Add helper function to control the gpio_on signal.
Acked-by: Jingoo Han <jg1....@samsung.com>
Signed-off-by: Johan Hovold <jhov...@gmail.com>
---
drivers/video/backlight/atmel-pwm-bl.c | 23 +++++++++++------------
1 file changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/video/backlight/atmel-pwm-bl.c
b/drivers/video/backlight/atmel-pwm-bl.c
index ffc30d2..1277e0c 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -26,6 +26,14 @@ struct atmel_pwm_bl {
int gpio_on;
};
+static void atmel_pwm_bl_set_gpio_on(struct atmel_pwm_bl *pwmbl, int on)
+{
+ if (!gpio_is_valid(pwmbl->gpio_on))
+ return;
+
+ gpio_set_value(pwmbl->gpio_on, on ^ pwmbl->pdata->on_active_low);
+}
+
static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
{
struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
@@ -48,19 +56,13 @@ static int atmel_pwm_bl_set_intensity(struct
backlight_device *bd)
pwm_duty = pwmbl->pdata->pwm_duty_min;
if (!intensity) {
- if (gpio_is_valid(pwmbl->gpio_on)) {
- gpio_set_value(pwmbl->gpio_on,
- 0 ^ pwmbl->pdata->on_active_low);
- }
+ atmel_pwm_bl_set_gpio_on(pwmbl, 0);
pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
pwm_channel_disable(&pwmbl->pwmc);
} else {
pwm_channel_enable(&pwmbl->pwmc);
pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
- if (gpio_is_valid(pwmbl->gpio_on)) {
- gpio_set_value(pwmbl->gpio_on,
- 1 ^ pwmbl->pdata->on_active_low);
- }
+ atmel_pwm_bl_set_gpio_on(pwmbl, 1);
}
return 0;
@@ -196,10 +198,7 @@ static int atmel_pwm_bl_remove(struct platform_device
*pdev)
{
struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
- if (gpio_is_valid(pwmbl->gpio_on)) {
- gpio_set_value(pwmbl->gpio_on,
- 0 ^ pwmbl->pdata->on_active_low);
- }
+ atmel_pwm_bl_set_gpio_on(pwmbl, 0);
pwm_channel_disable(&pwmbl->pwmc);
pwm_channel_free(&pwmbl->pwmc);
--
1.8.4
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