-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
yaml --- r: 164826 b: refs/heads/master c: 42acff3 h: refs/heads/master v: v3
- Loading branch information
arun c
authored and
Linus Torvalds
committed
Sep 23, 2009
1 parent
6fc9d96
commit ff048d9
Showing
3 changed files
with
193 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,2 +1,2 @@ | ||
--- | ||
refs/heads/master: 3a76a819dda9a6de0ab83d04b48b3735a4d10b89 | ||
refs/heads/master: 42acff34f85c5892c8c762145441e993a5596a13 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,191 @@ | ||
/* | ||
* LCD panel support for the MISTRAL OMAP2EVM board | ||
* | ||
* Author: Arun C <arunedarath@mistralsolutions.com> | ||
* | ||
* Derived from drivers/video/omap/lcd_omap3evm.c | ||
* Derived from drivers/video/omap/lcd-apollon.c | ||
* | ||
* 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/gpio.h> | ||
#include <linux/i2c/twl4030.h> | ||
|
||
#include <mach/mux.h> | ||
#include <mach/omapfb.h> | ||
#include <asm/mach-types.h> | ||
|
||
#define LCD_PANEL_ENABLE_GPIO 154 | ||
#define LCD_PANEL_LR 128 | ||
#define LCD_PANEL_UD 129 | ||
#define LCD_PANEL_INI 152 | ||
#define LCD_PANEL_QVGA 148 | ||
#define LCD_PANEL_RESB 153 | ||
|
||
#define TWL_LED_LEDEN 0x00 | ||
#define TWL_PWMA_PWMAON 0x00 | ||
#define TWL_PWMA_PWMAOFF 0x01 | ||
|
||
static unsigned int bklight_level; | ||
|
||
static int omap2evm_panel_init(struct lcd_panel *panel, | ||
struct omapfb_device *fbdev) | ||
{ | ||
gpio_request(LCD_PANEL_ENABLE_GPIO, "LCD enable"); | ||
gpio_request(LCD_PANEL_LR, "LCD lr"); | ||
gpio_request(LCD_PANEL_UD, "LCD ud"); | ||
gpio_request(LCD_PANEL_INI, "LCD ini"); | ||
gpio_request(LCD_PANEL_QVGA, "LCD qvga"); | ||
gpio_request(LCD_PANEL_RESB, "LCD resb"); | ||
|
||
gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 1); | ||
gpio_direction_output(LCD_PANEL_RESB, 1); | ||
gpio_direction_output(LCD_PANEL_INI, 1); | ||
gpio_direction_output(LCD_PANEL_QVGA, 0); | ||
gpio_direction_output(LCD_PANEL_LR, 1); | ||
gpio_direction_output(LCD_PANEL_UD, 1); | ||
|
||
twl4030_i2c_write_u8(TWL4030_MODULE_LED, 0x11, TWL_LED_LEDEN); | ||
twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x01, TWL_PWMA_PWMAON); | ||
twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, 0x02, TWL_PWMA_PWMAOFF); | ||
bklight_level = 100; | ||
|
||
return 0; | ||
} | ||
|
||
static void omap2evm_panel_cleanup(struct lcd_panel *panel) | ||
{ | ||
gpio_free(LCD_PANEL_RESB); | ||
gpio_free(LCD_PANEL_QVGA); | ||
gpio_free(LCD_PANEL_INI); | ||
gpio_free(LCD_PANEL_UD); | ||
gpio_free(LCD_PANEL_LR); | ||
gpio_free(LCD_PANEL_ENABLE_GPIO); | ||
} | ||
|
||
static int omap2evm_panel_enable(struct lcd_panel *panel) | ||
{ | ||
gpio_set_value(LCD_PANEL_ENABLE_GPIO, 0); | ||
return 0; | ||
} | ||
|
||
static void omap2evm_panel_disable(struct lcd_panel *panel) | ||
{ | ||
gpio_set_value(LCD_PANEL_ENABLE_GPIO, 1); | ||
} | ||
|
||
static unsigned long omap2evm_panel_get_caps(struct lcd_panel *panel) | ||
{ | ||
return 0; | ||
} | ||
|
||
static int omap2evm_bklight_setlevel(struct lcd_panel *panel, | ||
unsigned int level) | ||
{ | ||
u8 c; | ||
if ((level >= 0) && (level <= 100)) { | ||
c = (125 * (100 - level)) / 100 + 2; | ||
twl4030_i2c_write_u8(TWL4030_MODULE_PWMA, c, TWL_PWMA_PWMAOFF); | ||
bklight_level = level; | ||
} | ||
return 0; | ||
} | ||
|
||
static unsigned int omap2evm_bklight_getlevel(struct lcd_panel *panel) | ||
{ | ||
return bklight_level; | ||
} | ||
|
||
static unsigned int omap2evm_bklight_getmaxlevel(struct lcd_panel *panel) | ||
{ | ||
return 100; | ||
} | ||
|
||
struct lcd_panel omap2evm_panel = { | ||
.name = "omap2evm", | ||
.config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | | ||
OMAP_LCDC_INV_HSYNC, | ||
|
||
.bpp = 16, | ||
.data_lines = 18, | ||
.x_res = 480, | ||
.y_res = 640, | ||
.hsw = 3, | ||
.hfp = 0, | ||
.hbp = 28, | ||
.vsw = 2, | ||
.vfp = 1, | ||
.vbp = 0, | ||
|
||
.pixel_clock = 20000, | ||
|
||
.init = omap2evm_panel_init, | ||
.cleanup = omap2evm_panel_cleanup, | ||
.enable = omap2evm_panel_enable, | ||
.disable = omap2evm_panel_disable, | ||
.get_caps = omap2evm_panel_get_caps, | ||
.set_bklight_level = omap2evm_bklight_setlevel, | ||
.get_bklight_level = omap2evm_bklight_getlevel, | ||
.get_bklight_max = omap2evm_bklight_getmaxlevel, | ||
}; | ||
|
||
static int omap2evm_panel_probe(struct platform_device *pdev) | ||
{ | ||
omapfb_register_panel(&omap2evm_panel); | ||
return 0; | ||
} | ||
|
||
static int omap2evm_panel_remove(struct platform_device *pdev) | ||
{ | ||
return 0; | ||
} | ||
|
||
static int omap2evm_panel_suspend(struct platform_device *pdev, | ||
pm_message_t mesg) | ||
{ | ||
return 0; | ||
} | ||
|
||
static int omap2evm_panel_resume(struct platform_device *pdev) | ||
{ | ||
return 0; | ||
} | ||
|
||
struct platform_driver omap2evm_panel_driver = { | ||
.probe = omap2evm_panel_probe, | ||
.remove = omap2evm_panel_remove, | ||
.suspend = omap2evm_panel_suspend, | ||
.resume = omap2evm_panel_resume, | ||
.driver = { | ||
.name = "omap2evm_lcd", | ||
.owner = THIS_MODULE, | ||
}, | ||
}; | ||
|
||
static int __init omap2evm_panel_drv_init(void) | ||
{ | ||
return platform_driver_register(&omap2evm_panel_driver); | ||
} | ||
|
||
static void __exit omap2evm_panel_drv_exit(void) | ||
{ | ||
platform_driver_unregister(&omap2evm_panel_driver); | ||
} | ||
|
||
module_init(omap2evm_panel_drv_init); | ||
module_exit(omap2evm_panel_drv_exit); |