From 34e0fc345ae728cd974d9ee09832abf62cf054c6 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Fri, 9 Jul 2021 14:08:12 +0200 Subject: [PATCH] arm64: tegra: Enable audio IOMMU support on Tegra194 Add iommus and interconnects properties to the sound device tree node on Tegra194. This ensures that the correct SID is used for translation of physical to I/O virtual addresses and that the path to system memory is properly described, which in turn can impact the range of memory that the device can address. Fixes: c7289b1c8a4e ("arm64: tegra: Enable SMMU support on Tegra194") Reviewed-by: Jon Hunter Signed-off-by: Thierry Reding --- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi index b7d532841390..0e6eeb1a1c1a 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi @@ -2469,6 +2469,11 @@ * for 8x and 11.025x sample rate streams. */ assigned-clock-rates = <258000000>; + + interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>, + <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>; + interconnect-names = "dma-mem", "write"; + iommus = <&smmu TEGRA194_SID_APE>; }; tcu: tcu { -- 2.11.0