diff options
Diffstat (limited to 'drivers/hwmon/adt7410.c')
| -rw-r--r-- | drivers/hwmon/adt7410.c | 77 |
1 files changed, 58 insertions, 19 deletions
diff --git a/drivers/hwmon/adt7410.c b/drivers/hwmon/adt7410.c index 973db057427b..b1f4497dca05 100644 --- a/drivers/hwmon/adt7410.c +++ b/drivers/hwmon/adt7410.c @@ -9,43 +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; + + regmap = devm_regmap_init(&client->dev, NULL, client, + &adt7410_regmap_config); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); - return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops); + return adt7x10_probe(&client->dev, NULL, client->irq, regmap); } static int adt7410_i2c_remove(struct i2c_client *client) |