linux-kernel - Re: [PATCH v3 5/5] arm64: dts: mediatek: add xHCI & usb phy for mt8173

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Date:	Wed, 22 Jul 2015 21:11:50 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Chunfeng Yun <chunfeng.yun@...iatek.com>,
	Mathias Nyman <mathias.nyman@...el.com>
Cc:	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Felipe Balbi <balbi@...com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Roger Quadros <rogerq@...com>, linux-usb@...r.kernel.org,
	linux-mediatek@...ts.infradead.org,
	John Crispin <blogic@...nwrt.org>,
	Daniel Kurtz <djkurtz@...omium.org>
Subject: Re: [PATCH v3 5/5] arm64: dts: mediatek: add xHCI & usb phy for
 mt8173

Hello.

On 07/22/2015 05:05 PM, Chunfeng Yun wrote:

> add xHCI and phy drivers for MT8173-EVB

> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 15 ++++++++++++++
>   arch/arm64/boot/dts/mediatek/mt8173.dtsi    | 31 +++++++++++++++++++++++++++++
>   2 files changed, 46 insertions(+)

> diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> index f433c21..202b2b9 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
> @@ -13,6 +13,7 @@
>    */
>
>   /dts-v1/;
> +#include <dt-bindings/gpio/gpio.h>
>   #include "mt8173.dtsi"
>
>   / {
> @@ -32,6 +33,15 @@
>   	};
>
>   	chosen { };
> +
> +	usb_p1_vbus: fixedregulator@0 {

    Just "regulator@0" please. This is more in line with what ePAPR requires 
from the node names.

> +		compatible = "regulator-fixed";
> +		regulator-name = "usb_vbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		gpio = <&pio 130 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
>   };
>
>   &pwrap {
[...]
> diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> index 0696f8f..aa1ecc7 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
[...]
> @@ -393,6 +394,36 @@
>   			#size-cells = <0>;
>   			status = "disabled";
>   		};
> +
> +		usb: usb30@...70000 {

    ePAPR standardizes the name "usb" for such nodes, please fix.

[...]

MBR, Sergei

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