Re: [PATCH v5 0/4] Add support for iMX8MQ Display Controller Subsystem

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Am Freitag, den 17.07.2020, 12:45 +0300 schrieb Laurentiu Palcu:
> Hi Lukas and Daniel,
> 
> On Fri, Jul 17, 2020 at 11:27:58AM +0200, Daniel Vetter wrote:
> > On Fri, Jul 17, 2020 at 11:12:39AM +0200, Lucas Stach wrote:
> > > Am Freitag, den 17.07.2020, 10:59 +0200 schrieb Daniel Vetter:
> > > > On Fri, Jul 17, 2020 at 10:18 AM Lucas Stach <l.stach@xxxxxxxxxxxxxx> wrote:
> > > > > Hi Laurentiu,
> > > > > 
> > > > > Am Donnerstag, den 09.07.2020, 19:47 +0300 schrieb Laurentiu Palcu:
> > > > > > From: Laurentiu Palcu <laurentiu.palcu@xxxxxxx>
> > > > > > 
> > > > > > Hi,
> > > > > > 
> > > > > > This patchset adds initial DCSS support for iMX8MQ chip. Initial support
> > > > > > includes only graphics plane support (no video planes), no HDR10 capabilities,
> > > > > > no graphics decompression (only linear, tiled and super-tiled buffers allowed).
> > > > > > 
> > > > > > Support for the rest of the features will be added incrementally, in subsequent
> > > > > > patches.
> > > > > > 
> > > > > > The patchset was tested with both HDP driver (in the downstream tree) and the upstream
> > > > > > MIPI-DSI driver (with a couple of patches on top, to make it work correctly with DCSS).
> > > > > 
> > > > > I think the series (minus 3/5 and minor correction to the DT binding)
> > > > > is fine to go in now. So just some formal questions: are you going to
> > > > > maintain this driver in upstream? If so we should add a MAINTAINERS
> > > > > entry to that effect. I can offer to act as a reviewer in this case.
> 
> I can maintain the DCSS driver, sure, and the more reviewers the better.
> Thanks for helping out with this. Should I send a v6 then with a patch
> for MAINTAINERS?
> 
> > > > > How do you intend to merge this? IMO pushing this through drm-misc
> > > > > seems like the right thing to do. If you agree I can help you get this
> > > > > applied. If you are going to maintain the driver on your own, I think
> > > > > you should then apply for commit rights to drm-misc.
> > > > 
> > > > drm/imx isn't listed yet as under the drm-misc umbrella, maybe we
> > > > should put the entire collective of imx drivers under drm-misc? Or
> > > > maybe it's just an oversight that the git repo isn't specified in the
> > > > MAINTAINERS entry. Also maybe we should add the pengutronix kernel
> > > > team alias there too?
> > > 
> > > drm/imx was exclusively the IPUv3 up until now, which is in fact
> > > maintained outside of drm-misc in its own git tree. This has worked
> > > quite well in the past so even though IPUv3 doesn't see a lot of churn
> > > these days the motivation to change anything to this workflow is quite
> > > low. And yes, the git tree is missing from the MAINTAINERS entry.
> > > 
> > > For the DCSS driver, if it's going to be maintained by NXP, I figured
> > > it might be easier for Laurentiu to push things into drm-misc than set
> > > up a separate public git tree. But IMHO that's fully up to him to
> > > decide.
> > 
> > /me puts on maintainer hat
> > 
> > Much prefer drm-misc over random people playing maintainer and fumbling
> > it. I think the reasonable options are either in the current imx tree, or
> > drm-misc. Standalone tree for these small drivers just doesn't make much
> > sense.
> 
> I don't have anything against either method, though I have to agree I
> like things to be simple. Going through drm-misc sounds simple enough to me. :)
> However, since there is going to be more activity in the DRM IMX area in
> the future, reviving the drm/imx tree, and push all IMX related stuff
> through drm/imx, could make sense as well.

I think drm-misc is the right place then.

Please send a v6 with the following changes:
- drop the component framework patch
- drop the i.MX8MQ DT patch, this should go through Shawn's imx tree
after the driver and binding has landed in drm-misc
- you can add my Reviewed-by to the whole series or I can add it when
applying
- add a MAINTAINERS entry, please add me as a reviewer if you don't
mind

I can push this initial series into drm-misc until you've got your own
commit rights.

Regards,
Lucas

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