[PATCH 7/9] backlight: atmel-pwm-bl: use gpio_is_valid
From: Johan Hovold <hidden>
Date: 2013-10-23 09:56:08
Also in:
lkml
Subsystem:
backlight class/subsystem, framebuffer layer, the rest · Maintainers:
Lee Jones, Daniel Thompson, Jingoo Han, Helge Deller, Linus Torvalds
Use gpio_is_valid rather than open coding the more restrictive != -1 test. Acked-by: Jingoo Han <redacted> Signed-off-by: Johan Hovold <redacted> --- 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