From 418ca5973ad807f9d7f99e68af2bd21c7e8baa4d Mon Sep 17 00:00:00 2001 From: Phil Elwell 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 --- 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"; }; };