diff options
| author | Binbin Zhou <zhoubinbin@loongson.cn> | 2025-06-05 20:34:34 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2025-06-06 18:51:16 +0800 |
| commit | abd000dbaee45fa620ddaeb13757b9a8985ce50f (patch) | |
| tree | 904f26f65caa452fbf57f2e735b0ffeb356535bd | |
| parent | 07aeb50e6c74e59c268ad6460c6b51411bea1759 (diff) | |
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: Yanteng Si <si.yanteng@linux.dev>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/boot/dts/loongson-2k1000-ref.dts | 24 | ||||
| -rw-r--r-- | arch/loongarch/boot/dts/loongson-2k1000.dtsi | 42 |
2 files changed, 65 insertions, 1 deletions
diff --git a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts index 3514ea78f525..78ea995abf1c 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k1000-ref.dts @@ -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"; }; diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi index 8dff2aa52417..1da3beb00f0e 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi @@ -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>; |