# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 --- $id: http://devicetree.org/schemas/soc/qcom/qcom,smd.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Qualcomm Shared Memory Driver maintainers: - Andy Gross - Bjorn Andersson - Krzysztof Kozlowski description: The Qualcomm Shared Memory Driver is a FIFO based communication channel for sending data between the various subsystems in Qualcomm platforms. Using the top-level SMD node is deprecated. Instead, the SMD edges are defined directly below the device node representing the respective remote subsystem or remote processor. deprecated: true properties: compatible: const: qcom,smd patternProperties: "^smd-edge|rpm$": $ref: /schemas/remoteproc/qcom,smd-edge.yaml# unevaluatedProperties: false description: Each subnode of the SMD node represents a remote subsystem or a remote processor of some sort - or in SMD language an "edge". The name of the edges are not important. required: - compatible additionalProperties: false examples: # The following example represents a smd node, with one edge representing the # "rpm" subsystem. For the "rpm" subsystem we have a device tied to the # "rpm_request" channel. # NOTE: This is deprecated, represent the RPM using "qcom,rpm-proc" instead. - | #include shared-memory { compatible = "qcom,smd"; rpm { interrupts = ; qcom,ipc = <&apcs 8 0>; qcom,smd-edge = <15>; rpm-requests { compatible = "qcom,rpm-msm8974"; qcom,smd-channels = "rpm_requests"; clock-controller { compatible = "qcom,rpmcc-msm8974", "qcom,rpmcc"; #clock-cells = <1>; }; }; }; };