"fsl,dataline" is added to configure the dataline of SAI. 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). Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> --- Documentation/devicetree/bindings/sound/fsl-sai.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt index c71c5861d787..4c66e6a1a533 100644 --- 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 -- 2.17.1
