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8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
25 lines
1015 B
Diff
25 lines
1015 B
Diff
From 6e4cd276213a20bc55146588b0ec2fc6b622a9d7 Mon Sep 17 00:00:00 2001
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From: ProBackup-nl <515451+ProBackup-nl@users.noreply.github.com>
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Date: Thu, 18 Mar 2021 18:21:43 +0100
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Subject: [PATCH] Make rpi poe fan less noisy in cool environments
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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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Run the PoE hat fan with reduced noise when possible. The PoE hat fan will spin even at PWM=1 and spins almost silent. Tested at 17ºC, the fan PWM alternates between 1 and 10, which is a lot less noisy then alternating between PWM levels 0 and 31.
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---
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arch/arm/boot/dts/overlays/rpi-poe-overlay.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
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@@ -16,7 +16,7 @@
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cooling-min-state = <0>;
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cooling-max-state = <4>;
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#cooling-cells = <2>;
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- cooling-levels = <0 31 63 150 255>;
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+ cooling-levels = <0 1 10 100 255>;
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status = "okay";
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};
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};
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