boards: renesas: Add PWM support for Renesas RZ/A3UL

Add PWM support for board Renesas RZ/A3UL-SMARC

Signed-off-by: Hieu Nguyen <[email protected]>
Signed-off-by: Tien Nguyen <[email protected]>

Author: Hieu Nguyen

boards/renesas/rza3ul_smarc/rza3ul_smarc-pinctrl.dtsi

@@ -15,4 +15,16 @@
 			slew-rate = "fast";
 		};
 	};
+
+	/omit-if-no-ref/ mtu1_pins: mtu1 {
+		mtu1-pinmux {
+			pinmux = <RZA_PINMUX(PORT_01, 0, 4)>; /* MTIOCA */
+		};
+	};
+
+	/omit-if-no-ref/ mtu3_pins: mtu3 {
+		mtu3-pinmux {
+			pinmux = <RZA_PINMUX(PORT_04, 2, 4)>; /* MTIOCA */
+		};
+	};
 };

boards/renesas/rza3ul_smarc/rza3ul_smarc.yaml

@@ -8,6 +8,7 @@ toolchain:
 supported:
   - uart
   - gpio
+  - pwm
 testing:
   ignore_tags:
     - bluetooth