Add PDM/DSD/dataline configuration support

Merge series from Shengjiu Wang <shengjiu.wang@nxp.com>: Support PDM format and DSD format. Add new dts property to configure dataline. The SAI has multiple successive FIFO registers, but in some use case the required dataline/FIFOs are not successive.
mariux64 · Jun 28, 2022 · 6ed91f5 · 6ed91f5
2 parents 1e0ec03 + e3f4e5b
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diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
@@ -49,6 +49,14 @@ Required properties:
 			  receive data by following their own bit clocks and
 			  frame sync clocks separately.
 
+  - fsl,dataline        : configure the dataline. it has 3 value for each configuration
+                          first one means the type: I2S(1) or PDM(2)
+                          second one is dataline mask for 'rx'
+                          third one is dataline mask for 'tx'.
+                          for example: fsl,dataline = <1 0xff 0xff 2 0xff 0x11>;
+                          it means I2S type rx mask is 0xff, tx mask is 0xff, PDM type
+                          rx mask is 0xff, tx mask is 0x11 (dataline 1 and 4 enabled).
+
 Optional properties:
 
   - big-endian		: Boolean property, required if all the SAI