Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver pull request for 5.4-rc1.

  As has been happening in previous releases, more and more individual
  driver subsystem trees are ending up in here. Now if that is good or
  bad I can't tell, but hopefully it makes your life easier as it's more
  of an aggregation of trees together to one merge point for you.

  Anyway, lots of stuff in here:
     - habanalabs driver updates
     - thunderbolt driver updates
     - misc driver updates
     - coresight and intel_th hwtracing driver updates
     - fpga driver updates
     - extcon driver updates
     - some dma driver updates
     - char driver updates
     - android binder driver updates
     - nvmem driver updates
     - phy driver updates
     - parport driver fixes
     - pcmcia driver fix
     - uio driver updates
     - w1 driver updates
     - configfs fixes
     - other assorted driver updates

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits)
  misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation
  habanalabs: correctly cast variable to __le32
  habanalabs: show correct id in error print
  habanalabs: stop using the acronym KMD
  habanalabs: display card name as sensors header
  habanalabs: add uapi to retrieve aggregate H/W events
  habanalabs: add uapi to retrieve device utilization
  habanalabs: Make the Coresight timestamp perpetual
  habanalabs: explicitly set the queue-id enumerated numbers
  habanalabs: print to kernel log when reset is finished
  habanalabs: replace __le32_to_cpu with le32_to_cpu
  habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64
  habanalabs: Handle HW_IP_INFO if device disabled or in reset
  habanalabs: Expose devices after initialization is done
  habanalabs: improve security in Debug IOCTL
  habanalabs: use default structure for user input in Debug IOCTL
  habanalabs: Add descriptive name to PSOC app status register
  habanalabs: Add descriptive names to PSOC scratch-pad registers
  habanalabs: create two char devices per ASIC
  habanalabs: change device_setup_cdev() to be more generic
  ...

1 files changed, 128 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu b/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
new file mode 100644
index 000000000000..ae9af984471a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
@@ -0,0 +1,128 @@
+	Intel Stratix10 Remote System Update (RSU) device attributes
+
+What:		/sys/devices/platform/stratix10-rsu.0/current_image
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the address in flash of currently running image.
+
+What:		/sys/devices/platform/stratix10-rsu.0/fail_image
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the address in flash of failed image.
+
+What:		/sys/devices/platform/stratix10-rsu.0/state
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the state of RSU system.
+		The state field has two parts: major error code in
+		upper 16 bits and minor error code in lower 16 bits.
+
+		b[15:0]
+			Currently used only when major error is 0xF006
+			(CPU watchdog timeout), in which case the minor
+			error code is the value reported by CPU to
+			firmware through the RSU notify command before
+			the watchdog timeout occurs.
+
+		b[31:16]
+			0xF001	bitstream error
+			0xF002	hardware access failure
+			0xF003	bitstream corruption
+			0xF004	internal error
+			0xF005	device error
+			0xF006	CPU watchdog timeout
+			0xF007	internal unknown error
+
+What:		/sys/devices/platform/stratix10-rsu.0/version
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the version number of RSU firmware. 19.3 or late
+		version includes information about the firmware which
+		reported the error.
+
+		pre 19.3:
+			b[31:0]
+				0x0	version number
+
+		19.3 or late:
+			b[15:0]
+				0x1	version number
+			b[31:16]
+				0x0	no error
+				0x0DCF	Decision CMF error
+				0x0ACF	Application CMF error
+
+What:		/sys/devices/platform/stratix10-rsu.0/error_location
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the error offset inside the image that failed.
+
+What:		/sys/devices/platform/stratix10-rsu.0/error_details
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) error code.
+
+What:		/sys/devices/platform/stratix10-rsu.0/retry_counter
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(RO) the current image's retry counter, which is used by
+		user to know how many times the images is still allowed
+		to reload itself before giving up and starting RSU
+		fail-over flow.
+
+What:		/sys/devices/platform/stratix10-rsu.0/reboot_image
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(WO) the address in flash of image to be loaded on next
+		reboot command.
+
+What:		/sys/devices/platform/stratix10-rsu.0/notify
+Date:		August 2019
+KernelVersion:	5.4
+Contact:	Richard Gong <richard.gong@linux.intel.com>
+Description:
+		(WO) client to notify firmware with different actions.
+
+		b[15:0]
+			inform firmware the current software execution
+			stage.
+			0	the first stage bootloader didn't run or
+				didn't reach the point of launching second
+				stage bootloader.
+			1	failed in second bootloader or didn't get
+				to the point of launching the operating
+				system.
+			2	both first and second stage bootloader ran
+				and the operating system launch was
+				attempted.
+
+		b[16]
+			1	firmware to reset current image retry
+				counter.
+			0	no action.
+
+		b[17]
+			1	firmware to clear RSU log
+			0	no action.
+
+		b[18]
+			this is negative logic
+			1	no action
+			0	firmware record the notify code defined
+				in b[15:0].