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The lowest 3 bits are ignored, and the chip decodes all 8 addresses,
not only the 2 it needs.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Fans can be hotplugged, so we should create sysfs file even for fans
which are disabled at driver load time.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Add support for the Fintek F71872F/FG Super-I/O chip. It is basically the
same as the Fintek F71805F/FG as far as hardware monitoring is concerned,
with two additional internal voltages monitored (VSB and battery), and 6
VID inputs (not yet supported.)
To make things a bit more confusing, two of the voltage input pins (in4
and in8) can be used for other functions. The driver reads the pin
configuration from the Super-I/O configuration space to decide whether
it must create interface files for these inputs or not.
Many thanks to Nikolay Derkach for testing the early iterations of this
code and reporting bugs.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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In "speed mode", the user specifies a target fan speed (in RPM) and the
chip automatically adjusts the PWM duty cycle (or DC output level) to
reach this target.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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In DC mode, the pwmN_freq files are not created.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Different frequencies can give better results depending on the exact fan
model used.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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pwmN files are writable only in manual fan speed control mode.
In automatic fan speed control modes, they are read-only and
report the duty cycle chosen by the chip.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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So far we were only extracting the fan skip bit from the
fan control registers, but we'll soon need more bits so
better store the whole register values.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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hwmon: Fix unchecked return status, batch 4
Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().
Note: f71805f actually checked the status from device_create_file
already. However it did not remove the files on device destruction.
It was also an opportunity to use sysfs_create/remove_group instead
of hand-made loops. This makes the changes much more important but
I think the result is worth it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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hwmon: Add individual alarm files to 4 drivers
Add individual sysfs files for all f71805f, lm63, lm83 and lm90 alarm
and fault conditions. This is a requirement for the planned
chip-independent libsensors. Almost all other hwmon drivers will need
the same improvement.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The F71805F I/O resource structure needs not be a global variable,
as the platform core allocs its own copy of it anyway.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Convert the new f71805f hardware monitoring driver to use mutexes
instead of semaphores.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Convert the f71805f driver to use arrays of attributes. This shrinks the
compiled module from 12.0 kB to 9.6 kB. We certainly should do the same
for as many hardware monitoring drivers as possible.
This, together with a nice chip design by Fintek, makes this driver
very small, both in terms of number of lines of code and memory
consumption.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This is my f71805f hardware monitoring driver ported from lm_sensors
to Linux 2.6. This new driver differs from the other hardware monitoring
drivers in that it is implemented as a platform driver. This might not
be optimal yet (we would probably need a generic infrastructure and bus
type for Super-I/O logical devices) but it is certainly much better than
the i2c-isa solution.
Note that this driver requires lm_sensors CVS. I hope to get it
released as 2.10.0 soon.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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