linux-kernel - Re: [PATCH] arm64: dts: rockchip: pwm-fan overlay for NanoPC-T6

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Message-Id: <DDTF376168GE.27A08H5NLTCRF@cknow-tech.com>
Date: Mon, 27 Oct 2025 22:20:15 +0100
From: "Diederik de Haas" <diederik@...ow-tech.com>
To: "Dragan Simic" <dsimic@...jaro.org>, "Alexey Charkov"
 <alchark@...il.com>
Cc: <sigmaris@...il.com>, <conor+dt@...nel.org>,
 <devicetree@...r.kernel.org>, <heiko@...ech.de>, <krzk+dt@...nel.org>,
 <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
 <linux-rockchip@...ts.infradead.org>, <robh@...nel.org>
Subject: Re: [PATCH] arm64: dts: rockchip: pwm-fan overlay for NanoPC-T6

On Mon Oct 27, 2025 at 10:15 PM CET, Dragan Simic wrote:
> FWIW, the most user-friendly SBC family in the world, Raspberry
> Pi, :) requires manual enabling of the fan on Raspberry Pi 4.
> I haven't researched what's the background for that, perhaps the

RPi's have been using DT overlays basically from their start (ie way
before it became practically usable on the upstream kernel).