linux-kernel - Re: [PATCH 1/2] dt-bindings: mmc: add DT binding for S3C24XX MMC/SD/SDIO controller

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Message-ID: <20161206231318.m4oo2e6t5zk2txbx@rob-hp-laptop>
Date:   Tue, 6 Dec 2016 17:13:18 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jaehoon Chung <jh80.chung@...sung.com>
Cc:     Sergio Prado <sergio.prado@...abworks.com>, ulf.hansson@...aro.org,
        mark.rutland@....com, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ben-linux@...ff.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] dt-bindings: mmc: add DT binding for S3C24XX
 MMC/SD/SDIO controller

On Fri, Dec 02, 2016 at 09:48:45AM +0900, Jaehoon Chung wrote:
> On 12/02/2016 09:14 AM, Sergio Prado wrote:
> > Adds the device tree bindings description for Samsung S3C24XX
> > MMC/SD/SDIO controller, used as a connectivity interface with external
> > MMC, SD and SDIO storage mediums.
> > 
> > Signed-off-by: Sergio Prado <sergio.prado@...abworks.com>
> > ---
> >  .../devicetree/bindings/mmc/samsung,s3cmci.txt     | 38 ++++++++++++++++++++++
> >  1 file changed, 38 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt b/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt
> > new file mode 100644
> > index 000000000000..3f044076e69a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt
> > @@ -0,0 +1,38 @@
> > +* Samsung's S3C24XX MMC/SD/SDIO controller device tree bindings
> > +
> > +Samsung's S3C24XX MMC/SD/SDIO controller is used as a connectivity interface
> > +with external MMC, SD and SDIO storage mediums.
> > +
> > +This file documents differences between the core mmc properties described by
> > +mmc.txt and the properties used by the Samsung S3C24XX MMC/SD/SDIO controller
> > +implementation.
> > +
> > +Required SoC Specific Properties:
> > +- compatible: should be one of the following
> > +  - "samsung,s3c2410-sdi": for controllers compatible with s3c2410
> > +  - "samsung,s3c2412-sdi": for controllers compatible with s3c2412
> > +  - "samsung,s3c2440-sdi": for controllers compatible with s3c2440
> > +- clocks: Should reference the controller clock
> > +- clock-names: Should contain "sdi"
> > +
> > +Required Board Specific Properties:
> > +- pinctrl-0: Should specify pin control groups used for this controller.
> > +- pinctrl-names: Should contain only one value - "default".
> 
> I'm not sure but i think this description doesn't need at here.
> 
> > +
> > +Example:
> > +	sdi: sdi@...00000 {
> 
> I think it needs to use "mmc0: sdi@...00000" instead of "sdi: sdi@...00000"
> Because mmc is more clear than sdi.

The label doesn't matter much as it is not part of the dtb. The unit 
name should be 'mmc' though.

With that,

Acked-by: Rob Herring <robh@...nel.org>