From 4b26aad69c65e141e7ad5187c558d20304eb4bd8 Mon Sep 17 00:00:00 2001
From: Aaron Shaw <shawaj@gmail.com>
Date: Sat, 2 Jan 2021 02:34:03 +0000
Subject: [PATCH] overlays: add wm8960-soundcard overlay
add overlay for waveshare wm8960 simple-audio-card
Change-type: patch
Signed-off-by: Aaron Shaw <shawaj@gmail.com>
---
arch/arm/boot/dts/overlays/Makefile | 3 +-
arch/arm/boot/dts/overlays/README | 7 ++
.../dts/overlays/wm8960-soundcard-overlay.dts | 82 +++++++++++++++++++
3 files changed, 91 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -210,7 +210,8 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
w1-gpio.dtbo \
w1-gpio-pullup.dtbo \
w5500.dtbo \
- wittypi.dtbo
+ wittypi.dtbo \
+ wm8960-soundcard.dtbo
targets += dtbs dtbs_install
targets += $(dtbo-y)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -3073,6 +3073,13 @@ Params: led_gpio GPIO for
"default-on")
+Name: wm8960-soundcard
+Info: Overlay for the Waveshare wm8960 soundcard
+Load: dtoverlay=wm8960-soundcard,<param>=<val>
+Params: alsaname Changes the card name in ALSA
+ compatible Changes the codec compatibility
+
+
Troubleshooting
===============
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/wm8960-soundcard-overlay.dts
@@ -0,0 +1,82 @@
+// Definitions for Waveshare WM8960 https://github.com/waveshare/WM8960-Audio-HAT
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target = <&i2s>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target-path="/";
+ __overlay__ {
+ wm8960_mclk: wm8960_mclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <12288000>;
+ };
+ };
+ };
+ fragment@2 {
+ target = <&i2c1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ wm8960: wm8960 {
+ compatible = "wlf,wm8960";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ AVDD-supply = <&vdd_5v0_reg>;
+ DVDD-supply = <&vdd_3v3_reg>;
+ };
+ };
+ };
+
+
+ fragment@3 {
+ target = <&sound>;
+ slave_overlay: __overlay__ {
+ compatible = "simple-audio-card";
+ simple-audio-card,format = "i2s";
+ simple-audio-card,name = "wm8960-soundcard";
+ status = "okay";
+
+ simple-audio-card,widgets =
+ "Microphone", "Mic Jack",
+ "Line", "Line In",
+ "Line", "Line Out",
+ "Speaker", "Speaker",
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "Headphone Jack", "HP_L",
+ "Headphone Jack", "HP_R",
+ "Speaker", "SPK_LP",
+ "Speaker", "SPK_LN",
+ "LINPUT1", "Mic Jack",
+ "LINPUT3", "Mic Jack",
+ "RINPUT1", "Mic Jack",
+ "RINPUT2", "Mic Jack";
+
+ simple-audio-card,cpu {
+ sound-dai = <&i2s>;
+ };
+ dailink0_slave: simple-audio-card,codec {
+ sound-dai = <&wm8960>;
+ clocks = <&wm8960_mclk>;
+ clock-names = "mclk";
+ };
+ };
+ };
+
+ __overrides__ {
+ alsaname = <&slave_overlay>,"simple-audio-card,name";
+ compatible = <&wm8960>,"compatible";
+ };
+};