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Diffstat (limited to 'Documentation/devicetree/bindings/sound/fsl-sai.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/fsl-sai.txt | 66 |
1 files changed, 41 insertions, 25 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt index 4956b14d4b06..044e5d76e2dd 100644 --- a/Documentation/devicetree/bindings/sound/fsl-sai.txt +++ b/Documentation/devicetree/bindings/sound/fsl-sai.txt @@ -5,32 +5,48 @@ which provides a synchronous audio interface that supports fullduplex serial interfaces with frame synchronization such as I2S, AC97, TDM, and codec/DSP interfaces. - Required properties: -- compatible: Compatible list, contains "fsl,vf610-sai" or "fsl,imx6sx-sai". -- reg: Offset and length of the register set for the device. -- clocks: Must contain an entry for each entry in clock-names. -- clock-names : Must include the "bus" for register access and "mclk1" "mclk2" - "mclk3" for bit clock and frame clock providing. -- dmas : Generic dma devicetree binding as described in - Documentation/devicetree/bindings/dma/dma.txt. -- dma-names : Two dmas have to be defined, "tx" and "rx". -- pinctrl-names: Must contain a "default" entry. -- pinctrl-NNN: One property must exist for each entry in pinctrl-names. - See ../pinctrl/pinctrl-bindings.txt for details of the property values. -- big-endian: Boolean property, required if all the FTM_PWM registers - are big-endian rather than little-endian. -- lsb-first: Configures whether the LSB or the MSB is transmitted first for - the fifo data. If this property is absent, the MSB is transmitted first as - default, or the LSB is transmitted first. -- fsl,sai-synchronous-rx: This is a boolean property. If present, indicating - that SAI will work in the synchronous mode (sync Tx with Rx) which means - both the transimitter and receiver will send and receive data by following - receiver's bit clocks and frame sync clocks. -- fsl,sai-asynchronous: This is a boolean property. If present, indicating - that SAI will work in the asynchronous mode, which means both transimitter - and receiver will send and receive data by following their own bit clocks - and frame sync clocks separately. + + - compatible : Compatible list, contains "fsl,vf610-sai" or + "fsl,imx6sx-sai". + + - reg : Offset and length of the register set for the device. + + - clocks : Must contain an entry for each entry in clock-names. + + - clock-names : Must include the "bus" for register access and + "mclk1", "mclk2", "mclk3" for bit clock and frame + clock providing. + - dmas : Generic dma devicetree binding as described in + Documentation/devicetree/bindings/dma/dma.txt. + + - dma-names : Two dmas have to be defined, "tx" and "rx". + + - pinctrl-names : Must contain a "default" entry. + + - pinctrl-NNN : One property must exist for each entry in + pinctrl-names. See ../pinctrl/pinctrl-bindings.txt + for details of the property values. + + - big-endian : Boolean property, required if all the FTM_PWM + registers are big-endian rather than little-endian. + + - lsb-first : Configures whether the LSB or the MSB is transmitted + first for the fifo data. If this property is absent, + the MSB is transmitted first as default, or the LSB + is transmitted first. + + - fsl,sai-synchronous-rx: This is a boolean property. If present, indicating + that SAI will work in the synchronous mode (sync Tx + with Rx) which means both the transimitter and the + receiver will send and receive data by following + receiver's bit clocks and frame sync clocks. + + - fsl,sai-asynchronous: This is a boolean property. If present, indicating + that SAI will work in the asynchronous mode, which + means both transimitter and receiver will send and + receive data by following their own bit clocks and + frame sync clocks separately. Note: - If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the |