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Date:   Tue, 14 Jan 2020 15:16:43 +0000
From:   Mark Brown <broonie@kernel.org>
To:     Nicolas Boichat <drinkcat@chromium.org>
Cc:     Rob Herring <robh+dt@kernel.org>, David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Mark Rutland <mark.rutland@arm.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Tomeu Vizoso <tomeu.vizoso@collabora.com>,
        Steven Price <steven.price@arm.com>,
        Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
        Liam Girdwood <lgirdwood@gmail.com>,
        dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, hsinyi@chromium.org
Subject: Re: [PATCH v3 4/7] drm/panfrost: Add support for multiple regulators
Message-ID: <20200114151643.GW3897@sirena.org.uk>
References: <20200114071602.47627-1-drinkcat@chromium.org>
 <20200114071602.47627-5-drinkcat@chromium.org>
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On Tue, Jan 14, 2020 at 03:15:59PM +0800, Nicolas Boichat wrote:

>  - I couldn't find a way to detect the number of regulators in the
>    device tree, if we wanted to refuse to probe the device if there
>    are too many regulators, which might be required for safety, see
>    the thread on v2 [1].

You'd need to enumerate all the properties of the device and look
for things matching *-supply.

Reviewed-by: Mark Brown <broonie@kernel.org>

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