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/*
* Generic panel support
*
* Copyright (C) 2008 Nokia Corporation
* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <plat/display.h>
static struct omap_video_timings generic_panel_timings = {
/* 640 x 480 @ 60 Hz Reduced blanking VESA CVT 0.31M3-R */
.x_res = 640,
.y_res = 480,
.pixel_clock = 23500,
.hfp = 48,
.hsw = 32,
.hbp = 80,
.vfp = 3,
.vsw = 4,
.vbp = 7,
};
static int generic_panel_power_on(struct omap_dss_device *dssdev)
{
int r;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE)
return 0;
r = omapdss_dpi_display_enable(dssdev);
if (r)
goto err0;
if (dssdev->platform_enable) {
r = dssdev->platform_enable(dssdev);
if (r)
goto err1;
}
return 0;
err1:
omapdss_dpi_display_disable(dssdev);
err0:
return r;
}
static void generic_panel_power_off(struct omap_dss_device *dssdev)
{
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
return;
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
omapdss_dpi_display_disable(dssdev);
}
static int generic_panel_probe(struct omap_dss_device *dssdev)
{
dssdev->panel.config = OMAP_DSS_LCD_TFT;
dssdev->panel.timings = generic_panel_timings;
return 0;
}
static void generic_panel_remove(struct omap_dss_device *dssdev)
{
}
static int generic_panel_enable(struct omap_dss_device *dssdev)
{
int r = 0;
r = generic_panel_power_on(dssdev);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static void generic_panel_disable(struct omap_dss_device *dssdev)
{
generic_panel_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
}
static int generic_panel_suspend(struct omap_dss_device *dssdev)
{
generic_panel_power_off(dssdev);
dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
return 0;
}
static int generic_panel_resume(struct omap_dss_device *dssdev)
{
int r = 0;
r = generic_panel_power_on(dssdev);
if (r)
return r;
dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
return 0;
}
static void generic_panel_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
dpi_set_timings(dssdev, timings);
}
static void generic_panel_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
*timings = dssdev->panel.timings;
}
static int generic_panel_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
return dpi_check_timings(dssdev, timings);
}
static struct omap_dss_driver generic_driver = {
.probe = generic_panel_probe,
.remove = generic_panel_remove,
.enable = generic_panel_enable,
.disable = generic_panel_disable,
.suspend = generic_panel_suspend,
.resume = generic_panel_resume,
.set_timings = generic_panel_set_timings,
.get_timings = generic_panel_get_timings,
.check_timings = generic_panel_check_timings,
.driver = {
.name = "generic_panel",
.owner = THIS_MODULE,
},
};
static int __init generic_panel_drv_init(void)
{
return omap_dss_register_driver(&generic_driver);
}
static void __exit generic_panel_drv_exit(void)
{
omap_dss_unregister_driver(&generic_driver);
}
module_init(generic_panel_drv_init);
module_exit(generic_panel_drv_exit);
MODULE_LICENSE("GPL");
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