The smsc47m1 driver uses a mutex to protect the accesses to the
hardware registers. It really doesn't need any protection, as the
register space is flat. Get rid of that mutex for a smaller and
faster driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
The new SMSC LPC47M292 Super-I/O chip is a bit different from the
previous ones, it supports a 3rd fan, but unfortunately the pin
configuration registers are different.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
My understanding of the resource management in the Linux 2.6 device
driver model is that the devices should declare their resources, and
then when a driver attaches to a device, it should request the
resources it will be using, so as to mark them busy. This is how the
PCI and PNP subsystems work, you can clearly see the two levels of
resources (declaration and request) in /proc/ioports for these
devices.
So I believe that our platform hardware monitoring drivers should
follow the same logic. At the moment, we only declare the resources
but we do not request them. This patch adds the I/O region request
and release calls.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Juerg Haefliger <juergh@gmail.com>
The new SMSC LPC47M292 Super-I/O chip includes a hardware monitoring
block which is compatible with those of the LPC47M192.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Hartmut Rick <linux@rick.claranet.de>
for consistency with other Open Firmware interfaces (and Sparc).
This is just a straight replacement.
This leaves the compatibility define in place.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
These are all the remaining instances of get_property. Simple rename of
get_property to of_get_property.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
On ia64, kernel headers define REGION_OFFSET so we can't use that.
Reported by Andrew Morton.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Users have been complaining about the w83627ehf driver flooding their logs
with debug messages like:
w83627ehf 9191-0a10: Increasing fan 4 clock divider from 64 to 128
or:
w83627ehf 9191-0290: Increasing fan 4 clock divider from 4 to 8
The reason is that we failed to actually write the LSB of the encoded clock
divider value for that fan, causing the next read to report the same old value
again and again.
Additionally, the fan number was improperly reported, making the bug harder to
find.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
We need vid_which_vrm and vid_from_reg in the w83793 module.
Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The configuration index port of the vt1211 can be accessed at two
different addresses 0x2e or 0x4e, depending on pin strappings. This
patch adds support to scan both addresses during module
initialization.
Signed-off-by: Juerg Haefliger <juergh@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
I think I introduced a potential race condition bug with commit
51c997d80e. I didn't realize it
back then, but platform_device_put and platform_device_release
both appear to free the platform data associated with the device.
This makes an explicit kfree redundant at best, and maybe even
racy, as it might occur while someone still holds a reference
to the platform device.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Fix an unused return value warning for the abituguru driver.
Also make sure the sysfs files are created before we register with
the hwmon class, and delete the sysfs files on driver removal.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Subsystem infrastructure should normally register with "subsys_initcall",
so that it's available to drivers that may need to initialize early.
This patch updates "hwmon" to do so. It's common for embedded systems to
have multifunction chips with hardware monitoring interfaces, and to have
those chips be used during system bringup ... before a normal "module_init"
would kick, or maybe just linked so they'd init before hwmon.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Many hardware monitoring drivers use two different mutexes, one to
protect their per-device data structure, and one to protect the
access to the device registers. These mutexes are essentially
redundant, as the drivers are transfering values between the device
registers and the data cache, so they almost always end up holding
both mutexes at the same time. Using a single mutex will make the
code more simple and faster.
I am changing only two of the affected drivers here, the authors
of the other affected drivers are welcome to submit similar patches
if they want.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Let the user select the base PWM frequency when using the it87
hardware monitoring driver. Different frequencies can give better
control on some fans.
Also update the documentation to mention the PWM frequency control
files, with misc cleanups to the PWM section.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Remove a superfluous initialization from the vt8231 hwmon driver; the
i2c core does this, and the source field will be vanishing soon.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Ignore the VID readings when the motherboard has not designed
the function.
Signed-off-by: Gong Jun <jgong@winbond.com>
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Catch the cases when alternative pins are used to route the
fan9-12 input.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Gong Jun <jgong@winbond.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Ignore the temperature readings when its channel is disabled,
ignore AMDSI readings.
