1 files changed, 57 insertions, 25 deletions

diff --git a/drivers/hwmon/adt7410.c b/drivers/hwmon/adt7410.c
index 973db057427b..aede5baca7b9 100644
--- a/drivers/hwmon/adt7410.c
+++ b/drivers/hwmon/adt7410.c
@@ -9,49 +9,82 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/regmap.h>
 
 #include "adt7x10.h"
 
-static int adt7410_i2c_read_word(struct device *dev, u8 reg)
+static bool adt7410_regmap_is_volatile(struct device *dev, unsigned int reg)
 {
-	return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
+	switch (reg) {
+	case ADT7X10_TEMPERATURE:
+	case ADT7X10_STATUS:
+		return true;
+	default:
+		return false;
+	}
 }
 
-static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
+static int adt7410_reg_read(void *context, unsigned int reg, unsigned int *val)
 {
-	return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
-}
+	struct i2c_client *client = context;
+	int regval;
 
-static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
-{
-	return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
+	switch (reg) {
+	case ADT7X10_TEMPERATURE:
+	case ADT7X10_T_ALARM_HIGH:
+	case ADT7X10_T_ALARM_LOW:
+	case ADT7X10_T_CRIT:
+		regval = i2c_smbus_read_word_swapped(client, reg);
+		break;
+	default:
+		regval = i2c_smbus_read_byte_data(client, reg);
+		break;
+	}
+	if (regval < 0)
+		return regval;
+	*val = regval;
+	return 0;
 }
 
-static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
+static int adt7410_reg_write(void *context, unsigned int reg, unsigned int val)
 {
-	return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
+	struct i2c_client *client = context;
+	int ret;
+
+	switch (reg) {
+	case ADT7X10_TEMPERATURE:
+	case ADT7X10_T_ALARM_HIGH:
+	case ADT7X10_T_ALARM_LOW:
+	case ADT7X10_T_CRIT:
+		ret = i2c_smbus_write_word_swapped(client, reg, val);
+		break;
+	default:
+		ret = i2c_smbus_write_byte_data(client, reg, val);
+		break;
+	}
+	return ret;
 }
 
-static const struct adt7x10_ops adt7410_i2c_ops = {
-	.read_word = adt7410_i2c_read_word,
-	.write_word = adt7410_i2c_write_word,
-	.read_byte = adt7410_i2c_read_byte,
-	.write_byte = adt7410_i2c_write_byte,
+static const struct regmap_config adt7410_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.max_register = ADT7X10_ID,
+	.cache_type = REGCACHE_RBTREE,
+	.volatile_reg = adt7410_regmap_is_volatile,
+	.reg_read = adt7410_reg_read,
+	.reg_write = adt7410_reg_write,
 };
 
 static int adt7410_i2c_probe(struct i2c_client *client)
 {
-	if (!i2c_check_functionality(client->adapter,
-			I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
-		return -ENODEV;
+	struct regmap *regmap;
 
-	return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
-}
+	regmap = devm_regmap_init(&client->dev, NULL, client,
+				  &adt7410_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
 
-static int adt7410_i2c_remove(struct i2c_client *client)
-{
-	adt7x10_remove(&client->dev, client->irq);
-	return 0;
+	return adt7x10_probe(&client->dev, client->name, client->irq, regmap);
 }
 
 static const struct i2c_device_id adt7410_ids[] = {
@@ -68,7 +101,6 @@ static struct i2c_driver adt7410_driver = {
 		.pm	= ADT7X10_DEV_PM_OPS,
 	},
 	.probe_new	= adt7410_i2c_probe,
-	.remove		= adt7410_i2c_remove,
 	.id_table	= adt7410_ids,
 	.address_list	= I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
 };