This patch adds a hwmon driver for package level thermal control. The driver
dumps package level thermal information through sysfs interface so that upper
level application (e.g. lm_sensor) can retrive the information.

Instead of having the package level hwmon code in coretemp, I write a seperate
driver pkgtemp because:

First, package level thermal sensors include not only sensors for each core,
but also sensors for uncore, memory controller or other components in the
package. Logically it will be clear to have a seperate hwmon driver for package
level hwmon to monitor wider range of sensors in a package. Merging package
thermal driver into core thermal driver doesn't make sense and may mislead.

Secondly, merging the two drivers together may cause coding mess. It's easier
to include various package level sensors info if more sensor information is
implemented. Coretemp code needs to consider a lot of legacy machine cases.
Pkgtemp code only considers platform starting from Sandy Bridge.

On a 1Sx4Cx2T Sandy Bridge platform, lm-sensors dumps the pkgtemp and coretemp:

pkgtemp-isa-0000
Adapter: ISA adapter
physical id 0: +33.0°C  (high = +79.0°C, crit = +99.0°C)

coretemp-isa-0000
Adapter: ISA adapter
Core 0:      +32.0°C  (high = +79.0°C, crit = +99.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1:      +32.0°C  (high = +79.0°C, crit = +99.0°C)

coretemp-isa-0002
Adapter: ISA adapter
Core 2:      +32.0°C  (high = +79.0°C, crit = +99.0°C)

coretemp-isa-0003
Adapter: ISA adapter
Core 3:      +32.0°C  (high = +79.0°C, crit = +99.0°C)

[ hpa: folded v3 patch removing improper global variable "SHOW" ]
Signed-off-by: NFenghua Yu <fenghua.yu@intel.com>
LKML-Reference: <1280448826-12004-3-git-send-email-fenghua.yu@intel.com>
Reviewed-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>

Don't assume that CPU entry number and core ID always match. It
worked in the simple cases (single CPU, no HT) but fails on
multi-CPU systems.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NHuaxu Wan <huaxu.wan@intel.com>
Cc: stable@kernel.org

On hyper-threaded CPUs, each core appears twice in the CPU list. Skip
the second entry to avoid duplicate sensors.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NHuaxu Wan <huaxu.wan@intel.com>
Cc: stable@kernel.org

The IT8720F has no VIN7 pin, so VCCH should always be routed
internally to VIN7 with an internal divider. Curiously, there still
is a configuration bit to control this, which means it can be set
incorrectly. And even more curiously, many boards out there are
improperly configured, even though the IT8720F datasheet claims that
the internal routing of VCCH to VIN7 is the default setting. So we
force the internal routing in this case.

It turns out that all boards with the wrong setting are from Gigabyte,
so I suspect a BIOS bug. But it's easy enough to workaround in the
driver, so let's do it.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Jean-Marc Spaggiari <jean-marc@spaggiari.org>
Cc: stable@kernel.org

Reported temperature for ASB1 CPUs is too high.
Add ASB1 CPU revisions (these are also non-desktop variants) to the
list of CPUs for which the temperature fixup is not required.

Example: (from LENOVO ThinkPad Edge 13, 01972NG, system was idle)

  Current kernel reports

  $ sensors
  k8temp-pci-00c3
  Adapter: PCI adapter
  Core0 Temp:  +74.0 C
  Core0 Temp:  +70.0 C
  Core1 Temp:  +69.0 C
  Core1 Temp:  +70.0 C

  With this patch I have

  $ sensors
  k8temp-pci-00c3
  Adapter: PCI adapter
  Core0 Temp:  +54.0 C
  Core0 Temp:  +51.0 C
  Core1 Temp:  +48.0 C
  Core1 Temp:  +49.0 C

Cc: stable@kernel.org [.32.x .33.x, .34.x]
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: NAndreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Commit a2e066bb introduced core
swapping for CPU models 64 and later. I recently had a report about
a Sempron 3200+, model 95, for which this patch broke temperature
reading. It happens that this is a single-core processor, so the
effect of the swapping was to read a temperature value for a core
that didn't exist, leading to an incorrect value (-49 degrees C.)

Disabling core swapping on singe-core processors should fix this.