Signed-off-by: Gong Jun <jgong@winbond.com>
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Fix the driver to match the information in datasheet 1.0. AMD
SI interface is marked as reserved, computing formula for 5VDD
and 5VSB is updated.
Signed-off-by: Gong Jun <jgong@winbond.com>
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This driver adds support for the Apple Motion Sensor (AMS) as found in 2005
revisions of Apple PowerBooks and iBooks. It implements both the PMU and
I2C variants. The I2C driver and mouse emulation is based on code by
Stelian Pop, while the PMU driver has been developped by Michael Hanselmann.
HD parking support will be added later.
Various people contributed fixes to this driver, including
Aristeu Sergio Rozanski Filho and Jean Delvare.
Signed-off-by: Stelian Pop <stelian@popies.net>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Robert Love <rml@novell.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Add support for the W83793 hardware monitoring chip. This driver
was originally contributed by Yuan Mu of Winbond Electronics Corp.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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>
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>
This is a new hardware monitoring driver for the National Semiconductor
PC87427 Super-I/O chip. It only supports fan speed monitoring for now,
while the chip can do much more.
Thanks to Amir Habibi at Candelis for setting up a test system, and to
Michael Kress for testing several iterations of this driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This interface was useless as the LPC ISA-like interface is always
available, is faster, and is more reliable. This cuts the driver
size by some 20%.
This change is also required to later convert the it87 driver to a
platform driver, so that we can get rid of i2c-isa in a near future.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Remove the strange DMI for the R52 (1846AQG)
and add a note to update to latest BIOS in the Kconfig
and source code.
Signed-off-by: Stephan Berberig <s.berberig@arcor.de>
Signed-off-by: Robert Love <rlove@rlove.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Move the DMI detection data from .text to .data. We really don't want
that amount of data on the stack.
Also refactor the macros used to generate the detection data, the
vendor becomes a parameter.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Robert Love <rlove@rlove.org>
pc87360 currently hardcodes vrm = 90 (2.4 vintage). Update it to use
newer code in hwmon-vid which reads cpuid to determine the correct vid.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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>
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>
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>
Fix debug messages in w83781d at detection time. We can't use dev_dbg()
on an i2c client's device before calling i2c_attach_client() on that
client.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Let the w83781d and lm78 hardware monitoring drivers load even when
no chip was detected at the ISA address. There can still be supported
chips connected to an I2C bus or SMBus.
This fixes bug #7293.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the detection of fan5 and preserve the bit between the
register writes, because the bit is write only.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update the documentation for the k8temp driver.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The SMSC LPC47M112 Super-I/O chip appears to be compatible with the
LPC47M10x and LPC47M13x as far as hardware monitoring is concerned.
The device ID is even the same, so it's really only a documentation
update.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace a bouncing email that I cannot recover from Mr Google.
Signed-off-by: Grant Coady <gcoady.lk@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Replace all unchecked calls to device_create_file with a single group
declaration, and one call to sysfs_create_group, and check that one
return status. Also remove the files on device detach.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off by: Charles Spirakis <bezaur@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Support hdaps on Lenovo ThinkPad T60. It was tested with pivot utility
from http://www.kernel.org/pub/linux/kernel/people/rml/hdaps and it seems
to be OK.
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Robert Love <rml@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hwmon: Remove Yuan Mu's address
Yuan Mu no longer works at Winbond.
I wish to publicly thank Yuan for his help with Winbond hardware
monitoring chips support during the past 10 months.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: Fix unchecked return status, SMSC chips
Fix up 2 more hwmon drivers so that they no longer ignore return
status from device_create_file().
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: Fix unchecked return status, batch 6
Fix up 5 more hwmon drivers so that they no longer ignore return status
from device_create_file().
