Merge tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:
 "Highlights:

   - New think-lmi driver adding support for changing Lenovo Thinkpad
     BIOS settings from within Linux using the standard firmware-
     attributes class sysfs API

   - MS Surface aggregator-cdev now also supports forwarding events to
     user-space (for debugging / new driver development purposes only)

   - New intel_skl_int3472 driver this provides the necessary glue to
     translate ACPI table information to GPIOs, regulators, etc. for
     camera sensors on Intel devices with IPU3 attached MIPI cameras

   - A whole bunch of other fixes + device-specific quirk additions

   - New devm_work_autocancel() devm-helpers.h function"

* tag 'platform-drivers-x86-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (83 commits)
  platform/x86: dell-wmi-sysman: Change user experience when Admin/System Password is modified
  platform/x86: intel_skl_int3472: Uninitialized variable in skl_int3472_handle_gpio_resources()
  platform/x86: think-lmi: Move kfree(setting->possible_values) to tlmi_attr_setting_release()
  platform/x86: think-lmi: Split current_value to reflect only the value
  platform/x86: think-lmi: Fix issues with duplicate attributes
  platform/x86: think-lmi: Return EINVAL when kbdlang gets set to a 0 length string
  platform/x86: intel_cht_int33fe: Move to its own subfolder
  platform/x86: intel_skl_int3472: Move to intel/ subfolder
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_clock()
  platform/x86: intel_skl_int3472: Provide skl_int3472_unregister_regulator()
  platform/x86: intel_skl_int3472: Use ACPI GPIO resource directly
  platform/x86: intel_skl_int3472: Fix dependencies (drop CLKDEV_LOOKUP)
  platform/x86: intel_skl_int3472: Free ACPI device resources after use
  platform/x86: Remove "default n" entries
  platform/x86: ISST: Use numa node id for cpu pci dev mapping
  platform/x86: ISST: Optimize CPU to PCI device mapping
  tools/power/x86/intel-speed-select: v1.10 release
  tools/power/x86/intel-speed-select: Fix uncore memory frequency display
  extcon: extcon-max8997: Simplify driver using devm
  extcon: extcon-max8997: Fix IRQ freeing at error path
  ...

Author: torvalds

Documentation/ABI/testing/sysfs-class-firmware-attributes

@@ -197,8 +197,24 @@ Description:
 		Drivers may emit a CHANGE uevent when a password is set or unset
 		userspace may check it again.
 
-		On Dell systems, if Admin password is set, then all BIOS attributes
+		On Dell and Lenovo systems, if Admin password is set, then all BIOS attributes
 		require password validation.
+		On Lenovo systems if you change the Admin password the new password is not active until
+		the next boot.
+
+		Lenovo specific class extensions
+		------------------------------
+
+		On Lenovo systems the following additional settings are available:
+
+		lenovo_encoding:
+					The encoding method that is used. This can be either "ascii"
+					or "scancode". Default is set to "ascii"
+
+		lenovo_kbdlang:
+					The keyboard language method that is used. This is generally a
+					two char code (e.g. "us", "fr", "gr") and may vary per platform.
+					Default is set to "us"
 
 What:		/sys/class/firmware-attributes/*/attributes/pending_reboot
 Date:		February 2021

Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi

@@ -0,0 +1,55 @@
+What:		/sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+Date:		Apr 2021
+KernelVersion:	5.13
+Contact:	"[email protected]>"
+Description:
+		Display which dell hardware level privacy devices are supported
+		“Dell Privacy” is a set of HW, FW, and SW features to enhance
+		Dell’s commitment to platform privacy for MIC, Camera, and
+		ePrivacy screens.
+		The supported hardware privacy devices are:
+Attributes:
+		Microphone Mute:
+				Identifies the local microphone can be muted by hardware, no applications
+				is available to capture system mic sound
+
+		Camera Shutter:
+				Identifies camera shutter controlled by hardware, which is a micromechanical
+				shutter assembly that is built onto the camera module to block capturing images
+				from outside the laptop
+
+		supported:
+				The privacy device is supported by this system
+
+		unsupported:
+				The privacy device is not supported on this system
+
+		For example to check which privacy devices are supported:
+
+		# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+		[Microphone Mute] [supported]
+		[Camera Shutter] [supported]
+		[ePrivacy Screen] [unsupported]
+
+What:		/sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+Date:		Apr 2021
+KernelVersion:	5.13
+Contact:	"[email protected]>"
+Description:
+		Allow user space to check current dell privacy device state.
+		Describes the Device State class exposed by BIOS which can be
+		consumed by various applications interested in knowing the Privacy
+		feature capabilities
+Attributes:
+		muted:
+			Identifies the privacy device is turned off and cannot send stream to OS applications
+
+		unmuted:
+			Identifies the privacy device is turned on ,audio or camera driver can get
+			stream from mic and camera module to OS applications
+
+		For example to check all supported current privacy device states:
+
+		# cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+		[Microphone] [unmuted]
+		[Camera Shutter] [unmuted]

