ARM: tegra: Mark Tegra30 display controller compatible with Tegra20

The display controller found on Tegra30 SoCs is backwards-compatible
with the one on Tegra20 SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 0022c127e1d956c42badc2970887fca3b9d7511b..d3d71ab7216a8755256c827994df134048dd94be 100644 (file)
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -141,7 +141,7 @@
                };
 
                dc@54200000 {
-                       compatible = "nvidia,tegra30-dc";
+                       compatible = "nvidia,tegra30-dc", "nvidia,tegra20-dc";
                        reg = <0x54200000 0x00040000>;
                        interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&tegra_car TEGRA30_CLK_DISP1>,