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
w83792d: Fix unchecked return status
Fix the w83792d driver. Add error checking to device_create_file
and also care to destroy the files upon exit.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
w83l785ts: Fix unchecked return status
Fix the w83l785ts driver. Add error checking to device_create_file
and also care to destroy the files upon exit.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
w83781d: Fix unchecked return status
Add 2 attr-file groups (for base and model-specific attrs respectively),
create the base group with single call to sysfs_create_group,
check the return code on individual calls to device_create_file for each
of the model-specific attr-files.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
vt8231: Fix unchecked return status
Check the return status from device_create_file() and also use
the newer and cleaner sysfs creation functions.
Signed-off-by: Roger Lucas <roger@planbit.co.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: Fix unchecked return status, batch 5
Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
hwmon: Fix unchecked return status, batch 3
Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: Fix unchecked return status, batch 2
Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
w83627ehf: Fix unchecked return status
Fix: check return value from device_create_file()
Fix: call device_remove_file() on error and module unload
Fix: call hwmon_device_register() after device_create_file() to eliminate race
Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
pc87360: Check for error on sysfs files creation
Use sysfs_create_group() for 2 sensor-types which are chip-model
invariant, i.e. all-or-nothing attribute groups.
Other 2 groups vary too much due to configuration, etc, so we keep the
loops of device_create_file(), but now check their returns.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
pc87360: Delete sysfs files on device deletion
Add 4 explicit attribute groups for the 5 sensor types:
voltage (in), therm, temp, and fan & pwm (together in one group).
Use sysfs_remove_group() to drop them, but keeps the existing
startup code, which calls device_create_file in loops.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
pc87360: Move some code around
Moves code for get-set-decl tuples for 3 items: cpu0_vid, vrm, alarms_in
up, to just after the get-set-decl tuple for voltages.
These items are already 'activated' together with the rest of the
voltage attributes, so the move tightens the grouping that's made
explicit in next patch.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: Fix unchecked return status, batch 1
Fix up some hwmon drivers so that they no longer ignore return status
from device_create_file().
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hwmon: New driver for the VIA VT1211
This is a new driver for the VIA VT1211 Super-IO chip. It is a rewrite
of the existing vt1211 driver (by Mark D. Studebaker and Lars Ekman)
which has been around for a while but never made it into the main
kernel tree.
It is implemented as a platform driver and therefore requires
lm_sensors 2.10.1 to function properly.
Signed-off-by: Juerg Haefliger <juergh@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
w83791d: Documentation update
The alarm bits and the beep enable bits are in different positions in
the hardware. Document the problem and leave it to the user-space code
to handle the situation. When this driver is updated to the standardized
sysfs alarm/beep methodology, this won't be a problem.
This is a documentation only change.
Signed-off by: Charles Spirakis <bezaur@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
hwmon: Make a dozen drivers no more experimental
Remove the EXPERIMENTAL tag from a dozen hardware monitoring drivers.
They are in the tree for quite a long time, so we would know by now if
they were causing trouble.
Also make it clearer that the VT8231 is a VIA chip.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch contains rudimentary suspend / resume support for the uguru,
this protects the uguru and the driver against suspend / resume cycles,
so there is no reason to unload the driver in your suspend / resume
scripts.
Only include suspend / resume functions when CONFIG_PM is set.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Let the k8temp driver load automatically.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the temperature sensor(s) found in AMD K8 CPUs.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Copyright update
I think my contributions to the it87 driver over the past two
years qualify me as a co-author of this driver.
Also drop old comments of dubious usefulness.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Overwrite broken default limits
Some IT8716F chips where seen with unreasonable defaults for low
voltage and high temperature limits. Overwrite them with sane defaults
so as to not generate meaningless alarms.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Add support for the IT8718F
The IT8718F is a Super-I/O chip with integrated hardware monitoring
functions. It is very similar to the IT8716F, so adding support to the
it87 driver was pretty straightforward. The most significant difference
is that the IT8718F has up to 8 VID pins, instead of 6 for the older
chips.
For the IT8718F, the VID value can only be read from Super-I/O space.
