linux-kernel - RE: [PATCHv5 0/6] PCI: layerscape: Add power management support

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Message-ID: <AS8PR04MB89468279B5E59F5CA33BEBDC8F999@AS8PR04MB8946.eurprd04.prod.outlook.com>
Date:   Tue, 16 Nov 2021 23:52:58 +0000
From:   Leo Li <leoyang.li@....com>
To:     Bjorn Helgaas <helgaas@...nel.org>
CC:     "Z.Q. Hou" <zhiqiang.hou@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, lkml <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Shawn Guo <shawnguo@...nel.org>,
        "gustavo.pimentel@...opsys.com" <gustavo.pimentel@...opsys.com>,
        "M.H. Lian" <minghuan.lian@....com>,
        Mingkai Hu <mingkai.hu@....com>, Roy Zang <roy.zang@....com>
Subject: RE: [PATCHv5 0/6] PCI: layerscape: Add power management support



> -----Original Message-----
> From: Bjorn Helgaas <helgaas@...nel.org>
> Sent: Thursday, November 11, 2021 3:45 PM
> To: Leo Li <leoyang.li@....com>
> Cc: Z.Q. Hou <zhiqiang.hou@....com>; linux-pci@...r.kernel.org; open
> list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
> <devicetree@...r.kernel.org>; lkml <linux-kernel@...r.kernel.org>;
> moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE <linux-arm-
> kernel@...ts.infradead.org>; Lorenzo Pieralisi <lorenzo.pieralisi@....com>;
> Rob Herring <robh+dt@...nel.org>; Bjorn Helgaas <bhelgaas@...gle.com>;
> Shawn Guo <shawnguo@...nel.org>; gustavo.pimentel@...opsys.com;
> M.H. Lian <minghuan.lian@....com>; Mingkai Hu <mingkai.hu@....com>;
> Roy Zang <roy.zang@....com>
> Subject: Re: [PATCHv5 0/6] PCI: layerscape: Add power management support
> 
> On Thu, Nov 11, 2021 at 03:21:37PM -0600, Li Yang wrote:
> > On Wed, Apr 7, 2021 at 9:13 AM Zhiqiang Hou <Zhiqiang.Hou@....com>
> wrote:
> > >
> > > From: Hou Zhiqiang <Zhiqiang.Hou@....com>
> > >
> > > This patch series is to add PCIe power management support for NXP
> > > Layerscape platforms.
> > >
> > > Hou Zhiqiang (6):
> > >   PCI: layerscape: Change to use the DWC common link-up check function
> > >   dt-bindings: pci: layerscape-pci: Add a optional property big-endian
> > >   arm64: dts: layerscape: Add big-endian property for PCIe nodes
> > >   dt-bindings: pci: layerscape-pci: Update the description of SCFG
> > >     property
> > >   arm64: dts: ls1043a: Add SCFG phandle for PCIe nodes
> > >   PCI: layerscape: Add power management support
> > >
> > >  .../bindings/pci/layerscape-pci.txt           |   6 +-
> > >  .../arm64/boot/dts/freescale/fsl-ls1012a.dtsi |   1 +
> > >  .../arm64/boot/dts/freescale/fsl-ls1043a.dtsi |   6 +
> > >  .../arm64/boot/dts/freescale/fsl-ls1046a.dtsi |   3 +
> > >  drivers/pci/controller/dwc/pci-layerscape.c   | 450 ++++++++++++++----
> > >  drivers/pci/controller/dwc/pcie-designware.h  |   1 +
> > >  6 files changed, 370 insertions(+), 97 deletions(-)
> >
> > Hi Bjorn,
> >
> > I don't see any feedback on this version.  Is there any chance that
> > the binding/driver changes can be picked up?
> 
> Probably slipped through the cracks.  We're in the middle of the v5.16 merge
> window right now.  After v5.16-rc1 is tagged (probably Nov 14), rebase your
> series on top of that, incorporate Rob's reviewed-by, and repost it.  Then
> Lorenzo will see it and take a look.

Thanks Bjorn,

While we waiting for the repost and review for the driver change, the dt-binding
updates seems to be unrelated to the driver changes.  So probably they can be
applied separately to make the dts changes mergeable?

Regards,
Leo