linux-kernel - Re: [PATCH v6 2/7] dt-bindings: power: Add MT8196 GPU frequency control binding

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Message-ID: <176003802776.3154911.16315672930945564696.robh@kernel.org>
Date: Thu, 9 Oct 2025 14:27:08 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
Cc: Maxime Ripard <mripard@...nel.org>, devicetree@...r.kernel.org,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Steven Price <steven.price@....com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Liviu Dudau <liviu.dudau@....com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	David Airlie <airlied@...il.com>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Simona Vetter <simona@...ll.ch>, Kees Cook <kees@...nel.org>,
	linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dri-devel@...ts.freedesktop.org,
	Jassi Brar <jassisinghbrar@...il.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>, kernel@...labora.com,
	Chia-I Wu <olvaffe@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	linux-hardening@...r.kernel.org,
	Boris Brezillon <boris.brezillon@...labora.com>,
	Chen-Yu Tsai <wenst@...omium.org>
Subject: Re: [PATCH v6 2/7] dt-bindings: power: Add MT8196 GPU frequency
 control binding


On Fri, 03 Oct 2025 22:15:04 +0200, Nicolas Frattaroli wrote:
> On the MT8196 and MT6991 SoCs, the GPU power and frequency is controlled
> by some integration logic, referred to as "MFlexGraphics" by MediaTek,
> which comes in the form of an embedded controller running
> special-purpose firmware.
> 
> This controller takes care of the regulators and PLL clock frequencies
> to squeeze the maximum amount of power out of the silicon.
> 
> Add a binding which models it as a power domain.
> 
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
> ---
>  .../bindings/power/mediatek,mt8196-gpufreq.yaml    | 117 +++++++++++++++++++++
>  1 file changed, 117 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>