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extcon: arizona: Update device tree binding for mic detect configurations 

Update the device tree binding documentation to include documentation for
the wlf,micd-configs property that is used to specify the configurations
for headset polarity detection (CTIA / OTMP).

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Charles Keepax 2015-12-14 10:37:12 +00:00 committed by Chanwoo Choi
parent bb6da5d954
commit cb0eac8fd1
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/extcon/extcon-arizona.txt
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@ -37,5 +37,13 @@ Optional properties:
milliseconds.
- wlf,micd-force-micbias : Force MICBIAS continuously on during microphone
detection.
- wlf,micd-configs : Headset polarity configurations (generally used for
detection of CTIA / OMTP headsets), the field can be of variable length
but should always be a multiple of 3 cells long, each three cell group
represents one polarity configuration.
The first cell defines the accessory detection pin, zero will use MICDET1
and all other values will use MICDET2.
The second cell represents the MICBIAS to be used.
The third cell represents the value of the micd-pol-gpio pin.
- wlf,gpsw : Settings for the general purpose switch