Qualcomm Audio Stream Manager (Q6ASM) binding Q6ASM is one of the APR audio service on Q6DSP. Please refer to qcom,apr.txt for details of the common apr service bindings used by the apr service device. - but must contain the following property: - compatible: Usage: required Value type: <stringlist> Definition: must be "qcom,q6asm-v<MAJOR-NUMBER>.<MINOR-NUMBER>". Or "qcom,q6asm" where the version number can be queried from DSP. example "qcom,q6asm-v2.0" = ASM DAIs (Digial Audio Interface) "dais" subnode of the ASM node represents dai specific configuration - compatible: Usage: required Value type: <stringlist> Definition: must be "qcom,q6asm-dais". - #sound-dai-cells Usage: required Value type: <u32> Definition: Must be 1 == ASM DAI is subnode of "dais" and represent a dai, it includes board specific configuration of each dai. Must contain the following properties. - reg Usage: required Value type: <u32> Definition: Must be dai id - direction: Usage: Required for Compress offload dais Value type: <u32> Definition: Specifies the direction of the dai stream 0 for both tx and rx 1 for only tx (Capture/Encode) 2 for only rx (Playback/Decode) - is-compress-dai: Usage: Required for Compress offload dais Value type: <boolean> Definition: present for Compress offload dais = EXAMPLE q6asm@7 { compatible = "qcom,q6asm"; reg = <APR_SVC_ASM>; q6asmdai: dais { compatible = "qcom,q6asm-dais"; #sound-dai-cells = <1>; mm@0 { reg = <0>; direction = <2>; is-compress-dai; }; }; }; |