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backlight: atmel-pwm-bl: clean up get_intensity 

Clean up get_intensity to increase readability.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
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 15:09:42 -08:00 committed by Linus Torvalds
parent ce726c9738
commit 9a26a84e3f
1 changed files with 6 additions and 7 deletions
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13
drivers/video/backlight/atmel-pwm-bl.c
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@ -70,15 +70,14 @@ 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);
u32 cdty;
u32 intensity;
if (pwmbl->pdata->pwm_active_low) {
intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) -
pwmbl->pdata->pwm_duty_min;
} else {
intensity = pwmbl->pdata->pwm_duty_max -
pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
}
cdty = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
if (pwmbl->pdata->pwm_active_low)
intensity = cdty - pwmbl->pdata->pwm_duty_min;
else
intensity = pwmbl->pdata->pwm_duty_max - cdty;
return intensity & 0xffff;
}