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For special rpmsg devices without a primary endpoint there is nothing to
announce so don't call the backend announce create function if we didn't
create an endpoint.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This introduces the Qualcomm GLINK protocol driver and DeviceTree-based
modalias support, as well as a number of smaller fixes.
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Merge tag 'rpmsg-v4.13' of git://github.com/andersson/remoteproc
Pull rpmsg updates from Bjorn Andersson:
"This introduces the Qualcomm GLINK protocol driver and
DeviceTree-based modalias support, as well as a number of smaller
fixes"
* tag 'rpmsg-v4.13' of git://github.com/andersson/remoteproc:
rpmsg: Make modalias work for DeviceTree based devices
rpmsg: Drop VIRTUALIZATION dependency from RPMSG_VIRTIO
rpmsg: Don't overwrite release op of rpdev
rpmsg: virtio_rpmsg_bus: cleanup multiple assignment to ops
rpmsg: virtio_rpmsg_bus: fix nameservice address
rpmsg: cleanup incorrect function in dev_err message
rpmsg: virtio_rpmsg_bus: fix announce for devices without endpoint
rpmsg: Introduce Qualcomm RPM glink driver
soc: qcom: Add device tree binding for GLINK RPM
rpmsg: Release rpmsg devices in backends
When rpmsg devices are expected to be matched based on their compatible
the modalias should reflect this, so that module autoloading has a
chance to match and load the appropriate module.
Tested-by: Rob Clark <robdclark@gmail.com>
Reported-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
b0b03b8119 ("rpmsg: Release rpmsg devices in backends") attempted to
correct the ownership of freeing rpmsg device memory. But the patch
is not complete, in that the rpmsg core will overwrite the release op as
the device is being registered.
Fixes: b0b03b8119 ("rpmsg: Release rpmsg devices in backends")
Reported-by: Henri Roosen <henri.roosen@ginzinger.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: <linux-remoteproc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The parameter validation incorrectly returned an ERR_PTR(), which is not
handled by the callers to rpmsg_create_ept(), per the definition NULL
should be returned.
Fixes: 93e9324431 ("rpmsg: Handle invalid parameters in public API")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This allows rpmsg backends to implement polling of the outgoing buffer,
which provides poll support to user space when using the rpmsg character
device.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Since commit 4dffed5b3a ("rpmsg: Name rpmsg devices based on
channel id"), it is no more possible for a firmware to register twice
a service (on different endpoints). rpmsg_register_device function
is failing when calling device_add for the second time as second
device has the same name as first one already register.
It is because name is based only on service name and so is not more
unique. Previously name was unique thanks to the use of rpmsg_dev_index.
This patch adds destination and source endpoint numbers device name to
create an unique identifier.
Fixes: 4dffed5b3a ("rpmsg: Name rpmsg devices based on channel id")
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
[bjorn: flipped name and address in device name]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
There are two cases of possible uninitialized pointer usage in the API,
either the parameters themselves are invalid or we're trying to jump to
functions not required to be implemented by all backends.
Suggested-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Some types of rpmsg drivers does not have a primary endpoint to tie
their existence upon, but wishes to create and destroy endpoints
dynamically, e.g. based on user interactions.
Allow rpmsg drivers to omit a driver callback to signal this case and
make the probe path not create a primary endpoint in this case.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Similar to other subsystems it's useful to provide a mechanism to force
a specific driver match on a device, so introduce this.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Move the device and endpoint indirection tables to the rpmsg internal
header file, to hide them from the public API.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Extract the generic rpmsg core functionality from the virtio rpmsg
implementation, splitting the implementation in a rpmsg core and a
virtio backend.
Based on initial work by Sricharan R <sricharan@codeaurora.org>
Cc: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Move the rpmsg_send() and rpmsg_destroy_ept() interface to the rpmsg
core, so that we eventually can hide the rpmsg_endpoint ops from the
public API.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Extract the now indirect rpmsg_create_ept() interface to a separate
file and start building up a rpmsg core.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
