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backlight: pwm_bl: Simplify usage of devm_gpiod_get_optional 

Since 39b2bbe3d7 (gpio: add flags argument to gpiod_get*() functions),
the gpiod_get* functions take an additional parameter that allows to
specify direction and initial value for output.
Simplify the usage of devm_gpiod_get_optional accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Axel Lin 2015-05-16 22:08:10 +08:00 committed by Lee Jones
parent 61c1c6147f
commit cdaefccefa
1 changed files with 2 additions and 4 deletions
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6
drivers/video/backlight/pwm_bl.c
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@ -241,7 +241,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->dev = &pdev->dev;
pb->enabled = false;
pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable");
pb->enable_gpio = devm_gpiod_get_optional(&pdev->dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(pb->enable_gpio)) {
ret = PTR_ERR(pb->enable_gpio);
goto err_alloc;
@ -263,9 +264,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
pb->enable_gpio = gpio_to_desc(data->enable_gpio);
}
if (pb->enable_gpio)
gpiod_direction_output(pb->enable_gpio, 1);
pb->power_supply = devm_regulator_get(&pdev->dev, "power");
if (IS_ERR(pb->power_supply)) {
ret = PTR_ERR(pb->power_supply);