linux-kernel - Re: linux-next: manual merge of the usb tree with the arm-soc tree

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Date:   Thu, 17 Jun 2021 12:30:28 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>, Greg KH <greg@...ah.com>,
        Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>,
        ARM <linux-arm-kernel@...ts.infradead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: manual merge of the usb tree with the arm-soc tree

On Thu 17 Jun 11:34 CDT 2021, Matthias Kaehlcke wrote:

> On Thu, Jun 17, 2021 at 02:43:46PM +1000, Stephen Rothwell wrote:
> > Hi all,
> > 
> > Today's linux-next merge of the usb tree got conflicts in:
> > 
> >   arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts
> >   arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts
> > 
> > between commit:
> > 
> >   39441f73d91a ("arm64: dts: qcom: sc7180: lazor: Simplify disabling of charger thermal zone")
> > 
> > from the arm-soc tree and commit:
> > 
> >   1da8116eb0c5 ("arm64: dts: qcom: sc7180-trogdor: Add nodes for onboard USB hub")
> > 
> > from the usb tree.
> > 
> > I fixed it up (see below) and can carry the fix as necessary. This
> > is now fixed as far as linux-next is concerned, but any non trivial
> > conflicts should be mentioned to your upstream maintainer when your tree
> > is submitted for merging.  You may also want to consider cooperating
> > with the maintainer of the conflicting tree to minimise any particularly
> > complex conflicts.
> 
> Thanks Stephen for fixing this up for -next!
> 
> One option would be to revert 1da8116eb0c5 ("arm64: dts: qcom: sc7180-trogdor:
> Add nodes for onboard USB hub") from usb-next and land it through the qcom/arm-soc
> tree with the rest of the SC7180 device tree patches.
> 
> Greg/Bjorn, does the above sound like a suitable solution to you or do you
> think it would be better to deal with the conflict in a different way?

Having the dts patch go through the Qualcomm tree instead would resolve
the issue.

I wasn't aware that the driver code had landed yet, so I haven't merged
the DT patch, but can do so and include it in the pull request that I'm
preparing for 5.14.

Greg, does that sound reasonable to you?

Regards,
Bjorn