Commit abd000db authored by Binbin Zhou's avatar Binbin Zhou Committed by Huacai Chen
Browse files

LoongArch: dts: Add PWM support to Loongson-2K1000 



The module is supported, enable it.

Also, add the pwm-fan and cooling-maps associated with it.

Reviewed-by: default avatarYanteng Si <si.yanteng@linux.dev>
Signed-off-by: default avatarBinbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 07aeb50e

arch/loongarch/boot/dts/loongson-2k1000-ref.dts

+24 −0
Original line number Diff line number Diff line
@@ -5,6 +5,7 @@ 


/dts-v1/;



#include "dt-bindings/thermal/thermal.h"

#include "loongson-2k1000.dtsi"



/ {
@@ -38,6 +39,13 @@ linux,cma { 
			linux,cma-default;

		};

	};



	fan0: pwm-fan {

		compatible = "pwm-fan";

		cooling-levels = <255 153 85 25>;

		pwms = <&pwm1 0 100000 0>;

		#cooling-cells = <2>;

	};

};



&gmac0 {
@@ -92,6 +100,22 @@ &spi0 { 
	#size-cells = <0>;

};



&pwm1 {

	status = "okay";



	pinctrl-0 = <&pwm1_pins_default>;

	pinctrl-names = "default";

};



&cpu_thermal {

	cooling-maps {

		map0 {

			trip = <&cpu_alert>;

			cooling-device = <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;

		};

	};

};



&ehci0 {

	status = "okay";

};

arch/loongarch/boot/dts/loongson-2k1000.dtsi

+41 −1
Original line number Diff line number Diff line
@@ -68,7 +68,7 @@ i2c-gpio-1 { 
	};



	thermal-zones {

		cpu-thermal {

		cpu_thermal: cpu-thermal {

			polling-delay-passive = <1000>;

			polling-delay = <5000>;

			thermal-sensors = <&tsensor 0>;
@@ -322,6 +322,46 @@ i2c3: i2c@1fe21800 { 
			status = "disabled";

		};



		pwm@1fe22000 {

			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";

			reg = <0x0 0x1fe22000 0x0 0x10>;

			interrupt-parent = <&liointc0>;

			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;

			clocks = <&clk LOONGSON2_APB_CLK>;

			#pwm-cells = <3>;

			status = "disabled";

		};



		pwm1: pwm@1fe22010 {

			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";

			reg = <0x0 0x1fe22010 0x0 0x10>;

			interrupt-parent = <&liointc0>;

			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;

			clocks = <&clk LOONGSON2_APB_CLK>;

			#pwm-cells = <3>;

			status = "disabled";

		};



		pwm@1fe22020 {

			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";

			reg = <0x0 0x1fe22020 0x0 0x10>;

			interrupt-parent = <&liointc0>;

			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;

			clocks = <&clk LOONGSON2_APB_CLK>;

			#pwm-cells = <3>;

			status = "disabled";

		};



		pwm@1fe22030 {

			compatible = "loongson,ls2k1000-pwm", "loongson,ls7a-pwm";

			reg = <0x0 0x1fe22030 0x0 0x10>;

			interrupt-parent = <&liointc0>;

			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;

			clocks = <&clk LOONGSON2_APB_CLK>;

			#pwm-cells = <3>;

			status = "disabled";

		};



		pmc: power-management@1fe27000 {

			compatible = "loongson,ls2k1000-pmc", "loongson,ls2k0500-pmc", "syscon";

			reg = <0x0 0x1fe27000 0x0 0x58>;