arm64: dts: ti: k3-am654-base-board: Enable ECAP PWM

Enable ECAP PWM which is used for LCD backlight.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>

arch/arm64/boot/dts/ti/k3-am654-base-board.dts

@@ -76,6 +76,12 @@ AM65X_IOPAD(0x0008, PIN_INPUT, 0) /* (B21) I2C1_SCL */
 			AM65X_IOPAD(0x000c, PIN_INPUT, 0) /* (E21) I2C1_SDA */
 		>;
 	};
+
+	ecap0_pins_default: ecap0-pins-default {
+		pinctrl-single,pins = <
+			AM65X_IOPAD(0x0010, PIN_INPUT, 0) /* (D21) ECAP0_IN_APWM_OUT */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -125,3 +131,8 @@ &main_i2c2 {
 	pinctrl-0 = <&main_i2c2_pins_default>;
 	clock-frequency = <400000>;
 };
+
+&ecap0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ecap0_pins_default>;
+};