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-rw-r--r--kernel/Documentation/devicetree/bindings/sound/wm8741.txt11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/sound/wm8741.txt b/kernel/Documentation/devicetree/bindings/sound/wm8741.txt
index 74bda58c1..a13315408 100644
--- a/kernel/Documentation/devicetree/bindings/sound/wm8741.txt
+++ b/kernel/Documentation/devicetree/bindings/sound/wm8741.txt
@@ -10,9 +10,20 @@ Required properties:
- reg : the I2C address of the device for I2C, the chip select
number for SPI.
+Optional properties:
+
+ - diff-mode: Differential output mode configuration. Default value for field
+ DIFF in register R8 (MODE_CONTROL_2). If absent, the default is 0, shall be:
+ 0 = stereo
+ 1 = mono left
+ 2 = stereo reversed
+ 3 = mono right
+
Example:
codec: wm8741@1a {
compatible = "wlf,wm8741";
reg = <0x1a>;
+
+ diff-mode = <3>;
};