Bridging hwmon and thermal

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Hi folks,

This system:
https://dflund.se/~triad/krad/dlink-dns-313/

Has:
- 1 GPIO fan using drivers/hwmon/gpio-fan.c
- 1 temperature sensor using drivers/hwmon/lm75.c

So it is the simplest form of chassis cooling.

Is it possible to use drivers/thermal to set up a policy
for controlling the HWMON fan directly by reading the
HWMON sensor input periodically?

If not: should it be? It seems natural to me.

I guess this stuff is normally "policy in userspace"
but we already have thermal policies in the kernel,
so...

Yours,
Linus Walleij
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