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-rw-r--r--Documentation/devicetree/bindings/sound/cs42l42.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/cs42l42.txt b/Documentation/devicetree/bindings/sound/cs42l42.txt
index 7dfaa2ab906f..5d416fdaf023 100644
--- a/Documentation/devicetree/bindings/sound/cs42l42.txt
+++ b/Documentation/devicetree/bindings/sound/cs42l42.txt
@@ -81,6 +81,13 @@ Optional properties:
< x1 x2 x3 x4 >
Default = < 15 8 4 1>
+ - cirrus,hs-bias-sense-disable: This is boolean property. If present the
+ HSBIAS sense is disabled. Configures HSBIAS output current sense through
+ the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce
+ the potential pop noise during the headset plug out slowly. But on some
+ platforms ESD voltage will affect it causing test to fail, especially
+ with CTIA headset type. For different hardware setups, a designer might
+ want to tweak default behavior.
Example: