable(struct omap_dss_device *dssdev)
  88 {
  89         int r = 0;
  90
  91         r = toppoly_tdo_panel_power_on(dssdev);
  92         if (r)
  93                 return r;
  94
  95         dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
  96
  97         return 0;
  98 }
  99
 100 static void toppoly_tdo_panel_disable(struct omap_dss_device *dssdev)
 101 {
 102         toppoly_tdo_panel_power_off(dssdev);
 103
 104         dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 105 }
 106
 107 static int toppoly_tdo_panel_suspend(struct omap_dss_device *dssdev)
 108 {
 109         toppoly_tdo_panel_power_off(dssdev);
 110         dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
 111         return 0;
 112 }
 113
 114 static int toppoly_tdo_panel_resume(struct omap_dss_device *dssdev)
 115 {
 116         int r = 0;
 117
 118         r = toppoly_tdo_panel_power_on(dssdev);
 119         if (r)
 120                 return r;
 121
 122         dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 123
 124         return 0;
 125 }
 126
 127 static struct omap_dss_driver generic_driver = {
 128         .probe          = toppoly_tdo_panel_probe,
 129         .remove         = toppoly_tdo_panel_remove,
 130
 131         .enable         = toppoly_tdo_panel_enable,
 132         .disable        = toppoly_tdo_panel_disable,
 133         .suspend        = toppoly_tdo_panel_suspend,
 134         .resume         = toppoly_tdo_panel_resume,
 135
 136         .driver         = {
 137                 .name   = "toppoly_tdo35s_panel",
 138                 .owner  = THIS_MODULE,
 139         },
 140 };
 141
 142 static int __init toppoly_tdo_panel_drv_init(void)
 143 {
 144         return omap_dss_register_driver(&generic_driver);
 145 }
 146
 147 static void __exit toppoly_tdo_panel_drv_exit(void)
 148 {
 149         omap_dss_unregister_driver(&generic_driver);
 150 }
 151
 152 module_init(toppoly_tdo_panel_drv_init);
 153 module_exit(toppoly_tdo_panel_drv_exit);
 154 MODULE_LICENSE("GPL");