linux-kernel - Re: [PATCH v1 0/4] PCI: brcmstb: Re-submit reverted patchset

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Date:   Fri, 15 Jul 2022 14:30:27 -0400
From:   Jim Quinlan <james.quinlan@...adcom.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Jim Quinlan <jim2101024@...il.com>,
        "open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS" 
        <linux-pci@...r.kernel.org>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Cyril Brulebois <kibi@...ian.org>,
        "maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" 
        <linux-rpi-kernel@...ts.infradead.org>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v1 0/4] PCI: brcmstb: Re-submit reverted patchset

On Fri, Jul 15, 2022 at 2:27 PM Bjorn Helgaas <helgaas@...nel.org> wrote:
>
> On Fri, Jul 01, 2022 at 12:27:21PM -0400, Jim Quinlan wrote:
> > A submission [1] was made to enable a PCIe root port to turn on regulators
> > for downstream devices.  It was accepted.  Months later, a regression was
> > discovered on an RPi CM4 [2].  The patchset was reverted [3] as the fix
> > came too late in the release cycle.  The regression in question is
> > triggered only when the PCIe RC DT node has no root port subnode, which is
> > a perfectly reasonsable configuration.
> > ...
>
> > Jim Quinlan (4):
> >   PCI: brcmstb: Split brcm_pcie_setup() into two funcs
> >   PCI: brcmstb: Add mechanism to turn on subdev regulators
> >   PCI: brcmstb: oAdd control of subdevice voltage regulators
> >   PCI: brcmstb: Do not turn off WOL regulators on suspend
> >
> >  drivers/pci/controller/pcie-brcmstb.c | 257 +++++++++++++++++++++++---
> >  1 file changed, 227 insertions(+), 30 deletions(-)
>
> I'm assuming there's a v2 coming soonish?  We should see -rc7 this
> weekend and likely a final v5.19 release on July 24, so v5.20 material
> should be tidied up by then.
Hi Bjorn,

Yes, it has been ready for a few days but I am bumping into unrelated
issues while
trying to do suspend/resume tests with the latest upstream.  Hopefully
I will send
it out tonight or this WE.

Regards,
Jim Quinlan
Broadcom STB
>
> Bjorn

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