2 * LCD panel support for the TI OMAP3 Beagle board
4 * Author: Koen Kooi <koen@openembedded.org>
6 * Derived from drivers/video/omap/lcd-omap3evm.c
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.
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.
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.
23 #include <linux/module.h>
24 #include <linux/platform_device.h>
25 #include <linux/gpio.h>
26 #include <linux/i2c/twl4030.h>
29 #include <mach/omapfb.h>
30 #include <asm/mach-types.h>
32 #define LCD_PANEL_ENABLE_GPIO 170
36 #define LCD_PIXCLOCK 64000 /* in kHz */
38 static int omap3beagle_panel_init(struct lcd_panel *panel,
39 struct omapfb_device *fbdev)
41 gpio_request(LCD_PANEL_ENABLE_GPIO, "LCD enable");
45 static void omap3beagle_panel_cleanup(struct lcd_panel *panel)
49 static int omap3beagle_panel_enable(struct lcd_panel *panel)
51 gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1);
55 static void omap3beagle_panel_disable(struct lcd_panel *panel)
57 gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0);
60 static unsigned long omap3beagle_panel_get_caps(struct lcd_panel *panel)
65 struct lcd_panel omap3beagle_panel = {
66 .name = "omap3beagle",
67 .config = OMAP_LCDC_PANEL_TFT,
73 .hsw = 3, /* hsync_len (4) - 1 */
74 .hfp = 3, /* right_margin (4) - 1 */
75 .hbp = 39, /* left_margin (40) - 1 */
76 .vsw = 1, /* vsync_len (2) - 1 */
77 .vfp = 2, /* lower_margin */
78 .vbp = 7, /* upper_margin (8) - 1 */
80 .pixel_clock = LCD_PIXCLOCK,
82 .init = omap3beagle_panel_init,
83 .cleanup = omap3beagle_panel_cleanup,
84 .enable = omap3beagle_panel_enable,
85 .disable = omap3beagle_panel_disable,
86 .get_caps = omap3beagle_panel_get_caps,
89 static int omap3beagle_panel_probe(struct platform_device *pdev)
91 omapfb_register_panel(&omap3beagle_panel);
95 static int omap3beagle_panel_remove(struct platform_device *pdev)
100 static int omap3beagle_panel_suspend(struct platform_device *pdev,
106 static int omap3beagle_panel_resume(struct platform_device *pdev)
111 struct platform_driver omap3beagle_panel_driver = {
112 .probe = omap3beagle_panel_probe,
113 .remove = omap3beagle_panel_remove,
114 .suspend = omap3beagle_panel_suspend,
115 .resume = omap3beagle_panel_resume,
117 .name = "omap3beagle_lcd",
118 .owner = THIS_MODULE,
122 static int __init omap3beagle_panel_drv_init(void)
124 return platform_driver_register(&omap3beagle_panel_driver);
127 static void __exit omap3beagle_panel_drv_exit(void)
129 platform_driver_unregister(&omap3beagle_panel_driver);
132 module_init(omap3beagle_panel_drv_init);
133 module_exit(omap3beagle_panel_drv_exit);