/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/twl.h>
 27
 28#include <asm/mach-types.h>
 29
 30#include "omapfb.h"
 31
 32#define LCD_PANEL_ENABLE_GPIO       170
 33
 34static 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
 41static void omap3beagle_panel_cleanup(struct lcd_panel *panel)
 42{
 43	gpio_free(LCD_PANEL_ENABLE_GPIO);
 44}
 45
 46static int omap3beagle_panel_enable(struct lcd_panel *panel)
 47{
 48	gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1);
 49	return 0;
 50}
 51
 52static void omap3beagle_panel_disable(struct lcd_panel *panel)
 53{
 54	gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0);
 55}
 56
 57static unsigned long omap3beagle_panel_get_caps(struct lcd_panel *panel)
 58{
 59	return 0;
 60}
 61
 62struct 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
 86static int omap3beagle_panel_probe(struct platform_device *pdev)
 87{
 88	omapfb_register_panel(&omap3beagle_panel);
 89	return 0;
 90}
 91
 92static int omap3beagle_panel_remove(struct platform_device *pdev)
 93{
 94	return 0;
 95}
 96
 97static int omap3beagle_panel_suspend(struct platform_device *pdev,
 98				   pm_message_t mesg)
 99{
100	return 0;
101}
102
103static int omap3beagle_panel_resume(struct platform_device *pdev)
104{
105	return 0;
106}
107
108struct 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
119static int __init omap3beagle_panel_drv_init(void)
120{
121	return platform_driver_register(&omap3beagle_panel_driver);
122}
123
124static void __exit omap3beagle_panel_drv_exit(void)
125{
126	platform_driver_unregister(&omap3beagle_panel_driver);
127}
128
129module_init(omap3beagle_panel_drv_init);
130module_exit(omap3beagle_panel_drv_exit);