From: Johan Hovold <jhovold@xxxxxxxxx>
Subject: 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 <jhovold@xxxxxxxxx>
Cc: Jingoo Han <jg1.han@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/atmel-pwm-bl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/video/backlight/atmel-pwm-bl.c~backlight-atmel-pwm-bl-fix-reported-brightness drivers/video/backlight/atmel-pwm-bl.c
--- a/drivers/video/backlight/atmel-pwm-bl.c~backlight-atmel-pwm-bl-fix-reported-brightness
+++ a/drivers/video/backlight/atmel-pwm-bl.c
@@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(st
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(st
pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
}
- return intensity;
+ return intensity & 0xffff;
}
static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl)
_
--
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