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hwmon: (tmp401) Add support for TMP431

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TMP431 is compatible to TMP401.

Also add support for additional I2C addresses supported by TMP411B
and TMP411C.

Signed-off-by: Guenter Roeck <[email protected]>
Acked-by: Jean Delvare <[email protected]>
This commit is contained in:
Guenter Roeck 2013-03-15 12:55:08 -07:00
commit a1fac92b8b
3 changed files with 24 additions and 11 deletions
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4
drivers/hwmon/Kconfig
View file

@ -1238,8 +1238,8 @@ config SENSORS_TMP401
tristate "Texas Instruments TMP401 and compatibles"
depends on I2C
help
If you say yes here you get support for Texas Instruments TMP401 and
TMP411 temperature sensor chips.
If you say yes here you get support for Texas Instruments TMP401,
TMP411, and TMP431 temperature sensor chips.
This driver can also be built as a module. If so, the module
will be called tmp401.

15
drivers/hwmon/tmp401.c
View file

@ -40,9 +40,9 @@
#include <linux/sysfs.h>
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END };
static const unsigned short normal_i2c[] = { 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
enum chips { tmp401, tmp411 };
enum chips { tmp401, tmp411, tmp431 };
/*
* The TMP401 registers, note some registers have different addresses for
@ -90,6 +90,7 @@ static const u8 TMP411_TEMP_HIGHEST_LSB[2] = { 0x33, 0x37 };
#define TMP401_MANUFACTURER_ID 0x55
#define TMP401_DEVICE_ID 0x11
#define TMP411_DEVICE_ID 0x12
#define TMP431_DEVICE_ID 0x31
/*
* Driver data (common to all clients)
@ -98,6 +99,7 @@ static const u8 TMP411_TEMP_HIGHEST_LSB[2] = { 0x33, 0x37 };
static const struct i2c_device_id tmp401_id[] = {
{ "tmp401", tmp401 },
{ "tmp411", tmp411 },
{ "tmp431", tmp431 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tmp401_id);
@ -555,11 +557,18 @@ static int tmp401_detect(struct i2c_client *client,
switch (reg) {
case TMP401_DEVICE_ID:
if (client->addr != 0x4c)
return -ENODEV;
kind = tmp401;
break;
case TMP411_DEVICE_ID:
kind = tmp411;
break;
case TMP431_DEVICE_ID:
if (client->addr == 0x4e)
return -ENODEV;
kind = tmp431;
break;
default:
return -ENODEV;
}
@ -603,7 +612,7 @@ static int tmp401_probe(struct i2c_client *client,
{
int i, err = 0;
struct tmp401_data *data;
const char *names[] = { "TMP401", "TMP411" };
const char *names[] = { "TMP401", "TMP411", "TMP431" };
data = devm_kzalloc(&client->dev, sizeof(struct tmp401_data),
GFP_KERNEL);