linux-kernel - Re: [PATCH] ARM: zynq: DT: Add USB to device tree

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Message-ID: <2598972.HWjIWPLUn8@wuerfel>
Date:	Tue, 02 Dec 2014 10:13:30 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Sören Brinkmann <soren.brinkmann@...inx.com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Michal Simek <michal.simek@...inx.com>,
	devicetree@...r.kernel.org,
	Peter Crosthwaite <peter.crosthwaite@...inx.com>,
	linux-kernel@...r.kernel.org,
	Andreas Färber <afaerber@...e.de>
Subject: Re: [PATCH] ARM: zynq: DT: Add USB to device tree

On Monday 01 December 2014 13:51:26 Sören Brinkmann wrote:
> Hi Arnd,
> 
> On Mon, 2014-12-01 at 10:26PM +0100, Arnd Bergmann wrote:
> > On Monday 01 December 2014 10:42:32 Soren Brinkmann wrote:
> > > +       usb_phy0: usb-phy@0 {
> > > +               compatible = "usb-nop-xceiv";
> > > +               #phy-cells = <0>;
> > > +       };
> > >  };
> > 
> > As discussed in an unrelated thread today, please drop the "@0" in the
> > node name, since the device has no 'reg' property.
> 
> What is the best practice for naming such nodes then? On these boards
> it's not the case, but Zynq has two USB cores. So, there may be DTs that
> will have two phys in there. Would we just do 'usb-phy-0'?
> 
> 

Grant recommended naming them "phy0" and "phy1" in this case.
The recommended node name for a phy is "phy", not "usb-phy" (I didn't
notice that earlier, but it makes sense to change both), and
I would not use a dash for the number there.

	Arnd
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