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Message-ID: <1478750114.21746.4.camel@buserror.net>
Date:   Wed, 09 Nov 2016 21:55:14 -0600
From:   Scott Wood <oss@...error.net>
To:     Ulf Hansson <ulf.hansson@...aro.org>, Yangbo Lu <yangbo.lu@....com>
Cc:     linux-mmc <linux-mmc@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        iommu@...ts.linux-foundation.org, netdev@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Russell King <linux@....linux.org.uk>,
        Jochen Friedrich <jochen@...am.de>,
        Joerg Roedel <joro@...tes.org>,
        Claudiu Manoil <claudiu.manoil@...escale.com>,
        Bhupesh Sharma <bhupesh.sharma@...escale.com>,
        Qiang Zhao <qiang.zhao@....com>,
        Kumar Gala <galak@...eaurora.org>, Leo Li <leoyang.li@....com>,
        Xiaobo Xie <xiaobo.xie@....com>,
        Minghuan Lian <minghuan.lian@....com>
Subject: Re: [v16, 0/7] Fix eSDHC host version register bug

On Wed, 2016-11-09 at 19:27 +0100, Ulf Hansson wrote:
> - i2c-list
> 
> On 9 November 2016 at 04:14, Yangbo Lu <yangbo.lu@....com> wrote:
> > 
> > This patchset is used to fix a host version register bug in the T4240-
> > R1.0-R2.0
> > eSDHC controller. To match the SoC version and revision, 15 previous
> > version
> > patchsets had tried many methods but all of them were rejected by
> > reviewers.
> > Such as
> >         - dts compatible method
> >         - syscon method
> >         - ifdef PPC method
> >         - GUTS driver getting SVR method
> > Anrd suggested a soc_device_match method in v10, and this is the only
> > available
> > method left now. This v11 patchset introduces the soc_device_match
> > interface in
> > soc driver.
> > 
> > The first four patches of Yangbo are to add the GUTS driver. This is used
> > to
> > register a soc device which contain soc version and revision information.
> > The other three patches introduce the soc_device_match method in soc
> > driver
> > and apply it on esdhc driver to fix this bug.
> > 
> > ---
> > Changes for v15:
> >         - Dropped patch 'dt: bindings: update Freescale DCFG compatible'
> >           since the work had been done by below patch on ShawnGuo's linux
> > tree.
> >           'dt-bindings: fsl: add LS1043A/LS1046A/LS2080A compatible for
> > SCFG
> >            and DCFG'
> >         - Fixed error code issue in guts driver
> > Changes for v16:
> >         - Dropped patch 'powerpc/fsl: move mpc85xx.h to include/linux/fsl'
> >         - Added a bug-fix patch from Geert
> > ---
> > 
> > Arnd Bergmann (1):
> >   base: soc: introduce soc_device_match() interface
> > 
> > Geert Uytterhoeven (1):
> >   base: soc: Check for NULL SoC device attributes
> > 
> > Yangbo Lu (5):
> >   ARM64: dts: ls2080a: add device configuration node
> >   dt: bindings: move guts devicetree doc out of powerpc directory
> >   soc: fsl: add GUTS driver for QorIQ platforms
> >   MAINTAINERS: add entry for Freescale SoC drivers
> >   mmc: sdhci-of-esdhc: fix host version for T4240-R1.0-R2.0
> > 
> >  .../bindings/{powerpc => soc}/fsl/guts.txt         |   3 +
> >  MAINTAINERS                                        |  11 +-
> >  arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi     |   6 +
> >  drivers/base/Kconfig                               |   1 +
> >  drivers/base/soc.c                                 |  70 ++++++
> >  drivers/mmc/host/Kconfig                           |   1 +
> >  drivers/mmc/host/sdhci-of-esdhc.c                  |  20 ++
> >  drivers/soc/Kconfig                                |   3 +-
> >  drivers/soc/fsl/Kconfig                            |  18 ++
> >  drivers/soc/fsl/Makefile                           |   1 +
> >  drivers/soc/fsl/guts.c                             | 236
> > +++++++++++++++++++++
> >  include/linux/fsl/guts.h                           | 125 ++++++-----
> >  include/linux/sys_soc.h                            |   3 +
> >  13 files changed, 447 insertions(+), 51 deletions(-)
> >  rename Documentation/devicetree/bindings/{powerpc => soc}/fsl/guts.txt
> > (91%)
> >  create mode 100644 drivers/soc/fsl/Kconfig
> >  create mode 100644 drivers/soc/fsl/guts.c
> > 
> > --
> > 2.1.0.27.g96db324
> > 
> Thanks, applied on my mmc tree for next!
> 
> I noticed that some DT compatibles weren't documented, according to
> checkpatch. Please fix that asap!

They are documented, in fsl/guts.txt (the file moved in patch 2/7):
>  - compatible : Should define the compatible device type for
>    global-utilities.
>    Possible compatibles:
>         "fsl,qoriq-device-config-1.0"
>         "fsl,qoriq-device-config-2.0"
>         "fsl,<chip>-device-config"
>         "fsl,<chip>-guts"

Checkpatch doesn't understand compatibles defined in such a way.

-Scott

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