linux-kernel - [PATCH v1 13/13] arm64: dts: rockchip: rock-5a: add fan support

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Message-Id: <20230710165228.105983-14-sebastian.reichel@collabora.com>
Date:   Mon, 10 Jul 2023 18:52:28 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     linux-rockchip@...ts.infradead.org,
        Heiko Stuebner <heiko@...ech.de>
Cc:     Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        kernel@...labora.com
Subject: [PATCH v1 13/13] arm64: dts: rockchip: rock-5a: add fan support

Add the necessary DT changes for the Rock 5A board to enable support for
the PWM controlled heat sink fan.

Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
index 156c93b22382..ad6fec5514a0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -47,6 +47,14 @@ io-led {
 		};
 	};
 
+	fan: pwm-fan {
+		compatible = "pwm-fan";
+		cooling-levels = <0 95 145 195 255>;
+		fan-supply = <&vcc_5v0>;
+		pwms = <&pwm3 0 50000 0>;
+		#cooling-cells = <2>;
+	};
+
 	vcc12v_dcin: vcc12v-dcin {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -286,6 +294,12 @@ rtl8211f_rst: rtl8211f-rst {
 	};
 };
 
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm3m1_pins>;
+	status = "okay";
+};
+
 &saradc {
 	vref-supply = <&avcc_1v8_s0>;
 	status = "okay";
-- 
2.40.1