Userspace support is already in lm_sensors SVN (to be soon released
as 2.10.1.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Cleanup set_fan_div
We only change one fan clock divider at a time, so there is only one
fan min which needs to be saved and restored.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Prevent overflow on fan clock divider write
The highest possible clock divider for fan1 and fan2 is 128.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: No sysfs files for disabled fans
Only create the fan attributes for enabled fan tachometers. Some
motherboards have a nice BIOS which only enables the fan inputs which
are wired to a fan header on the board. This makes the configuration
easier for the user.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
it87: Add support for the IT8716F
The IT8716F is a Super-I/O chip with integrated hardware monitoring
functions. It is very similar to the IT8712F, so adding support to the
it87 driver was pretty straightforward. The most significant change here
is that the IT8716F has 16-bit fan speed counters, so the user no more
needs to tweak the fan clock dividers to get the best readings.
Userspace support is already in lm_sensors SVN (to be soon released
as 2.10.1.)
Thanks to Stian Oksavik, Olivier Nicolas, Prakash Punnoor and
Juergen Kilb for testing the early versions of this patch.
Thanks also to ITE for providing datasheets and answering my questions.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
smsc47m1: dev_warn fix
We can't use dev_warn on an i2c client before it is attached.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
vid_to_reg() can return -1 and char can be unsigned.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds long-awaited support for automatic fan modes. Based on
the work of Yuan Mu from Winbond, I finished the support with the great
help of David Hubbard.
Signed-off-by: Yuan Mu <Ymu@Winbond.com.tw>
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-isa: Restore driver owner
Commit 2b48716d1d back in January
2006 was a bit overzealous. It removed .owner from all i2c drivers,
including i2c-isa ones, while they still need it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch contains 2 sets of fixes for the abituguru:
1) Much improved timeout handling, drasticly reducing the amount of
timeout errors on some motherboards
2) Fix the exit paths in the bank1 sensor type detect code to always
restore the original settings even on an error. Without this our
special test settings could remain seriously confusing the system
BIOS's setup menu.
Both are very much related and are must haves, to avoid messing up the
uguru CMOS settings.
Detailed changes:
- Much improved timeout / wait for status handling. Many thanks to Sunil
Kumar, for all his testing, ideas and patches! The code now first busy
waits, polling the uguru for the expected status as this usually
succeeds pretty quickly (within 90 reads). To avoid unnecessary CPU burn
in timeout conditions, the amount of busy waiting has been halved from
previous versions (120 tries instead of 250). This is not a problem,
because this version goes to sleep after 120 attemps for 1 jiffy and
then tries again, it does this sleep and try again 5 times before
finally giving up. This (almost?) completly removes the timeout errors
some people have seen regulary. Apparently some older uguru versions
sometimes are distracted for a (relatively) long time. This solves this.
- These timeout errors not only occur in the sending address part of
reading the uguru but also in the wait for read state, so errors in
this state are now handled as retryable just like send address state
errors and are only logged and reported to userspace if 3 executive
tries fail.
- Fix a very nasty bug in the bank1 sensor type detection code, where it
would not restore the original settings in any of the error paths!
- Since not successfully restoring the original settings can seriously
confuse the system BIOS (hang when entering the relevant setup menu),
we now try restoring them 3 times before giving up.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Now that the abituguru driver is seeing some more widespread testing
it has turned out that one the first generation of Abit uGuru
motherboards, with uGuru revision 1, the autodetect bank1 sensor type
code doesn't (always) work. This patch adds a module param to override
the autodetect, and it adds validity checks for the value of the 2
other autodetection override module params. An example of howto use
the new param can be found here:
http://lm-sensors.org/wiki/Configurations/Abit/AN7
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for two new VID codes, supporting Intel mobile Core
processors and new Conroe based platforms.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This driver implements support for the National Semiconductor LM70
temperature sensor.
The LM70 temperature sensor chip supports a single temperature sensor.
It communicates with a host processor (or microcontroller) via an
SPI/Microwire Bus interface.
Communication with the LM70 is simple: when the temperature is to be sensed,
the driver accesses the LM70 using SPI communication: 16 SCLK cycles
comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's
complement digital temperature (sent via the SIO line), is available in the
driver for interpretation. This driver makes use of the kernel's in-core
SPI support.
