Re: [PATCH 5/5] rcar-vin: Do not unregister video device when a subdevice is unbound

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Hello!

On 11.06.2020 2:05, Niklas Söderlund wrote:

If the v4l2-async notifier have once been complete and the video
device(s) have been register, do not unregister them if one subdevice is

   Registered.

unbound. Depending on which subdevice is unbound other parts of the
pipeline could still be functional. For example if one of multiple
sensors connected to a CSI-2 transmitter is unbound other sensors in
that pipeline are still useable.

   Usable.

This problem is extra critical for R-Car VIN which registers two
independent CSI-2 receivers in the same media graph as they can both be
used by the same dma-engines. If one of the CSI-2 receivers are unbound

   DMA engines, maybe?

the other CSI-2 receiver pipeline is still fully functional.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
[...]

MBR, Sergei



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