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path: root/drivers/hwmon/tmp421.c
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Diffstat (limited to 'drivers/hwmon/tmp421.c')
-rw-r--r--drivers/hwmon/tmp421.c45
1 files changed, 21 insertions, 24 deletions
diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c
index 20924343431..bb5464a289c 100644
--- a/drivers/hwmon/tmp421.c
+++ b/drivers/hwmon/tmp421.c
@@ -223,39 +223,36 @@ static int tmp421_init_client(struct i2c_client *client)
return 0;
}
-static int tmp421_detect(struct i2c_client *client, int kind,
+static int tmp421_detect(struct i2c_client *client, int _kind,
struct i2c_board_info *info)
{
+ enum chips kind;
struct i2c_adapter *adapter = client->adapter;
const char *names[] = { "TMP421", "TMP422", "TMP423" };
+ u8 reg;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
- if (kind <= 0) {
- u8 reg;
-
- reg = i2c_smbus_read_byte_data(client,
- TMP421_MANUFACTURER_ID_REG);
- if (reg != TMP421_MANUFACTURER_ID)
- return -ENODEV;
-
- reg = i2c_smbus_read_byte_data(client,
- TMP421_DEVICE_ID_REG);
- switch (reg) {
- case TMP421_DEVICE_ID:
- kind = tmp421;
- break;
- case TMP422_DEVICE_ID:
- kind = tmp422;
- break;
- case TMP423_DEVICE_ID:
- kind = tmp423;
- break;
- default:
- return -ENODEV;
- }
+ reg = i2c_smbus_read_byte_data(client, TMP421_MANUFACTURER_ID_REG);
+ if (reg != TMP421_MANUFACTURER_ID)
+ return -ENODEV;
+
+ reg = i2c_smbus_read_byte_data(client, TMP421_DEVICE_ID_REG);
+ switch (reg) {
+ case TMP421_DEVICE_ID:
+ kind = tmp421;
+ break;
+ case TMP422_DEVICE_ID:
+ kind = tmp422;
+ break;
+ case TMP423_DEVICE_ID:
+ kind = tmp423;
+ break;
+ default:
+ return -ENODEV;
}
+
strlcpy(info->type, tmp421_id[kind - 1].name, I2C_NAME_SIZE);
dev_info(&adapter->dev, "Detected TI %s chip at 0x%02x\n",
names[kind - 1], client->addr);