Signed-off-by: Kaiwan N Billimoria <kaiwan@designergraphix.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hardware monitoring chips don't have to be on the I2C bus.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
One of my testers had a problem where the driver only saw 2 of the 4 fan
sensors his uGuru has, this fixes this.
-accept 0x40 (bit 6) being high as a valid fan sensor setting for all fans
not just fan 1, I have a feeling this bit indicates whether or not a fan is
actually connected .
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixes to the Abit uGuru driver as requested in review by Jean Delvare:
- exactly calculate the sysfs_names array length using macro
- use snprintf when generating names to double check that the sysfs_names
array does not overflow.
- use ARRAY_SIZE and / or defines to determine number of loops in for loops
instead of using hardcoded values.
- In abituguru_probe(), refactor the error path leaving a single call to kfree
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
New hardware monitoring driver for the Abit uGuru
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add missing data lock in w83792d driver to avoid unexpected
data change.
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
W83792D use pwm register low 4 bits to store PWM/DC value, bit 7
is used to store fan PWM/DC mode. The store_pwm function did not
convert the pwm input correctly, so it may change the fan mode
when new value is set.
This fix the problem. Change the "index" value of pwm*_mode
and pwm* SENSOR_ATTR to simplify code.
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix a typo in the hdaps driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Robert Love <rml@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Following patch trims the VID value to correct number of bits
for each VRM.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Improve the help text for CONFIG_HWMON to let the users know how they
pick the right hardware monitoring driver(s) for their system.
Also fix a couple typos in the related documentation file and improve
some parts a bit.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the w83791d sensor chip. The w83791d hardware is
somewhere between the w83781d and the w83792d and this driver code
is derived from the code that supports those chips.
Signed-off-by: Charles Spirakis <bezaur@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update the list of systems supported by the hdaps driver:
* Add the "ThinkPad Z60m" entry, reported by Arkadiusz Miskiewicz.
* Add the "ThinkPad H" entry, reported by Frank Gevaerts for some
ThinkPad R52 models (1846AQG).
* Drop the "ThinkPad X41 Tablet" entry, which looks redundant to me.
And a comment update for good measure.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Arkadiusz Miskiewicz <arekm@maven.pl>
Cc: Frank Gevaerts <frank@gevaerts.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
New driver (smsc47m192) which supports voltage and temperature
measurement features of SMSC LPC47M192 and LPC47M997 chips.
Signed-off-by: Hartmut Rick <linux@rick.claranet.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add alarms support for the W83627EHF/EHG hardware monitoring chip.
This is based on an earlier patch from Rudolf Marek.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add the voltage measuring support to W83627EHF. The code is based
on the patch provided by Yuan Mu from Winbond.
Signed-off-by: Yuan Mu <Ymu@winbond.com.tw>
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add LM82 temperature sensor support (similar to the LM83,
but less featureful).
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make the w83792d driver keep quiet when misdetecting a chip. This can
happen, and the user doesn't need to know.
Also renumber the messages, and add one, for consistency.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use ENODEV when the hdaps hardware isn't there, not ENXIO.
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Robert Love <rml@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add support for forthcoming Lenovo-branded machines to the HDAPS driver.
Signed-off-by: Robert Love <rml@novell.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This adds support for my Thinkpad R52, which for some reason is not matched
by the "ThinkPad R52" line.
Signed-off-by: Frank Gevaerts <frank@gevaerts.be>
Cc: Robert Love <rml@novell.com>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This reverts the mutex conversion that was recently done to the hdaps
driver; this coversion was buggy because the hdaps driver started using
this semaphore in IRQ context, which mutexes do not allow. Easiest
solution for now is to just revert the patch (the patch was part of a
bigger GIT commit, 9a61bf6300 but this
only reverts this one file)
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Add required locking around idr_ routines, retry the idr_pre_get/idr_get_new
pair properly, and sprinkle in some likely/unlikely for good measure.
