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authorBen Hutchings <bhutchings@solarflare.com>2008-10-17 11:51:12 -0400
committerJean Delvare <khali@mahadeva.delvare>2008-10-17 11:51:12 -0400
commit47064d645bc55863c7887a7c96cde39c9a37ee5f (patch)
tree812e5badc94040e6001d3ca76bce97a3906caa60 /Documentation/hwmon
parentd2cac802feae6f0c246a9251eefc482bf5ec0f0f (diff)
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/hwmon')
-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,
65depending on the hardware configuration. 65depending on the hardware configuration.
66 66
67Some functions share pins, so not all functions are available at the same 67Some functions share pins, so not all functions are available at the same
68time. Which are depends on the hardware setup. This driver assumes that 68time. Which are depends on the hardware setup. This driver normally
69the BIOS configured the chip correctly. In that respect, it differs from 69assumes that firmware configured the chip correctly. Where this is not
70the original driver (from lm_sensors for Linux 2.4), which would force the 70the case, platform code must set the I2C client's platform_data to point
71LM87 to an arbitrary, compile-time chosen mode, regardless of the actual 71to a u8 value to be written to the channel register.
72chipset wiring.
73 72
74For reference, here is the list of exclusive functions: 73For reference, here is the list of exclusive functions:
75 - in0+in5 (default) or temp3 74 - in0+in5 (default) or temp3