boards: shields: Support OV7670 DVP 20-pin shield on EK-RA8D1 board

Support OV7670 DVP 20-pin shield on the EK-RA8D1 board

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

Author: KhanhNguyen-RVC

boards/shields/dvp_20pin_ov7670/boards/ek_ra8d1.overlay

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2025 Renesas Electronics Corporation
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pwm3 {
+	status = "okay";
+};
+
+&cam_clock {
+	status = "okay";
+};
+
+&dvp_20pin_i2c {
+	clock-frequency = <DT_FREQ_K(400)>;
+};
+
+&dvp_20pin_interface {
+	swap-8bits;
+	swap-16bits;
+	swap-32bits;
+
+	port {
+		dvp_20pin_ep_in: endpoint {
+			hsync-sample = <1>;
+			vsync-sample = <1>;
+		};
+	};
+};

boards/shields/dvp_20pin_ov7670/dvp_20pin_ov7670.overlay

@@ -12,11 +12,14 @@
 };
 
 &dvp_20pin_i2c {
+	status = "okay";
+
 	ov7670: ov7670@21 {
 		compatible = "ovti,ov7670";
 		reg = <0x21>;
 		reset-gpios = <&dvp_20pin_connector DVP_20PIN_PEN GPIO_ACTIVE_HIGH>;
 		pwdn-gpios = <&dvp_20pin_connector DVP_20PIN_PDN GPIO_ACTIVE_HIGH>;
+		status = "okay";
 
 		port {
 			ov7670_ep_out: endpoint {
@@ -32,6 +35,10 @@
 	port {
 		dvp_20pin_ep_in: endpoint {
 			remote-endpoint-label = "ov7670_ep_out";
+			bus-width = <8>;
+			hsync-active = <1>;
+			vsync-active = <1>;
+			pclk-sample = <1>;
 		};
 	};
 };