180 lines
3.8 KiB
C
180 lines
3.8 KiB
C
/*
|
|
* 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 <mach/mux.h>
|
|
#include <mach/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);
|