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Date:   Wed, 13 May 2020 23:41:31 -0300
From:   Fabio Estevam <>
To:     Lubomir Rintel <>
Cc:     Lucas Stach <>,
        linux-kernel <>,
        DRI mailing list <>,
        The etnaviv authors <>,
        Christian Gmeiner <>,
        Russell King <>
Subject: Re: [PATCH 2/3] drm/etnaviv: Don't ignore errors on getting clocks

On Wed, May 13, 2020 at 2:09 PM Fabio Estevam <> wrote:

> The binding doc Documentation/devicetree/bindings/gpu/vivante,gc.yaml
> says that only the 'reg' clock could be optional, the others are
> required.

arch/arm/boot/dts/dove.dtsi only uses the 'core' clock.
arch/arm/boot/dts/stm32mp157.dtsi uses 'bus' and 'core'

Maybe the binding needs to be updated and it seems that using
devm_clk_get_optional() like you propose is safe.

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