kernel/linux.git/drivers/rpmsg/rpmsg_core.c, branch v4.14.286

Revert "rpmsg: core: add support to power domains for devices"

2018-09-29T10:06:04+00:00

This reverts commit 1ed3a93072307265d6385031b72929a904b50f87 which is commit fe782affd0f440a4e60e2cc81b8f2eccb2923113 upstream Rafael reports that this patch causes problems: > -rc2 looks good. There is a problem on dragonboard during boot that was > introduced in v4.14.71 that I didn't notice last week. We'll bisect it > and report back later this week. dragonboard on the other branches (4.9, > 4.18, mainline) looks fine. As Dan pointed out, during validation, we have bisected this issue on a dragonboard 410c (can't find root device) to the following commit for v4.14: [1ed3a9307230] rpmsg: core: add support to power domains for devices There is an on-going discussion on "[PATCH] rpmsg: core: add support to power domains for devices" about this patch having other dependencies and breaking something else on v4.14 as well. so drop it. Reported-by: Rafael Tinoco Cc: Srinivas Kandagatla Cc: Bjorn Andersson Cc: Sasha Levin Signed-off-by: Greg Kroah-Hartman

rpmsg: core: add support to power domains for devices

2018-09-19T20:43:41+00:00

[ Upstream commit fe782affd0f440a4e60e2cc81b8f2eccb2923113 ] Some of the rpmsg devices need to switch on power domains to communicate with remote processor. For example on Qualcomm DB820c platform LPASS power domain needs to switched on for any kind of audio services. This patch adds the missing power domain support in rpmsg core. Without this patch attempting to play audio via QDSP on DB820c would reboot the system. Signed-off-by: Srinivas Kandagatla Signed-off-by: Bjorn Andersson Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

Merge tag 'rpmsg-v4.13' of git://github.com/andersson/remoteproc

2017-07-06T22:38:31+00:00

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

rpmsg: Make modalias work for DeviceTree based devices

2017-06-29T04:49:24+00:00

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 Reported-by: Rob Clark Signed-off-by: Bjorn Andersson

rpmsg: Don't overwrite release op of rpdev

2017-06-27T05:39:56+00:00

b0b03b811963 ("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: b0b03b811963 ("rpmsg: Release rpmsg devices in backends") Reported-by: Henri Roosen Signed-off-by: Bjorn Andersson

rpmsg: use dev_groups and not dev_attrs for bus_type

2017-06-09T09:00:46+00:00

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 Acked-by: Bjorn Andersson Cc: Signed-off-by: Greg Kroah-Hartman

rpmsg: rpmsg_create_ept() returns NULL on error

2017-02-13T08:52:54+00:00

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: 93e9324431c9 ("rpmsg: Handle invalid parameters in public API") Reported-by: Dan Carpenter Signed-off-by: Bjorn Andersson

rpmsg: Introduce "poll" to endpoint ops

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

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

rpmsg: virtio_rpmsg_bus: fix channel creation

2016-12-30T11:12:11+00:00

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

rpmsg: Handle invalid parameters in public API

2016-10-31T22:44:57+00:00

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 Signed-off-by: Bjorn Andersson