linux-kernel - Re: [PATCH v3 1/4] dt-bindings: cpufreq: Add mediatek,mt8196-cpufreq-hw binding

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Message-ID: <384e41cd-8bc0-4f98-9fcb-362608d93859@collabora.com>
Date: Thu, 17 Jul 2025 12:28:30 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>,
 "Rafael J. Wysocki" <rafael@...nel.org>,
 Viresh Kumar <viresh.kumar@...aro.org>, 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, linux-pm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v3 1/4] dt-bindings: cpufreq: Add
 mediatek,mt8196-cpufreq-hw binding

Il 16/07/25 19:51, Nicolas Frattaroli ha scritto:
> The MediaTek MT8196 SoC has new cpufreq hardware, with added memory
> register ranges to control Dynamic-Voltage-Frequency-Scaling.
> 
> The DVFS hardware is controlled through a set of registers referred to
> as "FDVFS". They set the target frequency the DVFS hardware should aim
> for for each performance domain.
> 
> Instead of working around the old binding and its already established
> meanings for the reg items, add a new binding. The FDVFS register memory
> region is at the beginning, which allows us to easily expand this
> binding for future SoCs which may have more than 3 performance domains.
> 
> Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>

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