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Mon, 20 Jan 2025 11:23:11 -0800 (PST) From: Alexey Charkov Date: Mon, 20 Jan 2025 23:22:47 +0400 Subject: [PATCH 2/2] arm64: dts: rockchip: Enable automatic fan control on Radxa Rock 5C Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250120-rock-5c-fan-v1-2-5fb8446c981b@gmail.com> References: <20250120-rock-5c-fan-v1-0-5fb8446c981b@gmail.com> In-Reply-To: <20250120-rock-5c-fan-v1-0-5fb8446c981b@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Alexey Charkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1737400976; l=1557; i=alchark@gmail.com; s=20240125; h=from:subject:message-id; bh=//LokAOrRA/EeaT7c38MIMn9xv0OF0OdXdgFumo2L3E=; b=b//UblCwgSfsCubs+uRP/+gxXObDUfoo+IKG9h27aNXw/OVa7YQkqZJFdMFxG4gh+/RMZt7JV trcFo0mQya+A1AmnYJ1eIpQ3nvSieGqS7QJX7s7iuErEwIhD6cuvSeQ X-Developer-Key: i=alchark@gmail.com; a=ed25519; pk=xRO8VeD3J5jhwe0za0aHt2LDumQr8cm0Ls7Jz3YGimk= Add the necessary cooling map to enable the kernel's thermal subsystem to manage the fan speed automatically depending on the overall SoC package temperature on Radxa Rock 5C Signed-off-by: Alexey Charkov --- arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts | 32 +++++++++++++++++++++++- 1 file changed, 31 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts index 1b66a69cf0f8795d7305852fa7fef3d0672ada7f..6e56d7704cbe0dc06242cb39df56b2fc9d6bc774 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts @@ -68,7 +68,7 @@ led-1 { }; }; - fan { + fan: fan { compatible = "pwm-fan"; #cooling-cells = <2>; cooling-levels = <0 24 44 64 128 192 255>; @@ -417,6 +417,36 @@ rgmii_phy1: ethernet-phy@1 { }; }; +&package_thermal { + polling-delay = <1000>; + + trips { + package_fan0: package-fan0 { + temperature = <55000>; + hysteresis = <2000>; + type = "active"; + }; + + package_fan1: package-fan1 { + temperature = <65000>; + hysteresis = <2000>; + type = "active"; + }; + }; + + cooling-maps { + map0 { + trip = <&package_fan0>; + cooling-device = <&fan THERMAL_NO_LIMIT 1>; + }; + + map1 { + trip = <&package_fan1>; + cooling-device = <&fan 2 THERMAL_NO_LIMIT>; + }; + }; +}; + &pcie2x1l2 { pinctrl-names = "default"; pinctrl-0 = <&pcie20x1_2_perstn_m0>; -- 2.48.1