regulator: max1586: Use DIV_ROUND_UP macro to calculate selector
Axel Lin [Fri, 2 Mar 2012 08:22:01 +0000 (16:22 +0800)]
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/max1586.c

index 40e7a4d..282d2ee 100644 (file)
@@ -76,8 +76,8 @@ static int max1586_v3_set(struct regulator_dev *rdev, int min_uV, int max_uV,
        if (min_uV < max1586->min_uV)
                min_uV = max1586->min_uV;
 
-       *selector = ((min_uV - max1586->min_uV) * MAX1586_V3_MAX_VSEL +
-                       range_uV - 1) / range_uV;
+       *selector = DIV_ROUND_UP((min_uV - max1586->min_uV) *
+                                MAX1586_V3_MAX_VSEL, range_uV);
        if (max1586_v3_calc_voltage(max1586, *selector) > max_uV)
                return -EINVAL;