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

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The module is supported, enable it.

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

Reviewed-by: Yanteng Si <si.yanteng@linux.dev>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Binbin Zhou
2025-06-05 20:34:34 +08:00
committed by Huacai Chen
parent 07aeb50e6c
commit abd000dbae
2 changed files with 65 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/loongarch/boot/dts/loongson-2k1000-ref.dts
+24
View File
@@ -5,6 +5,7 @@
/dts-v1/;
#include "dt-bindings/thermal/thermal.h"
#include "loongson-2k1000.dtsi"
/ {
@@ -38,6 +39,13 @@
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 @@
#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
View File
@@ -68,7 +68,7 @@
};
thermal-zones {
cpu-thermal {
cpu_thermal: cpu-thermal {
polling-delay-passive = <1000>;
polling-delay = <5000>;
thermal-sensors = <&tsensor 0>;
@@ -322,6 +322,46 @@
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>;