[PATCH v9 5/5] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc
From: Shenwei Wang <shenwei.wang@nxp.com>
Date: 2026-03-04 21:19:12
Also in:
imx, linux-devicetree, linux-doc, linux-gpio, linux-remoteproc, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
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@nxp.com> --- arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index 9b5d98766512..ad1ef00a1e3d 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi@@ -191,6 +191,31 @@ scmi_sensor: protocol@15 { cm33: remoteproc-cm33 { compatible = "fsl,imx8ulp-cm33"; status = "disabled"; + + rpmsg { + rpmsg-io-channel { + #address-cells = <1>; + #size-cells = <0>; + + rpmsg_gpioa: gpio@0 { + compatible = "rpmsg-gpio"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + }; + + rpmsg_gpiob: gpio@1 { + compatible = "rpmsg-gpio"; + reg = <1>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + }; + }; + }; }; soc: soc@0 {
--
2.43.0