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Diffstat (limited to 'Documentation/devicetree/bindings/sound/fsl,rpmsg-i2s.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,rpmsg-i2s.txt | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,rpmsg-i2s.txt b/Documentation/devicetree/bindings/sound/fsl,rpmsg-i2s.txt new file mode 100644 index 000000000000..27de48eb2519 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,rpmsg-i2s.txt @@ -0,0 +1,22 @@ +Freescale rpmsg i2s interface. + +The rpmsg i2s is based on RPMSG that used communicating with M4 core, +which provides a synchronous audio interface that supports fullduplex +serial interfaces with frame synchronization such as I2S. + +Required properties: + + - compatible : Compatible list, contains "fsl,imx7ulp-rpmsg-i2s". + "fsl,imx8mq-rpmsg-i2s", "fsl,imx8qxp-rpmsg-i2s" + "fsl,imx8qm-rpmsg-i2s" + + - fsl,audioindex : This is an index indicating the audio device index in + the M4 side. + +Example: +rpmsg_i2s: rpmsg-i2s { + compatible = "fsl,imx7ulp-rpmsg-i2s"; + /* the audio device index in m4 domain */ + fsl,audioindex = <0> ; + status = "okay"; +}; |