Pandora Sourcecodes - openembedded.git/blob

   1 From a23b9064217c6ea6f04e71063c2dc90d121269b8 Mon Sep 17 00:00:00 2001
   2 From: Steve Sakoman <steve@sakoman.com>
   3 Date: Tue, 23 Feb 2010 14:40:27 -0800
   4 Subject: [PATCH 19/48] OMAP: DSS2: Add support for Samsung LTE430WQ-F0C panel
   5
   6 ---
   7  .../omap2/displays/panel-samsung-lte430wq-f0c.c    |  154 ++++++++++++++++++++
   8  1 files changed, 154 insertions(+), 0 deletions(-)
   9  create mode 100644 drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
  10
  11 diff --git a/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
  12 new file mode 100644
  13 index 0000000..6a29f9c
  14 --- /dev/null
  15 +++ b/drivers/video/omap2/displays/panel-samsung-lte430wq-f0c.c
  16 @@ -0,0 +1,154 @@
  17 +/*
  18 + * LCD panel driver for Samsung LTE430WQ-F0C
  19 + *
  20 + * Author: Steve Sakoman <steve@sakoman.com>
  21 + *
  22 + * This program is free software; you can redistribute it and/or modify it
  23 + * under the terms of the GNU General Public License version 2 as published by
  24 + * the Free Software Foundation.
  25 + *
  26 + * This program is distributed in the hope that it will be useful, but WITHOUT
  27 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  28 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  29 + * more details.
  30 + *
  31 + * You should have received a copy of the GNU General Public License along with
  32 + * this program.  If not, see <http://www.gnu.org/licenses/>.
  33 + */
  34 +
  35 +#include <linux/module.h>
  36 +#include <linux/delay.h>
  37 +
  38 +#include <plat/display.h>
  39 +
  40 +static struct omap_video_timings samsung_lte_timings = {
  41 +       .x_res = 480,
  42 +       .y_res = 272,
  43 +
  44 +       .pixel_clock    = 9200,
  45 +
  46 +       .hsw            = 41,
  47 +       .hfp            = 8,
  48 +       .hbp            = 45-41,
  49 +
  50 +       .vsw            = 10,
  51 +       .vfp            = 4,
  52 +       .vbp            = 12-10,
  53 +};
  54 +
  55 +static int samsung_lte_panel_power_on(struct omap_dss_device *dssdev)
  56 +{
  57 +       int r;
  58 +
  59 +       if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
  60 +               return 0;
  61 +
  62 +       r = omapdss_dpi_display_enable(dssdev);
  63 +       if (r)
  64 +               goto err0;
  65 +
  66 +       if (dssdev->platform_enable) {
  67 +               r = dssdev->platform_enable(dssdev);
  68 +               if (r)
  69 +                       goto err1;
  70 +       }
  71 +
  72 +       return 0;
  73 +err1:
  74 +       omapdss_dpi_display_disable(dssdev);
  75 +err0:
  76 +       return r;
  77 +}
  78 +
  79 +static void samsung_lte_panel_power_off(struct omap_dss_device *dssdev)
  80 +{
  81 +       if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
  82 +               return;
  83 +
  84 +       if (dssdev->platform_disable)
  85 +               dssdev->platform_disable(dssdev);
  86 +
  87 +       omapdss_dpi_display_disable(dssdev);
  88 +}
  89 +
  90 +static int samsung_lte_panel_probe(struct omap_dss_device *dssdev)
  91 +{
  92 +       dssdev->panel.config = OMAP_DSS_LCD_TFT | OMAP_DSS_LCD_IVS |
  93 +               OMAP_DSS_LCD_IHS;
  94 +       dssdev->panel.timings = samsung_lte_timings;
  95 +
  96 +       return 0;
  97 +}
  98 +
  99 +static void samsung_lte_panel_remove(struct omap_dss_device *dssdev)
 100 +{
 101 +}
 102 +
 103 +static int samsung_lte_panel_enable(struct omap_dss_device *dssdev)
 104 +{
 105 +       int r = 0;
 106 +
 107 +       r = samsung_lte_panel_power_on(dssdev);
 108 +       if (r)
 109 +               return r;
 110 +
 111 +       dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 112 +
 113 +       return 0;
 114 +}
 115 +
 116 +static void samsung_lte_panel_disable(struct omap_dss_device *dssdev)
 117 +{
 118 +       samsung_lte_panel_power_off(dssdev);
 119 +
 120 +       dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
 121 +}
 122 +
 123 +static int samsung_lte_panel_suspend(struct omap_dss_device *dssdev)
 124 +{
 125 +       samsung_lte_panel_disable(dssdev);
 126 +       dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
 127 +       return 0;
 128 +}
 129 +
 130 +static int samsung_lte_panel_resume(struct omap_dss_device *dssdev)
 131 +{
 132 +       int r;
 133 +
 134 +       r = samsung_lte_panel_enable(dssdev);
 135 +       if (r)
 136 +               return r;
 137 +
 138 +       dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
 139 +
 140 +       return 0;
 141 +}
 142 +
 143 +static struct omap_dss_driver samsung_lte_driver = {
 144 +       .probe          = samsung_lte_panel_probe,
 145 +       .remove         = samsung_lte_panel_remove,
 146 +
 147 +       .enable         = samsung_lte_panel_enable,
 148 +       .disable        = samsung_lte_panel_disable,
 149 +       .suspend        = samsung_lte_panel_suspend,
 150 +       .resume         = samsung_lte_panel_resume,
 151 +
 152 +       .driver         = {
 153 +               .name   = "samsung_lte_panel",
 154 +               .owner  = THIS_MODULE,
 155 +       },
 156 +};
 157 +
 158 +static int __init samsung_lte_panel_drv_init(void)
 159 +{
 160 +       return omap_dss_register_driver(&samsung_lte_driver);
 161 +}
 162 +
 163 +static void __exit samsung_lte_panel_drv_exit(void)
 164 +{
 165 +       omap_dss_unregister_driver(&samsung_lte_driver);
 166 +}
 167 +
 168 +module_init(samsung_lte_panel_drv_init);
 169 +module_exit(samsung_lte_panel_drv_exit);
 170 +MODULE_LICENSE("GPL");
 171 --
 172 1.6.6.1
 173