linux-kernel - Re: [RFC V2 08/11] dt-bindings: interconnect: add MT8183 interconnect dt-bindings

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Date:   Wed, 1 May 2019 15:27:53 -0500
From:   Rob Herring <robh@...nel.org>
To:     Henry Chen <henryc.chen@...iatek.com>
Cc:     Georgi Djakov <georgi.djakov@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Viresh Kumar <vireshk@...nel.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Nicolas Boichat <drinkcat@...gle.com>,
        Fan Chen <fan.chen@...iatek.com>,
        James Liao <jamesjj.liao@...iatek.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC V2 08/11] dt-bindings: interconnect: add MT8183
 interconnect dt-bindings

On Tue, Apr 30, 2019 at 04:51:02PM +0800, Henry Chen wrote:
> Add interconnect provider dt-bindings for MT8183.
> 
> Signed-off-by: Henry Chen <henryc.chen@...iatek.com>
> ---
>  .../bindings/interconnect/mtk,mt8183.txt           | 24 ++++++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interconnect/mtk,mt8183.txt
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/mtk,mt8183.txt b/Documentation/devicetree/bindings/interconnect/mtk,mt8183.txt
> new file mode 100644
> index 0000000..1cf1841
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interconnect/mtk,mt8183.txt
> @@ -0,0 +1,24 @@
> +Mediatek MT8183 interconnect binding

This should be part of the dvfsrc binding.

> +
> +MT8183 interconnect providers support dram bandwidth requirements. The provider
> +is able to communicate with the DVFSRC and send the dram bandwidth to it.
> +Provider nodes must reside within an DVFSRC device node.
> +
> +Required properties :
> +- compatible : shall contain only one of the following:
> +			"mediatek,mt8183-emi-icc"
> +- #interconnect-cells : should contain 1
> +
> +Examples:
> +
> +dvfsrc@...12000 {
> +	compatible = "mediatek,mt8183-dvfsrc";
> +	reg = <0 0x10012000 0 0x1000>;
> +	clocks = <&infracfg CLK_INFRA_DVFSRC>;
> +	clock-names = "dvfsrc";
> +	ddr_emi: interconnect {
> +		compatible = "mediatek,mt8183-emi-icc";
> +		#interconnect-cells = <1>;

No need for a child node here. Just move #interconnect-cells to the 
parent.

Rob