Add bindings required for Multi Button Headset detection.
WCD934x support Headsets with upto 8 buttons including, impedance measurement
on both L/R Headset speakers and cross connection detection.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
.../bindings/sound/qcom,wcd934x.yaml | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
index e8f716b5f875..9b225dbf8b79 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
@@ -77,6 +77,31 @@ properties:
minimum: 1800000
maximum: 2850000
+ qcom,hphl-jack-type-normally-closed:
+ description: Indicates that HPHL jack switch type is normally closed
+ type: boolean
+
+ qcom,ground-jack-type-normally-closed:
+ description: Indicates that Headset Ground switch type is normally closed
+ type: boolean
+
+ qcom,mbhc-headset-vthreshold-microvolt:
+ description: Voltage threshold value for headset detection
+ minimum: 0
+ maximum: 2850000
+
+ qcom,mbhc-headphone-vthreshold-microvolt:
+ description: Voltage threshold value for headphone detection
+ minimum: 0
+ maximum: 2850000
+
+ qcom,mbhc-buttons-vthreshold-microvolt:
+ description:
+ Array of 8 Voltage threshold values corresponding to headset
+ button0 - button7
+ minItems: 8
+ maxItems: 8
+
clock-output-names:
const: mclk
@@ -159,6 +184,11 @@ examples:
qcom,micbias2-microvolt = <1800000>;
qcom,micbias3-microvolt = <1800000>;
qcom,micbias4-microvolt = <1800000>;
+ qcom,hphl-jack-type-normally-closed;
+ qcom,ground-jack-type-normally-closed;
+ qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;
+ qcom,mbhc-headset-vthreshold-microvolt = <1700000>;
+ qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
clock-names = "extclk";
clocks = <&rpmhcc 2>;
--
2.21.0
