diff options
| author | Jean Delvare <khali@linux-fr.org> | 2010-10-28 20:31:44 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@endymion.delvare> | 2010-10-28 20:31:44 +0200 |
| commit | c4f99a2b8fb4c564865f0037a2b7be690d4409f3 (patch) | |
| tree | 3b6b7f2261be322412f9dd9eb0df6e3fed7f552c /drivers/hwmon/lm90.c | |
| parent | 0c01b644f77a3df892a48a59901997469aeab0a7 (diff) | |
hwmon: (lm90) Add support for the W83L771W/G
I was wondering if that chip ever existed publicly... Apparently yes,
so add support for it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Alexander Stein <alexander.stein@informatik.tu-chemnitz.de>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'drivers/hwmon/lm90.c')
| -rw-r--r-- | drivers/hwmon/lm90.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c index f9e76c757de8..812781c655a7 100644 --- a/drivers/hwmon/lm90.c +++ b/drivers/hwmon/lm90.c @@ -88,8 +88,8 @@ * Addresses to scan * Address is fully defined internally and cannot be changed except for * MAX6659, MAX6680 and MAX6681. - * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, MAX6649, MAX6657 - * and MAX6658 have address 0x4c. + * LM86, LM89, LM90, LM99, ADM1032, ADM1032-1, ADT7461, MAX6649, MAX6657, + * MAX6658 and W83L771 have address 0x4c. * ADM1032-2, ADT7461-2, LM89-1, LM99-1 and MAX6646 have address 0x4d. * MAX6647 has address 0x4e. * MAX6659 can have address 0x4c, 0x4d or 0x4e. @@ -1237,10 +1237,23 @@ static int lm90_detect(struct i2c_client *new_client, } else if (address == 0x4C && man_id == 0x5C) { /* Winbond/Nuvoton */ - if ((chip_id & 0xFE) == 0x10 /* W83L771AWG/ASG */ - && (reg_config1 & 0x2A) == 0x00 - && reg_convrate <= 0x08) { - name = "w83l771"; + int reg_config2; + + reg_config2 = i2c_smbus_read_byte_data(new_client, + LM90_REG_R_CONFIG2); + if (reg_config2 < 0) + return -ENODEV; + + if ((reg_config1 & 0x2A) == 0x00 + && (reg_config2 & 0xF8) == 0x00) { + if (chip_id == 0x01 /* W83L771W/G */ + && reg_convrate <= 0x09) { + name = "w83l771"; + } else + if ((chip_id & 0xFE) == 0x10 /* W83L771AWG/ASG */ + && reg_convrate <= 0x08) { + name = "w83l771"; + } } } |