[PATCH v16 5/5] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc

[Shenwei Wang]

From: Shenwei Wang <shenwei.wang at nxp.com>

Add the RPMSG bus node along with its GPIO subnodes to the device
tree.

Enable remote device communication and GPIO control via RPMSG on
the i.MX platform.

Signed-off-by: Shenwei Wang <shenwei.wang at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index c6d1bb9edf38..81fb36b48f20 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
@@ -190,6 +190,29 @@ scmi_sensor: protocol at 15 {
 	cm33: remoteproc-cm33 {
 		compatible = "fsl,imx8ulp-cm33";
 		status = "disabled";
+
+		rpmsg {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			rpmsg_gpioa: gpio at 0 {
+				compatible = "rpmsg-gpio";
+				reg = <0>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				#interrupt-cells = <2>;
+				interrupt-controller;
+			};
+
+			rpmsg_gpiob: gpio at 1 {
+				compatible = "rpmsg-gpio";
+				reg = <1>;
+				gpio-controller;
+				#gpio-cells = <2>;
+				#interrupt-cells = <2>;
+				interrupt-controller;
+			};
+		};
 	};
 
 	soc: soc at 0 {
-- 
2.43.0