linux.git/drivers/platform, branch v3.9.8

x86 / platform / hp_wmi: Fix bluetooth_rfkill misuse in hp_wmi_rfkill_setup()

2013-06-13T17:49:19+00:00

commit af1d486c18bad7820b0ca52b413458914231102c upstream.

HP wmi platform driver fails to initialize GPS and causes poweroff
failure in HP Elitebook 6930p.

Call Trace:
 [] hp_wmi_bios_setup+0x25a/0x3a0 [hp_wmi]
 [] platform_drv_probe+0x3c/0x70
 [] ? driver_sysfs_add+0x7a/0xb0
 [] driver_probe_device+0x87/0x3a0
 [] __driver_attach+0x93/0xa0
 [] ? __device_attach+0x40/0x40
 [] bus_for_each_dev+0x63/0xa0
 [] driver_attach+0x1e/0x20
 [] bus_add_driver+0x1f8/0x2b0
 [] driver_register+0x71/0x150
 [] platform_driver_register+0x46/0x50
 [] platform_driver_probe+0x1b/0xa0
 [] hp_wmi_init+0x1be/0x1fb [hp_wmi]
 [] ? hp_wmi_bios_setup+0x3a0/0x3a0 [hp_wmi]
 [] do_one_initcall+0x10a/0x160
 [] load_module+0x1b46/0x2640
 [] ? ddebug_proc_write+0xf0/0xf0
 [] sys_init_module+0xa2/0xf0
 [] system_call_fastpath+0x1a/0x1f
Code: 48 ff ff ff 80 7b 24 00 74 d2 41 83 e5 01 45 38 ec 74 c9 48 8d bb a0 03 00 00 e8 ed fb aa e0 5b 41 5c 41 5d 44 89 f0 41 5e 5d c3 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66
RIP  [] rfkill_set_hw_state+0x9f/0xb0 [rfkill]
 RSP 

Check code and find this error is caused by misusing variable bluetooth_rfkill
where gps_rfkill should be.

Reported-and-tested-by: Iru Cai 
References: https://bugzilla.kernel.org/show_bug.cgi?id=58401
Signed-off-by: Lan Tianyu 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Greg Kroah-Hartman

hp_accel: Ignore the error from lis3lv02d_poweron() at resume

2013-05-19T18:38:21+00:00

commit 7783819920ca52fc582a2782f654fe6ed373f465 upstream.

The error in lis3lv02_poweron() is harmless in the resume path, so
we should ignore it. It is inline with the other usages of lis3lv02_poweron()
and matches the 3.0 code for this routine. This patch is in suse git and
might have missed making it into the mainline.
opensuse - commit id: 66ccdac87c322cf7af12bddba8c805af640b1cff

Signed-off-by: Takashi Iwai 
Signed-off-by: Shuah Khan 
Signed-off-by: Matthew Garrett 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

2013-04-18T22:14:34+00:00

Pull x86 platform driver revert from Matthew Garrett:
 "It turns out that one of the hp-wmi patches this cycle breaks some
  other HP laptops.  I think we have a good idea how to work on it for
  3.10, but it's safer to just revert it for now."

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
  Revert "hp-wmi: Add support for SMBus hotkeys"

Revert "hp-wmi: Add support for SMBus hotkeys"

2013-04-18T21:53:10+00:00

This reverts commit fabf85e3ca15d5b94058f391dac8df870cdd427a which breaks
hotkey support on some other HP laptops. We'll try doing this differently
in 3.10.

Signed-off-by: Matthew Garrett

thinkpad-acpi: kill hotkey_thread_mutex

2013-04-17T23:10:44+00:00

hotkey_kthread() does try_to_freeze() under hotkey_thread_mutex.

We can simply kill this mutex, hotkey_poll_stop_sync() does not need to
serialize with hotkey_kthread().  When kthread_stop() returns the thread
is already dead, it called do_exit()->complete_vfork_done().

