linux.git/drivers/platform, branch v3.18.81

platform/x86: intel_mid_thermal: Fix module autoload

2017-11-08T09:03:49+00:00

[ Upstream commit a93151a72061e944a4915458b1b1d6d505c03bbf ]

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
$

After this patch:

$ modinfo drivers/platform/x86/intel_mid_thermal.ko | grep alias
alias:          platform:msic_thermal

Signed-off-by: Javier Martinez Canillas 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

platform/x86: acer-wmi: setup accelerometer when machine has appropriate notify event

2017-04-22T05:15:01+00:00

commit 98d610c3739ac354319a6590b915f4624d9151e6 upstream.

The accelerometer event relies on the ACERWMID_EVENT_GUID notify.
So, this patch changes the codes to setup accelerometer input device
when detected ACERWMID_EVENT_GUID. It avoids that the accel input
device created on every Acer machines.

In addition, patch adds a clearly parsing logic of accelerometer hid
to acer_wmi_get_handle_cb callback function. It is positive matching
the "SENR" name with "BST0001" device to avoid non-supported hardware.

Reported-by: Bjørn Mork 
Cc: Darren Hart 
Signed-off-by: Lee, Chun-Yi 
[andy: slightly massage commit message]
Signed-off-by: Andy Shevchenko 
Cc: Ben Hutchings 
Signed-off-by: Greg Kroah-Hartman

hp-wmi: Fix wifi cannot be hard-unblocked

2016-08-22T16:23:01+00:00

[ Upstream commit fc8a601e1175ae351f662506030f9939cb7fdbfe ]

Several users reported wifi cannot be unblocked as discussed in [1].
This patch removes the use of the 2009 flag by BIOS but uses the actual
WMI function calls - it will be skipped if WMI reports unsupported.

[1] https://bugzilla.kernel.org/show_bug.cgi?id=69131

Signed-off-by: Alex Hung 
Tested-by: Evgenii Shatokhin 
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

ideapad-laptop: Add ideapad Y700 (15) to the no_hw_rfkill DMI list

2016-04-18T12:49:39+00:00

[ Upstream commit 4db9675d927a71faa66e5ab128d2390d6329750b ]

Some Lenovo ideapad models lack a physical rfkill switch.
On Lenovo models ideapad Y700 Touch-15ISK and ideapad Y700-15ISK,
ideapad-laptop would wrongly report all radios as blocked by
hardware which caused wireless network connections to fail.

Add these models without an rfkill switch to the no_hw_rfkill list.

Signed-off-by: John Dahlstrom 
Cc:  # 3.17.x-: 4fa9dab: ideapad_laptop: Lenovo G50-30 fix rfkill reports wireless blocked
Cc: 
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

intel_scu_ipcutil: underflow in scu_reg_access()

2016-03-02T20:18:53+00:00

[ Upstream commit b1d353ad3d5835b16724653b33c05124e1b5acf1 ]

"count" is controlled by the user and it can be negative.  Let's prevent
that by making it unsigned.  You have to have CAP_SYS_RAWIO to call this
function so the bug is not as serious as it could be.

Fixes: 5369c02d951a ('intel_scu_ipc: Utility driver for intel scu ipc')
Signed-off-by: Dan Carpenter 
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list

2016-02-15T20:42:28+00:00

[ Upstream commit 6b31de3e698582fe0b8f7f4bab15831b73204800 ]

Like the Yoga 900 models the Lenovo Yoga 700 does not have a
hw rfkill switch, and trying to read the hw rfkill switch through the
ideapad module causes it to always reported blocking breaking wifi.

This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing
the wifi breakage.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272
Tested-by: 
Cc: stable@vger.kernel.org
Signed-off-by: Josh Boyer 
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

ideapad-laptop: Add Lenovo Yoga 900 to no_hw_rfkill dmi list

2016-02-15T20:42:28+00:00

[ Upstream commit f71c882dd4cfe4aa88ea07b1402ddd43605d4aef ]

Like some of the other Yoga models the Lenovo Yoga 900 does not have a
hw rfkill switch, and trying to read the hw rfkill switch through the
ideapad module causes it to always reported blocking breaking wifi.

This commit adds the Lenovo Yoga 900 to the no_hw_rfkill dmi list, fixing
the wifi breakage.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1275490
Cc: stable@vger.kernel.org
Reported-and-tested-by: Kevin Fenzi 
Signed-off-by: Hans de Goede 
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

ideapad-laptop: Add Lenovo ideapad Y700-17ISK to no_hw_rfkill dmi list

2016-02-10T03:57:36+00:00

[ Upstream commit edde316acb5f07c04abf09a92f59db5d2efd14e2 ]

One of the newest ideapad models also lacks a physical hw rfkill switch,
and trying to read the hw rfkill switch through the ideapad module
causes it to always reported blocking breaking wifi.

Fix it by adding this model to the DMI list.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1286293
Cc: stable@vger.kernel.org
Signed-off-by: Josh Boyer 
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

hp-wmi: limit hotkey enable

2015-10-28T02:12:47+00:00

[ Upstream commit 8a1513b49321e503fd6c8b6793e3b1f9a8a3285b ]

Do not write initialize magic on systems that do not have
feature query 0xb. Fixes Bug #82451.

Redefine FEATURE_QUERY to align with 0xb and FEATURE2 with 0xd
for code clearity.

Add a new test function, hp_wmi_bios_2008_later() & simplify
hp_wmi_bios_2009_later(), which fixes a bug in cases where
an improper value is returned. Probably also fixes Bug #69131.

Add missing __init tag.

Signed-off-by: Kyle Evans 
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin

dell-laptop: Fix allocating & freeing SMI buffer page

2015-08-04T18:38:19+00:00

[ Upstream commit b8830a4e71b15d0364ac8e6c55301eea73f211da ]

This commit fix kernel crash when probing for rfkill devices in dell-laptop
driver failed. Function free_page() was incorrectly used on struct page *
instead of virtual address of SMI buffer.

This commit also simplify allocating page for SMI buffer by using
__get_free_page() function instead of sequential call of functions
alloc_page() and page_address().

Signed-off-by: Pali Rohár 
Acked-by: Michal Hocko 
Cc: stable@vger.kernel.org
Signed-off-by: Darren Hart 
Signed-off-by: Sasha Levin