Documentation/driver-api/surface_aggregator/clients/cdev.rst

@@ -1,9 +1,8 @@
 .. SPDX-License-Identifier: GPL-2.0+
 
-.. |u8| replace:: :c:type:`u8 <u8>`
-.. |u16| replace:: :c:type:`u16 <u16>`
 .. |ssam_cdev_request| replace:: :c:type:`struct ssam_cdev_request <ssam_cdev_request>`
 .. |ssam_cdev_request_flags| replace:: :c:type:`enum ssam_cdev_request_flags <ssam_cdev_request_flags>`
+.. |ssam_cdev_event| replace:: :c:type:`struct ssam_cdev_event <ssam_cdev_event>`
 
 ==============================
 User-Space EC Interface (cdev)
@@ -23,6 +22,40 @@ These IOCTLs and their respective input/output parameter structs are defined in
 A small python library and scripts for accessing this interface can be found
 at https://github.com/linux-surface/surface-aggregator-module/tree/master/scripts/ssam.
 
+.. contents::
+
+
+Receiving Events
+================
+
+Events can be received by reading from the device-file. The are represented by
+the |ssam_cdev_event| datatype.
+
+Before events are available to be read, however, the desired notifiers must be
+registered via the ``SSAM_CDEV_NOTIF_REGISTER`` IOCTL. Notifiers are, in
+essence, callbacks, called when the EC sends an event. They are, in this
+interface, associated with a specific target category and device-file-instance.
+They forward any event of this category to the buffer of the corresponding
+instance, from which it can then be read.
+
+Notifiers themselves do not enable events on the EC. Thus, it may additionally
+be necessary to enable events via the ``SSAM_CDEV_EVENT_ENABLE`` IOCTL. While
+notifiers work per-client (i.e. per-device-file-instance), events are enabled
+globally, for the EC and all of its clients (regardless of userspace or
+non-userspace). The ``SSAM_CDEV_EVENT_ENABLE`` and ``SSAM_CDEV_EVENT_DISABLE``
+IOCTLs take care of reference counting the events, such that an event is
+enabled as long as there is a client that has requested it.
+
+Note that enabled events are not automatically disabled once the client
+instance is closed. Therefore any client process (or group of processes) should
+balance their event enable calls with the corresponding event disable calls. It
+is, however, perfectly valid to enable and disable events on different client
+instances. For example, it is valid to set up notifiers and read events on
+client instance ``A``, enable those events on instance ``B`` (note that these
+will also be received by A since events are enabled/disabled globally), and
+after no more events are desired, disable the previously enabled events via
+instance ``C``.
+
 
 Controller IOCTLs
 =================
@@ -45,9 +78,33 @@ The following IOCTLs are provided:
      - ``REQUEST``
      - Perform synchronous SAM request.
 
+   * - ``0xA5``
+     - ``2``
+     - ``W``
+     - ``NOTIF_REGISTER``
+     - Register event notifier.
 
-``REQUEST``
------------
+   * - ``0xA5``
+     - ``3``
+     - ``W``
+     - ``NOTIF_UNREGISTER``
+     - Unregister event notifier.
+
+   * - ``0xA5``
+     - ``4``
+     - ``W``
+     - ``EVENT_ENABLE``
+     - Enable event source.
+
+   * - ``0xA5``
+     - ``5``
+     - ``W``
+     - ``EVENT_DISABLE``
+     - Disable event source.
+
+
+``SSAM_CDEV_REQUEST``
+---------------------
 
 Defined as ``_IOWR(0xA5, 1, struct ssam_cdev_request)``.
 
