linux-kernel - Re: [PATCH 2/3] arm64: dts: mediatek: mt8365: Add GPU support

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Message-ID: <c29a4ea7-34fd-44bf-bb32-a7a96bf0e04e@collabora.com>
Date: Tue, 14 Oct 2025 15:18:33 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>
Cc: kernel@...labora.com, dri-devel@...ts.freedesktop.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH 2/3] arm64: dts: mediatek: mt8365: Add GPU support

Il 13/08/25 11:25, Louis-Alexis Eyraud ha scritto:
> The Mediatek MT8365 SoC has an integrated Arm Mali G52 MC1 GPU
> (Bifrost).
> Add gpu, OPP table, and MFG clock driver nodes in mt8365.dtsi to support
> it using the Panfrost driver.
> 
> Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8365.dtsi | 41 +++++++++++++++++++++++++++++++-
>   1 file changed, 40 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8365.dtsi b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> index e6d2b3221a3b7a855129258b379ae4bc2fd05449..6a7b4f58918b22f51b792f3a99bd777acf72df9d 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8365.dtsi
> @@ -267,6 +267,24 @@ clk26m: oscillator {
>   		clock-output-names = "clk26m";
>   	};
>   
> +	gpu_opp_table: opp-table-gpu {
> +		compatible = "operating-points-v2";
> +		opp-shared;
> +
> +		opp-450000000 {
> +			opp-hz = /bits/ 64 <450000000>;
> +			opp-microvolt = <650000>;
> +		};

Blank line between OPP nodes, please.

};

opp-560000000 {
	...
};

opp-800000000

otherwise,

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

> +		opp-560000000 {
> +			opp-hz = /bits/ 64 <560000000>;
> +			opp-microvolt = <700000>;
> +		};
> +		opp-800000000 {
> +			opp-hz = /bits/ 64 <800000000>;
> +			opp-microvolt = <800000>;
> +		};
> +	};
> +