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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,apr.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm APR/GPR (Asynchronous/Generic Packet Router) binding
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ This binding describes the Qualcomm APR/GPR, APR/GPR is a IPC protocol for
+ communication between Application processor and QDSP. APR/GPR is mainly
+ used for audio/voice services on the QDSP.
+
+properties:
+ compatible:
+ enum:
+ - qcom,apr-v2
+ - qcom,gpr
+
+ qcom,apr-domain:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3, 4, 5, 6, 7]
+ description:
+ Selects the processor domain for apr
+ 1 = APR simulator
+ 2 = PC Domain
+ 3 = Modem Domain
+ 4 = ADSP Domain
+ 5 = Application processor Domain
+ 6 = Modem2 Domain
+ 7 = Application Processor2 Domain
+ deprecated: true
+
+ qcom,domain:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 7
+ description:
+ Selects the processor domain for apr
+ 1 = APR simulator
+ 2 = PC Domain
+ 3 = Modem Domain
+ 4 = ADSP Domain
+ 5 = Application processor Domain
+ 6 = Modem2 Domain
+ 7 = Application Processor2 Domain
+ Selects the processor domain for gpr
+ 1 = Modem Domain
+ 2 = Audio DSP Domain
+ 3 = Application Processor Domain
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+#APR/GPR Services
+patternProperties:
+ "^service@[1-9a-d]$":
+ type: object
+ description:
+ APR/GPR node's client devices use subnodes for desired static port services.
+
+ properties:
+ compatible:
+ enum:
+ - qcom,q6core
+ - qcom,q6asm
+ - qcom,q6afe
+ - qcom,q6adm
+ - qcom,q6apm
+ - qcom,q6prm
+
+ reg:
+ minimum: 1
+ maximum: 13
+ description:
+ APR Service ID
+ 3 = DSP Core Service
+ 4 = Audio Front End Service.
+ 5 = Voice Stream Manager Service.
+ 6 = Voice processing manager.
+ 7 = Audio Stream Manager Service.
+ 8 = Audio Device Manager Service.
+ 9 = Multimode voice manager.
+ 10 = Core voice stream.
+ 11 = Core voice processor.
+ 12 = Ultrasound stream manager.
+ 13 = Listen stream manager.
+ GPR Service ID
+ 1 = Audio Process Manager Service
+ 2 = Proxy Resource Manager Service.
+ 3 = AMDB Service.
+ 4 = Voice processing manager.
+
+ qcom,protection-domain:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description: protection domain service name and path for apr service
+ possible values are
+ "avs/audio", "msm/adsp/audio_pd".
+ "kernel/elf_loader", "msm/modem/wlan_pd".
+ "tms/servreg", "msm/adsp/audio_pd".
+ "tms/servreg", "msm/modem/wlan_pd".
+ "tms/servreg", "msm/slpi/sensor_pd".
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "^.*@[0-9a-f]+$":
+ type: object
+ description:
+ Service based devices like clock controllers or digital audio interfaces.
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - qcom,domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/soc/qcom,apr.h>
+ apr {
+ compatible = "qcom,apr-v2";
+ qcom,domain = <APR_DOMAIN_ADSP>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ q6core: service@3 {
+ compatible = "qcom,q6core";
+ reg = <APR_SVC_ADSP_CORE>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+ };
+
+ q6afe: service@4 {
+ compatible = "qcom,q6afe";
+ reg = <APR_SVC_AFE>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+ };
+
+ q6asm: service@7 {
+ compatible = "qcom,q6asm";
+ reg = <APR_SVC_ASM>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+ };
+
+ q6adm: service@8 {
+ compatible = "qcom,q6adm";
+ reg = <APR_SVC_ADM>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+ };
+ };
+
+ - |
+ #include <dt-bindings/soc/qcom,gpr.h>
+ gpr {
+ compatible = "qcom,gpr";
+ qcom,domain = <GPR_DOMAIN_ID_ADSP>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ service@1 {
+ compatible = "qcom,q6apm";
+ reg = <GPR_APM_MODULE_IID>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+ };
+ };