Use gpio_is_valid rather than open coding the more restrictive != -1
test.
Signed-off-by: Johan Hovold <jhov...@gmail.com>
---
drivers/video/backlight/atmel-pwm-bl.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/video/backlight/atmel-pwm-bl.c
b/drivers/video/backlight/atmel-pwm-bl.c
index db68cab..ffc30d2 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -48,7 +48,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device
*bd)
pwm_duty = pwmbl->pdata->pwm_duty_min;
if (!intensity) {
- if (pwmbl->gpio_on != -1) {
+ if (gpio_is_valid(pwmbl->gpio_on)) {
gpio_set_value(pwmbl->gpio_on,
0 ^ pwmbl->pdata->on_active_low);
}
@@ -57,7 +57,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device
*bd)
} else {
pwm_channel_enable(&pwmbl->pwmc);
pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
- if (pwmbl->gpio_on != -1) {
+ if (gpio_is_valid(pwmbl->gpio_on)) {
gpio_set_value(pwmbl->gpio_on,
1 ^ pwmbl->pdata->on_active_low);
}
@@ -146,7 +146,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
if (retval)
return retval;
- if (pwmbl->gpio_on != -1) {
+ if (gpio_is_valid(pwmbl->gpio_on)) {
retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on,
"gpio_atmel_pwm_bl");
if (retval)
@@ -196,7 +196,7 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
{
struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
- if (pwmbl->gpio_on != -1) {
+ if (gpio_is_valid(pwmbl->gpio_on)) {
gpio_set_value(pwmbl->gpio_on,
0 ^ pwmbl->pdata->on_active_low);
}
--
1.8.4
--
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