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| author | Axel Lin <axel.lin@gmail.com> | 2012-03-02 09:19:02 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-03-11 20:48:47 +0000 |
| commit | 48ee1160a44b6f404f5553a6fce8447507982311 (patch) | |
| tree | 43eba9f53da1041947b61ed963dd832e05278326 | |
| parent | 7b94791be6fb1c52c5ccb2cfde793da6c6b541b0 (diff) | |
| download | linux-48ee1160a44b6f404f5553a6fce8447507982311.tar.bz2 | |
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>
| -rw-r--r-- | drivers/regulator/isl6271a-regulator.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c index c1a456c4257c..775f5fd208c3 100644 --- a/drivers/regulator/isl6271a-regulator.c +++ b/drivers/regulator/isl6271a-regulator.c @@ -63,23 +63,15 @@ static int isl6271a_set_voltage(struct regulator_dev *dev, 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); |