From nobody Sat Feb 7 12:40:57 2026 Received: from mail-wm1-f47.google.com (mail-wm1-f47.google.com [209.85.128.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6BF111E1E00 for ; Sun, 26 Oct 2025 19:49:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761508147; cv=none; b=mjjjqDAR8i1zGtIF2gsSB+uAtvn1XCDddqfB3SAa06V0kiV3ktI869QA5Wpg0nKZVbs3u5Zd36kH/rR0u6n6qKtK+3HEB4pGqxU/CbU7YmTNp8mEvG3id2qC31FbKyGsB/nbTyyTfJ2Y9yFIm0XilbIJU/nDJGxHpz6onvG8WOA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761508147; c=relaxed/simple; bh=yEDM5djfStEQKMjG1jKwNq677sq7Oympi+OJl1BgcBw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=LOg9c/c8Hlm5EaBBrBBjLYOyXXqAOeducyLVGD37HOQUcowrEIy7OwE37veEV6294V0vOEoqdpEFcm2SBFt0VEhqlal8YMlB9z6szxqy2sNKjrdoHbRcNZCDqQJQkfm8yAoJv8THMLE56oL2wOpjX8xcLlGJRSwQTQxsgFjmax8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Sf5CXgJA; arc=none smtp.client-ip=209.85.128.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Sf5CXgJA" Received: by mail-wm1-f47.google.com with SMTP id 5b1f17b1804b1-475de184058so4167075e9.2 for ; Sun, 26 Oct 2025 12:49:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1761508144; x=1762112944; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=dGAlA6xEEpg5Sg3NpocSMWJ7GFQOTpi3dlaTTRDDDLM=; b=Sf5CXgJAJVBgfbmWIB/1/N4dB37FvGhGcfSF5L1dBSKgdNzKGEsoIMMnPWKv+NPGmW CfcwXKZATG1bC3lelxCnACSWyV7k071fCGhQ57YbwP8caDtvVRlqswKO3OjqkNRathag nDo3hVy0SFnWwuFirpuirnsmu5KL9XW8fhx1QtVhtoAI1GOge4ytm1vHWwVO1vuGu8AL rgzhuZO+EwB4j42ZdRt+/brYhq4+d2IOskfYeUY4B+TPMDN0OE8sm0wiwBr18ExXCpgT uem1kr7o/Br1J/G3hjkdr5WdNQSvcyzqujh8j6LAIXIhwDgdwpvG2YOFTaCR4wzul9e0 blfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761508144; x=1762112944; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=dGAlA6xEEpg5Sg3NpocSMWJ7GFQOTpi3dlaTTRDDDLM=; b=UAfWe/rUeLy6wZFVGqGGos8VzUoPyr6W7DP+EOerEyNwHOQSnMB+IfTs3dA/lail7Y GEmF684Fd6hZ6gmHc65+zU/CRyE/N78M1CfgPZQ6Zz+gfCW50r+LDJfu55kojocTbfWk eLIqAAxcZvOSBYk/9WUGfjLve20+yKm3gaZV41zqzwROtna8Lbp7imS+MvsOvU8W77N+ rPCK1v7Sj1pT9YgHmv1KBKZUF+rHMx8ONlUs6XFPVRcrPbW4rTDK8ZFRq89Lt4V7u8CE lzF6BVxjdoTiY33olz+aUknKMRebHsgE9c16ymoIgfI3Di17qNH9/QV6FeH4BgdJ9xNK bMPw== X-Forwarded-Encrypted: i=1; AJvYcCWuEtkrXQLZkZuMxKLBCCsDEnIqH4BAwXJPYqgQw6fHY/b8Cvup8ICj3I2lUxrldur4+6m8xHfXZN+CiCI=@vger.kernel.org X-Gm-Message-State: AOJu0YyitjxzGqfVW3r/iweOWfi3Bfq3gsYB09xZuerHEHephgyoRWU0 TV6hWOHr1obDNQeSOsQFas65yJTeeCXQkrYymVliIwnXtvuvYWZtiUmz X-Gm-Gg: ASbGncvcB8vdxbDhtw3Pbyu+JOn7mYLkC6AOIaKV0+6Cg5izy7n6o8dqL0bARGz+vic yuj4Pb10MWFbbXYt4JfnP1yGWyAJRKL4vGOhUif5BTrB/mxMsR77ffg/DhFEtrDkJhOMuiG1ETH TVkxXuVua3QCogThdI0sIRkAsTgKg3WjVVyDz7SQjX+K8LLPnPv1MZvACaOQF7J+AU2sQN7SSxf 7INIuBMMsk7SLfplwq4lamh66VYpDwzP27ipLxftGPhizEzX5U0Dq/q24GNiM0Z+lEokn96pQXb HgWuXm3ysl13hyTUvH9wri7zAw+E7CABCyYC5aOWjt/dO5fc7NH54eRl7p+2hOT1T4UmgXuYYy+ xSIdWG/2qCUJ0408Pa4tjcFjQtDeqbZ/4YHkpeIKbSED46Vv/7G9Np1pHjAR+3/CgKZtY4cazxj p40W3K8ZdlPMY7nA== X-Google-Smtp-Source: AGHT+IHxjRQnRW5DZRFV2Qwhcw+akufX9vynEkSIauiFSd7fK9owVylMsihE4r48/PVg7PHb0yVz6Q== X-Received: by 2002:a05:600c:468d:b0:471:95a:60b1 with SMTP id 5b1f17b1804b1-475d2ed6e11mr100007385e9.32.1761508143555; Sun, 26 Oct 2025 12:49:03 -0700 (PDT) Received: from orange.info ([2a02:8010:6606:0:8fa:2ba2:6886:7fe4]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-475dd05098dsm45244265e9.5.2025.10.26.12.49.02 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 26 Oct 2025 12:49:02 -0700 (PDT) From: Hugh Cole-Baker To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: Hugh Cole-Baker , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: rockchip: pwm-fan overlay for NanoPC-T6 Date: Sun, 26 Oct 2025 19:48:40 +0000 Message-ID: <20251026194858.92461-1-sigmaris@gmail.com> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" FriendlyELEC offers an optional heatsink and fan addon for the NanoPC-T6 and T6 LTS. Add an overlay which