linux-kernel - Re: [PATCH v2 1/2] dt-bindings: mmc: add DT bindings for Milbeaut SD controller

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Date:   Thu, 11 Jul 2019 01:28:43 +0000
From:   <orito.takao@...ionext.com>
To:     <robh@...nel.org>
CC:     <ulf.hansson@...aro.org>, <mark.rutland@....com>,
        <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <masami.hiramatsu@...aro.org>,
        <jaswinder.singh@...aro.org>, <sugaya.taichi@...ionext.com>,
        <kasai.kazuhiro@...ionext.com>, <kanematsu.shinji@...ionext.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: mmc: add DT bindings for Milbeaut SD
 controller


Thanks for checking my patch.

> On Thu, May 30, 2019 at 06:22:11PM +0900, Takao Orito wrote:
> > Add the device-tree binding documentation for Milbeaut SDHCI driver.
> > 
> > Signed-off-by: Takao Orito <orito.takao@...ionext.com>
> > ---
> >  .../devicetree/bindings/mmc/sdhci-milbeaut.txt     | 32 ++++++++++++++++++++++
> >  1 file changed, 32 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt b/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
> > new file mode 100644
> > index 0000000..6063116
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mmc/sdhci-milbeaut.txt
> > @@ -0,0 +1,32 @@
> > +* SOCIONEXT Milbeaut SDHCI controller
> > +
> > +This file documents differences between the core properties in mmc.txt
> > +and the properties used by the sdhci_milbeaut driver.
> > +
> > +Required properties:
> > +- compatible: "socionext,milbeaut-m10v-sdhci-3.0"
> > +- clocks: Must contain an entry for each entry in clock-names. It is a
> > +  list of phandles and clock-specifier pairs.
> > +  See ../clocks/clock-bindings.txt for details.
> > +- clock-names: Should contain the following two entries:
> > +	"iface" - clock used for sdhci interface
> > +	"core"  - core clock for sdhci controller
> > +- vmmc-supply: a phandle of a fixed GPIO regulator
> 
> Being a fixed GPIO regulator is board specific and outside the scope of 
> the binding. Otherwise,
> 
> Reviewed-by: Rob Herring <robh@...nel.org>

I see. I will remove vmmc-supply and send new patch.

Thanks
Orito

> 
> > +
> > +Optional properties:
> > +- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
> > +  requires the CMD_DAT_DELAY control to be enabled.
> > +
> > +Example:
> > +	sdhci3: mmc@...10000 {
> > +		compatible = "socionext,milbeaut-m10v-sdhci-3.0";
> > +		reg = <0x1b010000 0x10000>;
> > +		interrupts = <0 265 0x4>;
> > +		voltage-ranges = <3300 3300>;
> > +		bus-width = <4>;
> > +		clocks = <&clk 7>, <&ahb_clk>;
> > +		clock-names = "core", "iface";
> > +		cap-sdio-irq;
> > +		vmmc-supply = <&vcc_sdhci3>;
> > +		fujitsu,cmd-dat-delay-select;
> > +	};
> > -- 
> > 1.9.1
> > 
> > 

-- 
Takao Orito <orito.takao@...ionext.com>