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57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
From 612d9be3d6aa73b018005a182bd55a551abfc271 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Fri, 19 Aug 2016 11:26:57 +0100
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Subject: [PATCH] overlays: Add audremap overlay
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The audremap overlay switches the PWM audio outputs to GPIO pins
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12 (L) and 13 (R).
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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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arch/arm/boot/dts/overlays/audremap-overlay.dts | 14 ++++++++++++++
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3 files changed, 21 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/audremap-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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@@ -18,6 +18,7 @@ dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += akkordion-iqdacplus.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += audioinjector-wm8731-audio.dtbo
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+dtbo-$(RPI_DT_OVERLAYS) += audremap.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo
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dtbo-$(RPI_DT_OVERLAYS) += dionaudio-loco.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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@@ -253,6 +253,12 @@ Load: dtoverlay=audioinjector-wm8731-a
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Params: <None>
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+Name: audremap
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+Info: Switches PWM sound output to pins 12 & 13
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+Load: dtoverlay=audremap
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+Params: <None>
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+
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+
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Name: bmp085_i2c-sensor
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Info: Configures the BMP085/BMP180 digital barometric pressure and temperature
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sensors from Bosch Sensortec
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
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@@ -0,0 +1,14 @@
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2708";
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+
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+ fragment@0 {
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+ target = <&audio_pins>;
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+ __overlay__ {
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+ brcm,pins = < 12 13 >;
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+ brcm,function = < 4 >; /* alt0 alt0 */
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+ };
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+ };
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+};
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