Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 105 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-mei b/Documentation/ABI/testing/sysfs-class-mei
new file mode 100644
index 000000000..1db36ddf8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-mei
@@ -0,0 +1,105 @@
+What:		/sys/class/mei/
+Date:		May 2014
+KernelVersion:	3.17
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:
+		The mei/ class sub-directory belongs to mei device class
+
+
+What:		/sys/class/mei/mei<N>/
+Date:		May 2014
+KernelVersion:	3.17
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:
+		The /sys/class/mei/meiN directory is created for
+		each probed mei device
+
+What:		/sys/class/mei/mei<N>/fw_status
+Date:		Nov 2014
+KernelVersion:	3.19
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display fw status registers content
+
+		The ME FW writes its status information into fw status
+		registers for BIOS and OS to monitor fw health.
+
+		The register contains running state, power management
+		state, error codes, and others. The way the registers
+		are decoded depends on PCH or SoC generation.
+		Also number of registers varies between 1 and 6
+		depending on generation.
+
+What:		/sys/class/mei/mei<N>/hbm_ver
+Date:		Aug 2016
+KernelVersion:	4.9
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display the negotiated HBM protocol version.
+
+		The HBM protocol version negotiated
+		between the driver and the device.
+
+What:		/sys/class/mei/mei<N>/hbm_ver_drv
+Date:		Aug 2016
+KernelVersion:	4.9
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display the driver HBM protocol version.
+
+		The HBM protocol version supported by the driver.
+
+What:		/sys/class/mei/mei<N>/tx_queue_limit
+Date:		Jan 2018
+KernelVersion:	4.16
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Configure tx queue limit
+
+		Set maximal number of pending writes
+		per opened session.
+
+What:		/sys/class/mei/mei<N>/fw_ver
+Date:		May 2018
+KernelVersion:	4.18
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display the ME firmware version.
+
+		The version of the platform ME firmware is in format:
+		<platform>:<major>.<minor>.<milestone>.<build_no>.
+		There can be up to three such blocks for different
+		FW components.
+
+What:		/sys/class/mei/mei<N>/dev_state
+Date:		Mar 2019
+KernelVersion:	5.1
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display the ME device state.
+
+		The device state can have following values:
+		INITIALIZING
+		INIT_CLIENTS
+		ENABLED
+		RESETTING
+		DISABLED
+		POWER_DOWN
+		POWER_UP
+
+What:		/sys/class/mei/mei<N>/trc
+Date:		Nov 2019
+KernelVersion:	5.5
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display trc status register content
+
+		The ME FW writes Glitch Detection HW (TRC)
+		status information into trc status register
+		for BIOS and OS to monitor fw health.
+
+What:		/sys/class/mei/mei<N>/kind
+Date:		Jul 2020
+KernelVersion:	5.8
+Contact:	Tomas Winkler <tomas.winkler@intel.com>
+Description:	Display kind of the device
+
+		Generic devices are marked as "mei"
+		while special purpose have their own
+		names.
+		Available options:
+		- mei:  generic mei device.
+		- itouch:  itouch (ipts) mei device.