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-rw-r--r--dts/Bindings/sound/rt5640.txt35
1 files changed, 35 insertions, 0 deletions
diff --git a/dts/Bindings/sound/rt5640.txt b/dts/Bindings/sound/rt5640.txt
index 57fe646..e40e489 100644
--- a/dts/Bindings/sound/rt5640.txt
+++ b/dts/Bindings/sound/rt5640.txt
@@ -22,6 +22,41 @@ Optional properties:
- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
+- realtek,dmic1-data-pin
+ 0: dmic1 is not used
+ 1: using IN1P pin as dmic1 data pin
+ 2: using GPIO3 pin as dmic1 data pin
+
+- realtek,dmic2-data-pin
+ 0: dmic2 is not used
+ 1: using IN1N pin as dmic2 data pin
+ 2: using GPIO4 pin as dmic2 data pin
+
+- realtek,jack-detect-source
+ u32. Valid values:
+ 0: jack-detect is not used
+ 1: Use GPIO1 for jack-detect
+ 2: Use JD1_IN4P for jack-detect
+ 3: Use JD2_IN4N for jack-detect
+ 4: Use GPIO2 for jack-detect
+ 5: Use GPIO3 for jack-detect
+ 6: Use GPIO4 for jack-detect
+
+- realtek,jack-detect-not-inverted
+ bool. Normal jack-detect switches give an inverted signal, set this bool
+ in the rare case you've a jack-detect switch which is not inverted.
+
+- realtek,over-current-threshold-microamp
+ u32, micbias over-current detection threshold in µA, valid values are
+ 600, 1500 and 2000µA.
+
+- realtek,over-current-scale-factor
+ u32, micbias over-current detection scale-factor, valid values are:
+ 0: Scale current by 0.5
+ 1: Scale current by 0.75
+ 2: Scale current by 1.0
+ 3: Scale current by 1.5
+
Pins on the device (for linking into audio routes) for RT5639/RT5640:
* DMIC1