X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0631-overlays-Add-audio-parameter-to-vc4-kms-v3d.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0631-overlays-Add-audio-parameter-to-vc4-kms-v3d.patch;h=a70d50eecd78f678663b6134e1c3a80c150465c5;hb=84d555aa74434392b682fd9eb0fa701c89a046d6;hp=0000000000000000000000000000000000000000;hpb=953973c2991e8640549a55df7a0574a1abac8644;p=openwrt%2Fstaging%2Fwigyori.git

diff --git a/target/linux/brcm2708/patches-4.19/950-0631-overlays-Add-audio-parameter-to-vc4-kms-v3d.patch b/target/linux/brcm2708/patches-4.19/950-0631-overlays-Add-audio-parameter-to-vc4-kms-v3d.patch
new file mode 100644
index 0000000000..a70d50eecd
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0631-overlays-Add-audio-parameter-to-vc4-kms-v3d.patch
@@ -0,0 +1,49 @@
+From 418ca5973ad807f9d7f99e68af2bd21c7e8baa4d Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 31 Jul 2019 17:39:37 +0100
+Subject: [PATCH] overlays: Add audio parameter to vc4-kms-v3d
+
+The audio parameter to the vc4-kms-v3d overlay allows audio support
+to be disabled (it defaults to on) by adding "audio=off" to the
+dtoverlay parameters.
+
+See: https://github.com/raspberrypi/linux/issues/2489
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/README                  | 1 +
+ arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 8 ++++++++
+ 2 files changed, 9 insertions(+)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -2480,6 +2480,7 @@ Params: cma-256                 CMA is 2
+         cma-128                 CMA is 128MB
+         cma-96                  CMA is 96MB
+         cma-64                  CMA is 64MB
++        audio                   Enable or disable audio over HDMI (default "on")
+ 
+ 
+ Name:   vga666
+--- a/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
++++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
+@@ -134,11 +134,19 @@
+ 		};
+ 	};
+ 
++	fragment@17 {
++		target = <&hdmi>;
++		__dormant__  {
++			dmas;
++		};
++	};
++
+ 	__overrides__ {
+ 		cma-256 = <0>,"+0-1-2-3-4";
+ 		cma-192 = <0>,"-0+1-2-3-4";
+ 		cma-128 = <0>,"-0-1+2-3-4";
+ 		cma-96  = <0>,"-0-1-2+3-4";
+ 		cma-64  = <0>,"-0-1-2-3+4";
++		audio   = <0>,"!17";
+ 	};
+ };