From 38ec3006eccb46a6db6f4a36536f78db8e9042ac Mon Sep 17 00:00:00 2001 From: Jiri Prchal Date: Thu, 8 Apr 2021 08:07:41 +0200 Subject: [PATCH] ASoC: codecs: tlv320aic3x: add SPI to the DT binding Added note and example of SPI support. Signed-off-by: Jiri Prchal Link: https://lore.kernel.org/r/20210408060741.6879-1-jiri.prchal@aksignal.cz Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/tlv320aic3x.txt | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) 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 @@ -78,3 +78,20 @@ tlv320aic3x: tlv320aic3x@1b { DRVDD-supply = <®ulator>; DVDD-supply = <®ulator>; }; + +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 = <®ulator>; + IOVDD-supply = <®ulator>; + DRVDD-supply = <®ulator>; + DVDD-supply = <®ulator>; + ai3x-ocmv = <0>; + }; +}; -- 2.30.2