boards: gd32e103v_eval: add pwmled

add 1x pwmled.

Signed-off-by: YuLong Yao <[email protected]>

Author: feilongfl

boards/arm/gd32e103v_eval/gd32e103v_eval-pinctrl.dtsi

@@ -11,4 +11,10 @@
 			pinmux = <USART0_TX_PA9_NORMP>, <USART0_RX_PA10_NORMP>;
 		};
 	};
+
+	pwm0_default: pwm0_default {
+		group1 {
+			pinmux = <TIMER0_CH0_PA8_OUT_NORMP>;
+		};
+	};
 };

boards/arm/gd32e103v_eval/gd32e103v_eval.dts

@@ -55,10 +55,20 @@
 		};
 	};
 
+	pwmleds {
+		compatible = "pwm-leds";
+
+		/* NOTE: bridge TIMER0_CH0 (PA8) and LED1 (PC0) */
+		pwm_led: pwm_led {
+			pwms = <&pwm0 0 PWM_POLARITY_NORMAL>;
+		};
+	};
+
 	aliases {
 		led0 = &led2;
 		led1 = &led3;
 		sw0 = &user_key;
+		pwm-led0 = &pwm_led;
 	};
 };
 
@@ -88,3 +98,13 @@
 	pinctrl-0 = <&usart0_default>;
 	pinctrl-names = "default";
 };
+
+&timer0 {
+	status = "okay";
+
+	pwm0: pwm {
+		status = "okay";
+		pinctrl-0 = <&pwm0_default>;
+		pinctrl-names = "default";
+	};
+};