Commit 185d9144 authored by Johan Hovold's avatar Johan Hovold Committed by Linus Torvalds

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: default avatarJohan Hovold <jhovold@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bcd5b416
...@@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) ...@@ -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) static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
{ {
struct atmel_pwm_bl *pwmbl = bl_get_data(bd); struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
u8 intensity; u32 intensity;
if (pwmbl->pdata->pwm_active_low) { if (pwmbl->pdata->pwm_active_low) {
intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) - intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) -
...@@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd) ...@@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY); pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
} }
return intensity; return intensity & 0xffff;
} }
static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl) static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl)
......
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