regulator: Simplify the code to get selector in isl6271a_set_voltage
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
index c1a456c..775f5fd 100644
--- a/drivers/regulator/isl6271a-regulator.c
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -63,23 +63,15 @@
unsigned *selector)
{
struct isl_pmic *pmic = rdev_get_drvdata(dev);
- int vsel, err, data;
+ int err, data;
if (minuV < ISL6271A_VOLTAGE_MIN || minuV > ISL6271A_VOLTAGE_MAX)
return -EINVAL;
if (maxuV < ISL6271A_VOLTAGE_MIN || maxuV > ISL6271A_VOLTAGE_MAX)
return -EINVAL;
- /* Align to 50000 mV */
- vsel = minuV - (minuV % ISL6271A_VOLTAGE_STEP);
-
- /* If the result fell out of [minuV,maxuV] range, put it back */
- if (vsel < minuV)
- vsel += ISL6271A_VOLTAGE_STEP;
-
- /* Convert the microvolts to data for the chip */
- data = (vsel - ISL6271A_VOLTAGE_MIN) / ISL6271A_VOLTAGE_STEP;
-
+ data = DIV_ROUND_UP(minuV - ISL6271A_VOLTAGE_MIN,
+ ISL6271A_VOLTAGE_STEP);
*selector = data;
mutex_lock(&pmic->mtx);