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    Subject[PATCH 5/6] mfd: arizona: Update DT binding documentation for mic detection
    Date
    Add additional bindings to allow configuration of the system specific
    microphone detection settings.

    Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
    ---
    Documentation/devicetree/bindings/mfd/arizona.txt | 21 +++++++++++++++++++++
    include/dt-bindings/mfd/arizona.h | 5 +++++
    2 files changed, 26 insertions(+), 0 deletions(-)

    diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt
    index a8fee60..b98a11b 100644
    --- a/Documentation/devicetree/bindings/mfd/arizona.txt
    +++ b/Documentation/devicetree/bindings/mfd/arizona.txt
    @@ -73,6 +73,27 @@ Optional properties:
    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, set as one of the
    + ARIZONA_GPSW_XXX defines.
    +
    - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if
    they are being externally supplied. As covered in
    Documentation/devicetree/bindings/regulator/regulator.txt
    diff --git a/include/dt-bindings/mfd/arizona.h b/include/dt-bindings/mfd/arizona.h
    index c40f665..dedf46f 100644
    --- a/include/dt-bindings/mfd/arizona.h
    +++ b/include/dt-bindings/mfd/arizona.h
    @@ -110,4 +110,9 @@
    #define ARIZONA_ACCDET_MODE_HPM 4
    #define ARIZONA_ACCDET_MODE_ADC 7

    +#define ARIZONA_GPSW_OPEN 0
    +#define ARIZONA_GPSW_CLOSED 1
    +#define ARIZONA_GPSW_CLAMP_ENABLED 2
    +#define ARIZONA_GPSW_CLAMP_DISABLED 3
    +
    #endif
    --
    1.7.2.5


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