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Diffstat (limited to 'Documentation/devicetree/bindings/sound/xlnx,i2s.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/xlnx,i2s.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/xlnx,i2s.txt b/Documentation/devicetree/bindings/sound/xlnx,i2s.txt new file mode 100644 index 0000000000..5e7c7d5bb6 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/xlnx,i2s.txt @@ -0,0 +1,28 @@ +Device-Tree bindings for Xilinx I2S PL block + +The IP supports I2S based playback/capture audio + +Required property: + - compatible: "xlnx,i2s-transmitter-1.0" for playback and + "xlnx,i2s-receiver-1.0" for capture + +Required property common to both I2S playback and capture: + - reg: Base address and size of the IP core instance. + - xlnx,dwidth: sample data width. Can be any of 16, 24. + - xlnx,num-channels: Number of I2S streams. Can be any of 1, 2, 3, 4. + supported channels = 2 * xlnx,num-channels + +Example: + + i2s_receiver@a0080000 { + compatible = "xlnx,i2s-receiver-1.0"; + reg = <0x0 0xa0080000 0x0 0x10000>; + xlnx,dwidth = <0x18>; + xlnx,num-channels = <1>; + }; + i2s_transmitter@a0090000 { + compatible = "xlnx,i2s-transmitter-1.0"; + reg = <0x0 0xa0090000 0x0 0x10000>; + xlnx,dwidth = <0x18>; + xlnx,num-channels = <1>; + }; |