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ARM: tegra: Enable IOMMU for display controllers on Tegra30 

Add iommus properties to the device tree nodes for the two display
controllers found on Tegra30. 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>
This commit is contained in:
Thierry Reding 2014-09-24 15:33:44 +02:00
parent b26ea06bab
commit 6d9adf6f00
1 changed files with 5 additions and 0 deletions
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5
arch/arm/boot/dts/tegra30.dtsi
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@ -1,5 +1,6 @@
#include <dt-bindings/clock/tegra30-car.h>
#include <dt-bindings/gpio/tegra-gpio.h>
#include <dt-bindings/memory/tegra30-mc.h>
#include <dt-bindings/pinctrl/pinctrl-tegra.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
@ -174,6 +175,8 @@ dc@54200000 {
resets = <&tegra_car 27>;
reset-names = "dc";
iommus = <&mc TEGRA_SWGROUP_DC>;
nvidia,head = <0>;
rgb {
@ -191,6 +194,8 @@ dc@54240000 {
resets = <&tegra_car 26>;
reset-names = "dc";
iommus = <&mc TEGRA_SWGROUP_DCB>;
nvidia,head = <1>;
rgb {