Unverified Commit 38ec3006 authored by Jiri Prchal's avatar Jiri Prchal Committed by Mark Brown
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ASoC: codecs: tlv320aic3x: add SPI to the DT binding 



Added note and example of SPI support.

Signed-off-by: default avatarJiri Prchal <jiri.prchal@aksignal.cz>
Link: https://lore.kernel.org/r/20210408060741.6879-1-jiri.prchal@aksignal.cz


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b186e7c1

Documentation/devicetree/bindings/sound/tlv320aic3x.txt

+19 −2
Original line number Diff line number Diff line 
Texas Instruments - tlv320aic3x Codec module



The tlv320aic3x serial control bus communicates through I2C protocols

The tlv320aic3x serial control bus communicates through both I2C and SPI bus protocols



Required properties:
@@ -63,7 +63,7 @@ CODEC input pins for other compatible codecs: 


The pins can be used in referring sound node's audio-routing property.



Example:

I2C example:



#include <dt-bindings/gpio/gpio.h>
@@ -78,3 +78,20 @@ tlv320aic3x: tlv320aic3x@1b { 
	DRVDD-supply = <&regulator>;

	DVDD-supply = <&regulator>;

};



SPI example:



spi0: spi@f0000000 {

	tlv320aic3x: codec@0 {

		compatible = "ti,tlv320aic3x";

		reg = <0>; /* CS number */

		#sound-dai-cells = <0>;

		spi-max-frequency = <1000000>;



		AVDD-supply = <&regulator>;

		IOVDD-supply = <&regulator>;

		DRVDD-supply = <&regulator>;

		DVDD-supply = <&regulator>;

		ai3x-ocmv = <0>;

	};

};