diff options
Diffstat (limited to 'drivers/hwmon/lm90.c')
| -rw-r--r-- | drivers/hwmon/lm90.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index 7fef2a1194d..7c6a3df36d8 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -1283,8 +1283,19 @@ static int lm90_detect(struct i2c_client *new_client, } } } else - if (man_id == 0xA1) { /* NXP Semiconductor/Philips */ - if (chip_id == 0x00 && address >= 0x48 && address <= 0x4F) { + if (address >= 0x48 && address <= 0x4F + && man_id == 0xA1) { /* NXP Semiconductor/Philips */ + int reg_config2; + + reg_config2 = i2c_smbus_read_byte_data(new_client, + LM90_REG_R_CONFIG2); + if (reg_config2 < 0) + return -ENODEV; + + if (chip_id == 0x00 + && (reg_config1 & 0x2A) == 0x00 + && (reg_config2 & 0xFE) == 0x00 + && reg_convrate <= 0x09) { name = "sa56004"; } } |