Merge tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - Microsoft Surface:
     - SSAM hot unplug support
     - Surface Pro 8 keyboard cover support
     - Tablet mode switch support for Surface Pro 8 and Surface Laptop
       Studio

 - thinkpad_acpi:
     - AMD Automatice Mode Transitions (AMT) support

 - Mellanox:
     - Vulcan chassis COMe NVSwitch management support
     - XH3000 support

 - New generic/shared Intel P2SB (Primary to Sideband) support

 - Lots of small cleanups

 - Various small bugfixes

 - Various new hardware ids / quirks additions

* tag 'platform-drivers-x86-v6.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (105 commits)
  platform/x86/intel/vsec: Fix wrong type for local status variables
  platform/x86: p2sb: Move out of X86_PLATFORM_DEVICES dependency
  platform/x86: pmc_atom: Fix comment typo
  platform/surface: gpe: Add support for 13" Intel version of Surface Laptop 4
  platform/olpc: Fix uninitialized data in debugfs write
  platform/mellanox: mlxreg-lc: Fix error flow and extend verbosity
  platform/x86: pmc_atom: Match all Lex BayTrail boards with critclk_systems DMI table
  platform/x86: sony-laptop: Remove useless comparisons in sony_pic_read_possible_resource()
  tools/power/x86/intel-speed-select: Remove unneeded semicolon
  tools/power/x86/intel-speed-select: Fix off by one check
  platform/surface: tabletsw: Fix __le32 integer access
  Documentation/ABI: Add new attributes for mlxreg-io sysfs interfaces
  Documentation/ABI: mlxreg-io: Fix contact info
  platform/mellanox: mlxreg-io: Add locking for io operations
  platform/x86: mlx-platform: Add COME board revision register
  platform/x86: mlx-platform: Add support for new system XH3000
  platform/x86: mlx-platform: Introduce support for COMe NVSwitch management module for Vulcan chassis
  platform/x86: mlx-platform: Add support for systems equipped with two ASICs
  platform/x86: mlx-platform: Add cosmetic changes for alignment
  platform/x86: mlx-platform: Make activation of some drivers conditional
  ...

3 files changed, 122 insertions, 22 deletions

diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
index b312242d4f40..af0cbf143c48 100644
--- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io
+++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
@@ -1,7 +1,7 @@
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
 Date:		June 2018
 KernelVersion:	4.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file shows ASIC health status. The possible values are:
 		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
 
@@ -11,7 +11,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
 Date:		June 2018
 KernelVersion:	4.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show with which CPLD versions have been burned
 		on carrier and switch boards.
 
@@ -20,7 +20,7 @@ Description:	These files show with which CPLD versions have been burned
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
 Date:		December 2018
 KernelVersion:	5.0
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file shows the system fans direction:
 		forward direction - relevant bit is set 0;
 		reversed direction - relevant bit is set 1.
@@ -30,7 +30,7 @@ Description:	This file shows the system fans direction:
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
 Date:		November 2018
 KernelVersion:	5.0
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show with which CPLD versions have been burned
 		on LED or Gearbox board.
 
@@ -39,7 +39,7 @@ Description:	These files show with which CPLD versions have been burned
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
 Date:		November 2018
 KernelVersion:	5.0
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files enable and disable the access to the JTAG domain.
 		By default access to the JTAG domain is disabled.
 
@@ -48,7 +48,7 @@ Description:	These files enable and disable the access to the JTAG domain.
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
 Date:		June 2018
 KernelVersion:	4.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file allows iio devices selection.
 
 		Attribute select_iio can be written with 0 or with 1. It
@@ -62,7 +62,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
 		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
 Date:		June 2018
 KernelVersion:	4.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files allow asserting system power cycling, switching
 		power supply units on and off and system's main power domain
 		shutdown.
@@ -89,7 +89,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
 Date:		June 2018
 KernelVersion:	4.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show the system reset cause, as following: power
 		auxiliary outage or power refresh, ASIC thermal shutdown, halt,
 		hotswap, watchdog, firmware reset, long press power button,
@@ -106,7 +106,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
 Date:		November 2018
 KernelVersion:	5.0
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show the system reset cause, as following: ComEx
 		power fail, reset from ComEx, system platform reset, reset
 		due to voltage monitor devices upgrade failure,
@@ -119,7 +119,7 @@ Description:	These files show the system reset cause, as following: ComEx
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
 Date:		November 2018
 KernelVersion:	5.0
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show with which CPLD versions have been burned
 		on LED board.
 
