On Tue, May 29, 2018 at 01:02:15PM +0300, Matti Vaittinen wrote: > @@ -0,0 +1,677 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* Copyright (C) 2018 ROHM Semiconductors */ > +/* > + * bd71837-regulator.c ROHM BD71837MWV regulator driver > + */ The SPDX header (and the rest of the block) need to be C++ comments. > +static int bd71837_regulator_set_regmap(struct regulator_dev *rdev, int set) > +{ > + int ret = -EINVAL; > + struct bd71837_pmic *pmic = rdev->reg_data; > + > + /* According to the data sheet we must not change regulator voltage > + * when it is enabled. Thus we need to check if regulator is enabled > + * before changing the voltage. This mutex is used to avoid race where > + * we might enable regulator after it's state has been checked but > + * before the voltage is changed > + */ > + mutex_lock(&pmic->mtx); > + if (!set) > + ret = regulator_disable_regmap(rdev); > + else > + ret = regulator_enable_regmap(rdev); > + mutex_unlock(&pmic->mtx); > + This still has the weird locking/wrapper thing going on. The regulator core will ensure that only one operation is called on a given regulator at once. > +static const struct regulator_desc bd71837_regulators[] = { > + { > + .name = "buck1", The indentation style here is weird, please follow CodingStyle. Looks like the second level is just indented by a space for some reason, and there's similar problems elsewhere.
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