regulator: wm8400: Use DIV_ROUND_UP macro to calculate selector

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>

diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 706f39563a7b76f149173503e17baae77905d198..8477153780b637b3fc8218f82334563c55216cca 100644 (file)
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -78,14 +78,14 @@ static int wm8400_ldo_set_voltage(struct regulator_dev *dev,
 
        if (min_uV < 1700000) {
                /* Steps of 50mV from 900mV;  */
-               val = (min_uV - 850001) / 50000;
+               val = DIV_ROUND_UP(min_uV - 900000, 50000);
 
                if ((val * 50000) + 900000 > max_uV)
                        return -EINVAL;
                BUG_ON((val * 50000) + 900000 < min_uV);
        } else {
                /* Steps of 100mV from 1700mV */
-               val = ((min_uV - 1600001) / 100000);
+               val = DIV_ROUND_UP(min_uV - 1700000, 100000);
 
                if ((val * 100000) + 1700000 > max_uV)
                        return -EINVAL;
@@ -168,7 +168,7 @@ static int wm8400_dcdc_set_voltage(struct regulator_dev *dev,
        if (min_uV < 850000)
                return -EINVAL;
 
-       val = (min_uV - 825001) / 25000;
+       val = DIV_ROUND_UP(min_uV - 850000, 25000);
 
        if (850000 + (25000 * val) > max_uV)
                return -EINVAL;