can be applied if the fan is fitted and configures the fan as an active cooling device for the SoC package. Signed-off-by: Hugh Cole-Baker --- FriendlyELEC heatsink with fan addon: https://www.friendlyelec.com/index.php?route=3Dproduct/product&product_id= =3D305 Vendor DT with trip points and PWM duty cycle values: https://github.com/friendlyarm/kernel-rockchip/blob/4944602540b62f5aad139fe= 602a76cf7c3176128/arch/arm64/boot/dts/rockchip/rk3588-nanopi6-rev01.dts#L75= -L90 arch/arm64/boot/dts/rockchip/Makefile | 9 +++ .../dts/rockchip/rk3588-nanopc-t6-fan.dtso | 78 +++++++++++++++++++ 2 files changed, 87 insertions(+) create mode 100644 arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-fan.dtso diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/ro= ckchip/Makefile index 4cd8ef607f55c..7a67b68a6bb03 100644 --- a/arch/arm64/boot/dts/rockchip/Makefile +++ b/arch/arm64/boot/dts/rockchip/Makefile @@ -178,6 +178,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-jaguar-ethernet= -switch.dtbo dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-jaguar-pre-ict-tester.dtbo dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-mnt-reform2.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-nanopc-t6.dtb +dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-nanopc-t6-fan.dtbo dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-nanopc-t6-lts.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-ok3588-c.dtb dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-orangepi-5-max.dtb @@ -271,6 +272,14 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-jaguar-pre-ict= -tester.dtb rk3588-jaguar-pre-ict-tester-dtbs :=3D rk3588-jaguar.dtb \ rk3588-jaguar-pre-ict-tester.dtbo =20 +dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-nanopc-t6-with-fan.dtb +rk3588-nanopc-t6-with-fan-dtbs :=3D rk3588-nanopc-t6.dtb \ + rk3588-nanopc-t6-fan.dtbo + +dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-nanopc-t6-lts-with-fan.dtb +rk3588-nanopc-t6-lts-with-fan-dtbs :=3D rk3588-nanopc-t6-lts.dtb \ + rk3588-nanopc-t6-fan.dtbo + dtb-$(CONFIG_ARCH_ROCKCHIP) +=3D rk3588-rock-5b-pcie-ep.dtb rk3588-rock-5b-pcie-ep-dtbs :=3D rk3588-rock-5b.dtb \ rk3588-rock-5b-pcie-ep.dtbo diff --git a/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-fan.dtso b/arch/= arm64/boot/dts/rockchip/rk3588-nanopc-t6-fan.dtso new file mode 100644 index 0000000000000..08c4782fb4148 --- /dev/null +++ b/arch/arm64/boot/dts/rockchip/rk3588-nanopc-t6-fan.dtso @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/dts-v1/; +/plugin/; + +#include + +&{/} { + fan: pwm-fan { + compatible =3D "pwm-fan"; + cooling-levels =3D <0 35 64 100 150 255>; + fan-supply =3D <&vcc5v0_sys>; + pwms =3D <&pwm1 0 50000 0>; + #cooling-cells =3D <2>; + }; +}; + +&package_thermal { + polling-delay =3D <1000>; + + trips { + package_fan0: package-fan0 { + temperature =3D <50000>; + hysteresis =3D <2000>; + type =3D "active"; + }; + + package_fan1: package-fan1 { + temperature =3D <55000>; + hysteresis =3D <2000>; + type =3D "active"; + }; + + package_fan2: package-fan2 { + temperature =3D <60000>; + hysteresis =3D <2000>; + type =3D "active"; + }; + + package_fan3: package-fan3 { + temperature =3D <65000>; + hysteresis =3D <2000>; + type =3D "active"; + }; + + package_fan4: package-fan4 { + temperature =3D <70000>; + hysteresis =3D <2000>; + type =3D "active"; + }; + }; + + cooling-maps { + map0 { + trip =3D <&package_fan0>; + cooling-device =3D <&fan THERMAL_NO_LIMIT 1>; + }; + + map1 { + trip =3D <&package_fan1>; + cooling-device =3D <&fan 2 3>; + }; + + map2 { + trip =3D <&package_fan2>; + cooling-device =3D <&fan 3 4>; + }; + + map3 { + trip =3D <&package_fan3>; + cooling-device =3D <&fan 4 5>; + }; + + map4 { + trip =3D <&package_fan4>; + cooling-device =3D <&fan 5 THERMAL_NO_LIMIT>; + }; + }; +}; --=20 2.50.1 (Apple Git-155)