From 48ee1160a44b6f404f5553a6fce8447507982311 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 2 Mar 2012 09:19:02 +0800 Subject: [PATCH] regulator: Simplify the code to get selector in isl6271a_set_voltage Signed-off-by: Axel Lin Acked-by: Marek Vasut Signed-off-by: Mark Brown --- drivers/regulator/isl6271a-regulator.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) 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 @@ 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); -- 2.7.4