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ZTE ZX296702 I2S controller
Required properties:
- compatible : Must be one of:
"zte,zx296718-i2s", "zte,zx296702-i2s"
"zte,zx296702-i2s"
- reg : Must contain I2S core's registers location and length
- clocks : Pairs of phandle and specifier referencing the controller's clocks.
- clock-names: "wclk" for the wclk, "pclk" for the pclk to the I2S interface.
- dmas: Pairs of phandle and specifier for the DMA channel that is used by
the core. The core expects two dma channels for transmit.
- dma-names : Must be "tx" and "rx"
For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
please check:
* resource-names.txt
* clock/clock-bindings.txt
* dma/dma.txt
Example:
i2s0: i2s@b005000 {
#sound-dai-cells = <0>;
compatible = "zte,zx296718-i2s", "zte,zx296702-i2s";
reg = <0x0b005000 0x1000>;
clocks = <&audiocrm AUDIO_I2S0_WCLK>, <&audiocrm AUDIO_I2S0_PCLK>;
clock-names = "wclk", "pclk";
interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&dma 5>, <&dma 6>;
dma-names = "tx", "rx";
status = "okay";
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "zx296702_snd";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&sndcodec>;
simple-audio-card,frame-master = <&sndcodec>;
sndcpu: simple-audio-card,cpu {
sound-dai = <&i2s0>;
};
sndcodec: simple-audio-card,codec {
sound-dai = <&acodec>;
};
};
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