@@ -82,6 +139,66 @@ submitted, and completed (i.e. handed back to user-space) successfully from
 inside the IOCTL, but the request ``status`` member may still be negative in
 case the actual execution of the request failed after it has been submitted.
 
-A full definition of the argument struct is provided below:
+A full definition of the argument struct is provided below.
+
+``SSAM_CDEV_NOTIF_REGISTER``
+----------------------------
+
+Defined as ``_IOW(0xA5, 2, struct ssam_cdev_notifier_desc)``.
+
+Register a notifier for the event target category specified in the given
+notifier description with the specified priority. Notifiers registration is
+required to receive events, but does not enable events themselves. After a
+notifier for a specific target category has been registered, all events of that
+category will be forwarded to the userspace client and can then be read from
+the device file instance. Note that events may have to be enabled, e.g. via the
+``SSAM_CDEV_EVENT_ENABLE`` IOCTL, before the EC will send them.
+
+Only one notifier can be registered per target category and client instance. If
+a notifier has already been registered, this IOCTL will fail with ``-EEXIST``.
+
+Notifiers will automatically be removed when the device file instance is
+closed.
+
+``SSAM_CDEV_NOTIF_UNREGISTER``
+------------------------------
+
+Defined as ``_IOW(0xA5, 3, struct ssam_cdev_notifier_desc)``.
+
+Unregisters the notifier associated with the specified target category. The
+priority field will be ignored by this IOCTL. If no notifier has been
+registered for this client instance and the given category, this IOCTL will
+fail with ``-ENOENT``.
+
+``SSAM_CDEV_EVENT_ENABLE``
+--------------------------
+
+Defined as ``_IOW(0xA5, 4, struct ssam_cdev_event_desc)``.
+
+Enable the event associated with the given event descriptor.
+
+Note that this call will not register a notifier itself, it will only enable
+events on the controller. If you want to receive events by reading from the
+device file, you will need to register the corresponding notifier(s) on that
+instance.
+
+Events are not automatically disabled when the device file is closed. This must
+be done manually, via a call to the ``SSAM_CDEV_EVENT_DISABLE`` IOCTL.
+
+``SSAM_CDEV_EVENT_DISABLE``
+---------------------------
+
+Defined as ``_IOW(0xA5, 5, struct ssam_cdev_event_desc)``.
+
+Disable the event associated with the given event descriptor.
+
+Note that this will not unregister any notifiers. Events may still be received
+and forwarded to user-space after this call. The only safe way of stopping
+events from being received is unregistering all previously registered
+notifiers.
+
+
+Structures and Enums
+====================
 
 .. kernel-doc:: include/uapi/linux/surface_aggregator/cdev.h

Documentation/userspace-api/ioctl/ioctl-number.rst

@@ -325,7 +325,7 @@ Code  Seq#    Include File                                           Comments
 0xA3  90-9F  linux/dtlk.h
 0xA4  00-1F  uapi/linux/tee.h                                        Generic TEE subsystem
 0xA4  00-1F  uapi/asm/sgx.h                                          <mailto:[email protected]>
-0xA5  01     linux/surface_aggregator/cdev.h                         Microsoft Surface Platform System Aggregator
+0xA5  01-05  linux/surface_aggregator/cdev.h                         Microsoft Surface Platform System Aggregator
                                                                      <mailto:[email protected]>
 0xA5  20-2F  linux/surface_aggregator/dtx.h                          Microsoft Surface DTX driver
                                                                      <mailto:[email protected]>

MAINTAINERS

@@ -5187,7 +5187,14 @@ DELL WMI NOTIFICATIONS DRIVER
 M:	Matthew Garrett <[email protected]>
 M:	Pali Rohár <[email protected]>
 S:	Maintained
-F:	drivers/platform/x86/dell/dell-wmi.c
+F:	drivers/platform/x86/dell/dell-wmi-base.c
+
+DELL WMI HARDWARE PRIVACY SUPPORT
+M:	Perry Yuan <[email protected]>
+L:	[email protected]
+L:	[email protected]
+S:	Maintained
+F:	drivers/platform/x86/dell/dell-wmi-privacy.c
 