(Lack of idr locking didn't hurt when all callers were I2C clients, as the
i2c-core serialized for us anyway. Now that we have non I2C hwmon drivers,
this is truly necessary.)
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
"register" is a reserved keyword so using it as a parameter name
can confuse some compilers, most notably ICC.
The patch below just renames all occurences to reg which fits the actual
function declarations.
Signed-off-by: Darren Jenkins <darrenrjenkins@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Stop resetting the chip on load by default, so as to preserve the BIOS
initializations. Same was done in the w83627hf driver some times ago
for the same reasons.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use dynamic sysfs callbacks and array of attributes to reduce the
w83627ehf driver size.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the Intel Pentium M series to the hwmon-vid driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the Winbond W83687THF chip to the w83627hf hardware
monitoring driver. This new chip is almost similar to the already
supported W83627THF chip, except for VID and a few other minor
changes.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
convert drivers/hwmon/*.c semaphore use to mutexes.
the conversion was generated via scripts, and the result was validated
automatically via a script as well.
all affected hwmon drivers were build-tested.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Drop 3 useless macros in the w83792d hardware monitoring driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use arrays of attributes in the w83792d driver.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
Convert individual sensors to sensor-attr arrays by each sensor type,
and initialize them in loops instead of long blocks of individual calls.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix an oops on it87 module removal when no supported hardware was
found.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use the real-time status registers of the Winbond W83782D, W83783S and
W83627HF chips, instead of the interrupt status registers. Interrupts
cannot be trusted at least for voltage inputs, as they are two-times
triggers (as opposed to comparator mode, which we want.) The w83627hf
driver was fixed in a similar way some times ago.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The VT8231 low temperature limits are actually hysteresis temperatures
to the high limits.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Roger Lucas <roger@planbit.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Only scan I2C address 0x2d. This is the default address and no IT87xxF
chip was ever seen on I2C at a different address. These chips are
better accessed through their ISA interface anyway.
This fixes bug #5889, although it doesn't address the whole class
of problems. We'd need the ability to blacklist arbitrary I2C addresses
on systems known to contain I2C devices which behave badly when probed.
Plan the I2C interface for removal as well. If nobody complains within
a year, it will confirm my impression that the I2C interface isn't
actually needed by anyone.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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>
Fix negative temperature readings in lm77 driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Michael Renzmann <mrenzmann@otaku42.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds the VIA CENTAUR CPUs to detection table.
Table was updated to treat future Intel x86 CPUs as VRD10.
Stepping field was added, because some VIA CPUs have
different VRM specs across stepping. I changed the vrm type
to u8 because all drivers use u8 anyway.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Simplify the way the w83792d driver handles the extra resolution
bits of voltage input channels.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Yuan Mu <Ymu@winbond.com.tw>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cleanup the w83792d driver a bit:
* Discard unused lock and irrelevant comments inherited from the
w83781d driver.
* Simplify w83792d_{read,write}_value functions.
* Drop useless address test during detection.
* Drop useless bitmasking.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Yuan Mu <Ymu@winbond.com.tw>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Now that i2c_add_driver() doesn't need the module owner to be set by
hand, we can delete it from the drivers. This patch catches all of the
drivers that I found in the current tree (if a driver sets the .owner by
hand, it's not a problem, just not needed.)
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Jean Delvare <khali@linux-fr.org>
We should use the i2c_driver.driver's .name and .owner fields
instead of the i2c_driver's ones.
This patch updates the hwmon drivers.
Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Just about every i2c chip driver sets the I2C_DF_NOTIFY flag, so we
can simply make it the default and drop the flag. If any driver really
doesn't want to be notified when i2c adapters are added, that driver
can simply omit to set .attach_adapter. This approach is also more
robust as it prevents accidental NULL pointer dereferences.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Port the vt8231 hardware monitoring driver from lm_sensors CVS to
Linux 2.6.
Signed-off-by: Roger Lucas <roger@planbit.co.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
