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From: "Clément Péron" <peron.clem@gmail.com>
To: Maxime Ripard <mripard@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Rob Herring <robh+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-sunxi <linux-sunxi@googlegroups.com>,
	"Ondrej Jirman" <megous@megous.com>,
	"Clément Péron" <peron.clem@gmail.com>
Subject: [PATCH v2 2/7] arm64: dts: allwinner: h6: Add thermal trip points/cooling map
Date: Sun,  5 Apr 2020 19:35:56 +0200	[thread overview]
Message-ID: <20200405173601.24331-3-peron.clem@gmail.com> (raw)
In-Reply-To: <20200405173601.24331-1-peron.clem@gmail.com>

From: Ondrej Jirman <megous@megous.com>

This enables passive cooling by down-regulating CPU voltage
and frequency.

Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 24 ++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index aef4ae760d5e..e0dd0757be0b 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -908,6 +908,30 @@
 			polling-delay-passive = <0>;
 			polling-delay = <0>;
 			thermal-sensors = <&ths 0>;
+
+			trips {
+				cpu_hot_trip: cpu-hot {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cpu_very_hot_trip: cpu-very-hot {
+					temperature = <100000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+
+			cooling-maps {
+				cpu-hot-limit {
+					trip = <&cpu_hot_trip>;
+					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		gpu-thermal {
-- 
2.20.1


  parent reply	other threads:[~2020-04-05 17:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-05 17:35 [PATCH v2 0/7] Add support for Allwinner H6 DVFS Clément Péron
2020-04-05 17:35 ` [PATCH v2 1/7] arm64: dts: allwinner: h6: Add clock to CPU cores Clément Péron
2020-04-05 17:35 ` Clément Péron [this message]
2020-04-05 17:35 ` [PATCH v2 3/7] arm64: dts: allwinner: h6: Add CPU Operating Performance Points table Clément Péron
2020-04-06  8:14   ` Maxime Ripard
2020-04-06 18:03     ` Clément Péron
2020-04-07  8:47       ` Maxime Ripard
2020-04-05 17:35 ` [PATCH v2 4/7] arm64: dts: allwinner: h6: Add GPU " Clément Péron
2020-04-06  8:16   ` Maxime Ripard
2020-04-06  8:58     ` Clément Péron
2020-04-05 17:35 ` [PATCH v2 5/7] arm64: configs: Enable sun50i cpufreq nvmem Clément Péron
2020-04-06  8:16   ` Maxime Ripard
2020-04-05 17:36 ` [PATCH v2 6/7] arm64: dts: allwinner: h6: Enable CPU and GPU opp tables for Beelink GS1 Clément Péron
2020-04-05 17:36 ` [PATCH v2 7/7] arm64: dts: allwinner: h6: Enable CPU and GPU opp tables for Orange Pi boards Clément Péron
2020-04-06  9:10   ` Clément Péron
2020-04-06  8:10 ` [PATCH v2 0/7] Add support for Allwinner H6 DVFS Maxime Ripard
2020-04-06  9:07   ` Clément Péron
2020-04-13 13:37     ` Clément Péron
2020-04-15 10:28       ` Maxime Ripard

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