ASoC: tas2552: Describe the possible I2C addresses

According to the TAS2552 datasheet the possible I2C addresses are:

0x40 - when ADDR pin is 0
0x41 - when ADDR pin is 1

List the possible values for better clarification.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/Documentation/devicetree/bindings/sound/tas2552.txt b/Documentation/devicetree/bindings/sound/tas2552.txt
index 54c1c87c4ad8..ea8abf08b094 100644
--- a/Documentation/devicetree/bindings/sound/tas2552.txt
+++ b/Documentation/devicetree/bindings/sound/tas2552.txt
@@ -5,7 +5,8 @@ The tas2552 serial control bus communicates through I2C protocols
 Required properties:
         - compatible - One of:
                 "ti,tas2552" - TAS2552
-        - reg -  I2C slave address
+        - reg -  I2C slave address: it can be 0x40 if ADDR pin is 0
+                                    or 0x41 if ADDR pin is 1.
         - supply-*: Required supply regulators are:
                 "vbat"          battery voltage
                 "iovdd"         I/O Voltage