From 1ec74533840650b914ccdf9f62a298ecb29994ab Mon Sep 17 00:00:00 2001
From: Jon Hunter <jonathanh@nvidia.com>
Date: Thu, 18 Jun 2020 12:54:39 +0100
Subject: [PATCH] ARM: tegra: Enable PSCI support for Tegra210 and Tegra186

The PSCI nodes are currently not populated for the Tegra210 and Tegra186
devices. This prevents the PSCI driver from being able to identify the
PSCI method used by these devices and causes the probe of the PSCI
driver to fail.

Since commit 81ea00838c68 ("efi_loader: PSCI reset and shutdown") was
added, which moves the PSCI EFI system reset handler into the PSCI
driver, this has prevented the EFI system reset from working for
Tegra210 and Tegra186. Therefore, populating these nodes is necessary
to fix the EFI system reset for Tegra210 and Tegra186.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
---
 arch/arm/dts/tegra186.dtsi | 5 +++++
 arch/arm/dts/tegra210.dtsi | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm/dts/tegra186.dtsi b/arch/arm/dts/tegra186.dtsi
index 0a9db9825b..edcb7aacb8 100644
--- a/arch/arm/dts/tegra186.dtsi
+++ b/arch/arm/dts/tegra186.dtsi
@@ -335,4 +335,9 @@
 			status = "disabled";
 		};
 	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
 };
diff --git a/arch/arm/dts/tegra210.dtsi b/arch/arm/dts/tegra210.dtsi
index 3ec54b11c4..a521a43d6c 100644
--- a/arch/arm/dts/tegra210.dtsi
+++ b/arch/arm/dts/tegra210.dtsi
@@ -867,6 +867,11 @@
 		};
 	};
 
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13
-- 
2.39.5