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-rw-r--r-- | Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml | 112 |
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diff --git a/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml b/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml new file mode 100644 index 000000000..8deb8ffb1 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml @@ -0,0 +1,112 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/qcom,q6asm-dais.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Audio Stream Manager (Q6ASM) + +maintainers: + - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> + - Srinivas Kandagatla <srinivas.kandagatla@linaro.org> + +description: + Q6ASM is one of the APR audio services on Q6DSP. Each of its subnodes + represent a dai with board specific configuration. + +properties: + compatible: + enum: + - qcom,q6asm-dais + + iommus: + maxItems: 1 + + "#sound-dai-cells": + const: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^dai@[0-9]+$": + type: object + description: + Q6ASM Digital Audio Interface + + properties: + reg: + maxItems: 1 + + direction: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2] + description: | + The direction of the dai stream:: + - Q6ASM_DAI_TX_RX (0) for both tx and rx + - Q6ASM_DAI_TX (1) for only tx (Capture/Encode) + - Q6ASM_DAI_RX (2) for only rx (Playback/Decode) + + is-compress-dai: + type: boolean + description: + Compress offload dai. + + dependencies: + is-compress-dai: ["direction"] + + required: + - reg + + additionalProperties: false + +required: + - compatible + - "#sound-dai-cells" + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include <dt-bindings/soc/qcom,apr.h> + #include <dt-bindings/sound/qcom,q6asm.h> + + apr { + compatible = "qcom,apr-v2"; + qcom,domain = <APR_DOMAIN_ADSP>; + #address-cells = <1>; + #size-cells = <0>; + + service@7 { + compatible = "qcom,q6asm"; + reg = <APR_SVC_ASM>; + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; + + dais { + compatible = "qcom,q6asm-dais"; + iommus = <&apps_smmu 0x1821 0x0>; + #address-cells = <1>; + #size-cells = <0>; + #sound-dai-cells = <1>; + + dai@0 { + reg = <0>; + }; + + dai@1 { + reg = <1>; + }; + + dai@2 { + reg = <2>; + is-compress-dai; + direction = <1>; + }; + }; + }; + }; |