From: Johan Hovold Date: Tue, 12 Nov 2013 23:09:38 +0000 (-0800) Subject: backlight: atmel-pwm-bl: fix reported brightness X-Git-Tag: v3.12.3~194 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9753c75ab81ed8938f02b3da94562e45b45b9dae;p=thirdparty%2Fkernel%2Fstable.git backlight: atmel-pwm-bl: fix reported brightness commit 185d91442550110db67a7dc794a32efcea455a36 upstream. The driver supports 16-bit brightness values, but the value returned from get_brightness was truncated to eight bits. Signed-off-by: Johan Hovold Cc: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 1d5aa482b5172..d18da911ed0e3 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) { struct atmel_pwm_bl *pwmbl = bl_get_data(bd); - u8 intensity; + u32 intensity; if (pwmbl->pdata->pwm_active_low) { intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - @@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); } - return intensity; + return intensity & 0xffff; } static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl)