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dt-bindings: ASoC: xlnx, audio-formatter: Document audio formatter bindings 

Added documentation for audio formatter IP core DT bindings.

Signed-off-by: Maruthi Srinivas Bayyavarapu <maruthi.srinivas.bayyavarapu@xilinx.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Maruthi Srinivas Bayyavarapu 2018-12-21 14:27:27 +05:30 committed by Mark Brown
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Documentation/devicetree/bindings/sound/xlnx,audio-formatter.txt 100644
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Device-Tree bindings for Xilinx PL audio formatter
The IP core supports DMA, data formatting(AES<->PCM conversion)
of audio samples.
Required properties:
- compatible: "xlnx,audio-formatter-1.0"
- interrupt-names: Names specified to list of interrupts in same
order mentioned under "interrupts".
List of supported interrupt names are:
"irq_mm2s" : interrupt from MM2S block
"irq_s2mm" : interrupt from S2MM block
- interrupts-parent: Phandle for interrupt controller.
- interrupts: List of Interrupt numbers.
- reg: Base address and size of the IP core instance.
- clock-names: List of input clocks.
Required elements: "s_axi_lite_aclk", "aud_mclk"
- clocks: Input clock specifier. Refer to common clock bindings.
Example:
audio_ss_0_audio_formatter_0: audio_formatter@80010000 {
compatible = "xlnx,audio-formatter-1.0";
interrupt-names = "irq_mm2s", "irq_s2mm";
interrupt-parent = <&gic>;
interrupts = <0 104 4>, <0 105 4>;
reg = <0x0 0x80010000 0x0 0x1000>;
clock-names = "s_axi_lite_aclk", "aud_mclk";
clocks = <&clk 71>, <&clk_wiz_1 0>;
};