From: Jernej Skrabec <jernej.skrabec@gmail.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen-Yu Tsai <wens@kernel.org>,
Samuel Holland <samuel@sholland.org>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
Jernej Skrabec <jernej.skrabec@gmail.com>
Subject: [PATCH] arm64: dts: allwinner: h616: Add CPU cooling map
Date: Wed, 4 Nov 2026 19:54:21 +0100 [thread overview]
Message-ID: <20261104185421.883883-1-jernej.skrabec@gmail.com> (raw)
The CPU thermal zone has passive trip points, but no cooling map, so
nothing throttles the CPUs and only the critical trip point ever acts,
by shutting the system down. Throttle the CPUs above the 70 C trip
point.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index c6b3a3f8359a..e4e0b999473e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -1105,6 +1105,16 @@ cpu_critical: cpu-trip-2 {
hysteresis = <0>;
};
};
+
+ cooling-maps {
+ map0 {
+ trip = <&cpu_target>;
+ 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 {
base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
--
2.43.0
reply other threads:[~2026-11-04 18:54 UTC|newest]
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