@@ -133,7 +133,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
 Date:		June 2019
 KernelVersion:	5.3
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show the system reset cause, as following:
 		COMEX thermal shutdown; wathchdog power off or reset was derived
 		by one of the next components: COMEX, switch board or by Small Form
@@ -148,7 +148,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show system static topology identification
 		like system's static I2C topology, number and type of FPGA
 		devices within the system and so on.
@@ -161,7 +161,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show the system reset causes, as following: reset
 		due to AC power failure, reset invoked from software by
 		assertion reset signal through CPLD. reset caused by signal
@@ -173,7 +173,7 @@ Description:	These files show the system reset causes, as following: reset
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file allows to retain ASIC up during PCIe root complex
 		reset, when attribute is set 1.
 
@@ -182,7 +182,7 @@ Description:	This file allows to retain ASIC up during PCIe root complex
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file allows to overwrite system VPD hardware write
 		protection when attribute is set 1.
 
@@ -191,7 +191,7 @@ Description:	This file allows to overwrite system VPD hardware write
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file exposes the configuration update status of burnable
 		voltage regulator devices. The status values are as following:
 		0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
@@ -201,7 +201,7 @@ Description:	This file exposes the configuration update status of burnable
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
 Date:		January 2020
 KernelVersion:	5.6
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file exposes the firmware version of burnable voltage
 		regulator devices.
 
@@ -217,7 +217,7 @@ What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
 Date:		July 2020
 KernelVersion:	5.9
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	These files show with which CPLD part numbers and minor
 		versions have been burned CPLD devices equipped on a
 		system.
@@ -471,7 +471,7 @@ Description:	These files provide the maximum powered required for line card
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/phy_reset
 Date:		May 2022
 KernelVersion:	5.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file allows to reset PHY 88E1548 when attribute is set 0
 		due to some abnormal PHY behavior.
 		Expected behavior:
@@ -483,7 +483,7 @@ Description:	This file allows to reset PHY 88E1548 when attribute is set 0
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/mac_reset
 Date:		May 2022
 KernelVersion:	5.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file allows to reset ASIC MT52132 when attribute is set 0
 		due to some abnormal ASIC behavior.
 		Expected behavior:
@@ -495,7 +495,7 @@ Description:	This file allows to reset ASIC MT52132 when attribute is set 0
 What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/qsfp_pwr_good
 Date:		May 2022
 KernelVersion:	5.19
-Contact:	Vadim Pasternak <vadimpmellanox.com>
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
 Description:	This file shows QSFP ports power status. The value is set to 0
 		when one of any QSFP ports is plugged. The value is set to 1 when
 		there are no any QSFP ports are plugged.
@@ -503,3 +503,42 @@ Description:	This file shows QSFP ports power status. The value is set to 0
 		0 - Power good, 1 - Not power good.
 
