Add the Khadas MCU node with active FAN thermal nodes for all the
Khadas VIM3 variants.

Signed-off-by: Neil Armstrong <narmstr...@baylibre.com>
---
 .../boot/dts/amlogic/meson-khadas-vim3.dtsi   | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi 
b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
index 094ecf2222bb..3325e54ea690 100644
--- a/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-khadas-vim3.dtsi
@@ -183,6 +183,23 @@
        hdmi-phandle = <&hdmi_tx>;
 };
 
+&cpu_thermal {
+       trips {
+               cpu_active: cpu-active {
+                       temperature = <80000>; /* millicelsius */
+                       hysteresis = <2000>; /* millicelsius */
+                       type = "active";
+               };
+       };
+
+       cooling-maps {
+               map {
+                       trip = <&cpu_active>;
+                       cooling-device = <&khadas_mcu THERMAL_NO_LIMIT 
THERMAL_NO_LIMIT>;
+               };
+       };
+};
+
 &ext_mdio {
        external_phy: ethernet-phy@0 {
                /* Realtek RTL8211F (0x001cc916) */
@@ -222,6 +239,12 @@
        pinctrl-0 = <&i2c_ao_sck_pins>, <&i2c_ao_sda_pins>;
        pinctrl-names = "default";
 
+       khadas_mcu: system-controller@18 {
+               compatible = "khadas,mcu";
+               reg = <0x18>;
+               #cooling-cells = <2>;
+       };
+
        gpio_expander: gpio-controller@20 {
                compatible = "ti,tca6408";
                reg = <0x20>;
-- 
2.22.0

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