ARM: dts: r8a7742-iwg21d-q7-dbcm-ca: Add can0 support to camera DB

This patch enables CAN0 interface exposed through connector J4 on the
camera DB.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20200911083615.17377-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
diff --git a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
index 1479ced..961c0f2 100644
--- a/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
+++ b/arch/arm/boot/dts/r8a7742-iwg21d-q7-dbcm-ca.dts
@@ -27,6 +27,12 @@ &avb {
 	status = "disabled";
 };
 
+&can0 {
+	pinctrl-0 = <&can0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &ether {
 	pinctrl-0 = <&ether_pins>;
 	pinctrl-names = "default";
@@ -49,6 +55,11 @@ &hscif0 {
 };
 
 &pfc {
+	can0_pins: can0 {
+		groups = "can0_data_d";
+		function = "can0";
+	};
+
 	ether_pins: ether {
 		groups = "eth_mdio", "eth_rmii";
 		function = "eth";