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/*
* LCD panel support for the Gumstix Overo
*
* Author: Steve Sakoman <steve@sakoman.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/i2c/twl4030.h>
#include <mach/gpio.h>
#include <plat/mux.h>
#include <plat/omapfb.h>
#include <asm/mach-types.h>
#define LCD_ENABLE 144
static int overo_panel_init(struct lcd_panel *panel,
struct omapfb_device *fbdev)
{
if ((gpio_request(LCD_ENABLE, "LCD_ENABLE") == 0) &&
(gpio_direction_output(LCD_ENABLE, 1) == 0))
gpio_export(LCD_ENABLE, 0);
else
printk(KERN_ERR "could not obtain gpio for LCD_ENABLE\n");
return 0;
}
static void overo_panel_cleanup(struct lcd_panel *panel)
{
gpio_free(LCD_ENABLE);
}
static int overo_panel_enable(struct lcd_panel *panel)
{
gpio_set_value(LCD_ENABLE, 1);
return 0;
}
static void overo_panel_disable(struct lcd_panel *panel)
{
gpio_set_value(LCD_ENABLE, 0);
}
static unsigned long overo_panel_get_caps(struct lcd_panel *panel)
{
return 0;
}
struct lcd_panel overo_panel = {
.name = "overo",
.config = OMAP_LCDC_PANEL_TFT,
.bpp = 16,
.data_lines = 24,
#if defined CONFIG_FB_OMAP_031M3R
/* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
.x_res = 640,
.y_res = 480,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 4,
.vbp = 7,
.pixel_clock = 23500,
#elif defined CONFIG_FB_OMAP_048M3R
/* 800 x 600 @ 60 Hz Reduced blanking VESA CVT 0.48M3-R */
.x_res = 800,
.y_res = 600,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 4,
.vbp = 11,
.pixel_clock = 35500,
#elif defined CONFIG_FB_OMAP_079M3R
/* 1024 x 768 @ 60 Hz Reduced blanking VESA CVT 0.79M3-R */
.x_res = 1024,
.y_res = 768,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 4,
.vbp = 15,
.pixel_clock = 56000,
#elif defined CONFIG_FB_OMAP_092M9R
/* 1280 x 720 @ 60 Hz Reduced blanking VESA CVT 0.92M9-R */
.x_res = 1280,
.y_res = 720,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 5,
.vbp = 13,
.pixel_clock = 64000,
#else
/* use 640 x 480 if no config option */
/* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
.x_res = 640,
.y_res = 480,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 4,
.vbp = 7,
.pixel_clock = 23500,
#endif
.init = overo_panel_init,
.cleanup = overo_panel_cleanup,
.enable = overo_panel_enable,
.disable = overo_panel_disable,
.get_caps = overo_panel_get_caps,
};
static int overo_panel_probe(struct platform_device *pdev)
{
omapfb_register_panel(&overo_panel);
return 0;
}
static int overo_panel_remove(struct platform_device *pdev)
{
/* omapfb does not have unregister_panel */
return 0;
}
static struct platform_driver overo_panel_driver = {
.probe = overo_panel_probe,
.remove = overo_panel_remove,
.driver = {
.name = "overo_lcd",
.owner = THIS_MODULE,
},
};
static int __init overo_panel_drv_init(void)
{
return platform_driver_register(&overo_panel_driver);
}
static void __exit overo_panel_drv_exit(void)
{
platform_driver_unregister(&overo_panel_driver);
}
module_init(overo_panel_drv_init);
module_exit(overo_panel_drv_exit);
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