linux-kernel - RE: [PATCH 0/6] Add IMX8M Mini PCI support

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Message-ID: <AS8PR04MB8676E06CA5642DC75B2E8FA78CB69@AS8PR04MB8676.eurprd04.prod.outlook.com>
Date:   Tue, 12 Oct 2021 08:29:30 +0000
From:   Richard Zhu <hongxing.zhu@....com>
To:     "tharvey@...eworks.com" <tharvey@...eworks.com>,
        Lucas Stach <l.stach@...gutronix.de>
CC:     Adam Ford <aford173@...il.com>,
        Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Subject: RE: [PATCH 0/6] Add IMX8M Mini PCI support


> -----Original Message-----
> From: Tim Harvey <tharvey@...eworks.com>
> Sent: Monday, October 11, 2021 11:29 PM
> To: Lucas Stach <l.stach@...gutronix.de>; Richard Zhu
> <hongxing.zhu@....com>
> Cc: Adam Ford <aford173@...il.com>; Ahmad Fatoum
> <a.fatoum@...gutronix.de>; Bjorn Helgaas <bhelgaas@...gle.com>; Rob
> Herring <robh+dt@...nel.org>; Shawn Guo <shawnguo@...nel.org>; Sascha
> Hauer <s.hauer@...gutronix.de>; Pengutronix Kernel Team
> <kernel@...gutronix.de>; Fabio Estevam <festevam@...il.com>;
> dl-linux-imx <linux-imx@....com>; linux-pci@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org;
> linux-kernel@...r.kernel.org; Krzysztof Wilczyński <kw@...ux.com>; Lorenzo
> Pieralisi <lorenzo.pieralisi@....com>
> Subject: Re: [PATCH 0/6] Add IMX8M Mini PCI support
> 
> On Mon, Oct 11, 2021 at 5:30 AM Lucas Stach <l.stach@...gutronix.de>
> wrote:
> >
> > Hi Adam,
> >
> > Am Montag, dem 11.10.2021 um 07:25 -0500 schrieb Adam Ford:
> > > On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@...eworks.com>
> wrote:
> > > >
> > > > On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@....com>
> wrote:
> > > > >
> > > > > Hi Tim:
> > > > > Just as Ahmad mentioned, Lucas had issue one patch-set to support
> i.MX8MM PCIe.
> > > > > Some comments in the review cycle.
> > > > > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > > > > - Schema file should be used I think, otherwise the .txt file in the
> dt-binding.
> > > > >
> > > > > I'm preparing one patch-set, but it's relied on the yaml file exchanges
> and power-domain changes(block control and so on).
> > > > > Up to now, I only walking on the first step, trying to exchange the
> dt-binding files to schema yaml file.
> > > > >
> > > > > Best Regards
> > > > > Richard Zhu
> > > >
> > > > Richard / Ahmad,
> > > >
> > > > Thanks for your response - I did not see the series from Lucas. I
> > > > will drop this and wait for him to complete his work.
> > > >
> > >
> > > Tim,
> > >
> > > It appears that the power domain changes have been applied to
> > > Shawn's for-next branch:
> > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgi
> > >
> t.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fshawnguo%2Flinux.
> g
> > >
> it%2Flog%2F%3Fh%3Dfor-next&amp;data=04%7C01%7Chongxing.zhu%40nx
> p.com
> > > %7C1e298d5c31594e5a09df08d98ccbef7a%7C686ea1d3bc2b4c6fa92cd9
> 9c5c3016
> > >
> 35%7C0%7C0%7C637695629794787625%7CUnknown%7CTWFpbGZsb3d8ey
> JWIjoiMC4w
> > >
> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&a
> mp;sd
> > >
> ata=PY2%2Bvr3s6K5O18lQ9SLY5YCqZHR7Fa%2F2RrbJ%2B041CBU%3D&amp;
> reserve
> > > d=0
> > >
> > > Is there any chance you could rebase and resend this series?
> >
> > This wasn't about the power domain series. I also tried to get i.MX8M
> > PCIe upstream, but the feedback was that we need to split out the PHY
> > functionality, Richard is currently working on this. There is no point
> > in resending this series.
> >
> 
> Lucas,
> 
> Thanks for the update.
> 
> Richard - please Cc me when you submit as I have several boards to test
> IMX8MM PCI with, some with PCI bridges and some without.
[Richard Zhu] Ok, no problem. I would CC you when I issued the v3 patch-set later.
Thanks.

Best Regards
Richard Zhu> 
> Best regards,
> 
> Tim