linux-kernel - Re: [PATCH v4 1/3] dt-bindings: chrome: Add ChromeOS fingerprint binding

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Message-ID: <CAE-0n52o+XsyzF5GzRQ9piPYnntBTtpo+t1b6bChT-iUVg=aFg@mail.gmail.com>
Date:   Tue, 22 Mar 2022 02:40:54 +0100
From:   Stephen Boyd <swboyd@...omium.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Benson Leung <bleung@...omium.org>, linux-kernel@...r.kernel.org,
        chrome-platform@...ts.linux.dev, devicetree@...r.kernel.org,
        Guenter Roeck <groeck@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Craig Hesling <hesling@...omium.org>,
        Tom Hughes <tomhughes@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Matthias Kaehlcke <mka@...omium.org>
Subject: Re: [PATCH v4 1/3] dt-bindings: chrome: Add ChromeOS fingerprint binding

Quoting Rob Herring (2022-03-21 18:32:40)
> On Mon, Mar 21, 2022 at 12:10:57PM -0700, Stephen Boyd wrote:
> > Add a binding to describe the fingerprint processor found on Chromebooks
> > with a fingerprint sensor. Previously we've been describing this with
> > the google,cros-ec-spi binding but it lacks gpio and regulator control
> > used during firmware flashing.
>
> Then 'google,cros-ec-spi' should be a fallback?

Sure that's fine. Then the second patch isn't needed either.