 DELTA ST MEDIA DRIVER
 M:	Hugues Fruchet <[email protected]>
@@ -9397,6 +9404,11 @@ S:	Maintained
 F:	arch/x86/include/asm/intel_scu_ipc.h
 F:	drivers/platform/x86/intel_scu_*
 
+INTEL SKYLAKE INT3472 ACPI DEVICE DRIVER
+M:	Daniel Scally <[email protected]>
+S:	Maintained
+F:	drivers/platform/x86/intel/int3472/
+
 INTEL SPEED SELECT TECHNOLOGY
 M:	Srinivas Pandruvada <[email protected]>
 L:	[email protected]
@@ -9417,7 +9429,7 @@ F:	include/linux/firmware/intel/stratix10-smc.h
 F:	include/linux/firmware/intel/stratix10-svc-client.h
 
 INTEL TELEMETRY DRIVER
-M:	Rajneesh Bhardwaj <[email protected].com>
+M:	Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
 M:	"David E. Box" <[email protected]>
 L:	[email protected]
 S:	Maintained
@@ -12209,7 +12221,7 @@ M:	Maximilian Luz <[email protected]>
 L:	[email protected]
 S:	Maintained
 W:	https://github.com/linux-surface/surface-aggregator-module
-C:	irc://chat.freenode.net/##linux-surface
+C:	irc://irc.libera.chat/linux-surface
 F:	Documentation/driver-api/surface_aggregator/
 F:	drivers/platform/surface/aggregator/
 F:	drivers/platform/surface/surface_acpi_notify.c
@@ -18215,6 +18227,13 @@ W:	http://thinkwiki.org/wiki/Ibm-acpi
 T:	git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git
 F:	drivers/platform/x86/thinkpad_acpi.c
 
+THINKPAD LMI DRIVER
+M:	Mark Pearson <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	Documentation/ABI/testing/sysfs-class-firmware-attributes
+F:	drivers/platform/x86/think-lmi.?
+
 THUNDERBOLT DMA TRAFFIC TEST DRIVER
 M:	Isaac Hazan <[email protected]>
 L:	[email protected]

drivers/acpi/pmic/Kconfig

@@ -52,7 +52,7 @@ endif	# PMIC_OPREGION
 
 config TPS68470_PMIC_OPREGION
 	bool "ACPI operation region support for TPS68470 PMIC"
-	depends on MFD_TPS68470
+	depends on INTEL_SKL_INT3472
 	help
 	  This config adds ACPI operation region support for TI TPS68470 PMIC.
 	  TPS68470 device is an advanced power management unit that powers

drivers/extcon/extcon-max14577.c

@@ -6,6 +6,7 @@
 // Chanwoo Choi <[email protected]>
 // Krzysztof Kozlowski <[email protected]>
 
+#include <linux/devm-helpers.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
@@ -673,7 +674,10 @@ static int max14577_muic_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, info);
 	mutex_init(&info->mutex);
 
-	INIT_WORK(&info->irq_work, max14577_muic_irq_work);
+	ret = devm_work_autocancel(&pdev->dev, &info->irq_work,
+				   max14577_muic_irq_work);
+	if (ret)
+		return ret;
 
 	switch (max14577->dev_type) {
 	case MAXIM_DEVICE_TYPE_MAX77836:
@@ -766,15 +770,6 @@ static int max14577_muic_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int max14577_muic_remove(struct platform_device *pdev)
-{
-	struct max14577_muic_info *info = platform_get_drvdata(pdev);
-
-	cancel_work_sync(&info->irq_work);
-
-	return 0;
-}
-
 static const struct platform_device_id max14577_muic_id[] = {
 	{ "max14577-muic", MAXIM_DEVICE_TYPE_MAX14577, },
 	{ "max77836-muic", MAXIM_DEVICE_TYPE_MAX77836, },
@@ -797,7 +792,6 @@ static struct platform_driver max14577_muic_driver = {
 		.of_match_table = of_max14577_muic_dt_match,
 	},
 	.probe		= max14577_muic_probe,
-	.remove		= max14577_muic_remove,
 	.id_table	= max14577_muic_id,
 };