From b068faea741ef33c1d80147f3a93eb08cda13f7f Mon Sep 17 00:00:00 2001
From: Sanjay Chandrashekara <sanjayc@nvidia.com>
Date: Fri, 28 Oct 2022 19:59:42 +0000
Subject: [PATCH] t23x: concord: dts: enable cpu core power gating

This patch enables cpu core power gating through cpuidle.

Bug 3583597

Change-Id: I93bff177a003a825b0297105e4c862f5b0d4c42f
Signed-off-by: Sanjay Chandrashekara <sanjayc@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2799745
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
---
 ...tegra234-p3737-0000+p3701-0000-overlay.dts | 108 ++++++++++++++++++
 1 file changed, 108 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000-overlay.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000-overlay.dts
index fe0bf872..ecaee7ad 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000-overlay.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000-overlay.dts
@@ -164,4 +164,112 @@
 			};
 		};
 	};
+
+	fragment-t234-p3737-p3701@10 {
+		target-path = "/cpus";
+		__overlay__ {
+			cpu_core_power_states {
+				C1: c1 {
+					compatible = "arm,idle-state";
+					state-name = "Clock gated";
+					wakeup-latency-us = <1>;
+					min-residency-us = <1>;
+					status = "okay";
+				};
+
+				C7: c7 {
+					compatible = "arm,idle-state";
+					state-name = "Core powergate";
+					wakeup-latency-us = <5000>;
+					arm,psci-suspend-param= <0x40000007>;
+					min-residency-us = <30000>;
+					status = "okay";
+				};
+			};
+		};
+	};
+
+	fragment-t234-p3737-p3701@11 {
+		target-path = "/cpus/cpu@0";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@12 {
+		target-path = "/cpus/cpu@100";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@13 {
+		target-path = "/cpus/cpu@200";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@14 {
+		target-path = "/cpus/cpu@300";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@15 {
+		target-path = "/cpus/cpu@10000";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@16 {
+		target-path = "/cpus/cpu@10100";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@17 {
+		target-path = "/cpus/cpu@10200";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@18 {
+		target-path = "/cpus/cpu@10300";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@19 {
+		target-path = "/cpus/cpu@20000";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@20 {
+		target-path = "/cpus/cpu@20100";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@21 {
+		target-path = "/cpus/cpu@20200";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
+
+	fragment-t234-p3737-p3701@22 {
+		target-path = "/cpus/cpu@20300";
+		__overlay__ {
+			cpu-idle-states = <&C7>;
+		};
+	};
 };