diff options
Diffstat (limited to 'drivers/hwmon/w83793.c')
| -rw-r--r-- | drivers/hwmon/w83793.c | 62 |
1 files changed, 22 insertions, 40 deletions
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c index 47dd398f725..9a2022b6749 100644 --- a/drivers/hwmon/w83793.c +++ b/drivers/hwmon/w83793.c @@ -41,7 +41,6 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END }; /* Insmod parameters */ -I2C_CLIENT_INSMOD_1(w83793); static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); @@ -230,7 +229,7 @@ static u8 w83793_read_value(struct i2c_client *client, u16 reg); static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value); static int w83793_probe(struct i2c_client *client, const struct i2c_device_id *id); -static int w83793_detect(struct i2c_client *client, int kind, +static int w83793_detect(struct i2c_client *client, struct i2c_board_info *info); static int w83793_remove(struct i2c_client *client); static void w83793_init_client(struct i2c_client *client); @@ -238,7 +237,7 @@ static void w83793_update_nonvolatile(struct device *dev); static struct w83793_data *w83793_update_device(struct device *dev); static const struct i2c_device_id w83793_id[] = { - { "w83793", w83793 }, + { "w83793", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, w83793_id); @@ -252,7 +251,7 @@ static struct i2c_driver w83793_driver = { .remove = w83793_remove, .id_table = w83793_id, .detect = w83793_detect, - .address_data = &addr_data, + .address_list = normal_i2c, }; static ssize_t @@ -1161,10 +1160,10 @@ ERROR_SC_0: } /* Return 0 if detection is successful, -ENODEV otherwise */ -static int w83793_detect(struct i2c_client *client, int kind, +static int w83793_detect(struct i2c_client *client, struct i2c_board_info *info) { - u8 tmp, bank; + u8 tmp, bank, chip_id; struct i2c_adapter *adapter = client->adapter; unsigned short address = client->addr; @@ -1174,44 +1173,27 @@ static int w83793_detect(struct i2c_client *client, int kind, bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL); - if (kind < 0) { - tmp = bank & 0x80 ? 0x5c : 0xa3; - /* Check Winbond vendor ID */ - if (tmp != i2c_smbus_read_byte_data(client, - W83793_REG_VENDORID)) { - pr_debug("w83793: Detection failed at check " - "vendor id\n"); - return -ENODEV; - } - - /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR - should match */ - if ((bank & 0x07) == 0 - && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != - (address << 1)) { - pr_debug("w83793: Detection failed at check " - "i2c addr\n"); - return -ENODEV; - } - + tmp = bank & 0x80 ? 0x5c : 0xa3; + /* Check Winbond vendor ID */ + if (tmp != i2c_smbus_read_byte_data(client, W83793_REG_VENDORID)) { + pr_debug("w83793: Detection failed at check vendor id\n"); + return -ENODEV; } - /* We have either had a force parameter, or we have already detected the - Winbond. Determine the chip type now */ - - if (kind <= 0) { - if (0x7b == i2c_smbus_read_byte_data(client, - W83793_REG_CHIPID)) { - kind = w83793; - } else { - if (kind == 0) - dev_warn(&adapter->dev, "w83793: Ignoring " - "'force' parameter for unknown chip " - "at address 0x%02x\n", address); - return -ENODEV; - } + /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR + should match */ + if ((bank & 0x07) == 0 + && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) != + (address << 1)) { + pr_debug("w83793: Detection failed at check i2c addr\n"); + return -ENODEV; } + /* Determine the chip type now */ + chip_id = i2c_smbus_read_byte_data(client, W83793_REG_CHIPID); + if (chip_id != 0x7b) + return -ENODEV; + strlcpy(info->type, "w83793", I2C_NAME_SIZE); return 0; |