target/linux/bcm27xx/patches-5.10/950-0737-overlays-rpi-poe-plus-Improve-the-cooling-levels.patch

   1 From 2a30b8254d34a2656d798931f46af157afd152c0 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 18 Aug 2021 17:26:49 +0100
   4 Subject: [PATCH] overlays: rpi-poe-plus: Improve the cooling levels
   5
   6 The PoE HAT cooling levels are not well suited for the PoE+ HAT - the
   7 fan fails to come on until the temperature reaches the third trip point
   8 (50C).
   9
  10 Give the rpi-poe-plus overlay a different set of cooling levels -
  11 0 32 64 128 255, as suggested by @chris-kai-in.
  12
  13 See: https://github.com/raspberrypi/firmware/issues/1607
  14
  15 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  16 ---
  17  arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts | 4 ++++
  18  1 file changed, 4 insertions(+)
  19
  20 --- a/arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
  21 +++ b/arch/arm/boot/dts/overlays/rpi-poe-plus-overlay.dts
  22 @@ -17,3 +17,7 @@
  23                 };
  24         };
  25  };
  26 +
  27 +&fan0 {
  28 +       cooling-levels = <0 32 64 128 255>;
  29 +};