From fbd8d5832eb97b879bdcacdfdd5d891497f2a372 Mon Sep 17 00:00:00 2001
From: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Date: Mon, 4 Sep 2017 15:58:36 +0900
Subject: [PATCH] ARM: dts: uniphier: add nodes of thermal monitor and thermal
 zone for PXs2

Add nodes of thermal monitor and thermal zone for UniPhier PXs2 SoC.
The thermal monitor node is included in sysctrl. Since the efuse might not
have a calibrated value of thermal monitor, this patch gives the default
value for PXs2.

Furthermore, add cpuN labels for reference in cooling-device property.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 arch/arm/boot/dts/uniphier-pxs2.dtsi | 47 +++++++++++++++++++++++++++++++++---
 1 file changed, 43 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/uniphier-pxs2.dtsi b/arch/arm/boot/dts/uniphier-pxs2.dtsi
index 90b020c..995d275 100644
--- a/arch/arm/boot/dts/uniphier-pxs2.dtsi
+++ b/arch/arm/boot/dts/uniphier-pxs2.dtsi
@@ -7,6 +7,8 @@
  * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
  */
 
+#include <dt-bindings/thermal/thermal.h>
+
 / {
 	compatible = "socionext,uniphier-pxs2";
 	#address-cells = <1>;
@@ -16,7 +18,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0>;
@@ -24,9 +26,10 @@
 			enable-method = "psci";
 			next-level-cache = <&l2>;
 			operating-points-v2 = <&cpu_opp>;
+			#cooling-cells = <2>;
 		};
 
-		cpu@1 {
+		cpu1: cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <1>;
@@ -36,7 +39,7 @@
 			operating-points-v2 = <&cpu_opp>;
 		};
 
-		cpu@2 {
+		cpu2: cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <2>;
@@ -46,7 +49,7 @@
 			operating-points-v2 = <&cpu_opp>;
 		};
 
-		cpu@3 {
+		cpu3: cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <3>;
@@ -114,6 +117,35 @@
 		};
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <250>;	/* 250ms */
+			polling-delay = <1000>;		/* 1000ms */
+			thermal-sensors = <&pvtctl>;
+
+			trips {
+				cpu_crit: cpu-crit {
+					temperature = <95000>;	/* 95C */
+					hysteresis = <2000>;
+					type = "critical";
+				};
+				cpu_alert: cpu-alert {
+					temperature = <85000>;	/* 85C */
+					hysteresis = <2000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map {
+					trip = <&cpu_alert>;
+					cooling-device = <&cpu0
+					    THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -358,6 +390,13 @@
 				compatible = "socionext,uniphier-pxs2-reset";
 				#reset-cells = <1>;
 			};
+
+			pvtctl: pvtctl {
+				compatible = "socionext,uniphier-pxs2-thermal";
+				interrupts = <0 3 4>;
+				#thermal-sensor-cells = <0>;
+				socionext,tmod-calibration = <0x0f86 0x6844>;
+			};
 		};
 
 		nand: nand@68000000 {
-- 
2.7.4