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authorMatthew Garrett <mjg@redhat.com>2010-05-27 19:58:38 +0200
committerJean Delvare <khali@linux-fr.org>2010-05-27 19:58:38 +0200
commit10f2ed31aae11040dfd64cee10c47db79b4b4647 (patch)
treebae22e065d19fba90db1f25c976166d742dd086e /drivers/hwmon/lm63.c
parent70dd6beac02f43a5099fcf5fddf68cfee0cbf479 (diff)
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/hwmon/lm63.c')
-rw-r--r--drivers/hwmon/lm63.c16
1 files changed, 12 insertions, 4 deletions
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;
}