From: Johan Hovold Date: Tue, 12 Nov 2013 23:09:44 +0000 (-0800) Subject: backlight: atmel-pwm-bl: use gpio_is_valid X-Git-Tag: accepted/tizen/common/20141203.182822~1142^2~107 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5ada4550e86b081b889bced50e5ab6c510f9cdd7;p=platform%2Fkernel%2Flinux-arm64.git backlight: atmel-pwm-bl: use gpio_is_valid Use gpio_is_valid rather than open coding the more restrictive != -1 test. Signed-off-by: Johan Hovold Acked-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index bfd6a96..c254209 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); }