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authorBen Hutchings <bhutchings@solarflare.com>2008-10-17 17:51:12 +0200
committerJean Delvare <khali@mahadeva.delvare>2008-10-17 17:51:12 +0200
commit47064d645bc55863c7887a7c96cde39c9a37ee5f (patch)
tree812e5badc94040e6001d3ca76bce97a3906caa60 /Documentation
parentd2cac802feae6f0c246a9251eefc482bf5ec0f0f (diff)
downloadlinux-linaro-stable-47064d645bc55863c7887a7c96cde39c9a37ee5f.tar.gz
hwmon: (lm87) Add support for configuration through platform_data
The lm87 driver normally assumes that firmware configured the chip correctly. Since this is not always the case, alllow platform code to set the channel register value via platform_data. All other configuration registers can be changed after driver initialisation. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/hwmon/lm879
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/hwmon/lm87 b/Documentation/hwmon/lm87
index ec27aa1b94cb..6b47b67fd968 100644
--- a/Documentation/hwmon/lm87
+++ b/Documentation/hwmon/lm87
@@ -65,11 +65,10 @@ The LM87 has four pins which can serve one of two possible functions,
depending on the hardware configuration.
Some functions share pins, so not all functions are available at the same
-time. Which are depends on the hardware setup. This driver assumes that
-the BIOS configured the chip correctly. In that respect, it differs from
-the original driver (from lm_sensors for Linux 2.4), which would force the
-LM87 to an arbitrary, compile-time chosen mode, regardless of the actual
-chipset wiring.
+time. Which are depends on the hardware setup. This driver normally
+assumes that firmware configured the chip correctly. Where this is not
+the case, platform code must set the I2C client's platform_data to point
+to a u8 value to be written to the channel register.
For reference, here is the list of exclusive functions:
- in0+in5 (default) or temp3