regulator: twl-regulator: Use DIV_ROUND_UP at appropriate places
Axel Lin [Mon, 9 Apr 2012 15:35:10 +0000 (23:35 +0800)]
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/twl-regulator.c

index 88bc32b..7384d27 100644 (file)
@@ -787,11 +787,7 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
                        vsel = 0;
                else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
                        int calc_uV;
-                       vsel = (min_uV - 600000) / 125;
-                       if (vsel % 100)
-                               vsel += 100;
-                       vsel /= 100;
-                       vsel++;
+                       vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
                        calc_uV = twl6030smps_list_voltage(rdev, vsel);
                        if (calc_uV > max_uV)
                                return -EINVAL;
@@ -817,11 +813,7 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
                        vsel = 0;
                else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
                        int calc_uV;
-                       vsel = (min_uV - 700000) / 125;
-                       if (vsel % 100)
-                               vsel += 100;
-                       vsel /= 100;
-                       vsel++;
+                       vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
                        calc_uV = twl6030smps_list_voltage(rdev, vsel);
                        if (calc_uV > max_uV)
                                return -EINVAL;
@@ -845,24 +837,14 @@ twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
        case SMPS_EXTENDED_EN:
                if (min_uV == 0)
                        vsel = 0;
-               else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
-                       vsel = (min_uV - 1852000) / 386;
-                       if (vsel % 100)
-                               vsel += 100;
-                       vsel /= 100;
-                       vsel++;
-               }
+               else if ((min_uV >= 1852000) && (max_uV <= 4013600))
+                       vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
                break;
        case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
                if (min_uV == 0)
                        vsel = 0;
-               else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
-                       vsel = (min_uV - 2161000) / 386;
-                       if (vsel % 100)
-                               vsel += 100;
-                       vsel /= 100;
-                       vsel++;
-               }
+               else if ((min_uV >= 2161000) && (max_uV <= 4321000))
+                       vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
                break;
        }