From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>,
Jon Hunter <jonathanh@nvidia.com>,
Sameer Pujar <spujar@nvidia.com>,
linux-tegra@vger.kernel.org, alsa-devel@alsa-project.org,
devicetree@vger.kernel.org
Subject: [PATCH v2 2/2] arm64: tegra: Enable audio IOMMU support on Tegra194
Date: Thu, 8 Jul 2021 12:34:32 +0200 [thread overview]
Message-ID: <20210708103432.1690385-3-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210708103432.1690385-1-thierry.reding@gmail.com>
From: Thierry Reding <treding@nvidia.com>
Add iommus and interconnects properties to the ADMAIF 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.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index b7d532841390..07e61f084123 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -200,6 +200,10 @@ tegra_admaif: admaif@290f000 {
"rx19", "tx19",
"rx20", "tx20";
status = "disabled";
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_APEDMAR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_APEDMAW &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu TEGRA194_SID_APE>;
};
tegra_i2s1: i2s@2901000 {
--
2.32.0
next prev parent reply other threads:[~2021-07-08 10:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-08 10:34 [PATCH v2 0/2] arm64: tegra: Enable audio IOMMU support on Tegra194 Thierry Reding
2021-07-08 10:34 ` [PATCH v2 1/2] ASoC: tegra: Use ADMAIF component for DMA allocations Thierry Reding
2021-07-08 10:34 ` Thierry Reding [this message]
2021-07-12 10:45 ` (subset) [PATCH v2 0/2] arm64: tegra: Enable audio IOMMU support on Tegra194 Mark Brown
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