linux-kernel - Re: (subset) [PATCH v4 00/12] PCI: mvebu: subsystem ids, AER and INTx

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Message-ID: <CAL_JsqJBCyrFpys9xx+TkD4GpW7MvxWr8rXzLARBJ4iOqY_u_g@mail.gmail.com>
Date:   Mon, 28 Feb 2022 11:03:05 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Gregory CLEMENT <gregory.clement@...tlin.com>
Cc:     Pali Rohár <pali@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Marek Behún <kabel@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        PCI <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: (subset) [PATCH v4 00/12] PCI: mvebu: subsystem ids, AER and INTx

On Mon, Feb 28, 2022 at 10:11 AM Gregory CLEMENT
<gregory.clement@...tlin.com> wrote:
>
> Hello,
>
> > + Gregory
> >
> > On Tuesday 22 February 2022 16:15:39 Lorenzo Pieralisi wrote:
> >> On Tue, Feb 22, 2022 at 05:11:43PM +0100, Pali Rohár wrote:
> >> > On Tuesday 22 February 2022 16:06:20 Lorenzo Pieralisi wrote:
> >> > > On Tue, 22 Feb 2022 16:50:18 +0100, Pali Rohár wrote:
> >> > > > This patch series extends pci-bridge-emul.c driver to emulate PCI Subsystem
> >> > > > Vendor ID capability and PCIe extended capabilities. And then implement
> >> > > > in pci-mvebu.c driver support for PCI Subsystem Vendor IDs, PCIe AER
> >> > > > registers, support for legacy INTx interrupts, configuration for X1/X4
> >> > > > mode and usage of new PCI child_ops API.
> >> > > >
> >> > > > Changes in v4:
> >> > > > * rebased on c3bd7dc553eea5a3595ca3aa0adee9bf83622a1f
> >> > > >
> >> > > > [...]
> >> > >
> >> > > I can't apply dts changes, patch 12 should go via the arm-soc tree.
> >> >
> >> > Gregory already wrote about this dts change:
> >> > https://lore.kernel.org/linux-pci/87tud1jwpr.fsf@BL-laptop/
> >> > "So the easier is to let merge it through the PCI subsystem with the
> >> > other patches from this series."
> >> >
> >> > Are there any issues with applying this dts change via pci tree?
> >>
> >> I don't usually take dts changes through the PCI tree since they
> >> can conflict with arm-soc, that's the issue - dts changes should
> >> be managed by platform maintainers.
> >
> > Gregory, could you please take patch 12/12?
> > https://lore.kernel.org/linux-pci/20220222155030.988-13-pali@kernel.org/
> > You have already Acked-by (see above previous link)
>
>
> Applied on mvebu/dt
>
> let's hope the PCI branch will be merged before the ARM branch.

Why does that matter? AIUI, legacy interrupts didn't work before and
you need both dt and kernel to enable. Or am I misled by the commit
messages?

Rob