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authorAndrew F. Davis <afd@ti.com>2016-06-08 12:00:54 -0500
committerGuenter Roeck <linux@roeck-us.net>2016-06-27 18:58:03 -0700
commitc0a68601804dcb4ee8a141e42e1e6893b6b0610c (patch)
tree7ae376294c5bdd533986f2e3002ac49b79008253 /drivers/hwmon
parent7c84f7f80d6fcea36246b793d06c3555ca53ddcd (diff)
hwmon: (tmp401) Add support for TI TMP461
Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/Kconfig2
-rw-r--r--drivers/hwmon/tmp401.c35
2 files changed, 30 insertions, 7 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index e0be99a4615c..be63b140a976 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1572,7 +1572,7 @@ config SENSORS_TMP401
depends on I2C
help
If you say yes here you get support for Texas Instruments TMP401,
- TMP411, TMP431, TMP432 and TMP435 temperature sensor chips.
+ TMP411, TMP431, TMP432, TMP435, and TMP461 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 ccf4cffe0ee1..eeeed2c7d081 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -47,7 +47,7 @@
static const unsigned short normal_i2c[] = { 0x48, 0x49, 0x4a, 0x4c, 0x4d,
0x4e, 0x4f, I2C_CLIENT_END };
-enum chips { tmp401, tmp411, tmp431, tmp432, tmp435 };
+enum chips { tmp401, tmp411, tmp431, tmp432, tmp435, tmp461 };
/*
* The TMP401 registers, note some registers have different addresses for
@@ -62,31 +62,34 @@ enum chips { tmp401, tmp411, tmp431, tmp432, tmp435 };
#define TMP401_MANUFACTURER_ID_REG 0xFE
#define TMP401_DEVICE_ID_REG 0xFF
-static const u8 TMP401_TEMP_MSB_READ[6][2] = {
+static const u8 TMP401_TEMP_MSB_READ[7][2] = {
{ 0x00, 0x01 }, /* temp */
{ 0x06, 0x08 }, /* low limit */
{ 0x05, 0x07 }, /* high limit */
{ 0x20, 0x19 }, /* therm (crit) limit */
{ 0x30, 0x34 }, /* lowest */
{ 0x32, 0x36 }, /* highest */
+ { 0, 0x11 }, /* offset */
};
-static const u8 TMP401_TEMP_MSB_WRITE[6][2] = {
+static const u8 TMP401_TEMP_MSB_WRITE[7][2] = {
{ 0, 0 }, /* temp (unused) */
{ 0x0C, 0x0E }, /* low limit */
{ 0x0B, 0x0D }, /* high limit */
{ 0x20, 0x19 }, /* therm (crit) limit */
{ 0x30, 0x34 }, /* lowest */
{ 0x32, 0x36 }, /* highest */
+ { 0, 0x11 }, /* offset */
};
-static const u8 TMP401_TEMP_LSB[6][2] = {
+static const u8 TMP401_TEMP_LSB[7][2] = {
{ 0x15, 0x10 }, /* temp */
{ 0x17, 0x14 }, /* low limit */
{ 0x16, 0x13 }, /* high limit */
{ 0, 0 }, /* therm (crit) limit (unused) */
{ 0x31, 0x35 }, /* lowest */
{ 0x33, 0x37 }, /* highest */
+ { 0, 0x12 }, /* offset */
};
static const u8 TMP432_TEMP_MSB_READ[4][3] = {
@@ -149,6 +152,7 @@ static const struct i2c_device_id tmp401_id[] = {
{ "tmp431", tmp431 },
{ "tmp432", tmp432 },
{ "tmp435", tmp435 },
+ { "tmp461", tmp461 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tmp401_id);
@@ -170,7 +174,7 @@ struct tmp401_data {
/* register values */
u8 status[4];
u8 config;
- u16 temp[6][3];
+ u16 temp[7][3];
u8 temp_crit_hyst;
};
@@ -613,6 +617,22 @@ static const struct attribute_group tmp432_group = {
};
/*
+ * Additional features of the TMP461 chip.
+ * The TMP461 temperature offset for the remote channel.
+ */
+static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IWUSR | S_IRUGO, show_temp,
+ store_temp, 6, 1);
+
+static struct attribute *tmp461_attributes[] = {
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group tmp461_group = {
+ .attrs = tmp461_attributes,
+};
+
+/*
* Begin non sysfs callback code (aka Real code)
*/
@@ -714,7 +734,7 @@ static int tmp401_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
static const char * const names[] = {
- "TMP401", "TMP411", "TMP431", "TMP432", "TMP435"
+ "TMP401", "TMP411", "TMP431", "TMP432", "TMP435", "TMP461"
};
struct device *dev = &client->dev;
struct device *hwmon_dev;
@@ -745,6 +765,9 @@ static int tmp401_probe(struct i2c_client *client,
if (data->kind == tmp432)
data->groups[groups++] = &tmp432_group;
+ if (data->kind == tmp461)
+ data->groups[groups++] = &tmp461_group;
+
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, data->groups);
if (IS_ERR(hwmon_dev))