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[v3] media: dt: bindings: tegra-vde: Document new optional IOMMU property

Message ID 20190623170730.5095-4-digetx@gmail.com
State Accepted
Headers show
Series [v3] media: dt: bindings: tegra-vde: Document new optional IOMMU property | expand

Commit Message

Dmitry Osipenko June 23, 2019, 5:07 p.m. UTC
All NVIDIA Tegra SoC generations provide IOMMU support for the video
decoder engine. Document new optional device-tree property that connects
VDE with the IOMMU provider.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---

No changes since v1.

 Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt | 2 ++
 1 file changed, 2 insertions(+)

Comments

Rob Herring (Arm) July 9, 2019, 11:02 p.m. UTC | #1
On Sun, 23 Jun 2019 20:07:26 +0300, Dmitry Osipenko wrote:
> All NVIDIA Tegra SoC generations provide IOMMU support for the video
> decoder engine. Document new optional device-tree property that connects
> VDE with the IOMMU provider.
> 
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> 
> No changes since v1.
> 
>  Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
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Patch

diff --git a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
index 7302e949e662..602169b8aa19 100644
--- a/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
+++ b/Documentation/devicetree/bindings/media/nvidia,tegra-vde.txt
@@ -35,6 +35,7 @@  Optional properties:
 - resets : Must contain an entry for each entry in reset-names.
 - reset-names : Must include the following entries:
   - mc
+- iommus: Must contain phandle to the IOMMU device node.
 
 Example:
 
@@ -59,4 +60,5 @@  video-codec@6001a000 {
 	clocks = <&tegra_car TEGRA20_CLK_VDE>;
 	reset-names = "vde", "mc";
 	resets = <&tegra_car 61>, <&mc TEGRA20_MC_RESET_VDE>;
+	iommus = <&mc TEGRA_SWGROUP_VDE>;
 };