[v16, 0/7] Fix eSDHC host version register bug

[Y.B. Lu]

> -----Original Message-----
> From: linux-mmc-owner at vger.kernel.org [mailto:linux-mmc-
> owner at vger.kernel.org] On Behalf Of Scott Wood
> Sent: Thursday, November 10, 2016 11:55 AM
> To: Ulf Hansson; Y.B. Lu
> Cc: linux-mmc; Arnd Bergmann; linuxppc-dev at lists.ozlabs.org;
> devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org; linux-
> kernel at vger.kernel.org; linux-clk; iommu at lists.linux-foundation.org;
> netdev at vger.kernel.org; Greg Kroah-Hartman; Mark Rutland; Rob Herring;
> Russell King; Jochen Friedrich; Joerg Roedel; Claudiu Manoil; Bhupesh
> Sharma; Qiang Zhao; Kumar Gala; Leo Li; X.B. Xie; M.H. Lian
> 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 at nxp.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.

[Lu Yangbo-B47093] You're right, Scott. I dropped DT patch 'dt: bindings: update Freescale DCFG compatible '
which fixed un-doc issue since Shaohui had done this on Shawn Guo's tree.
https://git.kernel.org/cgit/linux/kernel/git/shawnguo/linux.git/commit/?h=imx/dt64&id=981034a2bfcaff5c95dafde24d7abfe7f9025c19

Thanks.

> 
> -Scott
> 
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