Merge branch 'for-next' of https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git

4 files changed, 149 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/amdpmf-interface b/Documentation/ABI/testing/amdpmf-interface
new file mode 100644
index 000000000000..625f90a013d0
--- /dev/null
+++ b/Documentation/ABI/testing/amdpmf-interface
@@ -0,0 +1,73 @@
+What:		/dev/amdpmf_interface
+Date:		June 2026
+KernelVersion:	7.2
+Contact:	Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+Description:
+		The AMD Platform Management Framework (PMF) util layer exposes a
+		minimal user-space interface via a character device for feature
+		discovery and metrics monitoring.
+
+		When CONFIG_AMD_PMF_UTIL_SUPPORT is enabled, the driver creates
+		a character device:
+
+		======================
+		/dev/amdpmf_interface
+		======================
+
+		The interface supports a single ioctl:
+
+		============================ =======================================
+		IOCTL			     Usage
+		IOCTL_AMD_PMF_POPULATE_DATA  User passes a struct amd_pmf_info with
+					     the size field set to sizeof(struct
+					     amd_pmf_info). The driver returns all
+					     available metrics and feature status
+					     in the structure.
+		============================ =======================================
+
+		struct amd_pmf_info layout:
+
+		======================= ========== ================================
+		Field			Type	   Description
+		size			__u64	   Structure size for versioning
+		features_supported	__u32	   Bitmask of supported features
+		platform_type		__u32	   Platform form factor orientation
+		power_source		__u32	   AC/DC power source
+		laptop_placement	__u32	   Device placement state
+		lid_state		__u32	   Lid open/closed status
+		user_presence		__u32	   User presence detection
+		slider_position		__u32	   Current power slider position
+		skin_temp		__s32	   Skin temperature (centidegrees)
+		gfx_busy		__u32	   Graphics workload percentage
+		ambient_light		__s32	   Ambient light sensor reading
+		avg_c0_residency	__u32	   Average C0 state residency
+		max_c0_residency	__u32	   Maximum C0 state residency
+		socket_power		__u32	   Socket power consumption
+		bios_input[10]		__u32	   Custom BIOS input parameters
+		bios_output[10]		__u32	   Custom BIOS output parameters
+		======================= ========== ================================
+
+		Feature Support Flags (features_supported bitmask):
+
+		=====================================    ====  =============================
+		Flag				         Bit   Description
+		AMD_PMF_FEAT_AUTO_MODE		         0     Auto Mode feature support
+		AMD_PMF_FEAT_STATIC_POWER_SLIDER         1     Static Power Slider support
+		AMD_PMF_FEAT_POLICY_BUILDER	         2     Policy Builder (Smart PC)
+		AMD_PMF_FEAT_DYNAMIC_POWER_SLIDER_AC     3     Dynamic slider on AC
+		AMD_PMF_FEAT_DYNAMIC_POWER_SLIDER_DC     4     Dynamic slider on DC
+		=====================================    ====  =============================
+
+		Return codes:
+
+		============= ============================================================
+		Return code   Description
+		0	      Success
+		EINVAL	      Invalid size or parameter
+		EFAULT	      copy_to_user/copy_from_user failures
+		ENODEV	      PMF device not available
+		ENOTTY	      Unknown ioctl command
+		============= ============================================================
+
+		User-space tools integrating with AMD PMF to discover capabilities and
+		monitor real-time metrics for thermal and power management validation.
diff --git a/Documentation/ABI/testing/sysfs-driver-uniwill-laptop b/Documentation/ABI/testing/sysfs-driver-uniwill-laptop
index 2397c65c969a..943f92c6b561 100644
--- a/Documentation/ABI/testing/sysfs-driver-uniwill-laptop
+++ b/Documentation/ABI/testing/sysfs-driver-uniwill-laptop
@@ -78,3 +78,28 @@ Description:
 
