linux-toradex.git/drivers/platform, branch v3.18.13

samsung-laptop: Add use_native_backlight quirk, and enable it on some models

2015-03-06T22:53:05+00:00

commit 4690555e13c48fef07f2762f6b0cd6b181e326d0 upstream.

Since kernel 3.14 the backlight control has been broken on various Samsung
Atom based netbooks. This has been bisected and this problem happens since
commit b35684b8fa94 ("drm/i915: do full backlight setup at enable time")

This has been reported and discussed in detail here:
http://lists.freedesktop.org/archives/intel-gfx/2014-July/049395.html

Unfortunately no-one has been able to fix this. This only affects Samsung
Atom netbooks, and the Linux kernel and the BIOS of those laptops have never
worked well together. All affected laptops already have a quirk to avoid using
the standard acpi-video interface and instead use the samsung specific SABI
interface which samsung-laptop uses. It seems that recent fixes to the i915
driver have also broken backlight control through the SABI interface.

The intel_backlight driver OTOH works fine, and also allows for finer grained
backlight control. So add a new use_native_backlight quirk, and replace the
broken_acpi_video quirk with this quirk for affected models. This new quirk
disables acpi-video as before and also stops samsung-laptop from registering
the SABI based samsung_laptop backlight interface, leaving only the working
intel_backlight interface.

This commit enables this new quirk for 3 models which are known to be affected,
chances are that it needs to be used on other models too.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1094948 # N145P
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1115713 # N250P
Reported-by: Bertrik Sikken  # N150P
Cc: stable@vger.kernel.org # 3.16
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

hp_accel: Add support for HP ZBook 15

2015-01-27T16:29:36+00:00

commit 6583659e0f92e38079a8dd081e0a1181a0f37747 upstream.

HP ZBook 15 laptop needs a non-standard mapping (x_inverted).

BugLink: http://bugzilla.opensuse.org/show_bug.cgi?id=905329
Signed-off-by: Dominique Leuenberger 
Signed-off-by: Takashi Iwai 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

asus-nb-wmi: Add another wapf=4 quirk

2015-01-27T16:29:36+00:00

commit 841e11ccdf90c29a7778a5d5d553bc716c3d477a upstream.

Wifi on this laptop does not work unless asus-nb-wmi.wapf=4 is specified on
the kerne commandline, add a quirk for this.

BugLink: https://bugs.launchpad.net/bugs/1173681
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart 
Signed-off-by: Greg Kroah-Hartman

platform: hp_accel: Add SERIO_I8042 as a dependency since it now includes i8042.h/serio.h

2014-11-11T05:16:15+00:00

Make hp_accel dependent on SERIO_I8042 in the Kconfig because since commit
a4c724d0723b078e4ab4670e557cda1795036a7a ('platform: hp_accel: add a i8042
filter to remove HPQ6000 data from kb bus stream') hp_accel includes i8042.h
and serio.h.

Reported-by: Jim Davis 
Signed-off-by: Giedrius Statkevičius 
Signed-off-by: Darren Hart

platform: hp_accel: add a i8042 filter to remove HPQ6000 data from kb bus stream

2014-11-07T18:37:03+00:00

Add a i8042 filter to hp_accel to remove accelerometer's data with acpi
id HPQ6000 from keyboard bus stream. The codes sent by accelerometer are
e0 25, e0 26, e0 27 and e0 28. The relevant information is already
passed through /dev/freefall so no need to send these undocumented weird
signals through the keyboard bus. Also, unclogs `dmesg` because atkbd
complained about weird scan codes, saves processing power and disk
space.

Signed-off-by: Giedrius Statkevičius 
Acked-by: Dmitry Torokhov 
Reviewed-by: Éric Piel 
Signed-off-by: Darren Hart

quirk for Lenovo Yoga 3: no rfkill switch

2014-10-28T04:45:13+00:00

The Yoga 3 does not contain any physical rfkill switch. Therefore
disable the rfkill switch identically to the Yoga 2 approach.

Signed-off-by: Stephan Mueller 
Signed-off-by: Darren Hart

acer-wmi: Add acpi_backlight=video quirk for the Acer KAV80

2014-10-28T04:45:13+00:00

The acpi-video backlight interface on the Acer KAV80 is broken, and worse
it causes the entire machine to slow down significantly after a suspend/resume.

Blacklist it, and use the acer-wmi backlight interface instead. Note that
the KAV80 is somewhat unique in that it is the only Acer model where we
fall back to acer-wmi after blacklisting, rather then using the native
(e.g. intel) backlight driver. This is done because there is no native
backlight interface on this model.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1128309
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart

samsung-laptop: Add broken-acpi-video quirk for NC210/NC110

2014-10-28T04:45:12+00:00

The acpi-video backlight interface on the NC210 does not work, blacklist it
and use the samsung-laptop interface instead.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=861573
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart

asus-nb-wmi: Add wapf4 quirk for the X550VB

2014-10-28T04:45:12+00:00

X550VB as many others Asus laptops need wapf4 quirk to make RFKILL
switch be functional. Otherwise system boots with wireless card
disabled and is only possible to enable it by suspend/resume.

Bug report:
http://bugzilla.redhat.com/show_bug.cgi?id=1089731#c23

Reported-and-tested-by: Vratislav Podzimek 
Signed-off-by: Stanislaw Gruszka 
Signed-off-by: Darren Hart

toshiba_acpi: Add Toshiba TECRA A50-A to the alt keymap dmi list

2014-10-28T04:45:11+00:00

As bug #72551, the Toshiba TECRA A50-A series models also come with the
new keymap layout as found out by Azael Avalos, so add it to the dmi
table.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=76971
Reported-and-tested-by: Blindekinder 
Cc: Azael Avalos 
Signed-off-by: Aaron Lu 
Signed-off-by: Darren Hart