Additional comment from Andreas:

The BKDG says

  Thermal Sensor Core Select (ThermSenseCoreSel)-Bit 2. This bit
  selects the CPU whose temperature is reported in the CurTemp
  field. This bit only applies to dual core processors. For
  single core processors CPU0 Thermal Sensor is always selected.

k8temp_probe() correctly detected that SEL_CORE can't be used on single
core CPU. Thus k8temp did never update the temperature values stored
in temp[1][x] and -49 degrees was reported. For single core CPUs we
must use the values read into temp[0][x].
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Tested-by: NRick Moritz <rhavin@gmx.net>
Acked-by: NAndreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org

i5k_amb.ko uses dynamically allocated memory (by kmalloc) for
attributes passed to sysfs. So, sysfs_attr_init() should be called
for working happy with lockdep.
Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org [2.6.34 only]

When detecting AM2+ or AM3 socket with DDR2, only blacklist cores
which are known to exist in AM2+ format.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NClemens Ladisch <clemens@ladisch.de>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org

I2C drivers can use the clientdata-pointer to point to private data. As I2C
devices are not really unregistered, but merely detached from their driver, it
used to be the drivers obligation to clear this pointer during remove() or a
failed probe(). As a couple of drivers forgot to do this, it was agreed that it
was cleaner if the i2c-core does this clearance when appropriate, as there is
no guarantee for the lifetime of the clientdata-pointer after remove() anyhow.
This feature was added to the core with commit
e4a7b9b0 to fix the faulty drivers.

As there is no need anymore to clear the clientdata-pointer, remove all current
occurrences in the drivers to simplify the code and prevent confusion.
Signed-off-by: NWolfram Sang <w.sang@pengutronix.de>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Acked-by: NRichard Purdie <rpurdie@linux.intel.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Add support for the Texas Instruments TMP105 temperature sensor
device.
Signed-off-by: NShubhrajyoti Datta <shubhrajyoti@ti.com>
Acked-by: NJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Read only one of the GPIO pins as an analog voltage. The ADC can be
switched to a different GPIO pin at runtime, but this is not supported.

Previously, this driver would report the analog voltage of the currently
selected GPIO pin as all three GPIO voltages: in9_input, in10_input and
in11_input.
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org

Add support for the hardware monitoring capabilities of the SCH5127
chip to the dme1737 driver.
Signed-off-by: NJuerg Haefliger <juergh@gmail.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Tested-by: NJeff Rickman <jrickman@myamigos.us>

Only stop the chip at driver exit if it was stopped when driver was
loaded. Leave it running otherwise.

Also restore the device configuration if probe failed, to not leave
the system in a dangling state.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Steven King <sfking@fdwdc.com>

Suspend and resume functions shouldn't overwrite the configuration
register. They should only alter the one bit they have to touch.

Also don't assume that register reads and writes always succeed.
Handle errors properly, shall they happen.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Steven King <sfking@fdwdc.com>

Fixes from my driver review:
http://lists.lm-sensors.org/pipermail/lm-sensors/2010-March/028051.html

Only the small changes are in there, more important changes will come
later separately as time permits.

* Drop the remnants of the now gone detect function
* The TMP102 has no known compatible chip
* Include the right header files
* Clarify why byte swapping of register values is needed
* Strip resolution info bit from temperature register value
* Set cache lifetime to 1/3 second
* Don't arbitrarily reject limit values; clamp as needed
* Make limit writing unconditional
* Don't check for transaction types the driver doesn't use
* Properly check for error when setting configuration
* Report error on failed probe
* Make the driver load automatically where needed
* Various other minor fixes
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Steven King <sfking@fdwdc.com>

Driver for the TI TMP102.

The TI TMP102 is similar to the LM75.  It differs from the LM75 by
having a 16-bit conf register and the temp registers have a minimum
resolution of 12 bits; the extended conf register can select 13-bit
resolution (which this driver does) and also change the update rate
(which this driver currently doesn't use).

[JD: Fix tmp102_exit tag, must be __exit, not __init.]
Signed-off-by: NSteven King <sfking@fdwdc.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Provides support for the EMC1403 thermal sensor. Only reporting of values
is supported. The various Moorestown specific extras to do with thermal
alerts and the like are not in this version of the driver.

Considerably edited and tidied up by Alan Cox, plus fixes and detection
bits from Jean Delvare.
Signed-off-by: NKalhan Trisal <kalhan.trisal@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

The Apple SMC uses a systematic labeling scheme for the hardware
temperature sensors. This scheme is currently hidden from
userland. Since the sensor set, and consequently the numbering,
differs between models, an extensive database of configurations is
required for an application such as fan control. This patch adds the
SMC labels to the hwmon sysfs interface, allowing applications to use
the sensors more intelligibly.

[rydberg@euromail.se: fixed error handling]
Signed-off-by: NAlex Murray <murray.alex@gmail.com>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This patch adds generic support for the MacBook Pro 7 family
based on the 7,1 model.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

This patch adds generic support for the MacBook Pro 6 family
based on the 6,2 model.

