[PATCH v3 4/4] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc
From: Shenwei Wang <shenwei.wang@nxp.com>
Date: 2025-10-09 22:27:51
Also in:
imx, linux-devicetree, 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 | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
index 13b01f3aa2a4..6ab1c12a3bc1 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi@@ -191,6 +191,33 @@ 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 = "fsl,imx-rpmsg-gpio"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + interrupt-parent = <&rpmsg_gpioa>; + }; + + rpmsg_gpiob: gpio@1 { + compatible = "fsl,imx-rpmsg-gpio"; + reg = <1>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + interrupt-parent = <&rpmsg_gpiob>; + }; + }; + }; }; soc: soc@0 {
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2.43.0