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authorHans de Goede <hdegoede@redhat.com>2009-12-09 20:36:01 +0100
committerJean Delvare <khali@linux-fr.org>2009-12-09 20:36:01 +0100
commit7669896f499e1bce5cfb38f2685ff583ecdb24dd (patch)
treeac73a6c61327d36518ebbe9625620de974fa878e /Documentation
parentfc16c56e694d361388bae701894fd719dbc0f7eb (diff)
downloadlinux-stericsson-7669896f499e1bce5cfb38f2685ff583ecdb24dd.tar.gz
hwmon: (f71882fg) Add support for the f71889fg (version 2)
This adds support for the Fintek f71889fg to the f71882fg driver, many thanks to Gerd v. Egidy for providing (remote) access to a machine which such an ic. Note that this bit of the patch: - val = SENSORS_LIMIT(val, 0, 255); + + if (data->type == f71889fg) + val = SENSORS_LIMIT(val, -128, 127); + else + val = SENSORS_LIMIT(val, 0, 127); Changes behaviour for already supported models, the new behaviour is correct as the already supported models have bit 7 of the involved registers fixed at 0, so the previous behaviour which allowed setting temp zone limits > 127 was not correct. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/hwmon/f71882fg10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/hwmon/f71882fg b/Documentation/hwmon/f71882fg
index bee4c30bc1e2..a7952c2bd959 100644
--- a/Documentation/hwmon/f71882fg
+++ b/Documentation/hwmon/f71882fg
@@ -14,6 +14,10 @@ Supported chips:
Prefix: 'f71882fg'
Addresses scanned: none, address read from Super I/O config space
Datasheet: Available from the Fintek website
+ * Fintek F71889FG
+ Prefix: 'f71889fg'
+ Addresses scanned: none, address read from Super I/O config space
+ Datasheet: Should become available on the Fintek website soon
* Fintek F8000
Prefix: 'f8000'
Addresses scanned: none, address read from Super I/O config space
@@ -51,6 +55,12 @@ supported. The right one to use depends on external circuitry on the
motherboard, so the driver assumes that the BIOS set the method
properly.
+Note that the lowest numbered temperature zone trip point corresponds to
+to the border between the highest and one but highest temperature zones, and
+vica versa. So the temperature zone trip points 1-4 (or 1-2) go from high temp
+to low temp! This is how things are implemented in the IC, and the driver
+mimicks this.
+
There are 2 modes to specify the speed of the fan, PWM duty cycle (or DC
voltage) mode, where 0-100% duty cycle (0-100% of 12V) is specified. And RPM
mode where the actual RPM of the fan (as measured) is controlled and the speed