diff options
| author | Jean Delvare <khali@linux-fr.org> | 2009-12-09 20:35:57 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-12-09 20:35:57 +0100 |
| commit | 52df6440a29123eed912183fe785bbe174ef14b9 (patch) | |
| tree | 3a3b9f4110d21c2ec4f5711444dd9cec6fb3d32c /drivers/hwmon/lm92.c | |
| parent | a1fa4cdcc4abd4c02a81ab7052c16a342d29f060 (diff) | |
hwmon: Clean up detect functions
As kind is now hard-coded to -1, there is room for code clean-ups.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Corentin Labbe <corentin.labbe@geomatys.fr>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Juerg Haefliger <juergh@gmail.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Acked-by: "Hans J. Koch" <hjk@linutronix.de>
Cc: Rudolf Marek <r.marek@assembler.cz>
Diffstat (limited to 'drivers/hwmon/lm92.c')
| -rw-r--r-- | drivers/hwmon/lm92.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/drivers/hwmon/lm92.c b/drivers/hwmon/lm92.c index b2e00c5a7ee..47ac698709d 100644 --- a/drivers/hwmon/lm92.c +++ b/drivers/hwmon/lm92.c @@ -323,31 +323,22 @@ static int lm92_detect(struct i2c_client *new_client, int kind, struct i2c_board_info *info) { struct i2c_adapter *adapter = new_client->adapter; + u8 config; + u16 man_id; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) return -ENODEV; - /* A negative kind means that the driver was loaded with no force - parameter (default), so we must identify the chip. */ - if (kind < 0) { - u8 config = i2c_smbus_read_byte_data(new_client, - LM92_REG_CONFIG); - u16 man_id = i2c_smbus_read_word_data(new_client, - LM92_REG_MAN_ID); - - if ((config & 0xe0) == 0x00 - && man_id == 0x0180) { - pr_info("lm92: Found National Semiconductor LM92 chip\n"); - kind = lm92; - } else - if (max6635_check(new_client)) { - pr_info("lm92: Found Maxim MAX6635 chip\n"); - kind = lm92; /* No separate prefix */ - } - else - return -ENODEV; - } + config = i2c_smbus_read_byte_data(new_client, LM92_REG_CONFIG); + man_id = i2c_smbus_read_word_data(new_client, LM92_REG_MAN_ID); + + if ((config & 0xe0) == 0x00 && man_id == 0x0180) + pr_info("lm92: Found National Semiconductor LM92 chip\n"); + else if (max6635_check(new_client)) + pr_info("lm92: Found Maxim MAX6635 chip\n"); + else + return -ENODEV; strlcpy(info->type, "lm92", I2C_NAME_SIZE); |