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Date:   Wed, 11 Jul 2018 10:13:56 -0600
From:   Rob Herring <robh@kernel.org>
To:     Icenowy Zheng <icenowy@aosc.io>
Cc:     Maxime Ripard <maxime.ripard@bootlin.com>,
        Chen-Yu Tsai <wens@csie.org>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: Re: [PATCH v2 6/9] dt-bindings: phy: add binding for Allwinner USB3
 PHY
Message-ID: <20180711161356.GA4685@rob-hp-laptop>
References: <20180706153805.25842-1-icenowy@aosc.io>
 <20180706153805.25842-7-icenowy@aosc.io>
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On Fri, Jul 06, 2018 at 11:38:02PM +0800, Icenowy Zheng wrote:
> The new Allwinner H6 SoC contains a USB3 PHY that is wired to the
> external USB3 pins of the SoC.
> 
> Add a device tree binding for the PHY.
> 
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> ---
> Splitted from the PHY driver patch in v1.
> 
>  .../bindings/phy/sun50i-usb3-phy.txt          | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
> 
> diff --git a/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt b/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
> new file mode 100644
> index 000000000000..912d55f9f69d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/sun50i-usb3-phy.txt
> @@ -0,0 +1,24 @@
> +Allwinner sun50i USB3 PHY
> +-----------------------
> +
> +Required properties:
> +- compatible : should be one of
> +  * allwinner,sun60i-h6-usb3-phy
> +- reg : a list of offset + length pairs
> +- #phy-cells : from the generic phy bindings, must be 0
> +- clocks : phandle + clock specifier for the phy clock
> +- resets : phandle + reset specifier for the phy reset
> +
> +Optional Properties:
> +- phy-supply : from the generic phy bindings, a phandle to a regulator that
> +	       provides power to VBUS.

Power to the phy or Vbus? If the latter only, then this property should 
be elsewhere (like a connector node).

> +
> +Example:
> +	usb3phy: phy@5210000 {
> +		compatible = "allwinner,sun50i-h6-usb3-phy";
> +		reg = <0x5210000 0x10000>;
> +		clocks = <&ccu CLK_USB_PHY1>;
> +		resets = <&ccu RST_USB_PHY1>;
> +		#phy-cells = <0>;
> +		status = "disabled";
> +	};
> -- 
> 2.17.1
> 
> --
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