The signal from the dual digital microphones connected to the DMIC_BE
takes 30ms to settle after being enabled. Add a dmic-codec with
corresponding wakeup-delay-ms to prevent an initial "pop" sound when
recording with the microphones.
Co-developed-by: Zoran Zhan <zoran.zhan@xxxxxxxxxxxx>
Signed-off-by: Zoran Zhan <zoran.zhan@xxxxxxxxxxxx>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
index efdeca88b8c4e58f0c17825156276babf19af145..6aa59acd77c245e5fcf7044859a5985f503daeb3 100644
--- a/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8390-genio-common.dtsi
@@ -218,6 +218,13 @@ usb_p2_vbus: regulator-9 {
regulator-max-microvolt = <5000000>;
enable-active-high;
};
+
+ dmic_codec: dmic-codec {
+ #sound-dai-cells = <0>;
+ compatible = "dmic-codec";
+ num-channels = <2>;
+ wakeup-delay-ms = <30>;
+ };
};
&adsp {
@@ -974,6 +981,14 @@ codec {
sound-dai = <&pmic 0>;
};
};
+
+ dai-link-1 {
+ link-name = "DMIC_BE";
+
+ codec {
+ sound-dai = <&dmic_codec>;
+ };
+ };
};
&spi2 {
--
2.48.1
