[PATCH v5 5/6] arm64: dts: rockchip: add PWM nodes to RK3576 SoC dtsi

Nicolas Frattaroli
2026-04-20T13:54:10Z

The RK3576 SoC features three distinct PWM controllers, with variable
numbers of channels. Add each channel as a separate node to the SoC's
device tree, as they don't really overlap in register ranges.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
---
arch/arm64/boot/dts/rockchip/rk3576.dtsi | 208 +++++++++++++++++++++++++++++++
1 file changed, 208 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3576.dtsi b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
index e12a2a0cfb89..55d6b103c329 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3576.dtsi
@@ -1032,6 +1032,32 @@ uart1: serial@27310000 {
status = "disabled";
};

+ pwm0_2ch_0: pwm@27330000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x27330000 0x0 0x1000>;
+ clocks = <&cru CLK_PMU1PWM>, <&cru PCLK_PMU1PWM>,
+ <&cru CLK_PMU1PWM_OSC>, <&cru CLK_PMU1PWM_RC>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0m0_ch0>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm0_2ch_1: pwm@27331000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x27331000 0x0 0x1000>;
+ clocks = <&cru CLK_PMU1PWM>, <&cru PCLK_PMU1PWM>,
+ <&cru CLK_PMU1PWM_OSC>, <&cru CLK_PMU1PWM_RC>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0m0_ch1>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
pmu: power-management@27380000 {
compatible = "rockchip,rk3576-pmu", "syscon", "simple-mfd";
reg = <0x0 0x27380000 0x0 0x800>;
@@ -2630,6 +2656,188 @@ uart9: serial@2adc0000 {
status = "disabled";
};

+ pwm1_6ch_0: pwm@2add0000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add0000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch0>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1_6ch_1: pwm@2add1000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add1000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch1>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1_6ch_2: pwm@2add2000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add2000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch2>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1_6ch_3: pwm@2add3000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add3000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch3>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1_6ch_4: pwm@2add4000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add4000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch4>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm1_6ch_5: pwm@2add5000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2add5000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM1>, <&cru PCLK_PWM1>,
+ <&cru CLK_OSC_PWM1>, <&cru CLK_RC_PWM1>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm1m0_ch5>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_0: pwm@2ade0000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade0000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch0>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_1: pwm@2ade1000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade1000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch1>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_2: pwm@2ade2000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade2000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch2>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_3: pwm@2ade3000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade3000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch3>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_4: pwm@2ade4000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade4000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch4>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_5: pwm@2ade5000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade5000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch5>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_6: pwm@2ade6000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade6000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch6>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
+ pwm2_8ch_7: pwm@2ade7000 {
+ compatible = "rockchip,rk3576-pwm";
+ reg = <0x0 0x2ade7000 0x0 0x1000>;
+ clocks = <&cru CLK_PWM2>, <&cru PCLK_PWM2>,
+ <&cru CLK_OSC_PWM2>, <&cru CLK_RC_PWM2>;
+ clock-names = "pwm", "pclk", "osc", "rc";
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm2m0_ch7>;
+ #pwm-cells = <3>;
+ status = "disabled";
+ };
+
saradc: adc@2ae00000 {
compatible = "rockchip,rk3576-saradc", "rockchip,rk3588-saradc";
reg = <0x0 0x2ae00000 0x0 0x10000>;

--
2.53.0