Re: [PATCH v7 0/6] iio: new DMABUF based API

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Hi Jonathan,

Le mardi 05 mars 2024 à 10:07 +0000, Jonathan Cameron a écrit :
> On Mon, 04 Mar 2024 08:59:47 +0100
> Nuno Sá <noname.nuno@xxxxxxxxx> wrote:
> 
> > On Sun, 2024-03-03 at 17:42 +0000, Jonathan Cameron wrote:
> > > On Fri, 23 Feb 2024 13:13:58 +0100
> > > Nuno Sa <nuno.sa@xxxxxxxxxx> wrote:
> > >   
> > > > Hi Jonathan, likely you're wondering why I'm sending v7. Well,
> > > > to be
> > > > honest, we're hoping to get this merged this for the 6.9 merge
> > > > window.
> > > > Main reason is because the USB part is already in (so it would
> > > > be nice
> > > > to get the whole thing in). Moreover, the changes asked in v6
> > > > were simple
> > > > (even though I'm not quite sure in one of them) and Paul has no
> > > > access to
> > > > it's laptop so he can't send v7 himself. So he kind of
> > > > said/asked for me to
> > > > do it.  
> > > 
> > > So, we are cutting this very fine. If Linus hints strongly at an
> > > rc8 maybe we
> > > can sneak this in. However, I need an Ack from Vinod for the dma
> > > engine
> > > changes first.
> > > 
> > > Also I'd love a final 'looks ok' comment from DMABUF folk (Ack
> > > even better!)
> > > 
> > > Seems that the other side got resolved in the USB gadget, but
> > > last we heard
> > > form
> > > Daniel and Christian looks to have been back on v5. I'd like them
> > > to confirm
> > > they are fine with the changes made as a result. 
> > >   
> > 
> > I can ask Christian or Daniel for some acks but my feeling (I still
> > need, at
> > some point, to get really familiar with all of this) is that this
> > should be
> > pretty similar to the USB series (from a DMABUF point of view) as
> > they are both
> > importers.
> > 
> > > I've been happy with the IIO parts for a few versions now but my
> > > ability to
> > > review
> > > the DMABUF and DMA engine bits is limited.
> > > 
> > > A realistic path to get this in is rc8 is happening, is all Acks
> > > in place by
> > > Wednesday,
> > > I get apply it and hits Linux-next Thursday, Pull request to Greg
> > > on Saturday
> > > and Greg
> > > is feeling particularly generous to take one on the day he
> > > normally closes his
> > > trees.
> > >   
> > 
> > Well, it looks like we still have a shot. I'll try to see if Vinod
> > is fine with
> > the DMAENGINE stuff.
> > 
> 
> Sadly, looks like rc7 was at the end of a quiet week, so almost
> certain to not
> be an rc8 in the end. Let's aim to get this in at the start of the
> next cycle
> so we can build on it from there.

And it looks like I'll need a V8 for the few things noted by Christian.

Having it in 6.9 would have been great but having it eventually merged
is all that matters - so I'm fine to have it queued for 6.10 instead.

Cheers,
-Paul





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