diff options
Diffstat (limited to 'drivers/hwmon/ds1621.c')
| -rw-r--r-- | drivers/hwmon/ds1621.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c index 98adf77fdc84..8e940ad9cb36 100644 --- a/drivers/hwmon/ds1621.c +++ b/drivers/hwmon/ds1621.c @@ -46,10 +46,6 @@ #include <linux/sysfs.h> #include <linux/kernel.h> -/* Addresses to scan */ -static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, 0x4c, - 0x4d, 0x4e, 0x4f, I2C_CLIENT_END }; - /* Supported devices */ enum chips { ds1621, ds1625, ds1631, ds1721 }; @@ -358,48 +354,6 @@ static const struct attribute_group ds1621_group = { .is_visible = ds1621_attribute_visible }; - -/* Return 0 if detection is successful, -ENODEV otherwise */ -static int ds1621_detect(struct i2c_client *client, - struct i2c_board_info *info) -{ - struct i2c_adapter *adapter = client->adapter; - int conf, temp; - int i; - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA - | I2C_FUNC_SMBUS_WORD_DATA - | I2C_FUNC_SMBUS_WRITE_BYTE)) - return -ENODEV; - - /* - * Now, we do the remaining detection. It is lousy. - * - * The NVB bit should be low if no EEPROM write has been requested - * during the latest 10ms, which is highly improbable in our case. - */ - conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF); - if (conf < 0 || conf & DS1621_REG_CONFIG_NVB) - return -ENODEV; - /* - * The ds1621 & ds1625 use 9-bit resolution, so the 7 lowest bits - * of the temperature should always be 0 (NOTE: The other chips - * have multi-resolution support, so if they have 9-bit resolution - * configured and the min/max temperature values set accordingly, - * then if not explicitly instantiated, they *will* appear as and - * emulate a ds1621 device). - */ - for (i = 0; i < ARRAY_SIZE(DS1621_REG_TEMP); i++) { - temp = i2c_smbus_read_word_data(client, DS1621_REG_TEMP[i]); - if (temp < 0 || (temp & 0x7f00)) - return -ENODEV; - } - - strlcpy(info->type, "ds1621", I2C_NAME_SIZE); - - return 0; -} - static int ds1621_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -465,8 +419,6 @@ static struct i2c_driver ds1621_driver = { .probe = ds1621_probe, .remove = ds1621_remove, .id_table = ds1621_id, - .detect = ds1621_detect, - .address_list = normal_i2c, }; module_i2c_driver(ds1621_driver); |