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-rw-r--r--target/linux/brcm2708/patches-4.14/950-0429-overlays-add-overrides-for-PoE-HAT-fan-control.patch50
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0429-overlays-add-overrides-for-PoE-HAT-fan-control.patch b/target/linux/brcm2708/patches-4.14/950-0429-overlays-add-overrides-for-PoE-HAT-fan-control.patch
new file mode 100644
index 0000000000..c0d93511f9
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0429-overlays-add-overrides-for-PoE-HAT-fan-control.patch
@@ -0,0 +1,50 @@
+From f7469d4973136acff2537c323a5377c217333bc8 Mon Sep 17 00:00:00 2001
+From: Serge Schneider <serge@raspberrypi.org>
+Date: Tue, 2 Oct 2018 17:13:48 +0100
+Subject: [PATCH 429/454] overlays: add overrides for PoE HAT fan control
+
+Signed-off-by: Serge Schneider <serge@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/README | 13 ++++++++++---
+ arch/arm/boot/dts/overlays/rpi-poe-overlay.dts | 10 ++++++++++
+ 2 files changed, 20 insertions(+), 3 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1596,9 +1596,16 @@ Params: touchscreen-size-x Touchscr
+
+
+ Name: rpi-poe
+-Info: Raspberry Pi POE HAT
+-Load: dtoverlay=rpi-poe
+-Params: <None>
++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)
++ poe_fan_temp0_hyst Temperature delta (in millicelcius) at which
++ the fan turns off (default 5000)
++ poe_fan_temp1 Temperature (in millicelcius) at which the fan
++ speeds up (default 55000)
++ poe_fan_temp1_hyst Temperature delta (in millicelcius) at which
++ the fan slows down (default 5000)
+
+
+ Name: rpi-proto
+--- a/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
++++ b/arch/arm/boot/dts/overlays/rpi-poe-overlay.dts
+@@ -50,4 +50,14 @@
+ };
+ };
+ };
++
++ fragment@2 {
++ target-path = "/__overrides__";
++ __overlay__ {
++ poe_fan_temp0 = <&trip0>,"temperature:0";
++ poe_fan_temp0_hyst = <&trip0>,"hysteresis:0";
++ poe_fan_temp1 = <&trip1>,"temperature:0";
++ poe_fan_temp1_hyst = <&trip1>,"hysteresis:0";
++ };
++ };
+ };