Cirrus Logic Arizona class audio SoCs

These devices are audio SoCs with extensive digital capabilities and a range
of analogue I/O.

This document lists Extcon specific bindings, see the primary binding document:
  ../mfd/arizona.txt

Optional properties:

  - wlf,hpdet-channel : Headphone detection channel.
    ARIZONA_ACCDET_MODE_HPL or 1 - Headphone detect mode is set to HPDETL
    ARIZONA_ACCDET_MODE_HPR or 2 - Headphone detect mode is set to HPDETR
    If this node is not mentioned or if the value is unknown, then
    headphone detection mode is set to HPDETL.
