user/sven/linux.git/drivers/rpmsg, branch v4.9.15

rpmsg: virtio_rpmsg_bus: fix channel creation

2017-01-26T07:24:44Z

commit 63447646ac657fde00bb658ce21a3431940ae0ad upstream. Since commit 4dffed5b3ac796b ("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: 4dffed5b3ac7 ("rpmsg: Name rpmsg devices based on channel id") Acked-by: Peter Griffin Signed-off-by: Loic Pallardy [bjorn: flipped name and address in device name] Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman

rpmsg: qcom_smd: Correct return value for O_NONBLOCK

2017-01-12T10:39:31Z

commit 1d74e7ed5dc1903ac081574a9b6aa94e7ba4ad45 upstream. 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 Signed-off-by: Greg Kroah-Hartman

rpmsg: smd: fix dependency on QCOM_SMD=n

2016-09-12T14:05:13Z

The ARM allmodconfig build broke with the addition of the SMD rpmsg driver that conflicts with the driver its replaces: WARNING: drivers/soc/qcom/smd: 'qcom_smd_register_edge' exported twice. Previous export was in drivers/rpmsg/qcom_smd.ko WARNING: drivers/soc/qcom/smd: 'qcom_smd_unregister_edge' exported twice. Previous export was in drivers/rpmsg/qcom_smd.ko There is already a dependency that is meant to avoid the broken configuration, but that only prevents the case where at least one of the two are built-in, but not if both are modules. This changes the dependency to "=n", to ensure that the new driver can only be enabled if the other one is completely disabled. Signed-off-by: Arnd Bergmann Fixes: 53e2822e56c7 ("rpmsg: Introduce Qualcomm SMD backend") Signed-off-by: Bjorn Andersson

rpmsg: Introduce Qualcomm SMD backend

2016-09-09T05:15:26Z

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

rpmsg: Allow callback to return errors

2016-09-09T05:15:25Z

Some rpmsg backends support holding on to and redelivering messages upon failed handling of them, so provide a way for the callback to report and error and allow the backends to handle this. Signed-off-by: Bjorn Andersson

rpmsg: Move virtio specifics from public header

2016-09-09T05:15:25Z

Move virtio rpmsg implementation details from the public header file to the virtio rpmsg implementation. Signed-off-by: Bjorn Andersson

rpmsg: virtio: Hide vrp pointer from the public API

2016-09-09T05:15:24Z

Create a container struct virtio_rpmsg_channel around the rpmsg_channel to keep virtio backend information separate from the rpmsg and public API. This makes the public structures independant of virtio. Signed-off-by: Bjorn Andersson

rpmsg: Hide rpmsg indirection tables

2016-09-09T05:15:24Z

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

rpmsg: Split rpmsg core and virtio backend

2016-09-09T05:15:23Z

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

rpmsg: Split off generic tail of create_channel()

2016-09-09T05:15:23Z

The tail of create_channel() is common among all rpmsg backends, so split it off from the virtio specific part to allow it to be extracted to the rpmsg core. Signed-off-by: Bjorn Andersson