mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
b6344859b9
This adds the Document for Freescale SAI driver under Documentation/devicetree/bindings/sound/. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
Freescale Synchronous Audio Interface (SAI).
|
|
|
|
The SAI is based on I2S module that used communicating with audio codecs,
|
|
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".
|
|
- 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 "sai" entry.
|
|
- 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-regs: If this property is absent, the little endian mode will
|
|
be in use as default, or the big endian mode will be in use for all the
|
|
device registers.
|
|
- big-endian-data: If this property is absent, the little endian mode will
|
|
be in use as default, or the big endian mode will be in use for all the
|
|
fifo data.
|
|
|
|
Example:
|
|
sai2: sai@40031000 {
|
|
compatible = "fsl,vf610-sai";
|
|
reg = <0x40031000 0x1000>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_sai2_1>;
|
|
clocks = <&clks VF610_CLK_SAI2>;
|
|
clock-names = "sai";
|
|
dma-names = "tx", "rx";
|
|
dmas = <&edma0 0 VF610_EDMA_MUXID0_SAI2_TX>,
|
|
<&edma0 0 VF610_EDMA_MUXID0_SAI2_RX>;
|
|
big-endian-regs;
|
|
big-endian-data;
|
|
};
|