arm64: dts: meson: Enable active coling using gpio-fan on Odroid N2/N2+

Odroid N2/N2+ support active cooling via gpio-fan controller.
Add fan controls and tip point for cpu and ddr thermal sensor
on this boards.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20221021050906.1158-1-linux.amoon@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index fd3fa82e4c3305366162c8acc02c7cae7c210de3..667d2b7749244e52c6d9720b4af8a4cd6230aba1 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -39,6 +39,14 @@
                reset-gpios = <&gpio BOOT_12 GPIO_ACTIVE_LOW>;
        };
 
+       fan: gpio-fan {
+               compatible = "gpio-fan";
+               gpios = <&gpio_ao GPIOAO_10 GPIO_ACTIVE_HIGH>;
+               /* Using Dummy Speed */
+               gpio-fan,speed-map = <0 0>, <1 1>;
+               #cooling-cells = <2>;
+       };
+
        leds {
                compatible = "gpio-leds";
 
@@ -410,6 +418,40 @@
        clock-latency = <50000>;
 };
 
+&cpu_thermal {
+       trips {
+               cpu_active: cpu-active {
+                       temperature = <60000>; /* millicelsius */
+                       hysteresis = <2000>; /* millicelsius */
+                       type = "active";
+               };
+       };
+
+       cooling-maps {
+               map {
+                       trip = <&cpu_active>;
+                       cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+               };
+       };
+};
+
+&ddr_thermal {
+       trips {
+               ddr_active: ddr-active {
+                       temperature = <60000>; /* millicelsius */
+                       hysteresis = <2000>; /* millicelsius */
+                       type = "active";
+               };
+       };
+
+       cooling-maps {
+               map {
+                       trip = <&ddr_active>;
+                       cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+               };
+       };
+};
+
 &ext_mdio {
        external_phy: ethernet-phy@0 {
                /* Realtek RTL8211F (0x001cc916) */