hwmon: (lm75) Add support for the NXP LM75B

It is basically a faster lm75 with improved (11 bit) resolution.

Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

2 files changed, 11 insertions, 0 deletions

diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index c6a5ff1b4641..67691a0aa41d 100644
--- a/Documentation/hwmon/lm75
+++ b/Documentation/hwmon/lm75
@@ -53,6 +53,11 @@ Supported chips:
                http://www.ti.com/product/tmp75
                http://www.ti.com/product/tmp175
                http://www.ti.com/product/tmp275
+  * NXP LM75B
+    Prefix: 'lm75b'
+    Addresses scanned: none
+    Datasheet: Publicly available at the NXP website
+               http://www.nxp.com/documents/data_sheet/LM75B.pdf
 
 Author: Frodo Looijaard <frodol@dds.nl>
 
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index d16dbb33a531..f58439b817b5 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -44,6 +44,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
         g751,
         lm75,
         lm75a,
+        lm75b,
         max6625,
         max6626,
         mcp980x,
@@ -233,6 +234,10 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
                 data->resolution = 9;
                 data->sample_time = HZ / 2;
                 break;
+        case lm75b:
+                data->resolution = 11;
+                data->sample_time = HZ / 4;
+                break;
         case max6625:
                 data->resolution = 9;
                 data->sample_time = HZ / 4;
@@ -322,6 +327,7 @@ static const struct i2c_device_id lm75_ids[] = {
         { "g751", g751, },
         { "lm75", lm75, },
         { "lm75a", lm75a, },
+        { "lm75b", lm75b, },
         { "max6625", max6625, },
         { "max6626", max6626, },
         { "mcp980x", mcp980x, },