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authorGuenter Roeck <linux@roeck-us.net>2013-03-15 12:55:08 -0700
committerGuenter Roeck <linux@roeck-us.net>2013-04-07 21:16:42 -0700
commita1fac92b8b2c439678424f7660f066341607a82a (patch)
tree672ef38fd52db6e1d65592183cdd4aef3fbd52ef /drivers/hwmon
parent58615a94f6a190f2fb9f9a99f1894d161c4b85b9 (diff)
downloadlinux-a1fac92b8b2c439678424f7660f066341607a82a.tar.gz
hwmon: (tmp401) Add support for TMP431
TMP431 is compatible to TMP401. Also add support for additional I2C addresses supported by TMP411B and TMP411C. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/Kconfig4
-rw-r--r--drivers/hwmon/tmp401.c15
2 files changed, 14 insertions, 5 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index a0f1d6a406e..43ed3aef21c 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -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.
diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index 97bf34494d8..f4290ec7d9e 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -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);