Commit 94a06fb8 authored by Serge Schneider's avatar Serge Schneider Committed by Phil Elwell
Browse files

overlays: add overrides for PoE HAT fan control 



Signed-off-by: default avatarSerge Schneider <serge@raspberrypi.org>
parent 5c3f0d5f

arch/arm/boot/dts/overlays/README

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@@ -1596,9 +1596,16 @@ Params: touchscreen-size-x Touchscreen X resolution (default 800) 




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

arch/arm/boot/dts/overlays/rpi-poe-overlay.dts

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@@ -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";

		};

	};

};