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

[Rob Herring]

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 at mediatek.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?

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