linux-kernel - [PATCH 1/4] arm64: dts: imx93: add thermal support

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Message-Id: <20230625105528.4057850-2-peng.fan@oss.nxp.com>
Date:   Sun, 25 Jun 2023 18:55:25 +0800
From:   "Peng Fan (OSS)" <peng.fan@....nxp.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: [PATCH 1/4] arm64: dts: imx93: add thermal support

From: Peng Fan <peng.fan@....com>

Add tmu node and thermal-zones

Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 53 ++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 8643612ace8c..9aad073b491e 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -8,6 +8,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/fsl,imx93-power.h>
+#include <dt-bindings/thermal/thermal.h>
 
 #include "imx93-pinfunc.h"
 
@@ -132,6 +133,38 @@ gic: interrupt-controller@...00000 {
 		interrupt-parent = <&gic>;
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <2000>;
+
+			thermal-sensors = <&tmu 0>;
+
+			trips {
+				cpu_alert: cpu-alert {
+					temperature = <80000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cpu_crit: cpu-crit {
+					temperature = <90000>;
+					hysteresis = <2000>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert>;
+					cooling-device =
+						<&A55_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+						<&A55_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+	};
+
 	soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -343,6 +376,26 @@ anatop: anatop@...80000 {
 				reg = <0x44480000 0x10000>;
 			};
 
+			tmu: tmu@...82000 {
+				compatible = "fsl,qoriq-tmu";
+				reg = <0x44482000 0x1000>;
+				clocks = <&clk IMX93_CLK_TMC_GATE>;
+				little-endian;
+				fsl,tmu-range = <0x800000da 0x800000e9
+						 0x80000102 0x8000012a
+						 0x80000166 0x800001a7
+						 0x800001b6>;
+				fsl,tmu-calibration = <0x00000000 0x0000000e
+						       0x00000001 0x00000029
+						       0x00000002 0x00000056
+						       0x00000003 0x000000a2
+						       0x00000004 0x00000116
+						       0x00000005 0x00000195
+						       0x00000006 0x000001b2>;
+				#thermal-sensor-cells = <1>;
+			};
+
+
 			adc1: adc@...30000 {
 				compatible = "nxp,imx93-adc";
 				reg = <0x44530000 0x10000>;
-- 
2.37.1