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linux/Documentation/devicetree/bindings/sound/pcm512x.txt
Joerg Schambacher 736b884a7b ASoC: pcm512x: Adds bindings for TAS575x devices
The TAS5754/6 power amplifiers use the same pcm512x driver with
only minor restictions described in the bindings document.

Signed-off-by: Joerg Schambacher <joerg.hifiberry@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230929150555.405388-1-joerg.hifiberry@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-02 19:42:46 +01:00

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PCM512x and TAS575x audio CODECs/amplifiers
These devices support both I2C and SPI (configured with pin strapping
on the board). The TAS575x devices only support I2C.
Required properties:
- compatible : One of "ti,pcm5121", "ti,pcm5122", "ti,pcm5141",
"ti,pcm5142", "ti,tas5754" or "ti,tas5756"
- 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.
Caution: the TAS-desvices only support gpios 1,2 and 3
Examples:
pcm5122: pcm5122@4c {
compatible = "ti,pcm5122";
reg = <0x4c>;
AVDD-supply = <&reg_3v3_analog>;
DVDD-supply = <&reg_1v8>;
CPVDD-supply = <&reg_3v3>;
};
pcm5142: pcm5142@4c {
compatible = "ti,pcm5142";
reg = <0x4c>;
AVDD-supply = <&reg_3v3_analog>;
DVDD-supply = <&reg_1v8>;
CPVDD-supply = <&reg_3v3>;
clocks = <&sck>;
pll-in = <3>;
pll-out = <6>;
};