Re: [PATCH v4 11/18] dt-bindings: gpu: Add 'resets' property for GPU initialization

Matt Coster
2025-01-31T15:40:13Z

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On 28/01/2025 19:48, Michal Wilczynski wrote:
> Many RISC-V boards featuring Imagination Technologies GPUs require a
> reset line to be de-asserted as part of the GPU power-up sequence. To
> support this, add a 'resets' property to the GPU device tree bindings.
> This ensures the GPU can be properly initialized on these platforms.

My comment on P10 ("drm/imagination: Add reset controller support for
GPU initialization") applies here too - would you mind rewording this?

Cheers,
Matt

>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
> ---
> Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> index 256e252f8087..bb607d4b1e07 100644
> --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> @@ -37,6 +37,9 @@ properties:
> power-domains:
> maxItems: 1
>
> + resets:
> + maxItems: 1
> +
> required:
> - compatible
> - reg

--
Matt Coster
E: matt.coster@imgtec.com

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