# \[PATCH v3 1/9\] backlight: atmel-pwm-bl: fix reported brightness - From: Johan Hovold \ - Date: 2013-10-31 17:58:25 - List: linux-fbdev - Page: https://ratatoskr.run/linux-fbdev/2013/10/4141993 - Thread: https://ratatoskr.run/linux-fbdev/2013/10/4137973/t.md ```text The driver supports 16-bit brightness values, but the value returned from get_brightness was truncated to eight bits. Cc: Signed-off-by: Johan Hovold --- drivers/video/backlight/atmel-pwm-bl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) 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) -- 1.8.4.2 ```