linux-kernel - Re: [PATCH v2] of: address: Work around missing device

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Message-ID: <CAL_Jsq+xBKbYXWipwmZ=ZidorsMUFDw2NpUyxobx4FCTn+8Hmg@mail.gmail.com>
Date:   Wed, 30 Sep 2020 15:34:10 -0500
From:   Rob Herring <robh@...nel.org>
To:     Niklas Söderlund <niklas.soderlund@...natech.se>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Marc Zyngier <maz@...nel.org>, devicetree@...r.kernel.org,
        PCI <linux-pci@...r.kernel.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Heiko Stuebner <heiko@...ech.de>,
        Frank Rowand <frowand.list@...il.com>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Android Kernel Team <kernel-team@...roid.com>,
        Samuel Dionne-Riel <samuel@...nne-riel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] of: address: Work around missing device_type property
 in pcie nodes

On Wed, Sep 30, 2020 at 12:37 PM Niklas Söderlund
<niklas.soderlund@...natech.se> wrote:
>
> Hi Marc,
>
> On 2020-09-30 18:23:21 +0100, Marc Zyngier wrote:
> > Hi Niklas,
> >
> > [+ Samuel]
> >
> > On 2020-09-30 17:27, Niklas Söderlund wrote:
> > > Hi Marc,
> > >
> > > I'm afraid this commit breaks booting my rk3399 device.
> > >
> > > I bisected the problem to this patch merged as [1]. I'm testing on a
> > > Scarlet device and I'm using the unmodified upstream
> > > rk3399-gru-scarlet-inx.dtb for my tests.
> > >
> > > The problem I'm experience is a black screen after the bootloader and
> > > the device is none responsive over the network. I have no serial console
> > > to this device so I'm afraid I can't tell you if there is anything
> > > useful on to aid debugging there.
> > >
> > > If I try to test one commit earlier [2] the system boots as expected and
> > > everything works as it did for me in v5.8 and earlier. I have worked
> > > little with this device and have no clue about what is really on the PCI
> > > buss. But running from [2] I have this info about PCI if it's helpful,
> > > please ask if somethings missing.
> >
> > Please see the thread at [1]. The problem was reported a few weeks back
> > by Samuel, and I was expecting Rob and Lorenzo to push a fix for this.
>
> Thanks for providing a solution.
>
> >
> > Rob, Lorenzo, any update on this?

The fix is in Bjorn's tree[1].

Bjorn, going to send this to Linus before v5.9 is out?

Rob

[1] https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/log/?h=for-linus