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From 55b3c295a6dd32de589bcd38c771748773e2d0d2 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Sat, 9 Dec 2017 21:45:12 +0000
Subject: [PATCH 139/454] overlays: Add applepi-dac overlay
See: https://github.com/raspberrypi/linux/issues/2302
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 6 ++
.../boot/dts/overlays/applepi-dac-overlay.dts | 57 +++++++++++++++++++
3 files changed, 64 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -11,6 +11,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
allo-digione.dtbo \
allo-piano-dac-pcm512x-audio.dtbo \
allo-piano-dac-plus-pcm512x-audio.dtbo \
+ applepi-dac.dtbo \
at86rf233.dtbo \
audioinjector-addons.dtbo \
audioinjector-wm8731-audio.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -337,6 +337,12 @@ Params: 24db_digital_gain Allow ga
better voice quality. (default Off)
+Name: applepi-dac
+Info: Configures the Orchard Audio ApplePi-DAC audio card
+Load: dtoverlay=applepi-dac
+Params: <None>
+
+
Name: at86rf233
Info: Configures the Atmel AT86RF233 802.15.4 low-power WPAN transceiver,
connected to spi0.0
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/applepi-dac-overlay.dts
@@ -0,0 +1,57 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+ compatible = "brcm,bcm2708";
+
+ fragment@0 {
+ target = <&sound>;
+ __overlay__ {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "ApplePi-DAC";
+
+ status = "okay";
+
+ playback_link: simple-audio-card,dai-link@1 {
+ format = "i2s";
+
+ p_cpu_dai: cpu {
+ sound-dai = <&i2s>;
+ dai-tdm-slot-num = <2>;
+ dai-tdm-slot-width = <32>;
+ };
+
+ p_codec_dai: codec {
+ sound-dai = <&codec_out>;
+ };
+ };
+ };
+ };
+
+ fragment@1 {
+ target-path = "/";
+ __overlay__ {
+ codec_out: pcm1794a-codec {
+ #sound-dai-cells = <0>;
+ compatible = "ti,pcm1794a";
+ status = "okay";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&i2s>;
+ __overlay__ {
+ #sound-dai-cells = <0>;
+ status = "okay";
+ };
+ };
+};
+
+/*
+ Written by: Leonid Ayzenshtat
+ Company: Orchard Audio (www.orchardaudio.com)
+
+ compile with:
+ dtc -@ -H epapr -O dtb -o ApplePi-DAC.dtbo -W no-unit_address_vs_reg ApplePi-DAC.dts
+*/
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