 		Reading this file returns the profile names with the currently active one in
 		brackets.
+
+What:		/sys/bus/platform/devices/INOU0000:XX/ac_auto_boot
+Date:		March 2026
+KernelVersion:	7.1
+Contact:	Armin Wolf <W_Armin@gmx.de>
+Description:
+		Allows userspace applications to configure if the device should boot automatically
+		when being connected to a power source. Writing "1"/"0" into this file
+		enables/disables this functionality. Enabling both AC auto boot and USB powershare
+		at the same time is not supported.
+
+		Reading this file returns the current status of the AC auto boot functionality.
+
+What:		/sys/bus/platform/devices/INOU0000:XX/usb_powershare_high
+Date:		March 2026
+KernelVersion:	7.1
+Contact:	Armin Wolf <W_Armin@gmx.de>
+Description:
+		Allows userspace applications to configure if the device should continue to provide
+		power via the USB ports when hibernating or powered off. Might also increase the
+		power budget available to USB ports on some devices. Writing "1"/"0" into this
+		file enables/disables this functionality. Enabling both USB powershare and AC auto
+		boot at the same time is not supported.
+
+		Reading this file returns the current status of the USB powershare functionality.
diff --git a/Documentation/admin-guide/laptops/thinkpad-acpi.rst b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
index f874db31801d..db4588af0278 100644
--- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst
+++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
@@ -1543,6 +1543,30 @@ Values:
 
 	This setting can also be toggled via the Fn+doubletap hotkey.
 
+USB-C Security
+--------------
+
+sysfs: usb_c_security
+
+Reports the current state of the USB-C Security (Restricted Mode) feature
+on supported ThinkPad systems. When enabled, USB-C data connections are
+disabled while power delivery is preserved.
+
+The available command is::
+
+        cat /sys/devices/platform/thinkpad_acpi/usb_c_security
+
+Values:
+
+	* ``enabled``  - USB-C data connections are currently blocked
+	* ``disabled`` - USB-C data connections are currently allowed
+
+The attribute is read-only. The USB-C Security state can only be toggled
+via the Fn+U followed by Fn+S hotkey chord.
+
+The sysfs attribute is not created on platforms that do not support this
+feature.
+
 Auxmac
 ------
 
diff --git a/Documentation/admin-guide/laptops/uniwill-laptop.rst b/Documentation/admin-guide/laptops/uniwill-laptop.rst
index 24b41dbab886..be50b45b82ef 100644
--- a/Documentation/admin-guide/laptops/uniwill-laptop.rst
+++ b/Documentation/admin-guide/laptops/uniwill-laptop.rst
@@ -77,6 +77,19 @@ LED class device. The default name of this LED class device is ``uniwill:multico
 See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details on how to control the various
 animation modes of the lightbar.
 
+Keyboard Backlight
+------------------
+
+The ``uniwill-laptop`` driver supports controlling the keyboard backlight using the standard
+LED class interface. The default name of this LED class device is ``uniwill:white:kbd_backlight``
+when the keyboard backlight supports only a single color, or ``uniwill:multicolor:kbd_backlight``
+when the keyboard backlight supports RGB colors. The maximum intensity for each color channel
+in RGB mode is 50.
+
+Keep in mind that due to hardware design choices, the driver does not support the RGB value
+``0x000000`` (black), instead it will fall back to ``0x010101`` (faint white). In order to
+disable the keyboard backlight, the standard LED brightness setting has to be used instead.
+
 Configurable TGP
 ----------------
 
@@ -85,6 +98,20 @@ allow it.
 
 See Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.
 
+AC Auto Boot
+------------
+
+The ``uniwill-laptop`` driver allows the user to configure if the system should automatically
+boot when being connected to a power source, see
+Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.
+
+USB Powershare
+--------------
+
+The ``uniwill-laptop`` driver allows the user to configure if the system should continue to
+provide power via the USB ports when hibernating or powered off, see
+Documentation/ABI/testing/sysfs-driver-uniwill-laptop for details.
+
 References
 ==========