Sorry, s/codec/board/ in previous comment. So, I have looked to DSDT, what you basically need is to add a GPIO binding with correct name (hp-gpios, for example) and append GPIO ACPI mapping table as I pointed in example patch for byt-max98090.
Sorry, s/codec/board/ in previous comment.
So, I have looked to DSDT, what you basically need is to add a GPIO binding with correct name (hp-gpios, for example) and append GPIO ACPI mapping table as I pointed in example patch for byt-max98090.