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Diffstat (limited to 'Documentation/devicetree/bindings/sound/cs42l42.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/cs42l42.txt | 7 |
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: |