Align Linux FSYNC functionality to QNX non-safety by
adding two non-safety public interfaces to the FSYNC
Kernel Driver to stop and reconfigure FSYNC groups and
their generators.
Also removes individual nodes exposed for each fsync
group and instead accepts group ID as a parameter to
align with QNX functionality and allow configurability
for default group
The design of this feature is documented in Confluence:
CAMERA/FSYNC Reconfiguration for Crosstraffic Cameras
Jira CAMERASW-22038
Change-Id: I3570cd11f62f807464589677c449e899a49f98fc
Signed-off-by: kevixie <kevixie@nvidia.com>
(cherry picked from commit cca0c2364824b025daf2cabc393878907abe03e4)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3196632
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3202934
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
Reviewed-by: Mohit Ingale <mohiti@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Vincent Chung <vincentc@nvidia.com>
Camera fsync signal Driver provides following features.
- Configures and runs TSC generator to provide fsync signal to the
camera module
- FSYNC signal is programmed as specified in DT for freq and offset
- Start time of fsync signal can be specified or default
value can be used
- Default value used will be 10ms in future
- If start time is provided, value must be provided in TSC ticks unit
- Read DT, if tsc-gen-groups are specified, init & expose node for
each group
- Each generator in group is configured
- IOCTL interface is exposed to accept start time and start the generator
- Sanity check is done to ensure, no generator is part of multiple groups
- Backward compatibility is maintained
JIRA CAMERASW-11902
Bug 3799488
Change-Id: I4f278eb95b8f85edb2d5e7664c9f2dd694437263
Signed-off-by: Mohit Ingale <mohiti@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2898373
Reviewed-by: Bhushan Rayrikar <brayrikar@nvidia.com>
Reviewed-by: Frank Chen <frankc@nvidia.com>
Reviewed-by: Shiva Dubey <sdubey@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
