[PATCH] arm64: tegra: Enable CPU sleep on Jetson Nano

[Thierry Reding <thierry.reding@xxxxxxxxx>]

From: Thierry Reding <treding@xxxxxxxxxx>

Jetson Nano implements CPU sleep via PSCI, much like any of the other
Tegra X1 platforms. Enable the sleep states to allow the CPU to go into
lower power states when idle.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
 arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
index b36e8758936b..3e471c736124 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p3450-0000.dts
@@ -582,6 +582,12 @@
 		cpu@3 {
 			enable-method = "psci";
 		};
+
+		idle-states {
+			cpu-sleep {
+				status = "okay";
+			};
+		};
 	};
 
 	gpio-keys {
-- 
2.21.0