mfd: lp873x: Remove unused mutex lock from struct lp873x

The mutex is not used, so remove it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/drivers/mfd/lp873x.c b/drivers/mfd/lp873x.c
index 9af064c..873c608 100644 (file)
--- a/drivers/mfd/lp873x.c
+++ b/drivers/mfd/lp873x.c
@@ -53,8 +53,6 @@ static int lp873x_probe(struct i2c_client *client,
                return ret;
        }
 
-       mutex_init(&lp873->lock);
-
        ret = regmap_read(lp873->regmap, LP873X_REG_OTP_REV, &otpid);
        if (ret) {
                dev_err(lp873->dev, "Failed to read OTP ID\n");

diff --git a/include/linux/mfd/lp873x.h b/include/linux/mfd/lp873x.h
index 83b1bd7..edbec83 100644 (file)
--- a/include/linux/mfd/lp873x.h
+++ b/include/linux/mfd/lp873x.h
@@ -263,7 +263,6 @@ enum lp873x_regulator_id {
 struct lp873x {
        struct device *dev;
        u8 rev;
-       struct mutex lock;      /* lock guarding the data structure */
        struct regmap *regmap;
 };
 #endif /* __LINUX_MFD_LP873X_H */