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-rw-r--r--target/linux/brcm2708/patches-4.4/0381-BCM270X_DT-Fix-rpi-dac-overlay.patch34
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0381-BCM270X_DT-Fix-rpi-dac-overlay.patch b/target/linux/brcm2708/patches-4.4/0381-BCM270X_DT-Fix-rpi-dac-overlay.patch
new file mode 100644
index 0000000000..142ef1427c
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0381-BCM270X_DT-Fix-rpi-dac-overlay.patch
@@ -0,0 +1,34 @@
+From 89f988c93882e1ac4ad7864ee9469aa02550090c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 3 Jun 2016 21:56:40 +0100
+Subject: [PATCH] BCM270X_DT: Fix rpi-dac overlay
+
+The rpi-dac overlay is almost identical to the hifiberry-dac overlay -
+the codec used is different but it also doesn't sit on the I2C bus. As
+a result, when the overlays were modified for dynamic loading and it
+was discovered that the hifiberry-dac overlay didn't work any more, the
+the rpi-dac overlay was also broken.
+
+The failure was caused by the fact that outside a bus, device names are
+constructed from the concatenation of the path elements leading to it,
+so moving the codec instantiation inside /soc caused the device name
+to get a "soc" added, breaking ALSA's naming.
+
+See: http://forum.kodi.tv/showthread.php?tid=269814&pid=2349776#pid2349776
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/rpi-dac-overlay.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rpi-dac-overlay.dts
+@@ -13,7 +13,7 @@
+ };
+
+ fragment@1 {
+- target = <&soc>;
++ target-path = "/";
+ __overlay__ {
+ pcm1794a-codec {
+ #sound-dai-cells = <0>;