Westerberg, Mika wrote:
Typically this is done by the boot firmware (BIOS in this case). So the OS
doesn't need to deal with that.

AFAICT ACPI doesn't know anything about pin muxing.

In that case, would it be correct to say that a Linux pinctrl driver for an ACPI-only platform should not define pinmux function groups, because they'll never be used?

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