linux-kernel - RE: [PATCH 2/3] mmc: sdhci-of-arasan: Add intel Thunder Bay SOC support to the arasan eMMC driver

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Message-ID: <MWHPR11MB17898D0E3A0A4DD993AD7E948CF79@MWHPR11MB1789.namprd11.prod.outlook.com>
Date:   Tue, 10 Aug 2021 07:32:55 +0000
From:   "A, Rashmi" <rashmi.a@...el.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>
CC:     Vinod Koul <vkoul@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Kishon <kishon@...com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        Mark Gross <mgross@...ux.intel.com>,
        "kris.pan@...ux.intel.com" <kris.pan@...ux.intel.com>,
        "Zhou, Furong" <furong.zhou@...el.com>,
        "Sangannavar, Mallikarjunappa" 
        <mallikarjunappa.sangannavar@...el.com>,
        "Hunter, Adrian" <adrian.hunter@...el.com>,
        "Vaidya, Mahesh R" <mahesh.r.vaidya@...el.com>,
        "Srikandan, Nandhini" <nandhini.srikandan@...el.com>,
        "Demakkanavar, Kenchappa" <kenchappa.demakkanavar@...el.com>
Subject: RE: [PATCH 2/3] mmc: sdhci-of-arasan: Add intel Thunder Bay SOC
 support to the arasan eMMC driver



> -----Original Message-----
> From: Ulf Hansson <ulf.hansson@...aro.org>
> Sent: Monday, August 9, 2021 5:43 PM
> To: A, Rashmi <rashmi.a@...el.com>
> Cc: Vinod Koul <vkoul@...nel.org>; Michal Simek
> <michal.simek@...inx.com>; linux-mmc <linux-mmc@...r.kernel.org>; Linux
> ARM <linux-arm-kernel@...ts.infradead.org>; Linux Kernel Mailing List <linux-
> kernel@...r.kernel.org>; Kishon <kishon@...com>; Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com>; linux-phy@...ts.infradead.org; Mark
> Gross <mgross@...ux.intel.com>; kris.pan@...ux.intel.com; Zhou, Furong
> <furong.zhou@...el.com>; Sangannavar, Mallikarjunappa
> <mallikarjunappa.sangannavar@...el.com>; Hunter, Adrian
> <adrian.hunter@...el.com>; Vaidya, Mahesh R
> <mahesh.r.vaidya@...el.com>; Srikandan, Nandhini
> <nandhini.srikandan@...el.com>; Demakkanavar, Kenchappa
> <kenchappa.demakkanavar@...el.com>
> Subject: Re: [PATCH 2/3] mmc: sdhci-of-arasan: Add intel Thunder Bay SOC
> support to the arasan eMMC driver
> 
> On Mon, 9 Aug 2021 at 13:17, A, Rashmi <rashmi.a@...el.com> wrote:
> >
> >
> >
> > > -----Original Message-----
> > > From: Vinod Koul <vkoul@...nel.org>
> > > Sent: Monday, August 9, 2021 2:12 PM
> > > To: A, Rashmi <rashmi.a@...el.com>
> > > Cc: Ulf Hansson <ulf.hansson@...aro.org>; Michal Simek
> > > <michal.simek@...inx.com>; linux-mmc <linux-mmc@...r.kernel.org>;
> > > Linux ARM <linux-arm-kernel@...ts.infradead.org>; Linux Kernel
> > > Mailing List <linux- kernel@...r.kernel.org>; Kishon
> > > <kishon@...com>; Andy Shevchenko
> > > <andriy.shevchenko@...ux.intel.com>; linux-phy@...ts.infradead.org;
> > > Mark Gross <mgross@...ux.intel.com>; kris.pan@...ux.intel.com; Zhou,
> > > Furong <furong.zhou@...el.com>; Sangannavar, Mallikarjunappa
> > > <mallikarjunappa.sangannavar@...el.com>; Hunter, Adrian
> > > <adrian.hunter@...el.com>; Vaidya, Mahesh R
> > > <mahesh.r.vaidya@...el.com>; Srikandan, Nandhini
> > > <nandhini.srikandan@...el.com>; Demakkanavar, Kenchappa
> > > <kenchappa.demakkanavar@...el.com>
> > > Subject: Re: [PATCH 2/3] mmc: sdhci-of-arasan: Add intel Thunder Bay
> > > SOC support to the arasan eMMC driver
> > >
> > > On 09-08-21, 05:16, A, Rashmi wrote:
> > >
> > > > >
> > > > > Rashmi, is it safe to apply this separately from the phy driver/dt
> changes?
> > > > > Then I can queue this via my mmc tree, if you like.
> > > > No, the phy driver/dt changes must go together with "mmc:
> > > > sdhci-of-
> > > arasan: Add intel Thunder Bay SOC support to the arasan eMMC driver"
> > > patch.
> > >
> > > Why is that?
> > >
> > > What could happen, emmc driver will complain about phy not found and
> > > bail right?
> > This is right, but ideally both mmc:phy and mmc: sdhci-of-arasan
> > driver code changes should go together
> 
> If patches are well written and can be standalone, we (maintainers) ideally
> prefer to queue things on a per subsystem basis, because it's just easier.
> 
> That said, I also noticed that a new compatible string was added,
> "intel,thunderbay-sdhci-5.1". This needs to be documented in
> Documentation/devicetree/bindings/mmc/arasan,sdhci.yaml, in a separate
> patch, preceding $subject patch.
> 
I acknowledge your comments. I will submit a separate patch to document device tree bindings. After that mmc: sdhci-of-arasan driver patch could be queued.

Regards
Rashmi