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49 lines
1.7 KiB
Diff
49 lines
1.7 KiB
Diff
From 824d56e753a588fcfd650db1822e34a02a48bb77 Mon Sep 17 00:00:00 2001
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From: Bruno Umuarama <anonimou_eu@hotmail.com>
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Date: Thu, 13 Oct 2022 21:18:21 +0000
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Subject: [PATCH] mediatek: mt7623: fix thermal zone
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Raising the temperatures for passive and active trips. @VA1DER
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proposed at issue 9396 to remove passive trip. This commit relates to
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his suggestion.
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Without this patch. the CPU will be throttled all the way down to 98MHz
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if the temperature rises even a degree above the trip point, and it was
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further discovered that if the internal temperature of the device is
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above the first trip point temperature when it boots then it will start
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in a throttled state and even
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$ echo disabled > /sys/class/thermal/thermal_zone0/mode
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will have no effect.
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The patch increases the passive trip point and active cooling map. The
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throttling temperature will then be at 77°C and 82°C, which is still a
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low enough temperature for ARM devices to not be in the real danger
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zone, and gives some operational headroom.
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Signed-off-by: Bruno Umuarama <anonimou_eu@hotmail.com>
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---
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arch/arm/boot/dts/mediatek/mt7623.dtsi | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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--- a/arch/arm/boot/dts/mediatek/mt7623.dtsi
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+++ b/arch/arm/boot/dts/mediatek/mt7623.dtsi
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@@ -160,13 +160,13 @@
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trips {
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cpu_passive: cpu-passive {
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- temperature = <57000>;
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+ temperature = <77000>;
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hysteresis = <2000>;
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type = "passive";
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};
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cpu_active: cpu-active {
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- temperature = <67000>;
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+ temperature = <82000>;
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hysteresis = <2000>;
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type = "active";
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};
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