From: Johan Hovold Date: Tue, 12 Nov 2013 23:09:38 +0000 (-0800) Subject: backlight: atmel-pwm-bl: fix reported brightness X-Git-Tag: v4.9.8~7478^2~113 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=185d91442550110db67a7dc794a32efcea455a36;p=platform%2Fkernel%2Flinux-rpi3.git backlight: atmel-pwm-bl: fix reported brightness 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 Cc: 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 66885fb..0971a8e 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)