ASoC: Add documentation for pcm3060 property out-single-ended

Output of pcm3060 codec may be configured as single-ended or differential

Signed-off-by: Kirill Marinushkin <kmarinushkin@birdec.tech>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/pcm3060.txt b/Documentation/devicetree/bindings/sound/pcm3060.txt
index 90fcb8523099c7e80ae8f91a2f8b90b57d0a27a7..97de66932d44d22f3a5664e5550780093b412873 100644 (file)
--- a/Documentation/devicetree/bindings/sound/pcm3060.txt
+++ b/Documentation/devicetree/bindings/sound/pcm3060.txt
@@ -9,9 +9,15 @@ Required properties:
 - reg : the I2C address of the device for I2C, the chip select
         number for SPI.
 
+Optional properties:
+
+- ti,out-single-ended: "true" if output is single-ended;
+                       "false" or not specified if output is differential.
+
 Examples:
 
        pcm3060: pcm3060@46 {
                 compatible = "ti,pcm3060";
                 reg = <0x46>;
+                ti,out-single-ended = "true";
        };