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From a822d6667a687451cdf65aef66ecc7fa15891205 Mon Sep 17 00:00:00 2001
From: David Knell <david.knell@gmail.com>
Date: Wed, 28 Oct 2020 14:20:56 +0000
Subject: [PATCH] PiFi-40 Devicetree files
Signed-off-by: David Knell <david.knell@gmail.com>
---
arch/arm/boot/dts/overlays/Makefile | 1 +
arch/arm/boot/dts/overlays/README | 6 +++
.../arm/boot/dts/overlays/pifi-40-overlay.dts | 50 +++++++++++++++++++
3 files changed, 57 insertions(+)
create mode 100644 arch/arm/boot/dts/overlays/pifi-40-overlay.dts
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -125,6 +125,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
pca953x.dtbo \
pibell.dtbo \
pifacedigital.dtbo \
+ pifi-40.dtbo \
piglow.dtbo \
piscreen.dtbo \
piscreen2r.dtbo \
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2000,6 +2000,12 @@ Params: spi-present-mask 8-bit in
0-3, which can be configured with JP1 and JP2.
+Name: pifi-40
+Info: Configures the PiFi 40W stereo amplifier
+Load: dtoverlay=pifi-40
+Params: <None>
+
+
Name: piglow
Info: Configures the PiGlow by pimoroni.com
Load: dtoverlay=piglow
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/pifi-40-overlay.dts
@@ -0,0 +1,50 @@
+// Definitions for PiFi-40 Amp
+/dts-v1/;
+/plugin/;
+#include <dt-bindings/gpio/gpio.h>
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target = <&i2s>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@1 {
+ target = <&i2c1>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ tas5711l: audio-codec@1a {
+ compatible = "ti,tas5711";
+ reg = <0x1a>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "Left";
+ status = "okay";
+ };
+
+ tas5711r: audio-codec@1b {
+ compatible = "ti,tas5711";
+ reg = <0x1b>;
+ #sound-dai-cells = <0>;
+ sound-name-prefix = "Right";
+ status = "okay";
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&sound>;
+ pifi_40: __overlay__ {
+ compatible = "pifi,pifi-40";
+ audio-codec = <&tas5711l &tas5711r>;
+ i2s-controller = <&i2s>;
+ pdn-gpios = <&gpio 23 1>;
+ status = "okay";
+ };
+ };
+};
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