After a period of RFC for this driver, I think it is ready
for inclusion in the platform-driver-x86 tree, hopefully to
be staged in the next merge window into Linus's tree.

--Vernon

------------------------------------------------------------

IBM Real-Time "SMI Free" mode driver

This driver supports the Real-Time Linux (RTL) BIOS feature.
The RTL feature allows non-fatal System Management Interrupts
(SMIs) to be disabled on supported IBM platforms and is
intended to be coupled with a user-space daemon to monitor
the hardware in a way that can be prioritized and scheduled
to better suit the requirements for the system.

The Device is presented as a special "_RTL_" table to the OS
in the Extended BIOS Data Area.  There is a simple protocol
for entering and exiting the mode at runtime.  This driver
creates a simple sysfs interface to allow a simple entry and
exit from RTL mode in the UFI/BIOS.

Since the driver is specific to IBM SystemX hardware (x86-
based servers) it only builds on x86 builds.  To reduce the
risk of loading on the wrong hardware, the module uses DMI
information and checks a list of servers that are known to
work.
Signed-off-by: NVernon Mauery <vernux@us.ibm.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Add a software rfkill switch for the WLAN interface in the OLPC XO-1
laptop. It uses the OLPC embedded controller to cut/restore power to
the Marvell WLAN chip on the motherboard.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
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>

The makefile didn't get updated when the driver changed name, which broke
the build.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The intel_scu_ipc_update_register 2nd paramter should the bits and 3rd
paramter should be the mask.

This typo was introduced during IPC function changing...
Reported-by: NRyan Zhou <ryan.zhou@intel.com>
Signed-off-by: NAlek Du <alek.du@intel.com>
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Add new module parameter that force module not to register bluetooth rfkill.

There is report that saying using this bluetooth rfkill to enable/disable
bluetooth will let bluetooth device initial failed when enable on Lenovo
ideapad S12. Fortunately there is another rfkill registered by bluetooth
driver for S12 and user can shutdown the bluetooth by either bluetooth driver
or HW RF switch.

For dual OS user, it may have some trouble that using Linux after turning off
bluetooth with another OS if we do not register bluetooth rfkill at all. So
we will force bluetooth enable when no_bt_rfkill=1.
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Tested-by: NMario 'BitKoenig' Holbe <Mario.Holbe@TU-Ilmenau.DE>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Since the platform drivers doing more for laptops than just using specific
ACPI device. It will be good to change the name from *_acpi to *-laptop.

Reference: http://lkml.org/lkml/2010/8/14/154Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Acked-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Control power of rf modules by ec commands
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

1. Read hw rfkill status by ec command
2. Not to touch sw status of each rfkill when hw rfkill notify
3. Initial rfkill status when module loaded
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

There are several bits of the return value of _CFG shows if RF/Camera devices
exist or not.
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

By reading from method _CFG to make sure we bind on the correct VPC2004 device.
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Check VPC bit to make sure the HW rfkill is touched.
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

There are two methods under VPC2004 which is used to access VDAT/VCMD of EC
register. Add helpers for read and write these two registers.

And add read_method_int for reading the return value from ACPI methods which
requires no parameter.
Signed-off-by: NIke Panhc <ike.pan@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Export the status of RF killswitch through debugfs.

The killswitch status is obtained by the SMI to BIOS. Exporting this status
through debugfs can help identify the issue with the misbehaving firmware.
Signed-off-by: NKeng-Yu Lin <keng-yu.lin@canonical.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of creating wmi_blocks and then register corresponding devices
on a separate pass do it all in one shot, since lifetime rules for both
objects are the same. This also takes care of leaking devices when
device_create fails for one of them.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of adding modalias attribute manually set it up as class's
device attribute so driver core will create and remove it for us.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

This makes source more concise and easier to read.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Do not abuse wmi_block structure to hold the head of list
of blocks, use separate list_head for that.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

There is no reason why we allocate memory and copy data into an
intermediate buffer, it is not like we are working with data coming
from userspace.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

If we _WDG returned object that is not buffer we were forgetting
to free memory allocated for that object.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Courtesy of sparse...
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Driver initialization was forgetting to remove EC address space handler
in cases when parse_wdg() method failed.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of registering (and removing) every attribute individually
switch to using sysfs attribute group. This makes sure that we
properly unwind and do not try to remove non-existent attributes which
may not be safe to do in the future.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

We need to include the SFI headers. This is fine as the SCU is only
relevant to x86 platforms with SFI.

Fixes the -next warning report.
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

In 2.6.35 the hex_to_bin() was introduced.
Signed-off-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Fix kconfig recursive dependency error in ACPI_TOSHIBA:
it uses both select and depends on for BACKLIGHT_CLASS_DEVICE.

drivers/video/backlight/Kconfig:117:error: recursive dependency detected!
drivers/video/backlight/Kconfig:117:    symbol BACKLIGHT_CLASS_DEVICE is selected by ACPI_TOSHIBA
drivers/platform/x86/Kconfig:490:       symbol ACPI_TOSHIBA depends on LEDS_CLASS
drivers/leds/Kconfig:12:        symbol LEDS_CLASS is selected by BACKLIGHT_ADP8860
drivers/video/backlight/Kconfig:285:    symbol BACKLIGHT_ADP8860 depends on BACKLIGHT_CLASS_DEVICE
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The driver uses sparse keymap library and does not use this field
anymore.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The GPS rfkill crappy code. The ops_data argument wasn't
set, and was totally misused. The fix have been tested
on an Asus R2H.

Cc: stable@kernel.org
Signed-off-by: NCorentin Chary <corentincj@iksaif.net>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Signed-off-by: NCorentin Chary <corentincj@iksaif.net>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Makes asus-laptop and eeepc-laptop _init/_exit functions
looks exactly the same as they do the same thing.
Signed-off-by: NCorentin Chary <corentincj@iksaif.net>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of implementing its own version of keymap hanlding switch over
to using sparse keymap library.

Also, install notify handler only after we allocated input device,
otherwise we may risk getting event too early and crash. Similarly,
notify handler should be removed before we unregister input device.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of implementing its own version of keymap hanlding switch over
to using sparse keymap library.

Also make sure that we install notify handler only after we allocated
input device and that we remove notify handler before unregistering
input device.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of implementing its own version of keymap hanlding switch over to
using sparse keymap library.
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

nstead of implementing its own version of keymap hanlding switch over to
using sparse keymap library.

Cc: Harald Welte <laforge@gnumonks.org>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

Instead of implementing its own version of keymap hanlding switch over to
using sparse keymap library.
Acked-by: NHerton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>