Re: [REGRESSION] breakage in sun6i-csi media api

[Paul Kocialkowski <paul.kocialkowski@bootlin.com>]

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Hi Martijn,

On Thu 01 Jun 23, 23:19, Martijn Braam wrote:
> It seems like this commit:
> 
> media: sun6i-csi: Add bridge v4l2 subdev with port management
> 
> Has changed the way the media pipeline on a64 devices, in my case the PINE64
> PinePhone works. Since this is an API towards userspace and there's active
> applications that use it I think this counts as a regression.

Do you have more details on what changed specifically?

The commit added a bridge subdev in addition to the video node, which is
generally a better description of the CSI hardware and also a necessity
to support the ISP data flow.

Maybe your userspace application is not configuring the bridge media block with
the right format, which results in a mismatch?

Some work was started to achieve automatic format propagation, perhaps it
would be enough to solve your issue.

Cheers,

Paul

> #regzbot introduced: 0d2b746b1bef73de62d2d311e594a7ffed4ca43
> 
> Greetings,
> Martijn Braam

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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