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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
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parentInitial commit. (diff)
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+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
+ 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:
+ Usage: Required for Compress offload dais
+ Value type: <boolean>
+ Definition: present for Compress offload dais
+
+
+= EXAMPLE
+#include <dt-bindings/sound/qcom,q6asm.h>
+
+apr-service@7 {
+ compatible = "qcom,q6asm";
+ reg = <APR_SVC_ASM>;
+ q6asmdai: dais {
+ compatible = "qcom,q6asm-dais";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ dai@0 {
+ reg = <0>;
+ direction = <Q6ASM_DAI_RX>;
+ is-compress-dai;
+ };
+ };
+};