Re: [PATCH 1/2] dt-bindings: gpu: mali-midgard: Add resets property

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On Mon, Dec 10, 2018 at 7:22 AM Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote:
>
> The Amlogic ARM Mali Midgard requires reset controls to power on and
> software reset the GPU, adds these as optional in the bindings.
>
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
> index 18a2cde2e5f3..24d83ec952f1 100644
> --- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
> +++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.txt
> @@ -37,6 +37,8 @@ Optional properties:
>  - operating-points-v2 : Refer to Documentation/devicetree/bindings/opp/opp.txt
>    for details.
>
> +- resets : Phandle to the reset controls for the Mali Midgard device.

How many? Sounds like 1, but the dts has 2. There's also a similar
patch for Allwinner[1]. I don't want to see a different number of
resets and different names for each vendor. So first figure out how
many resets the IP block has. You'll have to find someone with access
to the TRM.

Rob

[1] https://patchwork.ozlabs.org/patch/1003654/
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