linux.git/drivers/platform/x86/Makefile, branch v4.8

intel-vbtn: new driver for Intel Virtual Button

2016-07-22T20:17:40+00:00

This driver supports power button event in Intel Virtual Button currently.
New Dell XPS 13 requires this driver for the power button.

This driver is copied/modified from intel-hid.c
Most credit goes to the author of intel-hid.c,
Alex Hung 

Signed-off-by: AceLan Kao 
Signed-off-by: Darren Hart

platform/x86: Add PMC Driver for Intel Core SoC

2016-05-27T18:47:56+00:00

This patch adds the Power Management Controller driver as a PCI driver
for Intel Core SoC architecture.

This driver can utilize debugging capabilities and supported features
as exposed by the Power Management Controller.

Please refer to the below specification for more details on PMC features.
http://www.intel.in/content/www/in/en/chipsets/100-series-chipset-datasheet-vol-2.html

The current version of this driver exposes SLP_S0_RESIDENCY counter.
This counter can be used for detecting fragile SLP_S0 signal related
failures and take corrective actions when PCH SLP_S0 signal is not
asserted after kernel freeze as part of suspend to idle flow
(echo freeze > /sys/power/state).

Intel Platform Controller Hub (PCH) asserts SLP_S0 signal when it
detects favorable conditions to enter its low power mode. As a
pre-requisite the SoC should be in deepest possible Package C-State
and devices should be in low power mode. For example, on Skylake SoC
the deepest Package C-State is Package C10 or PC10. Suspend to idle
flow generally leads to PC10 state but PC10 state may not be sufficient
for realizing the platform wide power potential which SLP_S0 signal
assertion can provide.

SLP_S0 signal is often connected to the Embedded Controller (EC) and the
Power Management IC (PMIC) for other platform power management related
optimizations.

In general, SLP_S0 assertion == PC10 + PCH low power mode + ModPhy Lanes
power gated + PLL Idle.

As part of this driver, a mechanism to read the SLP_S0_RESIDENCY is exposed
as an API and also debugfs features are added to indicate SLP_S0 signal
assertion residency in microseconds.

echo freeze > /sys/power/state
wake the system
cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec

Signed-off-by: Rajneesh Bhardwaj 
Signed-off-by: Vishwanath Somayaji 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Darren Hart

dell-laptop: extract SMBIOS-related code to a separate module

2016-03-23T17:05:38+00:00

Extract SMBIOS-related code from dell-laptop to a new kernel module,
dell-smbios.  The static specifier is removed from exported symbols,
otherwise code is just moved around.

Signed-off-by: Michał Kępień 
Reviewed-by: Pali Rohár 
[dvhart: Include linux/io.h in dell-smbios.c as caught by lkp]
Signed-off-by: Darren Hart

platform:x86: Add Intel Telemetry Debugfs interfaces

2016-01-20T01:35:51+00:00

This implements debugfs interfaces for reading the telemetry
samples from SSRAM and configuring firmware trace verbosity.
Interface created under /sys/kernel/debug/telemetry
soc_states: SoC Device and Low Power States
pss_info: Info from the Primary SubSystem
ioss_info: Info from IO SubSusytem
pss_trace_verbosity: Read/Modify PSS F/W trace verbosity
ioss_trace_verbosity: Read/Modify IOSS F/W trace verbosity.

Signed-off-by: Souvik Kumar Chakravarty 
Signed-off-by: Darren Hart

platform:x86: Add Intel telemetry platform driver

2016-01-20T01:35:50+00:00

Telemetry platform driver implements the telemetry interfaces.
Currently it supports ApolloLake. It uses the PUNIT and PMC IPC
interfaces to configure the telemetry samples to read.
The samples are read from a Secure SRAM region.

Signed-off-by: Souvik Kumar Chakravarty 
Signed-off-by: Darren Hart

platform/x86: Add Intel Telemetry Core Driver

2016-01-20T01:35:50+00:00

Intel PM Telemetry is a software mechanism via which various SoC
PM and performance related parameters like PM counters, firmware
trace verbosity, the status of different devices inside the SoC, etc.
can be monitored and analyzed. The different samples that may be
monitored can be configured at runtime via exported APIs.

This patch adds the telemetry core driver that implements basic
exported APIs.

Signed-off-by: Souvik Kumar Chakravarty 
Signed-off-by: Darren Hart

platform/x86: Add Asus Wireless Radio Control driver

2016-01-20T01:35:46+00:00

Some Asus notebooks like the Asus E202SA and the Asus X555UB have a
separate ACPI device for notifications from the airplane mode hotkey.
This device is called "Wireless Radio Control" in Asus websites and ASHS
in the DSDT, and its ACPI _HID is ATK4002 in the two models mentioned
above.

For these models, when the airplane mode hotkey (Fn+F2) is pressed, a
query 0x0B is started in the Embedded Controller, and all this query does
is a notify ASHS with the value 0x88 (for acpi_osi >= "Windows 2012"):

	Scope (_SB.PCI0.SBRG.EC0)
	{
		(...)
		Method (_Q0B, 0, NotSerialized)  // _Qxx: EC Query
		{
			If ((MSOS () >= OSW8))
			{
				Notify (ASHS, 0x88) // Device-Specific
			}
			Else
			{
				(...)
			}
		}
	}

Signed-off-by: João Paulo Rechi Vita 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Darren Hart

intel-hid: new hid event driver for hotkeys

2016-01-20T01:35:36+00:00

This driver supports various HID events including hotkeys.
Dell XPS 13 9350 requires it for the wireless hotkey.

Signed-off-by: Alex Hung 
Reviewed-and-tested-by: Andy Lutomirski 

[dvhart: Kconfig help typo fix and INPUT_SPARSEKMAP fix from Sedat Dilek]

Signed-off-by: Darren Hart

platform:x86: add Intel P-Unit mailbox IPC driver

2016-01-19T23:49:36+00:00

This driver provides support for P-Unit mailbox IPC on Intel platforms.
The heart of the P-Unit is the Foxton microcontroller and its firmware,
which provide mailbox interface for power management usage.

Signed-off-by: Qipeng Zha 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Darren Hart

platform/x86: Toshiba WMI Hotkey Driver

2015-10-03T17:07:08+00:00

Toshiba laptops that feature WMI events for hotkeys were left unsupported
by the toshiba_acpi driver, however, commit a88bc06e5aec ("toshiba_acpi:
Avoid registering input device on WMI event laptops") added hardware
support for such laptops, but the hotkeys are not handled there.

This driver adds support for hotkey monitoring on certain Toshiba laptops
that manage the hotkeys via WMI events instead of the Toshiba
Configuration Interface (TCI).

The toshiba_acpi driver and this one can co-exist, as this only takes
care of hotkeys, while the proper takes care of hardware related stuff.

Currently the driver is under the EXPERIMENTAL flag, as the keymap
and the notify function are incomplete (due to lack of hardware to test).

Signed-off-by: Azael Avalos 
Signed-off-by: Darren Hart