diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2008-10-17 11:51:12 -0400 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-10-17 11:51:12 -0400 |
| commit | 47064d645bc55863c7887a7c96cde39c9a37ee5f (patch) | |
| tree | 812e5badc94040e6001d3ca76bce97a3906caa60 /Documentation/hwmon | |
| parent | d2cac802feae6f0c246a9251eefc482bf5ec0f0f (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/lm87 | 9 |
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, | |||
| 65 | depending on the hardware configuration. | 65 | depending on the hardware configuration. |
| 66 | 66 | ||
| 67 | Some functions share pins, so not all functions are available at the same | 67 | Some functions share pins, so not all functions are available at the same |
| 68 | time. Which are depends on the hardware setup. This driver assumes that | 68 | time. Which are depends on the hardware setup. This driver normally |
| 69 | the BIOS configured the chip correctly. In that respect, it differs from | 69 | assumes that firmware configured the chip correctly. Where this is not |
| 70 | the original driver (from lm_sensors for Linux 2.4), which would force the | 70 | the case, platform code must set the I2C client's platform_data to point |
| 71 | LM87 to an arbitrary, compile-time chosen mode, regardless of the actual | 71 | to a u8 value to be written to the channel register. |
| 72 | chipset wiring. | ||
| 73 | 72 | ||
| 74 | For reference, here is the list of exclusive functions: | 73 | For reference, here is the list of exclusive functions: |
| 75 | - in0+in5 (default) or temp3 | 74 | - in0+in5 (default) or temp3 |