bigtreetech / bigtreetech/CB1

Request to add devicetree overlay for Manta M4P's SoC fan

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#61 2 comments 0 reactions 0 assignees View on GitHub
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Description

Hi,

I plugged in a 24v fan on the SoC fan socket (internal pin PC15) of the Manta M4P. The fan is not working because apparently an overlay is needed that makes the H616 SoC communicate with the fan's GPIO to turn it on/off depending on the SoC's temperature.
An example of this kind of overlay for Raspberry Pi can be found here: https://raw.githubusercontent.com/raspberrypi/linux/rpi-4.19.y/arch/arm/boot/dts/overlays/gpio-fan-overlay.dts .
It would be nice to have something like this adjusted for CB1.

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Research direction

Start with the Raspberry Pi gpio-fan-overlay.dts example linked in the issue and inspect the CB1 H616 device-tree sources for the Manta M4P and GPIO PC15. Confirm the expected temperature-controlled fan behavior and existing overlay conventions; done means the SoC fan can be switched on and off according to temperature on CB1.

Written by the indexing model from the issue text.

Assessment

Tech stack
linux
Domain
embedded-iot, operating-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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