On Fri, Jun 17, 2022 at 03:44:36PM +0800, Shengjiu Wang wrote: > "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). You mean 0 and 4 enabled? Or 1 and 4? How many 3 cell entries can you have? Rob
