Re: [PATCH v20 5/5] arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub

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On Tue 15 Feb 12:55 CST 2022, Greg Kroah-Hartman wrote:

> On Tue, Feb 15, 2022 at 09:54:54AM -0800, Doug Anderson wrote:
> > Hi,
> > 
> > On Tue, Feb 8, 2022 at 11:21 AM Matthias Kaehlcke <mka@xxxxxxxxxxxx> wrote:
> > >
> > > On Tue, Feb 08, 2022 at 11:57:20AM +0100, Greg Kroah-Hartman wrote:
> > > > On Wed, Jan 19, 2022 at 12:43:45PM -0800, Matthias Kaehlcke wrote:
> > > > > Add nodes for the onboard USB hub on trogdor devices. Remove the
> > > > > 'always-on' property from the hub regulator, since the regulator
> > > > > is now managed by the onboard_usb_hub driver.
> > > > >
> > > > > Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> > > > > Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
> > > > > Reviewed-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> > > > > ---
> > > >
> > > > No DT maintainer approval yet?  :(
> > >
> > > Bjorn usually just picks DT changes into the QCOM tree when they are
> > > ready, so I wouldn't interpret anything into the lack of an explicit
> > > Ack.
> > 
> > Right, so the expectation is that this patch wouldn't land through the
> > USB tree but would instead land through the Qualcomm tree, probably a
> > revision after the code lands in the USB tree to avoid dependency
> > problems.
> 
> But our tools pick up the whole series.  I can't just do "i will pick
> patches 1-4 only" easily, and neither can any other maintainer.
> 

Most other maintainers uses -P to selectively pick the patches that
applies to their subsystem. That said, I really do recognize the
inconvenience on your part and the number of patches being sent your
way.

> Why not just get their ack so that I know it can come through the USB
> tree?  That's what normally happens for other changes like this where a
> driver change is required first.
> 

Because while the change looks good I don't think it's fine to take it
through the USB tree - the dts tree typically looks like a shotgun hit
across the dts files. And you and I have already seen several times that
dts changes do conflict when you take some of them in the USB tree.

Unfortunately I see only two ways around this problem, either you start
picking selectively or I manage to convince all contributors that they
must split their series to keep dts changes separate (which isn't a bad
idea in itself).

Regards,
Bjorn



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