arm64: tegra: Add EL2 virtual timer interrupt for Tegra194

Commit d87773de9efe ("clocksource/drivers/arm_arch_timer: Default to EL2
virtual timer when running VHE") updated the ARM arch timer driver to
use the virtual timer by default if the CPU is running at EL2 with VHE
enabled. If the CPU is running at EL2 with VHE enabled but there is no
interrupt provided for the virtual timer, then the following warning is
displayed:

 arch_timer: [Firmware Bug]: VHE-capable CPU without EL2 virtual timer
  interrupt

This warning is observed on Tegra194 platforms. Tegra194 SoC includes
NVIDIA Carmel ARM v8.2 CPUs and support an EL2 virtual timer. Fix the
above warning by adding the PPI for the EL2 virtual timer interrupt for
Tegra194.

Fixes: 5425fb15d8ee ("arm64: tegra: Add Tegra194 chip device tree")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index eb7e3c666df629511e68113728c69b5bc71d2974..5e510f77b538671fbf879005fc33bfd79c1fa618 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -3176,6 +3176,8 @@
                             <GIC_PPI 11
                                (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
                             <GIC_PPI 10
+                               (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+                            <GIC_PPI 15
                                (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
                interrupt-parent = <&gic>;
                always-on;