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>;
+ };
