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-rw-r--r-- | Documentation/devicetree/bindings/sound/pcm512x.txt | 52 |
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diff --git a/Documentation/devicetree/bindings/sound/pcm512x.txt b/Documentation/devicetree/bindings/sound/pcm512x.txt new file mode 100644 index 000000000..3aae3b41b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/pcm512x.txt @@ -0,0 +1,52 @@ +PCM512x audio CODECs + +These devices support both I2C and SPI (configured with pin strapping +on the board). + +Required properties: + + - compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141" or + "ti,pcm5142" + + - reg : the I2C address of the device for I2C, the chip select + number for SPI. + + - AVDD-supply, DVDD-supply, and CPVDD-supply : power supplies for the + device, as covered in bindings/regulator/regulator.txt + +Optional properties: + + - clocks : A clock specifier for the clock connected as SCLK. If this + is absent the device will be configured to clock from BCLK. If pll-in + and pll-out are specified in addition to a clock, the device is + configured to accept clock input on a specified gpio pin. + + - pll-in, pll-out : gpio pins used to connect the pll using <1> + through <6>. The device will be configured for clock input on the + given pll-in pin and PLL output on the given pll-out pin. An + external connection from the pll-out pin to the SCLK pin is assumed. + +Examples: + + pcm5122: pcm5122@4c { + compatible = "ti,pcm5122"; + reg = <0x4c>; + + AVDD-supply = <®_3v3_analog>; + DVDD-supply = <®_1v8>; + CPVDD-supply = <®_3v3>; + }; + + + pcm5142: pcm5142@4c { + compatible = "ti,pcm5142"; + reg = <0x4c>; + + AVDD-supply = <®_3v3_analog>; + DVDD-supply = <®_1v8>; + CPVDD-supply = <®_3v3>; + + clocks = <&sck>; + pll-in = <3>; + pll-out = <6>; + }; |