linux-toradex.git/drivers/rpmsg/qcom_smd.c, branch v4.15-rc1

rpmsg: qcom_smd: add of_node node to edge device

2017-07-26T16:59:27+00:00

This patch assigns the device node to the edge device, so that the edge
device drivers could read required device tree properties.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Bjorn Andersson

rpmsg: Release rpmsg devices in backends

2017-05-17T17:30:22+00:00

The rpmsg devices are allocated in the backends and as such must be
freed there as well.

Signed-off-by: Bjorn Andersson

rpmsg: smd: Register rpmsg user space interface for edges

2017-01-18T18:43:15+00:00

Create and register a rpmsg device for use with the rpmsg user space
interface, allowing user space to access SMD channels.

Also provide the "rpmsg_name" device attribute to expose the edge name
in sysfs, allowing the user to write udev rules for specific rpmsg
devices and their children.

Signed-off-by: Bjorn Andersson

rpmsg: qcom_smd: Implement endpoint "poll"

2017-01-18T18:43:15+00:00

Add support for polling the status of the write buffer so that user
space can use rpmsg character devices in non-blocking mode.

Signed-off-by: Bjorn Andersson

rpmsg: qcom_smd: Add support for "label" property

2017-01-18T18:43:15+00:00

Add support for the "label" property, used to give the edge a name other
than the one of the DT node. This allows the implementor to provide
consistently named edges when using the rpmsg character device.

Signed-off-by: Bjorn Andersson

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

2016-12-13T16:52:45+00:00

Pull rpmsg updates from Bjorn Andersson:
 "Argument validation in public functions, function stubs for
  COMPILE_TEST-ing clients, preparation for exposing rpmsg endponts
  to user space and minor Qualcomm SMD fixes"

* tag 'rpmsg-v4.10' of git://github.com/andersson/remoteproc:
  dt-binding: soc: qcom: smd: Add label property
  rpmsg: qcom_smd: Correct return value for O_NONBLOCK
  rpmsg: Provide function stubs for API
  rpmsg: Handle invalid parameters in public API
  rpmsg: Support drivers without primary endpoint
  rpmsg: Introduce a driver override mechanism
  rpmsg: smd: Reduce restrictions when finding channel

rpmsg: qcom_smd: Correct return value for O_NONBLOCK

2016-12-08T15:58:05+00:00

qcom_smd_send() should return -EAGAIN for non-blocking channels with
insufficient space, so that we can propagate this event to user space.

Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Bjorn Andersson

rpmsg: smd: Expose edge registration functions

2016-11-15T05:52:14+00:00

The edge registration functions is to be used from a remoteproc driver
to register and unregister an edge as the remote processor comes and
goes.

Signed-off-by: Bjorn Andersson

rpmsg: smd: Reduce restrictions when finding channel

2016-10-31T22:40:40+00:00

SMD channels are created by the remotes in "opening" state, but
sometimes as we close and try to reopen them they linger in closing
state.

Following the search for a matching channel the create_ept() will verify
that the channel is in a suitable state, so we can lax the restrictions
of the search function to work around above difference in behaviour.

Signed-off-by: Bjorn Andersson

rpmsg: Introduce Qualcomm SMD backend

2016-09-09T05:15:26+00:00

This introduces a new rpmsg backend for the Qualcomm SMD system,
allowing communication with various remote processors found in Qualcomm
platforms. The implementation is based on, and intends to replace,
drivers/soc/qcom/smd.c with the necessary adaptions for fitting with the
rpmsg core.

Based on original work by Sricharan R 

Cc: Sricharan R 
Signed-off-by: Bjorn Andersson