205 lines
5.0 KiB
YAML
205 lines
5.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/soc/qcom/qcom,apr.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Qualcomm APR/GPR (Asynchronous/Generic Packet Router)
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maintainers:
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- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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description: |
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This binding describes the Qualcomm APR/GPR, APR/GPR is a IPC protocol for
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communication between Application processor and QDSP. APR/GPR is mainly
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used for audio/voice services on the QDSP.
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properties:
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compatible:
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enum:
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- qcom,apr
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- qcom,apr-v2
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- qcom,gpr
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power-domains:
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maxItems: 1
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qcom,apr-domain:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [1, 2, 3, 4, 5, 6, 7]
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description:
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Selects the processor domain for apr
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1 = APR simulator
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2 = PC Domain
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3 = Modem Domain
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4 = ADSP Domain
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5 = Application processor Domain
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6 = Modem2 Domain
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7 = Application Processor2 Domain
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deprecated: true
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qcom,domain:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 1
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maximum: 7
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description:
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Selects the processor domain for apr
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1 = APR simulator
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2 = PC Domain
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3 = Modem Domain
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4 = ADSP Domain
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5 = Application processor Domain
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6 = Modem2 Domain
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7 = Application Processor2 Domain
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Selects the processor domain for gpr
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1 = Modem Domain
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2 = Audio DSP Domain
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3 = Application Processor Domain
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qcom,glink-channels:
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$ref: /schemas/types.yaml#/definitions/string-array
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description: Channel name used for the communication
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maxItems: 1
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qcom,intents:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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description:
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List of (size, amount) pairs describing what intents should be
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preallocated for this virtual channel. This can be used to tweak the
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default intents available for the channel to meet expectations of the
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remote.
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qcom,smd-channels:
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$ref: /schemas/types.yaml#/definitions/string-array
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description: Channel name used for the communication
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items:
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- const: apr_audio_svc
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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"^service@[1-9a-d]$":
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type: object
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$ref: /schemas/soc/qcom/qcom,apr-services.yaml
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additionalProperties: true
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description:
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APR/GPR static port services.
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properties:
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compatible:
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enum:
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- qcom,q6core
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- qcom,q6asm
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- qcom,q6afe
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- qcom,q6adm
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- qcom,q6apm
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- qcom,q6prm
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required:
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- compatible
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- qcom,domain
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allOf:
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- if:
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properties:
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compatible:
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enum:
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- qcom,gpr
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then:
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properties:
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qcom,glink-channels:
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items:
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- const: adsp_apps
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power-domains: false
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else:
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properties:
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qcom,glink-channels:
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items:
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- const: apr_audio_svc
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- if:
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required:
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- qcom,glink-channels
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then:
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properties:
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qcom,smd-channels: false
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- if:
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required:
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- qcom,smd-channels
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then:
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properties:
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qcom,glink-channels: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/soc/qcom,apr.h>
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apr {
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compatible = "qcom,apr-v2";
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qcom,domain = <APR_DOMAIN_ADSP>;
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qcom,glink-channels = "apr_audio_svc";
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qcom,intents = <512 20>;
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#address-cells = <1>;
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#size-cells = <0>;
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q6core: service@3 {
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compatible = "qcom,q6core";
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reg = <APR_SVC_ADSP_CORE>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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};
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service@4 {
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compatible = "qcom,q6afe";
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reg = <APR_SVC_AFE>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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clock-controller {
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compatible = "qcom,q6afe-clocks";
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#clock-cells = <2>;
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};
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dais {
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compatible = "qcom,q6afe-dais";
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#address-cells = <1>;
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#size-cells = <0>;
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#sound-dai-cells = <1>;
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/* ... */
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};
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/* ... */
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};
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};
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- |
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#include <dt-bindings/soc/qcom,gpr.h>
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gpr {
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compatible = "qcom,gpr";
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qcom,domain = <GPR_DOMAIN_ID_ADSP>;
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qcom,glink-channels = "adsp_apps";
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qcom,intents = <512 20>;
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#address-cells = <1>;
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#size-cells = <0>;
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service@1 {
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compatible = "qcom,q6apm";
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reg = <GPR_APM_MODULE_IID>;
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#sound-dai-cells = <0>;
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qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
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dais {
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compatible = "qcom,q6apm-dais";
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iommus = <&apps_smmu 0x1801 0x0>;
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};
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bedais {
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compatible = "qcom,q6apm-lpass-dais";
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#sound-dai-cells = <1>;
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};
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};
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};
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