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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/remoteproc/qcom,smd-edge.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Qualcomm SMD Edge communication channel nodes8 9maintainers:10 - Bjorn Andersson <bjorn.andersson@linaro.org>11 12description:13 Qualcomm SMD subnode represents a remote subsystem or a remote processor of14 some sort - or in SMD language an "edge". The name of the edges are not15 important.16 17 In turn, subnodes of the "edges" represent devices tied to SMD channels on18 that "edge". The names of the devices are not important. The properties of19 these nodes are defined by the individual bindings for the SMD devices.20 See also Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml21 22properties:23 $nodename:24 const: smd-edge25 26 apr:27 $ref: /schemas/soc/qcom/qcom,apr.yaml#28 required:29 - qcom,smd-channels30 description:31 Qualcomm APR/GPR (Asynchronous/Generic Packet Router)32 33 fastrpc:34 $ref: /schemas/misc/qcom,fastrpc.yaml#35 required:36 - qcom,smd-channels37 description:38 Qualcomm FastRPC39 40 interrupts:41 maxItems: 142 43 label:44 description:45 Name of the edge, used for debugging and identification purposes. The46 node name will be used if this is not present.47 48 mboxes:49 maxItems: 150 description:51 Reference to the mailbox representing the outgoing doorbell in APCS for52 this client.53 54 qcom,ipc:55 $ref: /schemas/types.yaml#/definitions/phandle-array56 items:57 - items:58 - description: phandle to a syscon node representing the APCS registers59 - description: u32 representing offset to the register within the syscon60 - description: u32 representing the ipc bit within the register61 description:62 Three entries specifying the outgoing ipc bit used for signaling the63 remote processor.64 deprecated: true65 66 qcom,smd-edge:67 $ref: /schemas/types.yaml#/definitions/uint3268 description:69 The identifier of the remote processor in the smd channel allocation70 table.71 72 qcom,remote-pid:73 $ref: /schemas/types.yaml#/definitions/uint3274 description:75 The identifier for the remote processor as known by the rest of the76 system.77 78 rpm-requests:79 $ref: /schemas/soc/qcom/qcom,smd-rpm.yaml#80 required:81 - qcom,smd-channels82 description:83 Qualcomm Resource Power Manager (RPM) over SMD.84 85 wcnss:86 $ref: /schemas/soc/qcom/qcom,wcnss.yaml87 required:88 - qcom,smd-channels89 description:90 Qualcomm WCNSS for Bluetooth, WiFi and FM radio.91 92required:93 - interrupts94 - qcom,smd-edge95 96oneOf:97 - required:98 - mboxes99 - required:100 - qcom,ipc101 102additionalProperties: false103 104examples:105 - |106 #include <dt-bindings/interrupt-controller/arm-gic.h>107 #include <dt-bindings/mailbox/qcom-ipcc.h>108 109 remoteproc {110 // ...111 112 smd-edge {113 interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;114 115 mboxes = <&apcs 8>;116 qcom,smd-edge = <1>;117 };118 };119