linux-kernel - [PATCH v4 5/6] arm64: dts: amlogic: odroid-n2: add minimal thermal zone

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Message-Id: <20190821222421.30242-6-glaroque@baylibre.com>
Date:   Thu, 22 Aug 2019 00:24:20 +0200
From:   Guillaume La Roque <glaroque@...libre.com>
To:     rui.zhang@...el.com, edubezval@...il.com, daniel.lezcano@...aro.org
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org
Subject: [PATCH v4 5/6] arm64: dts: amlogic: odroid-n2: add minimal thermal zone

Add minimal thermal zone for two temperature sensor
One is located close to the DDR and the other one is
located close to the PLLs (between the CPU and GPU)

Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 .../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 76 +++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
index 777bfb938854..8d7c73bad4aa 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dts
@@ -10,6 +10,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/meson-g12a-gpio.h>
 #include <dt-bindings/sound/meson-g12a-tohdmitx.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	compatible = "hardkernel,odroid-n2", "amlogic,g12b";
@@ -20,6 +21,71 @@
 		ethernet0 = &ethmac;
 	};
 
+	thermal-zones {
+		cpu-thermal {
+			polling-delay = <1000>;
+			polling-delay-passive = <100>;
+			thermal-sensors = <&cpu_temp>;
+
+			trips {
+				cpu_hot: cpu-hot {
+					temperature = <85000>; /* millicelsius */
+					hysteresis = <2000>; /* millicelsius */
+					type = "hot";
+				};
+
+				cpu_critical: cpu-critical {
+					temperature = <110000>; /* millicelsius */
+					hysteresis = <2000>; /* millicelsius */
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_hot>;
+					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu100 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu101 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu102 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu103 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+
+				map1 {
+					trip = <&cpu_critical>;
+					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu100 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu101 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu102 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu103 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+
+		ddr-thermal {
+			polling-delay = <1000>;
+			polling-delay-passive = <100>;
+			thermal-sensors = <&ddr_temp>;
+
+			trips {
+				ddr_critical: ddr-critical {
+					temperature = <110000>; /* millicelsius */
+					hysteresis = <2000>; /* millicelsius */
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				map {
+					trip = <&ddr_critical>;
+					cooling-device = <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+	};
+
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
@@ -289,6 +355,7 @@
 	operating-points-v2 = <&cpu_opp_table_0>;
 	clocks = <&clkc CLKID_CPU_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &cpu1 {
@@ -296,6 +363,7 @@
 	operating-points-v2 = <&cpu_opp_table_0>;
 	clocks = <&clkc CLKID_CPU_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &cpu100 {
@@ -303,6 +371,7 @@
 	operating-points-v2 = <&cpub_opp_table_1>;
 	clocks = <&clkc CLKID_CPUB_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &cpu101 {
@@ -310,6 +379,7 @@
 	operating-points-v2 = <&cpub_opp_table_1>;
 	clocks = <&clkc CLKID_CPUB_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &cpu102 {
@@ -317,6 +387,7 @@
 	operating-points-v2 = <&cpub_opp_table_1>;
 	clocks = <&clkc CLKID_CPUB_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &cpu103 {
@@ -324,6 +395,7 @@
 	operating-points-v2 = <&cpub_opp_table_1>;
 	clocks = <&clkc CLKID_CPUB_CLK>;
 	clock-latency = <50000>;
+	#cooling-cells = <2>;
 };
 
 &ext_mdio {
@@ -378,6 +450,10 @@
 	};
 };
 
+&mali {
+	#cooling-cells = <2>;
+};
+
 &hdmi_tx {
 	status = "okay";
 	pinctrl-0 = <&hdmitx_hpd_pins>, <&hdmitx_ddc_pins>;
-- 
2.17.1