mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-19 13:48:06 +00:00
957a0921e2
Add DT overlay to allow using the ReSpeaker 2-mic hat connected to
the 26-pin header of the BananaPi BPi-R3.
Supported sample formats: S16_LE, S24_LE, S32_LE
Supported sample rates: 8/12/16/24/32/48/96/192 kHz
| BPi-R3 | ReSpeaker 2-mic
Signal | 26-pin | 40-pin
----------+----------+-------------------
VCC 5V | 2 | 2
I2C SDA | 3 | 3
I2C SCL | 5 | 5
GND | 6 | 6
PCM CLK | 12 | 12
PCM FS | 15 | 35
PCM DIN | 26 | 38
GND | 25 | 39
PCM DOUT | 22 | 40
Once connected, install the driver and tell U-Boot to apply the DT
overlay:
opkg kmod-sound-soc-mt7986-wm8960
fw_setenv bootconf_base "config-mt7986a-bananapi-bpi-r3#mt7986a-bananapi-bpi-r3-respeaker-2mics"
reboot
To setup the ReSpeaker for Stereo out on the Headphone plug:
amixer sset 'Right Output Mixer PCM' on
amixer sset 'Left Output Mixer PCM' on
amixer sset 'PCM Playback -6dB' off
amixer sset 'O018 I150_Switch' on
amixer sset 'O019 I151_Switch' on
amixer sset 'O124 I032_Switch' on
amixer sset 'O125 I033_Switch' on
amixer sset 'Headphone' 121
amixer sset 'Playback' 255
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
66 lines
1.1 KiB
Diff
66 lines
1.1 KiB
Diff
--- /dev/null
|
|
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-respeaker-2mics.dtso
|
|
@@ -0,0 +1,62 @@
|
|
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
|
|
+/*
|
|
+ * Copyright (C) 2023 MediaTek Inc.
|
|
+ * Author: Maso Huang <Maso.Huang@mediatek.com>
|
|
+ */
|
|
+
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "bananapi,bpi-r3", "mediatek,mt7986a";
|
|
+
|
|
+ fragment@0 {
|
|
+ target-path = "/";
|
|
+ __overlay__ {
|
|
+ sound_wm8960 {
|
|
+ compatible = "mediatek,mt7986-wm8960-sound";
|
|
+ audio-routing = "Headphone", "HP_L",
|
|
+ "Headphone", "HP_R",
|
|
+ "LINPUT1", "AMIC",
|
|
+ "RINPUT1", "AMIC";
|
|
+
|
|
+ status = "okay";
|
|
+
|
|
+ platform {
|
|
+ sound-dai = <&afe>;
|
|
+ };
|
|
+
|
|
+ codec {
|
|
+ sound-dai = <&wm8960>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@1 {
|
|
+ target = <&i2c0>;
|
|
+ __overlay__ {
|
|
+ pinctrl-names = "default";
|
|
+ pinctrl-0 = <&i2c_pins>;
|
|
+ clock-frequency = <400000>;
|
|
+ status = "okay";
|
|
+
|
|
+ wm8960: wm8960@1a {
|
|
+ compatible = "wlf,wm8960";
|
|
+ reg = <0x1a>;
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@2 {
|
|
+ target = <&pio>;
|
|
+ __overlay__ {
|
|
+ i2c_pins: i2c-pins-3-4 {
|
|
+ mux {
|
|
+ function = "i2c";
|
|
+ groups = "i2c";
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+ };
|
|
+};
|