1# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/qcom,q6asm-dais.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm Audio Stream Manager (Q6ASM)
8
9maintainers:
10  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
11  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
12
13description:
14  Q6ASM is one of the APR audio services on Q6DSP. Each of its subnodes
15  represent a dai with board specific configuration.
16
17properties:
18  compatible:
19    enum:
20      - qcom,q6asm-dais
21
22  iommus:
23    maxItems: 1
24
25  "#sound-dai-cells":
26    const: 1
27
28  "#address-cells":
29    const: 1
30
31  "#size-cells":
32    const: 0
33
34patternProperties:
35  "^dai@[0-9]+$":
36    type: object
37    description:
38      Q6ASM Digital Audio Interface
39
40    properties:
41      reg:
42        maxItems: 1
43
44      direction:
45        $ref: /schemas/types.yaml#/definitions/uint32
46        enum: [0, 1, 2]
47        description: |
48          The direction of the dai stream::
49           - Q6ASM_DAI_TX_RX (0) for both tx and rx
50           - Q6ASM_DAI_TX (1) for only tx (Capture/Encode)
51           - Q6ASM_DAI_RX (2) for only rx (Playback/Decode)
52
53      is-compress-dai:
54        type: boolean
55        description:
56          Compress offload dai.
57
58    dependencies:
59      is-compress-dai: ["direction"]
60
61    required:
62      - reg
63
64    additionalProperties: false
65
66required:
67  - compatible
68  - "#sound-dai-cells"
69  - "#address-cells"
70  - "#size-cells"
71
72additionalProperties: false
73
74examples:
75  - |
76    #include <dt-bindings/soc/qcom,apr.h>
77    #include <dt-bindings/sound/qcom,q6asm.h>
78
79    apr {
80        compatible = "qcom,apr-v2";
81        qcom,domain = <APR_DOMAIN_ADSP>;
82        #address-cells = <1>;
83        #size-cells = <0>;
84
85        service@7 {
86            compatible = "qcom,q6asm";
87            reg = <APR_SVC_ASM>;
88            qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
89
90            dais {
91                compatible = "qcom,q6asm-dais";
92                iommus = <&apps_smmu 0x1821 0x0>;
93                #address-cells = <1>;
94                #size-cells = <0>;
95                #sound-dai-cells = <1>;
96
97                dai@0 {
98                    reg = <0>;
99                };
100
101                dai@1 {
102                    reg = <1>;
103                };
104
105                dai@2 {
106                    reg = <2>;
107                    is-compress-dai;
108                    direction = <1>;
109                };
110            };
111        };
112    };
113