linux-kernel - [PATCH v6 4/7] arm64: dts: meson: g12: Add minimal thermal zone

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Message-Id: <20190927184352.28759-5-glaroque@baylibre.com>
Date:   Fri, 27 Sep 2019 20:43:49 +0200
From:   Guillaume La Roque <glaroque@...libre.com>
To:     amit.kucheria@...aro.org, 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 v6 4/7] arm64: dts: meson: g12: 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)

Acked-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Tested-by: Christian Hewitt <christianshewitt@...il.com>
Tested-by: Kevin Hilman <khilman@...libre.com>
Signed-off-by: Guillaume La Roque <glaroque@...libre.com>
---
 .../boot/dts/amlogic/meson-g12-common.dtsi    | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 0660d9ef6a86..f98171949fcb 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -12,6 +12,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
 #include <dt-bindings/reset/amlogic,meson-g12a-reset.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -94,6 +95,50 @@
 		#size-cells = <2>;
 		ranges;
 
+		thermal-zones {
+			cpu_thermal: cpu-thermal {
+				polling-delay = <1000>;
+				polling-delay-passive = <100>;
+				thermal-sensors = <&cpu_temp>;
+
+				trips {
+					cpu_passive: cpu-passive {
+						temperature = <85000>; /* millicelsius */
+						hysteresis = <2000>; /* millicelsius */
+						type = "passive";
+					};
+
+					cpu_hot: cpu-hot {
+						temperature = <95000>; /* millicelsius */
+						hysteresis = <2000>; /* millicelsius */
+						type = "hot";
+					};
+
+				};
+			};
+
+			ddr_thermal: ddr-thermal {
+				polling-delay = <1000>;
+				polling-delay-passive = <100>;
+				thermal-sensors = <&ddr_temp>;
+
+				trips {
+					ddr_passive: ddr-passive {
+						temperature = <85000>; /* millicelsius */
+						hysteresis = <2000>; /* millicelsius */
+						type = "passive";
+					};
+				};
+
+				cooling-maps {
+					map {
+						trip = <&ddr_passive>;
+						cooling-device = <&mali THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+					};
+				};
+			};
+		};
+
 		ethmac: ethernet@...f0000 {
 			compatible = "amlogic,meson-axg-dwmac",
 				     "snps,dwmac-3.70a",
@@ -2412,6 +2457,7 @@
 			assigned-clock-rates = <0>, /* Do Nothing */
 					       <800000000>,
 					       <0>; /* Do Nothing */
+			#cooling-cells = <2>;
 		};
 	};
 
-- 
2.17.1