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ASoC: pcm3168a: Add binding document for pcm3168a codec 

Add binding document for Texas Instruments pcm3168a codec

Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Damien.Horsley 2015-12-08 15:58:59 +00:00 committed by Mark Brown
parent d13871b353
commit ccfa2bef0f
1 changed files with 48 additions and 0 deletions
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Documentation/devicetree/bindings/sound/ti,pcm3168a.txt 100644
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Texas Instruments pcm3168a DT bindings
This driver supports both SPI and I2C bus access for this codec
Required properties:
- compatible: "ti,pcm3168a"
- clocks : Contains an entry for each entry in clock-names
- clock-names : Includes the following entries:
"scki" The system clock
- VDD1-supply : Digital power supply regulator 1 (+3.3V)
- VDD2-supply : Digital power supply regulator 2 (+3.3V)
- VCCAD1-supply : ADC power supply regulator 1 (+5V)
- VCCAD2-supply : ADC power supply regulator 2 (+5V)
- VCCDA1-supply : DAC power supply regulator 1 (+5V)
- VCCDA2-supply : DAC power supply regulator 2 (+5V)
For required properties on SPI/I2C, consult SPI/I2C device tree documentation
Examples:
i2c0: i2c0@0 {
...
pcm3168a: audio-codec@44 {
compatible = "ti,pcm3168a";
reg = <0x44>;
clocks = <&clk_core CLK_AUDIO>;
clock-names = "scki";
VDD1-supply = <&supply3v3>;
VDD2-supply = <&supply3v3>;
VCCAD1-supply = <&supply5v0>;
VCCAD2-supply = <&supply5v0>;
VCCDA1-supply = <&supply5v0>;
VCCDA2-supply = <&supply5v0>;
pinctrl-names = "default";
pinctrl-0 = <&dac_clk_pin>;
};
};