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rk30:modify goodix touch screen initialize

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This commit is contained in:
lw
2012-03-07 14:26:39 +08:00
parent 79e3c3798a
commit 5f3f34791d
1 changed files with 25 additions and 18 deletions
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43
arch/arm/mach-rk30/board-rk30-sdk.c
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@@ -59,26 +59,33 @@ int goodix_init_platform_hw(void)
{
int ret;
printk("goodix_init_platform_hw\n");
ret = gpio_request(TOUCH_PWR_PIN, "goodix power pin");
if(ret != 0){
gpio_free(TOUCH_PWR_PIN);
printk("goodix power error\n");
return -EIO;
if(TOUCH_PWR_PIN != INVALID_GPIO)
{
ret = gpio_request(TOUCH_PWR_PIN, "goodix power pin");
if(ret != 0){
gpio_free(TOUCH_PWR_PIN);
printk("goodix power error\n");
return -EIO;
}
gpio_direction_output(TOUCH_PWR_PIN, 0);
gpio_set_value(TOUCH_PWR_PIN,GPIO_LOW);
msleep(100);
}
gpio_direction_output(TOUCH_PWR_PIN, 0);
gpio_set_value(TOUCH_PWR_PIN,GPIO_LOW);
msleep(100);
ret = gpio_request(TOUCH_RESET_PIN, "goodix reset pin");
if(ret != 0){
gpio_free(TOUCH_RESET_PIN);
printk("goodix gpio_request error\n");
return -EIO;
if(TOUCH_RESET_PIN != INVALID_GPIO)
{
ret = gpio_request(TOUCH_RESET_PIN, "goodix reset pin");
if(ret != 0){
gpio_free(TOUCH_RESET_PIN);
printk("goodix gpio_request error\n");
return -EIO;
}
gpio_direction_output(TOUCH_RESET_PIN, 0);
gpio_set_value(TOUCH_RESET_PIN,GPIO_LOW);
msleep(10);
gpio_set_value(TOUCH_RESET_PIN,GPIO_HIGH);
msleep(500);
}
gpio_direction_output(TOUCH_RESET_PIN, 0);
gpio_set_value(TOUCH_RESET_PIN,GPIO_LOW);
msleep(10);
gpio_set_value(TOUCH_RESET_PIN,GPIO_HIGH);
msleep(500);
return 0;
}