diff options
| author | Matthew Garrett <mjg@redhat.com> | 2010-05-27 19:58:38 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2010-05-27 19:58:38 +0200 |
| commit | 10f2ed31aae11040dfd64cee10c47db79b4b4647 (patch) | |
| tree | bae22e065d19fba90db1f25c976166d742dd086e /drivers | |
| parent | 70dd6beac02f43a5099fcf5fddf68cfee0cbf479 (diff) | |
| download | lwn-10f2ed31aae11040dfd64cee10c47db79b4b4647.tar.gz lwn-10f2ed31aae11040dfd64cee10c47db79b4b4647.zip | |
hwmon: (lm63) Add basic support for LM64
The LM64 appears to be an LM63 with added GPIO lines. Add support for the
hwmon functionality - GPIO can be added at some later stage if someone
has a need for them.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hwmon/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/hwmon/lm63.c | 16 |
2 files changed, 18 insertions, 9 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 6a9ac754ca5d..fa609586c7c9 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -447,13 +447,14 @@ config SENSORS_IT87 will be called it87. config SENSORS_LM63 - tristate "National Semiconductor LM63" + tristate "National Semiconductor LM63 and LM64" depends on I2C help - If you say yes here you get support for the National Semiconductor - LM63 remote diode digital temperature sensor with integrated fan - control. Such chips are found on the Tyan S4882 (Thunder K8QS Pro) - motherboard, among others. + If you say yes here you get support for the National + Semiconductor LM63 and LM64 remote diode digital temperature + sensors with integrated fan control. Such chips are found + on the Tyan S4882 (Thunder K8QS Pro) motherboard, among + others. This driver can also be built as a module. If so, the module will be called lm63. diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c index bf81aff7051d..776aeb3019d2 100644 --- a/drivers/hwmon/lm63.c +++ b/drivers/hwmon/lm63.c @@ -53,7 +53,7 @@ * Address is fully defined internally and cannot be changed. */ -static const unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x18, 0x4c, 0x4e, I2C_CLIENT_END }; /* * The LM63 registers @@ -131,12 +131,15 @@ static struct lm63_data *lm63_update_device(struct device *dev); static int lm63_detect(struct i2c_client *client, struct i2c_board_info *info); static void lm63_init_client(struct i2c_client *client); +enum chips { lm63, lm64 }; + /* * Driver data (common to all clients) */ static const struct i2c_device_id lm63_id[] = { - { "lm63", 0 }, + { "lm63", lm63 }, + { "lm64", lm64 }, { } }; MODULE_DEVICE_TABLE(i2c, lm63_id); @@ -422,6 +425,7 @@ static int lm63_detect(struct i2c_client *new_client, struct i2c_adapter *adapter = new_client->adapter; u8 man_id, chip_id, reg_config1, reg_config2; u8 reg_alert_status, reg_alert_mask; + int address = new_client->addr; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; @@ -439,7 +443,6 @@ static int lm63_detect(struct i2c_client *new_client, LM63_REG_ALERT_MASK); if (man_id != 0x01 /* National Semiconductor */ - || chip_id != 0x41 /* LM63 */ || (reg_config1 & 0x18) != 0x00 || (reg_config2 & 0xF8) != 0x00 || (reg_alert_status & 0x20) != 0x00 @@ -450,7 +453,12 @@ static int lm63_detect(struct i2c_client *new_client, return -ENODEV; } - strlcpy(info->type, "lm63", I2C_NAME_SIZE); + if (chip_id == 0x41 && address == 0x4c) + strlcpy(info->type, "lm63", I2C_NAME_SIZE); + else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e)) + strlcpy(info->type, "lm64", I2C_NAME_SIZE); + else + return -ENODEV; return 0; } |