Re: [PATCH 07/11] Documentation: dt-bindings: sound: Add details for new dai properties

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On 11/04/2020 09:02, Ajit Pandey wrote:
Add changes related to new sub node defining MI2S dai's properties. Such
properties needs to be configured via board specific dts files.

+Adding Stephan Gerlhold

Have a look at https://www.spinics.net/lists/alsa-devel/msg107224.html patches from Stephan Gerlhold which has better version of specifying sd line mask and is inline with DSP based solution too.

--srini

Signed-off-by: Ajit Pandey <ajitp@xxxxxxxxxxxxxx>
---
  .../devicetree/bindings/sound/qcom,lpass-cpu.yaml  | 33 ++++++++++++++++++++++
  1 file changed, 33 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
index a87a406..727ec03 100644
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-cpu.yaml
@@ -16,6 +16,8 @@ description: |
    configure Low-Power Audio Interface(LPAIF) core registers across different
    IP versions.
+ See also dt-bindings/sound/qcom,lpass.h.
+
  properties:
    compatible:
      enum:
@@ -69,6 +71,30 @@ properties:
    '#sound-dai-cells':
      const: 1
+ dai-name:
+    - description: Each node represents an MI2S dai and conatins dai specific
+        properties that may change with board layout & dai connections.
+    - type: object
+    - properties:
+      id:
+        - description: dai id among one of value defined in header
+        - type: u32
+      qcom,spkmode-mask:
+        - description: mask defining data lines used for speaker
+        - type: u32
+      qcom,micmode-mask:
+        - description: mask defining data lines used for mic
+        - type: u32
+      qcom,wssrc-mask:
+        - description: mask defining word-select source internal/extrnal on dai
+        - type: u32
+      qcom,loopback-mask:
+        - description: mask defining loopback enable/disable on dai
+        - type: u32
+
+      required:
+        - id
+
  required:
    - compatible
    - reg
@@ -101,3 +127,10 @@ examples:
  	#sound-dai-cells = <1>;
  	qcom,adsp = <&adsp>;
+ prim-mi2s@0 {
+		id = <MI2S_PRIMARY>;
+		qcom,spkmode-mask = <SD1>;
+		qcom,micmode-mask = <SD0>;
+                qcom,wssrc-mask = <INTERNAL>;
+                qcom,loopback-mask = <DISABLE>;
+	};




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