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rk3066b sdk:modify lcd screen io control

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This commit is contained in:
yxj
2012-08-31 20:12:06 +08:00
parent 2291d933ba
commit d82d976c09
1 changed files with 44 additions and 24 deletions
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68
arch/arm/mach-rk30/board-rk3066b-sdk.c
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@@ -451,49 +451,69 @@ static struct sensor_platform_data cm3217_info = {
#ifdef CONFIG_FB_ROCKCHIP
#define LCD_CS_PIN RK30_PIN0_PB0
#define LCD_CS_PIN INVALID_GPIO
#define LCD_CS_VALUE GPIO_HIGH
#define LCD_EN_PIN RK30_PIN0_PB0
#define LCD_EN_VALUE GPIO_LOW
#define LCD_EN_VALUE GPIO_HIGH
static int rk_fb_io_init(struct rk29_fb_setting_info *fb_setting)
{
int ret = 0;
ret = gpio_request(LCD_CS_PIN, NULL);
if (ret != 0)
if(LCD_CS_PIN !=INVALID_GPIO)
{
gpio_free(LCD_CS_PIN);
printk(KERN_ERR "request lcd cs pin fail!\n");
return -1;
ret = gpio_request(LCD_CS_PIN, NULL);
if (ret != 0)
{
gpio_free(LCD_CS_PIN);
printk(KERN_ERR "request lcd cs pin fail!\n");
return -1;
}
else
{
gpio_direction_output(LCD_CS_PIN, LCD_CS_VALUE);
}
}
else
if(LCD_EN_PIN !=INVALID_GPIO)
{
gpio_direction_output(LCD_CS_PIN, LCD_CS_VALUE);
}
ret = gpio_request(LCD_EN_PIN, NULL);
if (ret != 0)
{
gpio_free(LCD_EN_PIN);
printk(KERN_ERR "request lcd en pin fail!\n");
return -1;
}
else
{
gpio_direction_output(LCD_EN_PIN, LCD_EN_VALUE);
ret = gpio_request(LCD_EN_PIN, NULL);
if (ret != 0)
{
gpio_free(LCD_EN_PIN);
printk(KERN_ERR "request lcd en pin fail!\n");
return -1;
}
else
{
gpio_direction_output(LCD_EN_PIN, LCD_EN_VALUE);
}
}
return 0;
}
static int rk_fb_io_disable(void)
{
gpio_set_value(LCD_CS_PIN, LCD_CS_VALUE? 0:1);
gpio_set_value(LCD_EN_PIN, LCD_EN_VALUE? 0:1);
if(LCD_CS_PIN !=INVALID_GPIO)
{
gpio_set_value(LCD_CS_PIN, !LCD_CS_VALUE);
}
if(LCD_EN_PIN !=INVALID_GPIO)
{
gpio_set_value(LCD_EN_PIN, !LCD_EN_VALUE);
}
return 0;
}
static int rk_fb_io_enable(void)
{
gpio_set_value(LCD_CS_PIN, LCD_CS_VALUE);
gpio_set_value(LCD_EN_PIN, LCD_EN_VALUE);
if(LCD_CS_PIN !=INVALID_GPIO)
{
gpio_set_value(LCD_CS_PIN, LCD_CS_VALUE);
}
if(LCD_EN_PIN !=INVALID_GPIO)
{
gpio_set_value(LCD_EN_PIN, LCD_EN_VALUE);
}
return 0;
}