drivers/video/omap/lcd_omap3beagle.c

   1 /*
   2  * LCD panel support for the TI OMAP3 Beagle board
   3  *
   4  * Author: Koen Kooi <koen@openembedded.org>
   5  *
   6  * Derived from drivers/video/omap/lcd-omap3evm.c
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2 of the License, or (at your
  11  * option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; if not, write to the Free Software Foundation, Inc.,
  20  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21  */
  22
  23 #include <linux/module.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/gpio.h>
  26 #include <linux/i2c/twl4030.h>
  27
  28 #include <mach/mux.h>
  29 #include <mach/omapfb.h>
  30 #include <asm/mach-types.h>
  31
  32 #define LCD_PANEL_ENABLE_GPIO       170
  33
  34 static int omap3beagle_panel_init(struct lcd_panel *panel,
  35                                 struct omapfb_device *fbdev)
  36 {
  37         gpio_request(LCD_PANEL_ENABLE_GPIO, "LCD enable");
  38         return 0;
  39 }
  40
  41 static void omap3beagle_panel_cleanup(struct lcd_panel *panel)
  42 {
  43         gpio_free(LCD_PANEL_ENABLE_GPIO);
  44 }
  45
  46 static int omap3beagle_panel_enable(struct lcd_panel *panel)
  47 {
  48         gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1);
  49         return 0;
  50 }
  51
  52 static void omap3beagle_panel_disable(struct lcd_panel *panel)
  53 {
  54         gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0);
  55 }
  56
  57 static unsigned long omap3beagle_panel_get_caps(struct lcd_panel *panel)
  58 {
  59         return 0;
  60 }
  61
  62 struct lcd_panel omap3beagle_panel = {
  63         .name           = "omap3beagle",
  64         .config         = OMAP_LCDC_PANEL_TFT,
  65
  66         .bpp            = 16,
  67         .data_lines     = 24,
  68         .x_res          = 1024,
  69         .y_res          = 768,
  70         .hsw            = 3,            /* hsync_len (4) - 1 */
  71         .hfp            = 3,            /* right_margin (4) - 1 */
  72         .hbp            = 39,           /* left_margin (40) - 1 */
  73         .vsw            = 1,            /* vsync_len (2) - 1 */
  74         .vfp            = 2,            /* lower_margin */
  75         .vbp            = 7,            /* upper_margin (8) - 1 */
  76
  77         .pixel_clock    = 64000,
  78
  79         .init           = omap3beagle_panel_init,
  80         .cleanup        = omap3beagle_panel_cleanup,
  81         .enable         = omap3beagle_panel_enable,
  82         .disable        = omap3beagle_panel_disable,
  83         .get_caps       = omap3beagle_panel_get_caps,
  84 };
  85
  86 static int omap3beagle_panel_probe(struct platform_device *pdev)
  87 {
  88         omapfb_register_panel(&omap3beagle_panel);
  89         return 0;
  90 }
  91
  92 static int omap3beagle_panel_remove(struct platform_device *pdev)
  93 {
  94         return 0;
  95 }
  96
  97 static int omap3beagle_panel_suspend(struct platform_device *pdev,
  98                                    pm_message_t mesg)
  99 {
 100         return 0;
 101 }
 102
 103 static int omap3beagle_panel_resume(struct platform_device *pdev)
 104 {
 105         return 0;
 106 }
 107
 108 struct platform_driver omap3beagle_panel_driver = {
 109         .probe          = omap3beagle_panel_probe,
 110         .remove         = omap3beagle_panel_remove,
 111         .suspend        = omap3beagle_panel_suspend,
 112         .resume         = omap3beagle_panel_resume,
 113         .driver         = {
 114                 .name   = "omap3beagle_lcd",
 115                 .owner  = THIS_MODULE,
 116         },
 117 };
 118
 119 static int __init omap3beagle_panel_drv_init(void)
 120 {
 121         return platform_driver_register(&omap3beagle_panel_driver);
 122 }
 123
 124 static void __exit omap3beagle_panel_drv_exit(void)
 125 {
 126         platform_driver_unregister(&omap3beagle_panel_driver);
 127 }
 128
 129 module_init(omap3beagle_panel_drv_init);
 130 module_exit(omap3beagle_panel_drv_exit);