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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)
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
- qcom,apr-v2
- qcom,gpr
power-domains:
maxItems: 1
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
qcom,glink-channels:
$ref: /schemas/types.yaml#/definitions/string-array
description: Channel name used for the communication
maxItems: 1
qcom,intents:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
minItems: 1
maxItems: 32
items:
items:
- description: size of each intent to preallocate
- description: amount of intents to preallocate
minimum: 1
description:
List of (size, amount) pairs describing what intents should be
preallocated for this virtual channel. This can be used to tweak the
default intents available for the channel to meet expectations of the
remote.
qcom,smd-channels:
$ref: /schemas/types.yaml#/definitions/string-array
description: Channel name used for the communication
items:
- const: apr_audio_svc
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
"^service@[1-9a-d]$":
type: object
$ref: /schemas/soc/qcom/qcom,apr-services.yaml
additionalProperties: true
description:
APR/GPR static port services.
properties:
compatible:
enum:
- qcom,q6core
- qcom,q6asm
- qcom,q6afe
- qcom,q6adm
- qcom,q6apm
- qcom,q6prm
required:
- compatible
- qcom,domain
allOf:
- if:
properties:
compatible:
enum:
- qcom,gpr
then:
properties:
qcom,glink-channels:
items:
- const: adsp_apps
power-domains: false
else:
properties:
qcom,glink-channels:
items:
- const: apr_audio_svc
- if:
required:
- qcom,glink-channels
then:
properties:
qcom,smd-channels: false
- if:
required:
- qcom,smd-channels
then:
properties:
qcom,glink-channels: false
additionalProperties: false
examples:
- |
#include <dt-bindings/soc/qcom,apr.h>
apr {
compatible = "qcom,apr-v2";
qcom,domain = <APR_DOMAIN_ADSP>;
qcom,glink-channels = "apr_audio_svc";
qcom,intents = <512 20>;
#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";
};
service@4 {
compatible = "qcom,q6afe";
reg = <APR_SVC_AFE>;
qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
clock-controller {
compatible = "qcom,q6afe-clocks";
#clock-cells = <2>;
};
dais {
compatible = "qcom,q6afe-dais";
#address-cells = <1>;
#size-cells = <0>;
#sound-dai-cells = <1>;
/* ... */
};
/* ... */
};
};
- |
#include <dt-bindings/soc/qcom,gpr.h>
gpr {
compatible = "qcom,gpr";
qcom,domain = <GPR_DOMAIN_ID_ADSP>;
qcom,glink-channels = "adsp_apps";
qcom,intents = <512 20>;
#address-cells = <1>;
#size-cells = <0>;
service@1 {
compatible = "qcom,q6apm";
reg = <GPR_APM_MODULE_IID>;
#sound-dai-cells = <0>;
qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
dais {
compatible = "qcom,q6apm-dais";
iommus = <&apps_smmu 0x1801 0x0>;
};
bedais {
compatible = "qcom,q6apm-lpass-dais";
#sound-dai-cells = <1>;
};
};
};
|
