linux-toradex.git/drivers/platform, branch v4.9.78

platform/x86: wmi: Call acpi_wmi_init() later

2018-01-17T08:38:51+00:00

commit 98b8e4e5c17bf87c1b18ed929472051dab39878c upstream.

Calling acpi_wmi_init() at the subsys_initcall() level causes ordering
issues to appear on some systems and they are difficult to reproduce,
because there is no guaranteed ordering between subsys_initcall()
calls, so they may occur in different orders on different systems.

In particular, commit 86d9f48534e8 (mm/slab: fix kmemcg cache
creation delayed issue) exposed one of these issues where genl_init()
and acpi_wmi_init() are both called at the same initcall level, but
the former must run before the latter so as to avoid a NULL pointer
dereference.

For this reason, move the acpi_wmi_init() invocation to the
initcall_sync level which should still be early enough for things
to work correctly in the WMI land.

Link: https://marc.info/?t=151274596700002&r=1&w=2
Reported-by: Jonathan McDowell 
Reported-by: Joonsoo Kim 
Tested-by: Jonathan McDowell 
Signed-off-by: Rafael J. Wysocki 
Signed-off-by: Darren Hart (VMware) 
Signed-off-by: Greg Kroah-Hartman

platform/x86: asus-wireless: send an EV_SYN/SYN_REPORT between state changes

2017-12-25T13:23:46+00:00

commit bff5bf9db1c9453ffd0a78abed3e2d040c092fd9 upstream.

Sending the switch state change twice within the same frame is invalid
evdev protocol and only works if the client handles keys immediately as
well. Processing events immediately is incorrect, it forces a fake
order of events that does not exist on the device.

Recent versions of libinput changed to only process the device state and
SYN_REPORT time, so now the key event is lost.

https://bugs.freedesktop.org/show_bug.cgi?id=104041

Signed-off-by: Peter Hutterer 
Signed-off-by: Darren Hart (VMware) 
Signed-off-by: Greg Kroah-Hartman

platform/x86: hp_accel: Add quirk for HP ProBook 440 G4

2017-12-20T09:07:31+00:00

[ Upstream commit 163ca80013aafb6dc9cb295de3db7aeab9ab43f8 ]

Added support for HP ProBook 440 G4 laptops by including the accelerometer
orientation quirk for that device. Testing was performed based on the
axis orientation guidelines here:
https://www.kernel.org/doc/Documentation/misc-devices/lis3lv02d
which states "If the left side is elevated, X increases (becomes positive)".

When tested, on lifting the left edge, x values became increasingly negative
thus indicating an inverted x-axis on the installed lis3lv02d chip.
This was compensated by adding an entry for this device in hp_accel.c
specifying the quirk as x_inverted. The patch was tested on a
ProBook 440 G4 device and x-axis as well as y and z-axis values are now
generated as per spec.

Signed-off-by: Osama Khan 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

platform/x86: intel_punit_ipc: Fix resource ioremap warning

2017-12-20T09:07:28+00:00

[ Upstream commit 6cc8cbbc8868033f279b63e98b26b75eaa0006ab ]

For PUNIT device, ISPDRIVER_IPC and GTDDRIVER_IPC resources are not
mandatory. So when PMC IPC driver creates a PUNIT device, if these
resources are not available then it creates dummy resource entries for
these missing resources. But during PUNIT device probe, doing ioremap on
these dummy resources generates following warning messages.

intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]
intel_punit_ipc: can't request region for resource [mem 0x00000000]

This patch fixes this issue by adding extra check for resource size
before performing ioremap operation.

Signed-off-by: Kuppuswamy Sathyanarayanan 
Signed-off-by: Andy Shevchenko 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

platform/x86: hp-wmi: Do not shadow error values

2017-11-15T14:53:17+00:00

commit d313876925f3e7a480a02773fd333bcab9202d5e upstream.

All the helper functions (i.e. hp_wmi_dock_state, hp_wmi_tablet_state,
...) using hp_wmi_perform_query to perform an HP WMI query shadow the
returned value in case of error.

We return -EINVAL only when the HP WMI query returns a positive value
(the specific error code) to not mix this up with the actual value
returned by the helper function.

Suggested-by: Andy Shevchenko 
Signed-off-by: Carlo Caione 
Signed-off-by: Darren Hart (VMware) 
Cc: Philip Müller 
Signed-off-by: Greg Kroah-Hartman

platform/x86: hp-wmi: Fix error value for hp_wmi_tablet_state

2017-11-15T14:53:17+00:00

commit c7dfc2facbd69dad89b75e13c608da709668dcd0 upstream.

hp_wmi_tablet_state() fails to return the correct error code when
hp_wmi_perform_query() returns the HP WMI query specific error code
that is a positive value.

Signed-off-by: Carlo Caione 
Signed-off-by: Darren Hart (VMware) 
Cc: Philip Müller 
Signed-off-by: Greg Kroah-Hartman

platform/x86: hp-wmi: Fix detection for dock and tablet mode

2017-11-15T14:53:17+00:00

commit 298747b7579f5bbbced793d997b333fd10a24921 upstream.

The current driver code is not checking for the error values returned by
'hp_wmi_dock_state()' and 'hp_wmi_tablet_state()' before passing the
returned values down to 'input_report_switch()'. This error code is
being translated to '1' in the input subsystem, reporting the wrong
status.

The biggest problem caused by this issue is that several laptops are
wrongly reported by the driver as docked, preventing them to be put to
sleep using the LID (and in most cases they are not even dockable).

With this patch we create the report switches only if we are able to
read the dock and tablet mode status correctly from ACPI.

Signed-off-by: Carlo Caione 
Signed-off-by: Darren Hart (VMware) 
Cc: Philip Müller 
Signed-off-by: Greg Kroah-Hartman

platform/x86: intel_mid_thermal: Fix module autoload

2017-11-08T09:08:36+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: ideapad-laptop: handle ACPI event 1

2017-07-05T12:40:23+00:00

[ Upstream commit cfee5d63767b2e7997c1f36420d008abbe61565c ]

On Ideapad laptops, ACPI event 1 is currently not handled. Many models
log "ideapad_laptop: Unknown event: 1" every 20 seconds or so while
running on battery power. Some convertible laptops receive this event
when switching in and out of tablet mode.

This adds and additional case for event 1 in ideapad_acpi_notify to call
ideapad_input_report(priv, vpc_bit), so that the event is reported to
userspace and we avoid unnecessary logging.

Fixes bug #107481 (https://bugzilla.kernel.org/show_bug.cgi?id=107481)
Fixes bug #65751 (https://bugzilla.kernel.org/show_bug.cgi?id=65751)

Signed-off-by: Zach Ploskey 
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

2017-04-21T07:31:24+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