regulator: max8649: Use DIV_ROUND_UP macro to calculate selector
Axel Lin [Thu, 8 Mar 2012 02:05:24 +0000 (10:05 +0800)]
Use DIV_ROUND_UP macro for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/max8649.c

index 636dfd4..82505fc 100644 (file)
@@ -101,8 +101,7 @@ static int max8649_set_voltage(struct regulator_dev *rdev,
                        min_uV, max_uV);
                return -EINVAL;
        }
-       data = (min_uV - MAX8649_DCDC_VMIN + MAX8649_DCDC_STEP - 1)
-               / MAX8649_DCDC_STEP;
+       data = DIV_ROUND_UP(min_uV - MAX8649_DCDC_VMIN, MAX8649_DCDC_STEP);
        mask = MAX8649_VOL_MASK;
        *selector = data & mask;