LoongArch: dts: Add PWM controller node support

PATCH Applied Binbin Zhou 3 participants 6 messages May 8, 2025 – May 17, 2025

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Binbin Zhou

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2025-05-08 07:02 UTC #0 lore raw

cover LoongArch: dts: Add PWM controller node support

Binbin Zhou (3):
LoongArch: dts: Add PWM support to Loongson-2K0500
LoongArch: dts: Add PWM support to Loongson-2K1000
LoongArch: dts: Add PWM support to Loongson-2K2000

 arch/loongarch/boot/dts/loongson-2k0500.dtsi  | 160 ++++++++++++++++++
 .../boot/dts/loongson-2k1000-ref.dts          |  24 +++
 arch/loongarch/boot/dts/loongson-2k1000.dtsi  |  42 ++++-
 arch/loongarch/boot/dts/loongson-2k2000.dtsi  |  60 +++++++
 4 files changed, 285 insertions(+), 1 deletion(-)

base-commit: b56175973e17e67e3005837346ceb79cc282187a

Signature · 1 line

2.47.1

Binbin Zhou

author

2025-05-08 07:02 UTC #1 lore raw

PATCH 1/3 LoongArch: dts: Add PWM support to Loongson-2K0500

The module is supported, enable it.

Signed-off-by Binbin Zhou <[email protected]>

---
 arch/loongarch/boot/dts/loongson-2k0500.dtsi | 160 +++++++++++++++++++
 1 file changed, 160 insertions(+)

arch/loongarch/boot/dts/loongson-2k0500.dtsi +160 -0

index 3b38ff8853a7..760c60eebb89 100644
@@ -169,6 +169,166 @@ eiointc: interrupt-controller@1fe11600 {
 			interrupts = <3>;
 		};
 
+		pwm@1ff5c000 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c000 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c010 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c010 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c020 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c020 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c030 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c030 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c040 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c040 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c050 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c050 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c060 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c060 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c070 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c070 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c080 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c080 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c090 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c090 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0a0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0a0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0b0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0b0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0c0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0c0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0d0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0d0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0e0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0e0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@1ff5c0f0 {
+			compatible = "loongson,ls2k0500-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x1ff5c0f0 0x0 0x10>;
+			interrupt-parent = <&liointc0>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_APB_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		gmac0: ethernet@1f020000 {
 			compatible = "snps,dwmac-3.70a";
 			reg = <0x0 0x1f020000 0x0 0x10000>;

Signature · 1 line

2.47.1

Binbin Zhou

author

2025-05-08 07:02 UTC #2 lore raw

PATCH 2/3 LoongArch: dts: Add PWM support to Loongson-2K1000

In reply to Binbin Zhou

The module is supported, enable it.
Also, add the pwm-fan and cooling-maps associated with it.

Signed-off-by Binbin Zhou <[email protected]>

---
 .../boot/dts/loongson-2k1000-ref.dts          | 24 +++++++++++
 arch/loongarch/boot/dts/loongson-2k1000.dtsi  | 42 ++++++++++++++++++-
 2 files changed, 65 insertions(+), 1 deletion(-)

arch/loongarch/boot/dts/loongson-2k1000-ref.dts +24 -0

index 3514ea78f525..78ea995abf1c 100644
@@ -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

54 lines not on this page · raw message

Signature · 1 line

2.47.1

Binbin Zhou

author

2025-05-08 07:02 UTC #3 lore raw

PATCH 3/3 LoongArch: dts: Add PWM support to Loongson-2K2000

In reply to Binbin Zhou

The module is supported, enable it.

Signed-off-by Binbin Zhou <[email protected]>

---
 arch/loongarch/boot/dts/loongson-2k2000.dtsi | 60 ++++++++++++++++++++
 1 file changed, 60 insertions(+)

arch/loongarch/boot/dts/loongson-2k2000.dtsi +60 -0

index b4ff55a33e90..9e0411f2754c 100644
@@ -165,6 +165,66 @@ msi: msi-controller@1fe01140 {
 			interrupt-parent = <&eiointc>;
 		};
 
+		pwm@100a0000 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0000 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@100a0100 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0100 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <25 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@100a0200 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0200 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@100a0300 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0300 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@100a0400 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0400 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pwm@100a0500 {
+			compatible = "loongson,ls2k2000-pwm", "loongson,ls7a-pwm";
+			reg = <0x0 0x100a0500 0x0 0x10>;
+			interrupt-parent = <&pic>;
+			interrupts = <39 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk LOONGSON2_MISC_CLK>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		rtc0: rtc@100d0100 {
 			compatible = "loongson,ls2k2000-rtc", "loongson,ls7a-rtc";
 			reg = <0x0 0x100d0100 0x0 0x100>;

Signature · 1 line

2.47.1

Yanteng Si

Reviewed-by on the v1 series

2025-05-15 01:23 UTC #4 lore raw

In reply to Binbin Zhou

Quoted 11 lines · Binbin Zhou

Binbin Zhou (3):
LoongArch: dts: Add PWM support to Loongson-2K0500
LoongArch: dts: Add PWM support to Loongson-2K1000
LoongArch: dts: Add PWM support to Loongson-2K2000
  arch/loongarch/boot/dts/loongson-2k0500.dtsi  | 160 ++++++++++++++++++
  .../boot/dts/loongson-2k1000-ref.dts          |  24 +++
  arch/loongarch/boot/dts/loongson-2k1000.dtsi  |  42 ++++-
  arch/loongarch/boot/dts/loongson-2k2000.dtsi  |  60 +++++++
  4 files changed, 285 insertions(+), 1 deletion(-)

For the patch sets:

Reviewed-by Yanteng Si <[email protected]>

Thanks,
Yanteng

Quoted 3 lines

base-commit: b56175973e17e67e3005837346ceb79cc282187a

Huacai Chen

maintainer Applied

2025-05-17 09:34 UTC #5 lore raw

In reply to Binbin Zhou

Applied, thanks.

Huacai

Quoted 19 lines · Binbin Zhou

Binbin Zhou (3):
LoongArch: dts: Add PWM support to Loongson-2K0500
LoongArch: dts: Add PWM support to Loongson-2K1000
LoongArch: dts: Add PWM support to Loongson-2K2000
 arch/loongarch/boot/dts/loongson-2k0500.dtsi  | 160 ++++++++++++++++++
 .../boot/dts/loongson-2k1000-ref.dts          |  24 +++
 arch/loongarch/boot/dts/loongson-2k1000.dtsi  |  42 ++++-
 arch/loongarch/boot/dts/loongson-2k2000.dtsi  |  60 +++++++
 4 files changed, 285 insertions(+), 1 deletion(-)
base-commit: b56175973e17e67e3005837346ceb79cc282187a --
2.47.1