From 0038ca5d15fc3f703d78833f98c89da0f685b0ff Mon Sep 17 00:00:00 2001
From: Yi-Wei Wang <yiweiw@nvidia.com>
Date: Mon, 24 Jul 2023 18:44:55 +0800
Subject: [PATCH] [UPSTREAM v6.5]: arm64: tegra: Add Tegra234 thermal support

Add device tree node for the BPMP thermal node on Tegra234 and add
thermal zone definitions.

Cherry picked from commit 09d990782a243b97eb566717a2155a306a2f42af

Bug 3960800
Bug 4035713
Bug 4204722

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Yi-Wei Wang <yiweiw@nvidia.com>
Change-Id: Ifef49687ef550cbdcdf26a511a69b1e46502b376
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/2941394
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
---
 .../thermal/tegra234-bpmp-thermal.h           | 19 +++++++
 tegra234.dtsi                                 | 53 +++++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 include/kernel/dt-bindings/thermal/tegra234-bpmp-thermal.h

diff --git a/include/kernel/dt-bindings/thermal/tegra234-bpmp-thermal.h b/include/kernel/dt-bindings/thermal/tegra234-bpmp-thermal.h
new file mode 100644
index 0000000..9347879
--- /dev/null
+++ b/include/kernel/dt-bindings/thermal/tegra234-bpmp-thermal.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for binding nvidia,tegra234-bpmp-thermal.
+ */
+
+#ifndef _DT_BINDINGS_THERMAL_TEGRA234_BPMP_THERMAL_H
+#define _DT_BINDINGS_THERMAL_TEGRA234_BPMP_THERMAL_H
+
+#define TEGRA234_BPMP_THERMAL_ZONE_CPU		0
+#define TEGRA234_BPMP_THERMAL_ZONE_GPU		1
+#define TEGRA234_BPMP_THERMAL_ZONE_CV0		2
+#define TEGRA234_BPMP_THERMAL_ZONE_CV1		3
+#define TEGRA234_BPMP_THERMAL_ZONE_CV2		4
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC0		5
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC1		6
+#define TEGRA234_BPMP_THERMAL_ZONE_SOC2		7
+#define TEGRA234_BPMP_THERMAL_ZONE_TJ_MAX	8
+
+#endif
diff --git a/tegra234.dtsi b/tegra234.dtsi
index 480bae6..45fdf18 100644
--- a/tegra234.dtsi
+++ b/tegra234.dtsi
@@ -8,6 +8,7 @@
 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
 #include <dt-bindings/power/tegra234-powergate.h>
 #include <dt-bindings/reset/tegra234-reset.h>
+#include <dt-bindings/thermal/tegra234-bpmp-thermal.h>
 
 / {
 	compatible = "nvidia,tegra234";
@@ -2999,6 +3000,11 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 		};
+
+		bpmp_thermal: thermal {
+			compatible = "nvidia,tegra186-bpmp-thermal";
+			#thermal-sensor-cells = <1>;
+		};
 	};
 
 	cpus {
@@ -3435,6 +3441,53 @@
 					 <&bpmp TEGRA234_CLK_PLLA_OUT0>;
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CPU>;
+			status = "disabled";
+		};
+
+		gpu-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_GPU>;
+			status = "disabled";
+		};
+
+		cv0-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV0>;
+			status = "disabled";
+		};
+
+		cv1-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV1>;
+			status = "disabled";
+		};
+
+		cv2-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_CV2>;
+			status = "disabled";
+		};
+
+		soc0-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC0>;
+			status = "disabled";
+		};
+
+		soc1-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC1>;
+			status = "disabled";
+		};
+
+		soc2-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_SOC2>;
+			status = "disabled";
+		};
+
+		tj-thermal {
+			thermal-sensors = <&{/bpmp/thermal} TEGRA234_BPMP_THERMAL_ZONE_TJ_MAX>;
+			status = "disabled";
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,