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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/remoteproc/qcom,smd-edge.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm SMD Edge communication channel nodes
maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
description:
Qualcomm SMD subnode 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.
See also Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
properties:
$nodename:
const: "smd-edge"
interrupts:
maxItems: 1
label:
description:
Name of the edge, used for debugging and identification purposes. The
node name will be used if this is not present.
mboxes:
maxItems: 1
description:
Reference to the mailbox representing the outgoing doorbell in APCS for
this client.
qcom,ipc:
$ref: /schemas/types.yaml#/definitions/phandle-array
items:
- items:
- description: phandle to a syscon node representing the APCS registers
- description: u32 representing offset to the register within the syscon
- description: u32 representing the ipc bit within the register
description:
Three entries specifying the outgoing ipc bit used for signaling the
remote processor.
qcom,smd-edge:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The identifier of the remote processor in the smd channel allocation
table.
qcom,remote-pid:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The identifier for the remote processor as known by the rest of the
system.
required:
- interrupts
- qcom,smd-edge
oneOf:
- required:
- mboxes
- required:
- qcom,ipc
additionalProperties: true
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/mailbox/qcom-ipcc.h>
remoteproc {
// ...
smd-edge {
interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;
qcom,ipc = <&apcs 8 8>;
qcom,smd-edge = <1>;
};
};
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