Merge tag 'rproc-v4.10' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:

 - introduce remoteproc "subdevice" support, which allows remoteproc
   driver to associate devices to the "running" state of the remoteproc,
   allowing devices to be probed and removed as the remote processor is
   booted, shut down or recovering from a crash.

 - handling of virtio device resources was improved, vring memory is now
   allocated as part of other memory allocation. This ensures that all
   vrings for all virtio devices are allocated before we boot the remote
   processor.

 - the debugfs mechanism for starting and stopping remoteproc instances
   was replaced with a sysfs interface, also providing a mechanism for
   specifying firmware to use by the instance. This allows user space to
   load and boot use case specific firmware on remote processors.

 - new drivers for the ST Slimcore and Qualcomm Hexagon DSP as well as
   removal of the unused StE modem loader.

 - finally support for crash recovery in the Qualcomm Wirelss subsystem
   (used for WiFi/BT/FM on a number of platforms) and a number of bug
   fixes and cleanups

* tag 'rproc-v4.10' of git://github.com/andersson/remoteproc: (49 commits)
  remoteproc: qcom_adsp_pil: select qcom_scm
  remoteproc: Drop wait in __rproc_boot()
  remoteproc/ste: Delete unused driver
  remoteproc: Remove "experimental" warning
  remoteproc: qcom_adsp_pil: select qcom_scm
  dt-binding: soc: qcom: smd: Add label property
  remoteproc: qcom: mdt_loader: add include for sizes
  remoteproc: Update last rproc_put users to rproc_free
  remoteproc: qcom: adsp: Add missing MODULE_DEVICE_TABLE
  remoteproc: wcnss-pil: add QCOM_SMD dependency
  dmaengine: st_fdma: Revert: "Revert: Update st_fdma to 'depends on REMOTEPROC'"
  remoteproc: Add support for xo clock
  remoteproc: adsp-pil: fix recursive dependency
  remoteproc: Introduce Qualcomm ADSP PIL
  dt-binding: remoteproc: Introduce ADSP loader binding
  remoteproc: qcom_wcnss: Fix circular module dependency
  remoteproc: Merge table_ptr and cached_table pointers
  remoteproc: Remove custom vdev handler list
  remoteproc: Update max_notifyid as we allocate vrings
  remoteproc: Decouple vdev resources and devices
  ...

1 files changed, 50 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc
new file mode 100644
index 000000000000..d188afebc8ba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-remoteproc
@@ -0,0 +1,50 @@
+What:		/sys/class/remoteproc/.../firmware
+Date:		October 2016
+Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Description:	Remote processor firmware
+
+		Reports the name of the firmware currently loaded to the
+		remote processor.
+
+		To change the running firmware, ensure the remote processor is
+		stopped (using /sys/class/remoteproc/.../state) and write a new filename.
+
+What:		/sys/class/remoteproc/.../state
+Date:		October 2016
+Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Description:	Remote processor state
+
+		Reports the state of the remote processor, which will be one of:
+
+		"offline"
+		"suspended"
+		"running"
+		"crashed"
+		"invalid"
+
+		"offline" means the remote processor is powered off.
+
+		"suspended" means that the remote processor is suspended and
+		must be woken to receive messages.
+
+		"running" is the normal state of an available remote processor
+
+		"crashed" indicates that a problem/crash has been detected on
+		the remote processor.
+
+		"invalid" is returned if the remote processor is in an
+		unknown state.
+
+		Writing this file controls the state of the remote processor.
+		The following states can be written:
+
+		"start"
+		"stop"
+
+		Writing "start" will attempt to start the processor running the
+		firmware indicated by, or written to,
+		/sys/class/remoteproc/.../firmware. The remote processor should
+		transition to "running" state.
+
+		Writing "stop" will attempt to halt the remote processor and
+		return it to the "offline" state.