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ARM: tegra: Enable IOMMU for display controllers on Tegra124
Add iommus properties to the device tree nodes for the two display controllers found on Tegra124. This will allow the display controllers to map physically non-contiguous buffers to I/O virtual contiguous address spaces so that they can be used for scan-out. Signed-off-by: Thierry Reding <treding@nvidia.com>
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1 changed files with 5 additions and 0 deletions
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@ -1,5 +1,6 @@
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#include <dt-bindings/clock/tegra124-car.h>
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#include <dt-bindings/gpio/tegra-gpio.h>
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#include <dt-bindings/memory/tegra124-mc.h>
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#include <dt-bindings/pinctrl/pinctrl-tegra.h>
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#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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@ -102,6 +103,8 @@ dc@0,54200000 {
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resets = <&tegra_car 27>;
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reset-names = "dc";
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iommus = <&mc TEGRA_SWGROUP_DC>;
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nvidia,head = <0>;
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};
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@ -115,6 +118,8 @@ dc@0,54240000 {
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resets = <&tegra_car 26>;
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reset-names = "dc";
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iommus = <&mc TEGRA_SWGROUP_DCB>;
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nvidia,head = <1>;
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};
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