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backlight: atmel-pwm-bl: fix reported brightness

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The driver supports 16-bit brightness values, but the value returned
from get_brightness was truncated to eight bits.

Signed-off-by: Johan Hovold <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Johan Hovold 2013-11-12 15:09:38 -08:00 • committed by Linus Torvalds
commit 185d914425
1 changed files with 2 additions and 2 deletions
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4
drivers/video/backlight/atmel-pwm-bl.c
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@ -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)