 		The files are read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic2_health
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
+Description:	This file shows 2-nd ASIC health status. The possible values are:
+		0 - health failed, 2 - health OK, 3 - ASIC in booting state.
+
+		The file is read only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_reset
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic2_reset
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
+Description:	These files allow to each of ASICs by writing 1.
+
+		The files are write only.
+
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/comm_chnl_ready
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
+Description:	This file is used to indicate remote end (for example BMC) that system
+	        host CPU is ready for sending telemetry data to remote end.
+		For indication the file should be written 1.
+
+		The file is write only.
+
+What:		/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config3
+Date:		January 2020
+KernelVersion:	5.6
+Contact:	Vadim Pasternak <vadimp@nvidia.com>
+Description:	The file indicates COME module hardware configuration.
+		The value is pushed by hardware through GPIO pins.
+		The purpose is to expose some minor BOM changes for the same system SKU.
+
+		The file is read only.
diff --git a/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw b/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw
new file mode 100644
index 000000000000..74cd9d754e60
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw
@@ -0,0 +1,57 @@
+What:		/sys/bus/surface_aggregator/devices/01:0e:01:00:01/state
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Maximilian Luz <luzmaximilian@gmail.com>
+Description:
+		This attribute returns a string with the current type-cover
+		or device posture, as indicated by the embedded controller.
+		Currently returned posture states are:
+
+		- "disconnected": The type-cover has been disconnected.
+
+		- "closed": The type-cover has been folded closed and lies on
+		  top of the display.
+
+		- "laptop": The type-cover is open and in laptop-mode, i.e.,
+		  ready for normal use.
+
+		- "folded-canvas": The type-cover has been folded back
+		  part-ways, but does not lie flush with the back side of the
+		  device. In general, this means that the kick-stand is used
+		  and extended atop of the cover.
+
+		- "folded-back": The type cover has been fully folded back and
+		  lies flush with the back side of the device.
+
+		- "<unknown>": The current state is unknown to the driver, for
+		  example due to newer as-of-yet unsupported hardware.
+
+		New states may be introduced with new hardware. Users therefore
+		must not rely on this list of states being exhaustive and
+		gracefully handle unknown states.
+
+What:		/sys/bus/surface_aggregator/devices/01:26:01:00:01/state
+Date:		July 2022
+KernelVersion:	5.20
+Contact:	Maximilian Luz <luzmaximilian@gmail.com>
+Description:
+		This attribute returns a string with the current device posture, as indicated by the embedded controller. Currently
+		returned posture states are:
+
+		- "closed": The lid of the device is closed.
+
+		- "laptop": The lid of the device is opened and the device
+		  operates as a normal laptop.
+
+		- "slate": The screen covers the keyboard or has been flipped
+		  back and the device operates mainly based on touch input.
+
+		- "tablet": The device operates as tablet and exclusively
+		  relies on touch input (or external peripherals).
+
+		- "<unknown>": The current state is unknown to the driver, for
+		  example due to newer as-of-yet unsupported hardware.
+
+		New states may be introduced with new hardware. Users therefore
+		must not rely on this list of states being exhaustive and
+		gracefully handle unknown states.
diff --git a/Documentation/driver-api/surface_aggregator/client.rst b/Documentation/driver-api/surface_aggregator/client.rst
index e519d374c378..27f95abdbe99 100644
--- a/Documentation/driver-api/surface_aggregator/client.rst
+++ b/Documentation/driver-api/surface_aggregator/client.rst
@@ -17,6 +17,8 @@
 .. |SSAM_DEVICE| replace:: :c:func:`SSAM_DEVICE`
 .. |ssam_notifier_register| replace:: :c:func:`ssam_notifier_register`
 .. |ssam_notifier_unregister| replace:: :c:func:`ssam_notifier_unregister`
+.. |ssam_device_notifier_register| replace:: :c:func:`ssam_device_notifier_register`
+.. |ssam_device_notifier_unregister| replace:: :c:func:`ssam_device_notifier_unregister`
 .. |ssam_request_sync| replace:: :c:func:`ssam_request_sync`
 .. |ssam_event_mask| replace:: :c:type:`enum ssam_event_mask <ssam_event_mask>`
 
@@ -312,7 +314,9 @@ Handling Events
 To receive events from the SAM EC, an event notifier must be registered for
 the desired event via |ssam_notifier_register|. The notifier must be
 unregistered via |ssam_notifier_unregister| once it is not required any
-more.
+more. For |ssam_device| type clients, the |ssam_device_notifier_register| and
+|ssam_device_notifier_unregister| wrappers should be preferred as they properly
+handle hot-removal of client devices.
 
 Event notifiers are registered by providing (at minimum) a callback to call
 in case an event has been received, the registry specifying how the event