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

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Date:   Sat, 11 Apr 2020 13:32:47 +0530
From:   Ajit Pandey <ajitp@...eaurora.org>
To:     alsa-devel@...a-project.org, broonie@...nel.org,
        devicetree@...r.kernel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, srinivas.kandagatla@...aro.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.com,
        Ajit Pandey <ajitp@...eaurora.org>
Subject: [PATCH 07/11] Documentation: dt-bindings: sound: Add details for new dai properties

Add changes related to new sub node defining MI2S dai's properties. Such
properties needs to be configured via board specific dts files.

Signed-off-by: Ajit Pandey <ajitp@...eaurora.org>
---
 .../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>;
+	};
-- 
1.9.1