hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johan Hovold 2013-11-12 15:09:38 -08:00 committed by Linus Torvalds
parent bcd5b41656
commit 185d914425
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/video/backlight/atmel-pwm-bl.c
View File

@ -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)
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)