This is a note to let you know that I've just added the patch titled
hwmon: (jc42) more helpful documentation
to the 2.6.37-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hwmon-jc42-more-helpful-documentation.patch
and it can be found in the queue-2.6.37 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From d5622f5b6c4671d1588ccc9056705366d4eb312a Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <[email protected]>
Date: Wed, 16 Feb 2011 08:02:08 -0500
Subject: hwmon: (jc42) more helpful documentation
From: Clemens Ladisch <[email protected]>
commit d5622f5b6c4671d1588ccc9056705366d4eb312a upstream.
The documentation lists standard numbers and chip names in excruciating
detail, but that's all it does. To help mere mortals in deciding
whether to enable this driver, mention what this sensor is for and in
which systems it might be found.
Also add a link to the actual JC 42.4 specification.
Signed-off-by: Clemens Ladisch <[email protected]>
Signed-off-by: Guenter Roeck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
Documentation/hwmon/jc42 | 9 +++++++--
drivers/hwmon/Kconfig | 11 ++++++-----
2 files changed, 13 insertions(+), 7 deletions(-)
--- a/Documentation/hwmon/jc42
+++ b/Documentation/hwmon/jc42
@@ -51,7 +51,8 @@ Supported chips:
* JEDEC JC 42.4 compliant temperature sensor chips
Prefix: 'jc42'
Addresses scanned: I2C 0x18 - 0x1f
- Datasheet: -
+ Datasheet:
+ http://www.jedec.org/sites/default/files/docs/4_01_04R19.pdf
Author:
Guenter Roeck <[email protected]>
@@ -60,7 +61,11 @@ Author:
Description
-----------
-This driver implements support for JEDEC JC 42.4 compliant temperature sensors.
+This driver implements support for JEDEC JC 42.4 compliant temperature sensors,
+which are used on many DDR3 memory modules for mobile devices and servers. Some
+systems use the sensor to prevent memory overheating by automatically
throttling
+the memory controller.
+
The driver auto-detects the chips listed above, but can be manually
instantiated
to support other JC 42.4 compliant chips.
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -445,13 +445,14 @@ config SENSORS_JZ4740
called jz4740-hwmon.
config SENSORS_JC42
- tristate "JEDEC JC42.4 compliant temperature sensors"
+ tristate "JEDEC JC42.4 compliant memory module temperature sensors"
depends on I2C
help
- If you say yes here you get support for Jedec JC42.4 compliant
- temperature sensors. Support will include, but not be limited to,
- ADT7408, CAT34TS02,, CAT6095, MAX6604, MCP9805, MCP98242, MCP98243,
- MCP9843, SE97, SE98, STTS424, TSE2002B3, and TS3000B3.
+ If you say yes here, you get support for JEDEC JC42.4 compliant
+ temperature sensors, which are used on many DDR3 memory modules for
+ mobile devices and servers. Support will include, but not be limited
+ to, ADT7408, CAT34TS02, CAT6095, MAX6604, MCP9805, MCP98242, MCP98243,
+ MCP9843, SE97, SE98, STTS424(E), TSE2002B3, and TS3000B3.
This driver can also be built as a module. If so, the module
will be called jc42.
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.37/hwmon-jc42-more-helpful-documentation.patch
queue-2.6.37/hwmon-jc42-fix-type-mismatch.patch
queue-2.6.37/hwmon-k10temp-add-support-for-amd-family-12h-14h-cpus.patch
queue-2.6.37/hwmon-jc42-do-not-allow-writing-to-locked-registers.patch
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