linux-kernel - Re: [PATCH v2 5/5] arm64: dts: mediatek: add xHCI & usb phy for mt8173

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Date:	Mon, 20 Jul 2015 22:51:13 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	chunfeng yun <chunfeng.yun@...iatek.com>
CC:	Daniel Kurtz <djkurtz@...omium.org>,
	Mark Rutland <mark.rutland@....com>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	Mathias Nyman <mathias.nyman@...el.com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	<linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Felipe Balbi <balbi@...com>, Rob Herring <robh+dt@...nel.org>,
	<linux-mediatek@...ts.infradead.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Roger Quadros <rogerq@...com>
Subject: Re: [PATCH v2 5/5] arm64: dts: mediatek: add xHCI & usb phy for
 mt8173


Hi Daniel, Chunfeng,


On Mon, 2015-07-20 at 22:39 +0800, chunfeng yun wrote:
> Hi,
> 
> On Tue, 2015-07-14 at 18:12 +0800, Daniel Kurtz wrote:
<...>
> > > +
> > > +       usb_p1_vbus: fixedregulator@0 {
> > 
> > Why @0 ?
> It is the first fixed regulator, so set it to 0 as a index.
> I will remove it later

Since this name should be unique, I think we should use gpio number as
address for fixedregulator in case we need other fixedregulators. So
this could be:

	usb_p1_vbus: fixedregulator@130 {

Also, we should sort according to the address(gpio number) for these
nodes. Does this make sense?

Joe.C

> > 
> > > +               compatible = "regulator-fixed";
> > > +               regulator-name = "usb_vbus";
> > > +               regulator-min-microvolt = <5000000>;
> > > +               regulator-max-microvolt = <5000000>;
> > > +               gpio = <&pio 130 GPIO_ACTIVE_HIGH>;
> > > +               enable-active-high;
> > > +       };


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