linux-kernel - Re: [PATCH v2 3/3] dt-bindings: phy-mtk-tphy: add properties for U2 slew rate calibrate

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Date:   Mon, 19 Mar 2018 11:21:40 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Rob Herring <robh@...nel.org>
CC:     Kishon Vijay Abraham I <kishon@...com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Ian Campbell <ijc+devicetree@...lion.org.uk>,
        Ryder Lee <ryder.lee@...iatek.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-usb@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 3/3] dt-bindings: phy-mtk-tphy: add properties for U2
 slew rate calibrate

On Sun, 2018-03-18 at 07:48 -0500, Rob Herring wrote:
> On Mon, Mar 12, 2018 at 01:25:40PM +0800, Chunfeng Yun wrote:
> > Add two properties of ref_clk and coefficient used by U2 slew rate
> > calibrate which may vary on different SoCs
> > 
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> > ---
> >  Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
> > index 41e09ed..0d34b2b 100644
> > --- a/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
> > +++ b/Documentation/devicetree/bindings/phy/phy-mtk-tphy.txt
> > @@ -27,6 +27,10 @@ Optional properties (controller (parent) node):
> >   - reg		: offset and length of register shared by multiple ports,
> >  		  exclude port's private register. It is needed on mt2701
> >  		  and mt8173, but not on mt2712.
> > + - mediatek,src-ref-clk-mhz	: frequency of reference clock for slew rate
> > +		  calibrate
> > + - mediatek,src-coef	: coefficient for slew rate calibrate, depends on
> > +		  SoC process
> 
> What are valid values? This is one cell?
Yes, one cell, integer type. If need, I'll send a new patch

Thanks
> 
> >  
> >  Required properties (port (child) node):
> >  - reg		: address and length of the register set for the port.
> > -- 
> > 1.9.1
> >