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>

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 01af5c2..abfaada 100644 (file)
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -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;
 }