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omapfb: add support for the Gumstix Overo LCD

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Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Imre Deak <imre.deak@nokia.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Steve Sakoman 2009-09-22 16:46:51 -07:00 committed by Linus Torvalds
parent 27969ccc28
commit be481941c6
3 changed files with 201 additions and 0 deletions
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21
drivers/video/omap/Kconfig
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@ -7,6 +7,27 @@ config FB_OMAP
help
Frame buffer driver for OMAP based boards.
choice
depends on FB_OMAP && MACH_OVERO
prompt "Screen resolution"
default FB_OMAP_079M3R
help
Selected desired screen resolution
config FB_OMAP_031M3R
boolean "640 x 480 @ 60 Hz Reduced blanking"
config FB_OMAP_048M3R
boolean "800 x 600 @ 60 Hz Reduced blanking"
config FB_OMAP_079M3R
boolean "1024 x 768 @ 60 Hz Reduced blanking"
config FB_OMAP_092M9R
boolean "1280 x 720 @ 60 Hz Reduced blanking"
endchoice
config FB_OMAP_LCD_MIPID
bool "MIPI DBI-C/DCS compatible LCD support"
depends on FB_OMAP && SPI_MASTER

1
drivers/video/omap/Makefile
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@ -33,6 +33,7 @@ objs-y$(CONFIG_MACH_OMAP2EVM) += lcd_omap2evm.o
objs-y$(CONFIG_MACH_OMAP3EVM) += lcd_omap3evm.o
objs-y$(CONFIG_MACH_OMAP3_BEAGLE) += lcd_omap3beagle.o
objs-y$(CONFIG_FB_OMAP_LCD_MIPID) += lcd_mipid.o
objs-y$(CONFIG_MACH_OVERO) += lcd_overo.o
omapfb-objs := $(objs-yy)

179
drivers/video/omap/lcd_overo.c Normal file
View File

@ -0,0 +1,179 @@
/*
* 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);