linux: backport support for thermal sensor lm75b

It's included in generic lm75 driver.
This commit is contained in:
Alexander Couzens 2015-05-07 19:07:53 +02:00
parent 22bd48f95c
commit 745887a828
1 changed files with 64 additions and 0 deletions

View File

@ -0,0 +1,64 @@
From 799fc6021430243592ea8390aa4865713a12fd5f Mon Sep 17 00:00:00 2001
From: Michael Thalmeier <michael.thalmeier@hale.at>
Date: Tue, 18 Nov 2014 17:08:04 +0100
Subject: [PATCH] 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>
---
Documentation/hwmon/lm75 | 5 +++++
drivers/hwmon/lm75.c | 6 ++++++
2 files changed, 11 insertions(+)
diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index c6a5ff1..67691a0a 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 d16dbb33a..f58439b 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, },
--
2.3.5