From: Jiri Prchal <jiri.prchal@aksignal.cz>
Date: Thu, 8 Apr 2021 06:07:41 +0000 (+0200)
Subject: ASoC: codecs: tlv320aic3x: add SPI to the DT binding
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=38ec3006eccb46a6db6f4a36536f78db8e9042ac;p=linux.git

ASoC: codecs: tlv320aic3x: add SPI to the DT binding

Added note and example of SPI support.

Signed-off-by: Jiri Prchal <jiri.prchal@aksignal.cz>
Link: https://lore.kernel.org/r/20210408060741.6879-1-jiri.prchal@aksignal.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
index 9796c46392620..20931a63fd646 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
+++ b/Documentation/devicetree/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>;
+	};
+};