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-rw-r--r--target/linux/brcm2708/patches-4.4/0488-overlays-Add-audremap-overlay.patch56
1 files changed, 56 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0488-overlays-Add-audremap-overlay.patch b/target/linux/brcm2708/patches-4.4/0488-overlays-Add-audremap-overlay.patch
new file mode 100644
index 0000000000..de73d982b0
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0488-overlays-Add-audremap-overlay.patch
@@ -0,0 +1,56 @@
+From 7a2796d02bb044340fabbdc1c4a13c6f381155ac Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 19 Aug 2016 11:26:57 +0100
+Subject: [PATCH] overlays: Add audremap overlay
+
+The audremap overlay switches the PWM audio outputs to GPIO pins
+12 (L) and 13 (R).
+---
+ arch/arm/boot/dts/overlays/Makefile | 1 +
+ arch/arm/boot/dts/overlays/README | 6 ++++++
+ arch/arm/boot/dts/overlays/audremap-overlay.dts | 14 ++++++++++++++
+ 3 files changed, 21 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/audremap-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -18,6 +18,7 @@ dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += akkordion-iqdacplus.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += audioinjector-wm8731-audio.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += audremap.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += dionaudio-loco.dtbo
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -253,6 +253,12 @@ Load: dtoverlay=audioinjector-wm8731-a
+ Params: <None>
+
+
++Name: audremap
++Info: Switches PWM sound output to pins 12 & 13
++Load: dtoverlay=audremap
++Params: <None>
++
++
+ Name: bmp085_i2c-sensor
+ Info: Configures the BMP085/BMP180 digital barometric pressure and temperature
+ sensors from Bosch Sensortec
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/audremap-overlay.dts
+@@ -0,0 +1,14 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++ compatible = "brcm,bcm2708";
++
++ fragment@0 {
++ target = <&audio_pins>;
++ __overlay__ {
++ brcm,pins = < 12 13 >;
++ brcm,function = < 4 >; /* alt0 alt0 */
++ };
++ };
++};