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-rw-r--r--dts/Bindings/sound/tlv320aic3x.txt21
1 files changed, 19 insertions, 2 deletions
diff --git a/dts/Bindings/sound/tlv320aic3x.txt b/dts/Bindings/sound/tlv320aic3x.txt
index 9796c46392..20931a63fd 100644
--- a/dts/Bindings/sound/tlv320aic3x.txt
+++ b/dts/Bindings/sound/tlv320aic3x.txt
@@ -1,6 +1,6 @@
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>;
+ };
+};