Trivial fix for some -Wuninitialized compiler warnings.
Signed-off-by: NDanny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Turn off the following triggered with gcc 4.6.1 on Debian testing:

drivers/platform/x86/hdaps.c: In function ‘hdaps_temp2_show’:
drivers/platform/x86/hdaps.c:398:16: warning: ‘temp’ may be used uninitialized in this function [-Wuninitialized]
drivers/platform/x86/hdaps.c: In function ‘hdaps_temp1_show’:
drivers/platform/x86/hdaps.c:385:16: warning: ‘temp’ may be used uninitialized in this function [-Wuninitialized]

Cc: Frank Seidel <frank@f-seidel.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: NBorislav Petkov <bp@alien8.de>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Added pr_fmt, converted printks and removed
hard coded prefixes.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The hdaps driver isn't a hardware monitoring driver, so it shouldn't
live under driver/hwmon. drivers/platform/x86 seems much more
appropriate, as the driver is only useful on x86 laptops.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Frank Seidel <frank@f-seidel.de>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Add Lenovo Thinkpad T400.  I have done the testing on my laptop.  The
hdaps module detects the device and the hdapsd daemon is able to [un]park
the disk.
Signed-off-by: NRitesh Raj Sarraf <rrs@debian.org>
Cc: Frank Seidel <frank@f-seidel.de>
Cc: Dmitry Torokhov <dtor@mail.ru>
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>

Drivers should be including <linux/io.h> instead of <asm/io.h>.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Alistair John Strachan <alistair@devzero.co.uk>
Cc: Nicolas Boichat <nicolas@boichat.ch>
Cc: Juerg Haefliger <juergh@gmail.com>
Cc: Frank Seidel <frank@f-seidel.de>
Acked-by: NJim Cromie <jim.cromie@gmail.com>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Roger Lucas <vt8231@hiddenengine.co.uk>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Fix for kernel.org bug #7154: hdaps inversion of actual Thinkpad
X41's Y-axis.
Signed-off-by: NFrank Seidel <frank@f-seidel.de>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Fix for kernel.org bug #7154: hdaps inversion of each axis. This
version is based on the work from Michael Ruoss <miruoss@student.ethz.ch>.
Signed-off-by: NFrank Seidel <frank@f-seidel.de>
Signed-off-by: NJean Delvare <khali@linux-fr.org>

Adds R61, T61p, X61s, X61, Z61m, Z61p models to whitelist.

Fixes this:

cullen@lenny:~$ sudo modprobe hdaps
FATAL: Error inserting hdaps (/lib/modules/2.6.22-10-generic/kernel/drivers/hwmon/hdaps.ko): No such device

[25192.888000] hdaps: supported laptop not found!
[25192.888000] hdaps: driver init failed (ret=-19)!

Originally based on an Ubuntu patch that got it wrong, the dmidecode
output of the corresponding laptops shows LENOVO as the manufacturer.
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/133636

tested on X61s:
[  184.893588] hdaps: inverting axis readings.
[  184.893588] hdaps: LENOVO ThinkPad X61s detected.
[  184.893588] input: hdaps as /class/input/input12
[  184.924326] hdaps: driver successfully loaded.

Cc: Klaus S. Madsen <ubuntu@hjernemadsen.org>
Cc: Chuck Short <zulcss@ubuntu.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Nmaximilian attems <max@stro.at>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Adds DMI system identifier for ThinkPad T61.

Originally written by Klaus S. Madsen.

Taken from http://launchpadlibrarian.net/10864950/hdaps-t61.patchSigned-off-by: NTim Gardner <tim.gardner@canonical.com>
Signed-off-by: Nmaximilian attems <max@stro.at>
Cc: Klaus S. Madsen <ubuntu@hjernemadsen.org>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
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>

Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Jiri Kosina <jikos@jikos.cz>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

get rid of input BIT* duplicate defines

use newly global defined macros for input layer. Also remove includes of
input.h from non-input sources only for BIT macro definiton. Define the
macro temporarily in local manner, all those local definitons will be
removed further in this patchset (to not break bisecting).
BIT macro will be globally defined (1<<x)
Signed-off-by: NJiri Slaby <jirislaby@gmail.com>
Cc: <dtor@mail.ru>
Acked-by: NJiri Kosina <jkosina@suse.cz>
Cc: <lenb@kernel.org>
Acked-by: NMarcel Holtmann <marcel@holtmann.org>
Cc: <perex@suse.cz>
Acked-by: NMauro Carvalho Chehab <mchehab@infradead.org>
Cc: <vernux@us.ibm.com>
Cc: <malattia@linux.it>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Switch to using input-polldev skeleton instead of implementing polling loop
by itself.  This also fixes problem with trylock on a mutex in atomic
context.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>

Three main sets of changes:

1) dmi_get_system_info() return value should have been marked const,
   since callers should not be changing that data.

2) const-ify DMI internals, since DMI firmware tables should,
   whenever possible, be marked const to ensure we never ever write to
   that data area.

3) const-ify DMI API, to enable marking tables const where possible
   in low-level drivers.

And if we're really lucky, this might enable some additional
optimizations on the part of the compiler.

The bulk of the changes are #2 and #3, which are interrelated.  #1 could
have been a separate patch, but it was so small compared to the others,
it was easier to roll it into this changeset.
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

In preparation for struct class_device -> struct device input core
conversion, switch to using input_dev->dev.parent when specifying device
position in sysfs tree.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Acked-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The hdaps driver uses a semaphore as mutex.  Use the mutex API instead of the
(binary) semaphore.
Signed-off-by: NMatthias Kaehlcke <matthias.kaehlcke@gmail.com>
Cc: Robert Love <rlove@rlove.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.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: NStephan Berberig <s.berberig@arcor.de>
Signed-off-by: NRobert Love <rlove@rlove.org>
Signed-off-by: NJean 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: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NRobert Love <rlove@rlove.org>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

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: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

HDAPS: handle errors from input_register_device()
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Fix a typo in the hdaps driver.
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Acked-by: NRobert Love <rml@novell.com>
Signed-off-by: NGreg 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: NJean Delvare <khali@linux-fr.org>
Cc: Arkadiusz Miskiewicz <arekm@maven.pl>
Cc: Frank Gevaerts <frank@gevaerts.be>
Signed-off-by: NGreg 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: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add support for forthcoming Lenovo-branded machines to the HDAPS driver.
Signed-off-by: NRobert Love <rml@novell.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus 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: NFrank 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: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus 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, 9a61bf63 but this
only reverts this one file)
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

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: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Trivial patch to report both hdaps axises to the joystick device, not
just the X axis.
Signed-off-by: NRobert Love <rml@novell.com>
Signed-off-by: NJean Delvare <khali@linux-fr.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>

Convert everyone who uses platform_bus_type to include
linux/platform_device.h.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>

In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.

Since this is obsolete infrastructure which is no longer necessary,
we can remove it.  Here's an (untested) patch to do exactly that.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

- Handle dmi_system_check() elegantly, now that my bugfix is upstream.

- Add support for the X41 and R52.

- Cleanup some comments do I do not have to keep updating them with each
  new whitelisted laptop.
Signed-off-by: NRobert Love <rml@novell.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- Remove the relative input device
- Add an absolute input device
- Misc. cleanup and bug fixing

The patch is sizable due to the cleanup from removing the relative input
device (net -112 lines).
Signed-off-by: NRobert Love <rml@novell.com>
Cc: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Driver for the IBM Hard Drive Active Protection System (HDAPS), an
accelerometer found in most modern ThinkPads.
Signed-off-by: NRobert Love <rml@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>