diff options
Diffstat (limited to 'drivers/hwmon/lm77.c')
| -rw-r--r-- | drivers/hwmon/lm77.c | 92 |
1 files changed, 43 insertions, 49 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index 866b401ab6e8..b28a297be50c 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -39,9 +39,6 @@ static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4b, I2C_CLIENT_END }; -/* Insmod parameters */ -I2C_CLIENT_INSMOD_1(lm77); - /* The LM77 registers */ #define LM77_REG_TEMP 0x00 #define LM77_REG_CONF 0x01 @@ -66,8 +63,7 @@ struct lm77_data { static int lm77_probe(struct i2c_client *client, const struct i2c_device_id *id); -static int lm77_detect(struct i2c_client *client, int kind, - struct i2c_board_info *info); +static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info); static void lm77_init_client(struct i2c_client *client); static int lm77_remove(struct i2c_client *client); static u16 lm77_read_value(struct i2c_client *client, u8 reg); @@ -77,7 +73,7 @@ static struct lm77_data *lm77_update_device(struct device *dev); static const struct i2c_device_id lm77_id[] = { - { "lm77", lm77 }, + { "lm77", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, lm77_id); @@ -92,7 +88,7 @@ static struct i2c_driver lm77_driver = { .remove = lm77_remove, .id_table = lm77_id, .detect = lm77_detect, - .address_data = &addr_data, + .address_list = normal_i2c, }; /* straight from the datasheet */ @@ -245,10 +241,11 @@ static const struct attribute_group lm77_group = { }; /* Return 0 if detection is successful, -ENODEV otherwise */ -static int lm77_detect(struct i2c_client *new_client, int kind, +static int lm77_detect(struct i2c_client *new_client, struct i2c_board_info *info) { struct i2c_adapter *adapter = new_client->adapter; + int i, cur, conf, hyst, crit, min, max; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) @@ -265,51 +262,48 @@ static int lm77_detect(struct i2c_client *new_client, int kind, 4. registers cycling over 8-address boundaries Word-sized registers are high-byte first. */ - if (kind < 0) { - int i, cur, conf, hyst, crit, min, max; - - /* addresses cycling */ - cur = i2c_smbus_read_word_data(new_client, 0); - conf = i2c_smbus_read_byte_data(new_client, 1); - hyst = i2c_smbus_read_word_data(new_client, 2); - crit = i2c_smbus_read_word_data(new_client, 3); - min = i2c_smbus_read_word_data(new_client, 4); - max = i2c_smbus_read_word_data(new_client, 5); - for (i = 8; i <= 0xff; i += 8) - if (i2c_smbus_read_byte_data(new_client, i + 1) != conf - || i2c_smbus_read_word_data(new_client, i + 2) != hyst - || i2c_smbus_read_word_data(new_client, i + 3) != crit - || i2c_smbus_read_word_data(new_client, i + 4) != min - || i2c_smbus_read_word_data(new_client, i + 5) != max) - return -ENODEV; - - /* sign bits */ - if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0) - || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0) - || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0) - || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0) - || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0)) - return -ENODEV; - /* unused bits */ - if (conf & 0xe0) + /* addresses cycling */ + cur = i2c_smbus_read_word_data(new_client, 0); + conf = i2c_smbus_read_byte_data(new_client, 1); + hyst = i2c_smbus_read_word_data(new_client, 2); + crit = i2c_smbus_read_word_data(new_client, 3); + min = i2c_smbus_read_word_data(new_client, 4); + max = i2c_smbus_read_word_data(new_client, 5); + for (i = 8; i <= 0xff; i += 8) { + if (i2c_smbus_read_byte_data(new_client, i + 1) != conf + || i2c_smbus_read_word_data(new_client, i + 2) != hyst + || i2c_smbus_read_word_data(new_client, i + 3) != crit + || i2c_smbus_read_word_data(new_client, i + 4) != min + || i2c_smbus_read_word_data(new_client, i + 5) != max) return -ENODEV; + } - /* 0x06 and 0x07 return the last read value */ - cur = i2c_smbus_read_word_data(new_client, 0); - if (i2c_smbus_read_word_data(new_client, 6) != cur - || i2c_smbus_read_word_data(new_client, 7) != cur) - return -ENODEV; - hyst = i2c_smbus_read_word_data(new_client, 2); - if (i2c_smbus_read_word_data(new_client, 6) != hyst - || i2c_smbus_read_word_data(new_client, 7) != hyst) - return -ENODEV; - min = i2c_smbus_read_word_data(new_client, 4); - if (i2c_smbus_read_word_data(new_client, 6) != min - || i2c_smbus_read_word_data(new_client, 7) != min) - return -ENODEV; + /* sign bits */ + if (((cur & 0x00f0) != 0xf0 && (cur & 0x00f0) != 0x0) + || ((hyst & 0x00f0) != 0xf0 && (hyst & 0x00f0) != 0x0) + || ((crit & 0x00f0) != 0xf0 && (crit & 0x00f0) != 0x0) + || ((min & 0x00f0) != 0xf0 && (min & 0x00f0) != 0x0) + || ((max & 0x00f0) != 0xf0 && (max & 0x00f0) != 0x0)) + return -ENODEV; - } + /* unused bits */ + if (conf & 0xe0) + return -ENODEV; + + /* 0x06 and 0x07 return the last read value */ + cur = i2c_smbus_read_word_data(new_client, 0); + if (i2c_smbus_read_word_data(new_client, 6) != cur + || i2c_smbus_read_word_data(new_client, 7) != cur) + return -ENODEV; + hyst = i2c_smbus_read_word_data(new_client, 2); + if (i2c_smbus_read_word_data(new_client, 6) != hyst + || i2c_smbus_read_word_data(new_client, 7) != hyst) + return -ENODEV; + min = i2c_smbus_read_word_data(new_client, 4); + if (i2c_smbus_read_word_data(new_client, 6) != min + || i2c_smbus_read_word_data(new_client, 7) != min) + return -ENODEV; strlcpy(info->type, "lm77", I2C_NAME_SIZE); |