Re: v4l2-async: regression due to endpoint matching

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On Fri, Apr 28, 2023 at 08:43:21AM +0200, Jacopo Mondi wrote:
> Hi Alexander
> 
> On Fri, Apr 28, 2023 at 08:33:30AM +0200, Alexander Stein wrote:
> > Hi Jacopo,
> >
> > Am Freitag, 28. April 2023, 08:31:54 CEST schrieb Jacopo Mondi:
> > > Hi Alexander
> > >
> > > On Fri, Apr 28, 2023 at 08:24:22AM +0200, Alexander Stein wrote:
> > > > Hi Jacopo,
> > > >
> > > > Am Donnerstag, 27. April 2023, 18:01:38 CEST schrieb Jacopo Mondi:
> > > > > Hi Alexander
> > > > >
> > > > > On Thu, Apr 27, 2023 at 04:40:46PM +0200, Alexander Stein wrote:
> > > > > > Hi all,
> > > > > >
> > > > > > I have a setup on my TQMa6x (imx6q-mba6a.dts) with a tc358743 attached
> > > > > > to
> > > > > > the MIPI CSI input.
> > > > > > I noticed that since commit 1f391df44607 ("media: v4l2-async: Use
> > > > > > endpoints in __v4l2_async_nf_add_fwnode_remote()") the async subdevice
> > > > > > probing does not work anymore. If I revert that, it is working again,
> > > > > > even on next-20230425.
> > > > >
> > > > > A similar issue has been discussed at
> > > > > https://www.spinics.net/lists/linux-media/msg223351.html
> > > > >
> > > > > Unfortunately there was no conclusion as far as I can tell if not that
> > > > > imx6 is now broken
> > > >
> > > > Thanks for the link, seems like a non-trivial thing :(
> > > >
> > > > From a glimpse, this series seems to deal with multiple async subdevs:
> > > > https://lore.kernel.org/all/20230330115853.1628216-1-sakari.ailus@xxxxxxxx
> > > > tel.com/
> > > >
> > > > So imx-media-csi should be adjusted as well, no?
> > >
> > > It would really be helpful if you can give that series a spin on imx6
> > > if you already have a test setup.
> >
> > I tried, but it failed to apply on my current development tree. What base does
> > this series apply to? Is there also a repository available I can fetch from?
> >
> 
> Sakari could tell, for me it applied on v6.3-rc2 but I recall I had to
> manually fix a few things.

Don't try v1, it won't work. I missed some object relation changes in the
linked lists. I'll post v2, hopefully some time next week, to address these
issues.

-- 
Regards,

Sakari Ailus



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