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92 lines
2.2 KiB
Diff
92 lines
2.2 KiB
Diff
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From 5dd5b4625a4435f64ee6a1c9f47e3609e771f14b Mon Sep 17 00:00:00 2001
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From: David Knell <david.knell@gmail.com>
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Date: Wed, 28 Oct 2020 14:20:56 +0000
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Subject: [PATCH] PiFi-40 Devicetree files
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Signed-off-by: David Knell <david.knell@gmail.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 6 +++
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.../arm/boot/dts/overlays/pifi-40-overlay.dts | 50 +++++++++++++++++++
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3 files changed, 57 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/pifi-40-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -125,6 +125,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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pca953x.dtbo \
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pibell.dtbo \
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pifacedigital.dtbo \
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+ pifi-40.dtbo \
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piglow.dtbo \
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piscreen.dtbo \
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piscreen2r.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -2000,6 +2000,12 @@ Params: spi-present-mask 8-bit in
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0-3, which can be configured with JP1 and JP2.
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+Name: pifi-40
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+Info: Configures the PiFi 40W stereo amplifier
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+Load: dtoverlay=pifi-40
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+Params: <None>
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+
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+
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Name: piglow
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Info: Configures the PiGlow by pimoroni.com
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Load: dtoverlay=piglow
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/pifi-40-overlay.dts
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@@ -0,0 +1,50 @@
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+// Definitions for PiFi-40 Amp
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+/dts-v1/;
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+/plugin/;
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+#include <dt-bindings/gpio/gpio.h>
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+/ {
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+ compatible = "brcm,bcm2835";
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+
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+ fragment@0 {
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+ target = <&i2s>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&i2c1>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ tas5711l: audio-codec@1a {
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+ compatible = "ti,tas5711";
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+ reg = <0x1a>;
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+ #sound-dai-cells = <0>;
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+ sound-name-prefix = "Left";
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+ status = "okay";
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+ };
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+
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+ tas5711r: audio-codec@1b {
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+ compatible = "ti,tas5711";
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+ reg = <0x1b>;
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+ #sound-dai-cells = <0>;
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+ sound-name-prefix = "Right";
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+ status = "okay";
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+ };
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&sound>;
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+ pifi_40: __overlay__ {
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+ compatible = "pifi,pifi-40";
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+ audio-codec = <&tas5711l &tas5711r>;
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+ i2s-controller = <&i2s>;
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+ pdn-gpios = <&gpio 23 1>;
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+ status = "okay";
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+ };
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+ };
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+};
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