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extcon: arizona: Update DT binding documentation for mic detection

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Add additional bindings to allow configuration of the system specific
microphone detection settings.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Charles Keepax 2015-11-19 15:45:39 +00:00 committed by Chanwoo Choi
parent 35247c136a
commit afe330098d
1 changed files with 20 additions and 0 deletions
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20
Documentation/devicetree/bindings/extcon/extcon-arizona.txt
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@ -13,3 +13,23 @@ Optional properties:
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.
- wlf,micd-software-compare : Use a software comparison to determine mic
presence
- wlf,micd-detect-debounce : Additional software microphone detection
debounce specified in milliseconds.
- wlf,micd-pol-gpio : GPIO specifier for the GPIO controlling the headset
polarity if one exists.
- wlf,micd-bias-start-time : Time allowed for MICBIAS to startup prior to
performing microphone detection, specified as per the ARIZONA_MICD_TIME_XXX
defines.
- wlf,micd-rate : Delay between successive microphone detection measurements,
specified as per the ARIZONA_MICD_TIME_XXX defines.
- wlf,micd-dbtime : Microphone detection hardware debounces specified as the
number of measurements to take, valid values being 2 and 4.
- wlf,micd-timeout : Timeout for microphone detection, specified in
milliseconds.
- wlf,micd-force-micbias : Force MICBIAS continuously on during microphone
detection.
- wlf,gpsw : Settings for the general purpose switch