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Diffstat (limited to 'Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml')
-rw-r--r-- | Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml new file mode 100644 index 000000000..063e595c1 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml @@ -0,0 +1,62 @@ +# 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 <agross@kernel.org> + - Bjorn Andersson <bjorn.andersson@linaro.org> + - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> + +description: + The Qualcomm Shared Memory Driver is a FIFO based communication channel for + sending data between the various subsystems in Qualcomm platforms. + +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. + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + shared-memory { + compatible = "qcom,smd"; + + rpm { + interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>; + 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>; + }; + + }; + }; + }; |