mfd: tps65218: Remove redundant read wrapper

Currently read directly calls the repmap read function. Hence
remove the redundant wrapper and use regmap read wherever
needed.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/gpio/gpio-tps65218.c

@@ -16,6 +16,7 @@
 #include <linux/errno.h>
 #include <linux/gpio/driver.h>
 #include <linux/platform_device.h>
+#include <linux/regmap.h>
 #include <linux/mfd/tps65218.h>
 
 struct tps65218_gpio {
@@ -30,7 +31,7 @@ static int tps65218_gpio_get(struct gpio_chip *gc, unsigned offset)
 	unsigned int val;
 	int ret;
 
-	ret = tps65218_reg_read(tps65218, TPS65218_REG_ENABLE2, &val);
+	ret = regmap_read(tps65218->regmap, TPS65218_REG_ENABLE2, &val);
 	if (ret)
 		return ret;
 

drivers/mfd/tps65218.c

@@ -33,20 +33,6 @@
 
 #define TPS65218_PASSWORD_REGS_UNLOCK   0x7D
 
-/**
- * tps65218_reg_read: Read a single tps65218 register.
- *
- * @tps: Device to read from.
- * @reg: Register to read.
- * @val: Contians the value
- */
-int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
-			unsigned int *val)
-{
-	return regmap_read(tps->regmap, reg, val);
-}
-EXPORT_SYMBOL_GPL(tps65218_reg_read);
-
 /**
  * tps65218_reg_write: Write a single tps65218 register.
  *
@@ -93,7 +79,7 @@ static int tps65218_update_bits(struct tps65218 *tps, unsigned int reg,
 	int ret;
 	unsigned int data;
 
-	ret = tps65218_reg_read(tps, reg, &data);
+	ret = regmap_read(tps->regmap, reg, &data);
 	if (ret) {
 		dev_err(tps->dev, "Read from reg 0x%x failed\n", reg);
 		return ret;
@@ -251,7 +237,7 @@ static int tps65218_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
-	ret = tps65218_reg_read(tps, TPS65218_REG_CHIPID, &chipid);
+	ret = regmap_read(tps->regmap, TPS65218_REG_CHIPID, &chipid);
 	if (ret) {
 		dev_err(tps->dev, "Failed to read chipid: %d\n", ret);
 		return ret;

drivers/regulator/tps65218-regulator.c

@@ -22,6 +22,7 @@
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/of_device.h>
+#include <linux/regmap.h>
 #include <linux/regulator/of_regulator.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
@@ -272,7 +273,7 @@ static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
 	unsigned int index;
 	struct tps65218 *tps = rdev_get_drvdata(dev);
 
-	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
+	retval = regmap_read(tps->regmap, dev->desc->csel_reg, &index);
 	if (retval < 0)
 		return retval;
 
@@ -383,7 +384,7 @@ static int tps65218_regulator_probe(struct platform_device *pdev)
 		return PTR_ERR(rdev);
 	}
 
-	ret = tps65218_reg_read(tps, regulators[id].bypass_reg, &val);
+	ret = regmap_read(tps->regmap, regulators[id].bypass_reg, &val);
 	if (ret)
 		return ret;
 

include/linux/mfd/tps65218.h

@@ -284,8 +284,6 @@ struct tps65218 {
 	struct regmap *regmap;
 };
 
-int tps65218_reg_read(struct tps65218 *tps, unsigned int reg,
-					unsigned int *val);
 int tps65218_reg_write(struct tps65218 *tps, unsigned int reg,
 			unsigned int val, unsigned int level);
 int tps65218_set_bits(struct tps65218 *tps, unsigned int reg,