[PATCH v7 4/4] arm64: dts: imx8ulp: Add rpmsg node under imx_rproc
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From: Shenwei Wang <shenwei.wang@nxp.com>
Date: 2026-02-10 17:08:58
Also in:
imx, linux-devicetree, linux-doc, linux-gpio, linux-remoteproc, lkml
Subsystem:
arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Revision v7 of 14 in this series.
Revisions (14)
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..93846435c6c1 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 = "rpmsg-gpio"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + #interrupt-cells = <2>; + interrupt-controller; + interrupt-parent = <&rpmsg_gpioa>; + }; + + rpmsg_gpiob: gpio@1 { + compatible = "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