[rydberg@euromail.se: patch cleanup]
Signed-off-by: NBernhard Froemel <froemel@vmars.tuwien.ac.at>
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

The MacBookPro 5,3 model has two fans, whereas the 5,4 model has
only one. This patch adds explicit support for the 5,3 and 5,4 models.
Signed-off-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Signed-off-by: NAndre Prendel <andre.prendel@gmx.de>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Replace octal representation of file permissions by the corresponding
constants.
Signed-off-by: NAndre Prendel <andre.prendel@gmx.de>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Based on earlier work by Ira W. Snyder.

The adm1031 chip is capable of using a runtime configurable sampling rate,
using the fan filter register. Add support for reading and setting the
update rate via sysfs.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NIra W. Snyder <iws@ovro.caltech.edu>

The lm90 driver programs the sensor chip to update its readings at 2 Hz
(500 ms between readings). However, the driver only does reads from the
chip at intervals of 2 * HZ (2000 ms between readings). Change the driver
update rate to the programmed update rate.
Signed-off-by: NIra W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Acquire the I/O region for the Super I/O chip while we're working on it.
Signed-off-by: NGiel van Schijndel <me@mortis.eu>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Some code cleanup: properly use previously defined functions, rather
than duplicating their code.
Signed-off-by: NGiel van Schijndel <me@mortis.eu>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Use the strict_strol and strict_stroul functions instead of simple_strol
and simple_stroul respectively in sysfs functions.
Signed-off-by: NGiel van Schijndel <me@mortis.eu>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Fixed several coding style issues.
Signed-off-by: NGiel van Schijndel <me@mortis.eu>
Acked-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

The LM64 appears to be an LM63 with added GPIO lines. Add support for the
hwmon functionality - GPIO can be added at some later stage if someone
has a need for them.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

When the user passes the kernel parameter acpi_enforce_resources=lax,
the ACPI resources are no longer protected, so a native driver can
make use of them. In that case, we do not want the asus_atk0110 to be
loaded. Unfortunately, this driver loads automatically due to its
MODULE_DEVICE_TABLE, so the user ends up with two drivers loaded for
the same device - this is bad.

So I suggest that we prevent the asus_atk0110 driver from loading if
acpi_enforce_resources=lax.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NLuca Tettamanti <kronos.it@gmail.com>
Cc: Len Brown <lenb@kernel.org>

The MSR IA32_TEMPERATURE_TARGET contains the TjMax value in the newer
Intel processors.
Signed-off-by: NHuaxu Wan <huaxu.wan@linux.intel.com>
Signed-off-by: NCarsten Emde <C.Emde@osadl.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The thermal sensors of Intel(R) CPUs can be detected by CPUID instruction,
indicated by CPUID.06H.EAX[0].
Signed-off-by: NHuaxu Wan <huaxu.wan@linux.intel.com>
Signed-off-by: NCarsten Emde <C.Emde@osadl.org>
Reviewed-by: NValdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: NPaul Thomas <pthomas8589@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Set valid adjustment window (0 - 2000ms).
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Content for the 8bit device threaded interrupt handlers.  Depending on the
interrupt line and chip configuration, either click or wakeup / freefall
handler is called.  In case of click, BTN_ event is sent via input device.
 In case of wakeup or freefall, input device ABS_ events are updated
immediatelly.

It is still possible to configure interrupt line 1 for fast freefall
detection and use the second line either for click or threshold based
interrupts.  Or both lines can be used for click / threshold interrupts.

Polled input device can be set to stopped state and still get coordinate
updates via input device using interrupt based method.  Polled mode and
interrupt mode can also be used parallel.

BTN_ events are remapped based on existing axis remapping information.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Original lis3 driver didn't provide interrupt handler(s) for click or
threshold event handling.  This patch adds threaded handlers for one or
two interrupt lines for 8 bit device.  Actual content for interrupt
handling is provided in the separate patch.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Tested-by: NDaniel Mack <daniel@caiaq.de>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

8 bit device has two wakeup / free fall units.  It was not possible to
configure the second unit.  This patch introduces configuration entry to
the platform data and also corresponding changes to the 8 bit setup
function.

High pass filters were enabled by default.  Patch introduces configuration
option for high pass filter cut off frequency and also possibility to
disable or enable the filter via platform data.  Since the control is a
new one and default state was filter enabled, new option is used to
disable the filter.  This way old platform data is still compatible with
the change.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Tested-by: NDaniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Separate configuration function for 8 bit version of the chip.  This way
generic part of the init function stays little bit more readable.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Tested-by: NDaniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Definitions for click were missing.
Signed-off-by: NSamu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: NEric Piel <eric.piel@tremplin-utc.net>
Tested-by: NDaniel Mack <daniel@caiaq.de>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>