There are 3 instances of ecap modules that are capable of generating
a pwm when configured in apwm mode. Add DT nodes for these 3 ecap
instances.

Signed-off-by: Lokesh Vutla <redacted>
---
  arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 27 ++++++++++++++++++++++++
  1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 9e762f64b631..42d1d219a3fd 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi

@@ -946,4 +946,31 @@ epwm8: pwm@23080000 {
  		clocks = <&epwm_tbclk 8>, <&k3_clks 94 0>;
  		clock-names = "tbclk", "fck";
  	};
+
+	ecap0: pwm@23100000 {
+		compatible = "ti,am64-ecap", "ti,am3352-ecap";
+		#pwm-cells = <3>;
+		reg = <0x0 0x23100000 0x0 0x60>;
+		power-domains = <&k3_pds 51 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 51 0>;
+		clock-names = "fck";
+	};
+
+	ecap1: pwm@23110000 {
+		compatible = "ti,am64-ecap", "ti,am3352-ecap";
+		#pwm-cells = <3>;
+		reg = <0x0 0x23110000 0x0 0x60>;
+		power-domains = <&k3_pds 52 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 52 0>;
+		clock-names = "fck";
+	};
+
+	ecap2: pwm@23120000 {
+		compatible = "ti,am64-ecap", "ti,am3352-ecap";
+		#pwm-cells = <3>;
+		reg = <0x0 0x23120000 0x0 0x60>;
+		power-domains = <&k3_pds 53 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 53 0>;
+		clock-names = "fck";
+	};
  };