Add the necessary DT changes for the Rock 5B board to enable support for
the PWM controlled heat sink fan.
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@xxxxxxxxxxxxx>
Reviewed-by: Christopher Obbard <chris.obbard@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index 95805cb0adfa..bd74d9da2c17 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -17,6 +17,14 @@ chosen {
stdout-path = "serial2:1500000n8";
};
+ fan: pwm-fan {
+ compatible = "pwm-fan";
+ cooling-levels = <0 95 145 195 255>;
+ fan-supply = <&vcc5v0_sys>;
+ pwms = <&pwm1 0 50000 0>;
+ #cooling-cells = <2>;
+ };
+
vcc5v0_sys: vcc5v0-sys-regulator {
compatible = "regulator-fixed";
regulator-name = "vcc5v0_sys";
@@ -27,6 +35,10 @@ vcc5v0_sys: vcc5v0-sys-regulator {
};
};
+&pwm1 {
+ status = "okay";
+};
+
&sdhci {
bus-width = <8>;
no-sdio;
--
2.40.0
