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
qcom_smd_send() should return -EAGAIN for non-blocking channels with
insufficient space, so that we can propagate this event to user space.
Fixes: 53e2822e56 ("rpmsg: Introduce Qualcomm SMD backend")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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 <bjorn.andersson@linaro.org>
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 <bjorn.andersson@linaro.org>
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 <sricharan@codeaurora.org>
Cc: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
