regulator: mc13783: Make mc13783_powermisc_rmw() lock protected
Then we can remove lock/unlock around the caller.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 4932e34..2587ea1 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -238,9 +238,10 @@
BUG_ON(val & ~mask);
+ mc13xxx_lock(priv->mc13xxx);
ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
if (ret)
- return ret;
+ goto out;
/* Update the stored state for Power Gates. */
priv->powermisc_pwgt_state =
@@ -253,7 +254,10 @@
valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
priv->powermisc_pwgt_state;
- return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+ ret = mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+out:
+ mc13xxx_unlock(priv->mc13xxx);
+ return ret;
}
static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
@@ -261,7 +265,6 @@
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int id = rdev_get_id(rdev);
- int ret;
u32 en_val = mc13xxx_regulators[id].enable_bit;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
@@ -271,12 +274,8 @@
id == MC13783_REG_PWGT2SPI)
en_val = 0;
- mc13xxx_lock(priv->mc13xxx);
- ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+ return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
en_val);
- mc13xxx_unlock(priv->mc13xxx);
-
- return ret;
}
static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
@@ -284,7 +283,6 @@
struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
int id = rdev_get_id(rdev);
- int ret;
u32 dis_val = 0;
dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
@@ -294,12 +292,8 @@
id == MC13783_REG_PWGT2SPI)
dis_val = mc13xxx_regulators[id].enable_bit;
- mc13xxx_lock(priv->mc13xxx);
- ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+ return mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
dis_val);
- mc13xxx_unlock(priv->mc13xxx);
-
- return ret;
}
static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)