linux-kernel - Re: [PATCH 2/3] usb: chipidea: Hook into mux framework to toggle usb switch

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Date:   Mon, 17 Jul 2017 12:22:48 -0500
From:   Rob Herring <robh@...nel.org>
To:     Stephen Boyd <stephen.boyd@...aro.org>
Cc:     Peter Chen <Peter.Chen@....com>, Peter Rosin <peda@...ntia.se>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Rob Clark <robdclark@...il.com>,
        Andy Gross <andy.gross@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/3] usb: chipidea: Hook into mux framework to toggle usb
 switch

On Thu, Jul 13, 2017 at 03:29:43PM -0700, Stephen Boyd wrote:
> Quoting Peter Rosin (2017-07-11 23:45:24)
> > On 2017-07-12 03:02, Stephen Boyd wrote:
> > > @@ -102,4 +107,7 @@ Example:
> > >               rx-burst-size-dword = <0x10>;
> > >               extcon = <0>, <&usb_id>;
> > >               phy-clkgate-delay-us = <400>;
> > > +             mux-controls = <&usb_switch>;
> > > +             mux-control-names = "usb_switch";

Pointless to have a name when there is only 1.

> > > +             usb-switch-states = <0>, <1>;
> > 
> > I don't see the need for usb-switch-states? Just assume states 0/1 and
> > if someone later needs some other states, make them add a property that
> > overrides the defaults. Just document that 0 is host and 1 is device.
> > 
> 
> Fine by me. Rob H do you agree?

Yes.

Rob