linux-kernel - Re: [PATCH v4 1/3] dt-binding: spi: Mediatek: Document devicetree bindings for spi bus

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Date:	Fri, 31 Jul 2015 10:41:11 +0800
From:	leilk liu <leilk.liu@...iatek.com>
To:	Jonas Gorski <jogo@...nwrt.org>
CC:	Mark Brown <broonie@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-spi@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v4 1/3] dt-binding: spi: Mediatek: Document devicetree
 bindings for spi bus

Hi Jonas,

On Thu, 2015-07-30 at 21:27 +0200, Jonas Gorski wrote:
> Hi,
> 
> On Wed, Jul 29, 2015 at 1:04 PM, Leilk Liu <leilk.liu@...iatek.com> wrote:
> > Signed-off-by: Leilk Liu <leilk.liu@...iatek.com>
> > ---
> >  .../devicetree/bindings/spi/spi-mt65xx.txt         | 38 ++++++++++++++++++++++
> >  1 file changed, 38 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/spi/spi-mt65xx.txt
> >
> > diff --git a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
> > new file mode 100644
> > index 0000000..f8005d6
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt
> > @@ -0,0 +1,38 @@
> > +MTK SPI device
> 
> You are calling it "MediaTek SPI controller" in the Kconfig entry, so
> you should call it that here as well.
> 

OK, I will fix it.

> > +
> > +Required properties:
> > +- compatible: should be one of the following.
> > +    - mediatek,mt8173-spi: for mt8173 platforms
> > +    - mediatek,mt8135-spi: for mt8135 platforms
> > +    - mediatek,mt6589-spi: for mt6589 platforms
> > +
> > +- #address-cells: should be 1.
> > +
> > +- #size-cells: should be 0.
> > +
> > +- reg: Address and length of the register set for the device
> > +
> > +- interrupts: Should contain spi interrupt
> > +
> > +- clocks: phandles to input clocks.
> > +
> > +- clock-names: tuple listing input clock names.
> > +       Required elements: "main"
> > +
> > +- pad-select: should specify spi pad used, only required for MT8173.
> > +        This value should be 0~3.
> 
> As already commented on the v3, this is a vendor property, and must
> have a vendor prefix, so it must be called "mediatek,pad-select".
> 

OK, I will fix it on the next version.

> > +
> > +Example:
> > +
> > +- SoC Specific Portion:
> > +spi: spi@...0a000 {
> > +       compatible = "mediatek,mt8173-spi";
> > +       #address-cells = <1>;
> > +       #size-cells = <0>;
> > +       reg = <0 0x1100a000 0 0x1000>;
> > +       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_LOW>;
> > +       clocks = <&pericfg CLK_PERI_SPI0>;
> > +       clock-names = "main";
> > +       pad-select = <0>;
> > +       status = "disabled";
> > +};
> 
> 
> Jonas


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