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From bb766b0401a49f4a824dd116b9befe8542fe3cd6 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Fri, 27 Mar 2020 13:49:25 +0000
Subject: [PATCH] overlays: Add missing rpi-poe parameters
The rpi-poe fan overlay has gained two more fan speeds and adjusted
the thresholds and hystereses.
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
arch/arm/boot/dts/overlays/README | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -2037,12 +2037,20 @@ Name: rpi-poe
Info: Raspberry Pi PoE HAT fan
Load: dtoverlay=rpi-poe,<param>[=<val>]
Params: poe_fan_temp0 Temperature (in millicelcius) at which the fan
- turns on (default 50000)
+ turns on (default 40000)
poe_fan_temp0_hyst Temperature delta (in millicelcius) at which
- the fan turns off (default 5000)
+ the fan turns off (default 2000)
poe_fan_temp1 Temperature (in millicelcius) at which the fan
- speeds up (default 55000)
+ speeds up (default 45000)
poe_fan_temp1_hyst Temperature delta (in millicelcius) at which
+ the fan slows down (default 2000)
+ poe_fan_temp2 Temperature (in millicelcius) at which the fan
+ speeds up (default 50000)
+ poe_fan_temp2_hyst Temperature delta (in millicelcius) at which
+ the fan slows down (default 2000)
+ poe_fan_temp3 Temperature (in millicelcius) at which the fan
+ speeds up (default 55000)
+ poe_fan_temp3_hyst Temperature delta (in millicelcius) at which
the fan slows down (default 5000)
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