[PATCH] hwmon: (lm75) Add support for the NXP LM75B

From: Michael Thalmeier
Date: Thu Nov 06 2014 - 09:10:11 EST


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

Signed-off-by: Michael Thalmeier <michael.thalmeier@xxxxxxx>
---
Documentation/hwmon/lm75 | 6 ++++++
drivers/hwmon/lm75.c | 6 ++++++
2 files changed, 12 insertions(+)

diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index c6a5ff1..62e216a 100644
--- a/Documentation/hwmon/lm75
+++ b/Documentation/hwmon/lm75
@@ -53,6 +53,12 @@ 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@xxxxxx>

diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index d16dbb33a..7ec5ccd 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,
@@ -271,6 +272,10 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
data->resolution = 12;
data->sample_time = HZ / 2;
break;
+ case lm75b:
+ data->resolution = 11;
+ data->sample_time = HZ / 4;
+ break;
}

/* configure as specified */
@@ -334,6 +339,7 @@ static const struct i2c_device_id lm75_ids[] = {
{ "tmp175", tmp175, },
{ "tmp275", tmp275, },
{ "tmp75", tmp75, },
+ { "lm75b", lm75b, },
{ /* LIST END */ }
};
MODULE_DEVICE_TABLE(i2c, lm75_ids);
--
1.9.3

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