Reported-by: Artem Savkov 
Reported-by: Maciej Rutecki 
Signed-off-by: Oleg Nesterov 
Acked-by: Henrique de Moraes Holschuh 
Cc: Matthew Garrett 
Cc: "Rafael J. Wysocki" 
Reviewed-by: Mandeep Singh Baines 
Cc: Aaron Lu 
Cc: Tejun Heo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Platform: x86: chromeos_laptop : Add basic platform data for atmel devices

2013-03-09T00:03:29+00:00

Add basic platform data to get the current upstream driver working
with the 224s touchpad and 1664s touchscreen.
We will be using NULL config so we will use the settings from the
devices' NVRAMs.

Signed-off-by: Benson Leung 
Tested-by: Olof Johansson 
Signed-off-by: Linus Torvalds

Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86

2013-03-03T18:16:19+00:00

Pull x86 platform driver updates from Matthew Garrett:
 "Mostly relatively small updates, along with some hardware enablement
  for Sony hardware and a pile of updates to Google's Chromebook driver"

* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (49 commits)
  ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it
  ideapad: depends on backlight subsystem and update comment
  Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names
  Platform: x86: chromeos_laptop - Add isl light sensor for Pixel
  Platform: x86: chromeos_laptop - Add a more general add_i2c_device
  Platform: x86: chromeos_laptop - Add Pixel Touchscreen
  Platform: x86: chromeos_laptop - Add support for probing devices
  Platform: x86: chromeos_laptop - Add Pixel Trackpad
  hp-wmi: fix handling of platform device
  sony-laptop: leak in error handling sony_nc_lid_resume_setup()
  hp-wmi: Add support for SMBus hotkeys
  asus-wmi: Fix unused function build warning
  acer-wmi: avoid the warning of 'devices' may be used uninitialized
  drivers/platform/x86/thinkpad_acpi.c: Handle HKEY event 0x6040
  Platform: x86: chromeos_laptop - Add HP Pavilion 14
  Platform: x86: chromeos_laptop - Add Taos tsl2583 device
  Platform: x86: chromeos_laptop - Add Taos tsl2563 device
  Platform: x86: chromeos_laptop - Add Acer C7 trackpad
  Platform: x86: chromeos_laptop - Rename setup_lumpy_tp to setup_cyapa_smbus_tp
  asus-laptop: always report brightness key events
  ...

ideapad-laptop: Depend on BACKLIGHT_CLASS_DEVICE instead of selecting it

2013-02-27T13:30:47+00:00

Selecting BACKLIGHT_CLASS_DEVICE doesn't guarantee that any of its
dependencies are enabled, and these are complicated. Depending isn't ideal
for configuration UI purposes, but is probably more appropriate here.

Signed-off-by: Matthew Garrett

ideapad: depends on backlight subsystem and update comment

2013-02-27T13:30:47+00:00

I've got a report of build failure on ideapad-laptop, which shows

drivers/built-in.o: In function `ideapad_acpi_notify':
ideapad-laptop.c:(.text+0x63876a): undefined reference to `backlight_force_update'
drivers/built-in.o: In function `ideapad_acpi_remove':
ideapad-laptop.c:(.devexit.text+0x64a7): undefined reference to `backlight_device_unregister'
drivers/built-in.o: In function `ideapad_acpi_add':
ideapad-laptop.c:(.devinit.text+0x45e28): undefined reference to `backlight_device_register'

To select backlight subsystem can prevent this error from happening.

Also update comment for this driver.

Reported-by: Fengguang Wu 
Signed-off-by: Ike Panhc 
Signed-off-by: Matthew Garrett

Platform: x86: chromeos_laptop - add i915 gmbuses to adapter names

2013-02-27T13:30:46+00:00

Add the two other i2c buses (vga and panel) from i915.
Chromebook Pixel has input and light sensor devices on these busses.

Signed-off-by: Benson Leung 
Signed-off-by: Matthew Garrett