Re: [GIT PULL] PCI: dt: Remove magic numbers for legacy PCI IRQ interrupts

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On Wed, Dec 11, 2019 at 10:59 AM Olof Johansson <olof@xxxxxxxxx> wrote:
>
> On Wed, Dec 11, 2019 at 04:18:08PM +0000, Andrew Murray wrote:
> > Hi Arnd,
> >
> > Please consider this pull request.
> >
> > The following changes since commit e42617b825f8073569da76dc4510bfa019b1c35a:
> >
> >   Linux 5.5-rc1 (2019-12-08 14:57:55 -0800)
> >
> > are available in the Git repository at:
> >
> >   git://linux-arm.org/linux-am.git tags/pci-dt-intx-defines-5.5-rc1
> >
> > for you to fetch changes up to d50e85b9ad3d4287ab3c5108b7b36ad4fd50e5b4:
> >
> >   dt-bindings: PCI: Use IRQ flags for legacy PCI IRQ interrupts (2019-12-11 16:05:55 +0000)
> >
> > ----------------------------------------------------------------
> > PCI: dt: Remove magic numbers for legacy PCI IRQ interrupts
> >
> > PCI devices can trigger interrupts via 4 physical/virtual lines known
> > as INTA, INTB, INTC or INTD. Due to interrupt swizzling it is often
> > required to describe the interrupt mapping in the device tree. Let's
> > avoid the existing magic numbers and replace them with a #define to
> > improve clarity.
> >
> > This is based on v5.5-rc1. As this series covers multiple architectures
> > and updates include/dt-bindings it was felt that it may be more
> > convenient to merge in one go.
>
> That's a pretty high-effort way of doing this, with potential for messy
> conflicts.
>
> The standard way of making sweeping changes across the tree is usually to
> get the new interface/definition added in one release, and then moving
> usage over through the various maintainers in the release after since
> the define is then in the base tree for everybody. Would you mind using
> the same approach here, please? Especially since this is mostly a cleanup.

Yeah, it's already going to conflict with some PCI controller schema
conversions pending.

I'm happy to apply the header for 5.5-rc2. Then send the dts changes
to Arnd/Olof and the binding changes to Lorenzo.

Rob




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