[V4,0/9] Add chrdev and name query support for GLINK

Message

Arun Kumar Neelakantam July 27, 2018, 12:17 p.m. UTC

Add support for the GLINK rpmsg transport to register a rpmsg chrdev.
This will create the rpmsg_ctrl nodes for userspace clients to open 
rpmsg epts. Create a label property that will help userspace clients
distinguish between the different GLINK links. The rpmsg chrdev 
allocation is done by allocating a local channel which also allocates
an ept. We need to add some guards against edge cases for this chrdev
because it will never fully open.

Changes since v3:
- Change to device_add_group for rpmsg name attr
- Add patch to unregister the rpmsg device
- Add patch to support compat ioctl for rpmsg char driver

Changes since v2:
- Revert change to make glink attribute table const

Changes since v1:
- Add explanation to dt-bindings commit message
- Add patch complete_all the open_req/ack variables
- Add patch to prevent null pointer dereference in chrdev channel release
- Change chrdev allocation to use glink channel allocation
- Change glink attr struct to const

Arun Kumar Neelakantam (2):
  rpmsg: glink: unregister rpmsg device during endpoint destroy
  rpmsg: Add compat ioctl for rpmsg char driver

Chris Lew (7):
  dt-bindings: soc: qcom: Add label for GLINK bindings
  rpmsg: glink: Store edge name for glink device
  rpmsg: glink: Use complete_all for open states
  rpmsg: Guard against null endpoint ops in destroy
  rpmsg: glink: Add support for rpmsg glink chrdev
  rpmsg: glink: Expose rpmsg name attr for glink
  rpmsg: glink: Remove chunk size word align warning

 .../devicetree/bindings/soc/qcom/qcom,glink.txt    |  5 ++
 drivers/rpmsg/qcom_glink_native.c                  | 88 ++++++++++++++++++++--
 drivers/rpmsg/rpmsg_char.c                         |  2 +
 drivers/rpmsg/rpmsg_core.c                         |  2 +-
 4 files changed, 90 insertions(+), 7 deletions(-)