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newton:modify backlight

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This commit is contained in:
蔡枫
2011-08-11 14:37:15 +08:00
parent d1b81ed904
commit 9268738548
1 changed files with 20 additions and 69 deletions
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89
arch/arm/mach-rk29/board-rk29-newton.c
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@@ -185,6 +185,9 @@ struct rk29_nand_platform_data rk29_nand_data = {
#define FB_LCD_STANDBY_VALUE GPIO_HIGH
//#define FB_LCD_STANDBY_VALUE GPIO_LOW
#define NEWTON_LCD_DISP RK29_PIN1_PD6
#define NEWTON_LCD_EN RK29_PIN6_PD1
static int rk29_lcd_io_init(void)
{
int ret = 0;
@@ -207,88 +210,36 @@ static struct rk29lcd_info rk29_lcd_info = {
int rk29_fb_io_enable(void)
{
if(FB_DISPLAY_ON_PIN != INVALID_GPIO)
{
gpio_direction_output(FB_DISPLAY_ON_PIN, 0);
gpio_set_value(FB_DISPLAY_ON_PIN, FB_DISPLAY_ON_VALUE);
}
if(FB_LCD_STANDBY_PIN != INVALID_GPIO)
{
gpio_direction_output(FB_LCD_STANDBY_PIN, 0);
gpio_set_value(FB_LCD_STANDBY_PIN, FB_LCD_STANDBY_VALUE);
}
gpio_direction_output(NEWTON_LCD_DISP, 0);
gpio_set_value(NEWTON_LCD_DISP,GPIO_HIGH);
gpio_direction_output(NEWTON_LCD_EN, 0);
gpio_set_value(NEWTON_LCD_EN,GPIO_HIGH);
return 0;
}
int rk29_fb_io_disable(void)
{
if(FB_DISPLAY_ON_PIN != INVALID_GPIO)
{
gpio_direction_output(FB_DISPLAY_ON_PIN, 0);
gpio_set_value(FB_DISPLAY_ON_PIN, !FB_DISPLAY_ON_VALUE);
}
if(FB_LCD_STANDBY_PIN != INVALID_GPIO)
{
gpio_direction_output(FB_LCD_STANDBY_PIN, 0);
gpio_set_value(FB_LCD_STANDBY_PIN, !FB_LCD_STANDBY_VALUE);
}
gpio_direction_output(NEWTON_LCD_DISP, 0);
gpio_set_value(NEWTON_LCD_DISP,GPIO_LOW);
gpio_direction_output(NEWTON_LCD_EN, 0);
gpio_set_value(NEWTON_LCD_EN,GPIO_LOW);
return 0;
}
static int rk29_fb_io_init(struct rk29_fb_setting_info *fb_setting)
{
int ret = 0;
if(fb_setting->mcu_fmk_en && (FB_MCU_FMK_PIN != INVALID_GPIO))
{
ret = gpio_request(FB_MCU_FMK_PIN, NULL);
if(ret != 0)
{
gpio_free(FB_MCU_FMK_PIN);
printk(">>>>>> FB_MCU_FMK_PIN gpio_request err \n ");
}
gpio_direction_input(FB_MCU_FMK_PIN);
if(gpio_request(NEWTON_LCD_DISP,NULL) != 0){
gpio_free(NEWTON_LCD_DISP);
printk("NEWTON_LCD_DISP gpio_request error\n");
return -EIO;
}
if(fb_setting->disp_on_en)
{
if(FB_DISPLAY_ON_PIN != INVALID_GPIO)
{
ret = gpio_request(FB_DISPLAY_ON_PIN, NULL);
if(ret != 0)
{
gpio_free(FB_DISPLAY_ON_PIN);
printk(">>>>>> FB_DISPLAY_ON_PIN gpio_request err \n ");
}
}
if(gpio_request(NEWTON_LCD_EN,NULL) != 0){
gpio_free(NEWTON_LCD_EN);
printk("NEWTON_LCD_EN gpio_request error\n");
return -EIO;
}
if(fb_setting->disp_on_en)
{
if(FB_LCD_STANDBY_PIN != INVALID_GPIO)
{
ret = gpio_request(FB_LCD_STANDBY_PIN, NULL);
if(ret != 0)
{
gpio_free(FB_LCD_STANDBY_PIN);
printk(">>>>>> FB_LCD_STANDBY_PIN gpio_request err \n ");
}
}
}
if(FB_LCD_CABC_EN_PIN != INVALID_GPIO)
{
ret = gpio_request(FB_LCD_CABC_EN_PIN, NULL);
if(ret != 0)
{
gpio_free(FB_LCD_CABC_EN_PIN);
printk(">>>>>> FB_LCD_CABC_EN_PIN gpio_request err \n ");
}
gpio_direction_output(FB_LCD_CABC_EN_PIN, 0);
gpio_set_value(FB_LCD_CABC_EN_PIN, GPIO_LOW);
}
rk29_fb_io_enable(); //enable it
return ret;
return 0;
}