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ASoC: add hi6210-i2s DT bindings 

Adds DT bindings documentation for the hi6210-i2s driver.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
John Stultz 2017-03-31 15:05:59 -07:00 committed by Mark Brown
parent a5de5b74a5
commit 9e615f63cb
1 changed files with 34 additions and 0 deletions
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Documentation/devicetree/bindings/sound/hisilicon,hi6210-i2s.txt Normal file
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* Hisilicon 6210 i2s controller
Required properties:
- compatible: should be one of the following:
- "hisilicon,hi6210-i2s"
- reg: physical base address of the i2s controller unit and length of
memory mapped region.
- interrupts: should contain the i2s interrupt.
- clocks: a list of phandle + clock-specifier pairs, one for each entry
in clock-names.
- clock-names: should contain following:
- "dacodec"
- "i2s-base"
- dmas: DMA specifiers for tx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt
- dma-names: should be "tx" and "rx"
- hisilicon,sysctrl-syscon: phandle to sysctrl syscon
- #sound-dai-cells: Should be set to 1 (for multi-dai)
Example for the hi6210 i2s controller:
i2s0: i2s@f7118000{
compatible = "hisilicon,hi6210-i2s";
reg = <0x0 0xf7118000 0x0 0x8000>; /* i2s unit */
interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>; /* 155 "DigACodec_intr"-32 */
clocks = <&sys_ctrl HI6220_DACODEC_PCLK>,
<&sys_ctrl HI6220_BBPPLL0_DIV>;
clock-names = "dacodec", "i2s-base";
dmas = <&dma0 15 &dma0 14>;
dma-names = "rx", "tx";
hisilicon,sysctrl-syscon = <&sys_ctrl>;
#sound-dai-cells = <1>;
};