linux-kernel - Re: [PATCH 1/4] arm64: dts: rockchip: helios64: fixup USB setup

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Message-ID: <f46b234e0aaf4356804d5e1446910bbedcbddb51.camel@redhat.com>
Date:   Thu, 01 Jul 2021 07:59:42 -0500
From:   Dennis Gilmore <dgilmore@...hat.com>
To:     Uwe Kleine-König <uwe@...ine-koenig.org>,
        linux-rockchip@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/Rockchip SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] arm64: dts: rockchip: helios64: fixup USB setup

On Thu, 2021-07-01 at 11:31 +0200, Uwe Kleine-König wrote:
> Hello,
> 
> On 7/1/21 2:40 AM, Dennis Gilmore wrote:
> > Without the usbdrd_dwc3_1 node defined u-boot will throw an error
> > and
> > reset the system.
> 
> I wonder if this should better be fixed in u-boot then?!
> 
> > All other rk3399 systems use this format
> 
> This is true for the dwc nodes, however for the usb2 nodes there are 
> several that use this idiom (and even repeat the label name), see for
> example the &u2phy0 node in 
> arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi .
> 

looking at that file is where I got the idea to set it up as I have
proposed, it follows the format I have submitted

Dennis

> In my eyes it's a bit ugly to have the two nodes as separate entities
> and on the same indentation level in the machine dts given that one
> is 
> the parent of the other and enabling USB needs both status settings.
> 
> Best regards
> Uwe
>