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-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.
-
- - wlf,use-jd2 : Use the additional JD input along with JD1 for dual pin jack
- detection.
- - wlf,use-jd2-nopull : Internal pull on JD2 is disabled when used for
- jack detection.
- - wlf,jd-invert : Invert the polarity of the jack detection switch
-
- - 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-ms : Timeout for microphone detection, specified in
- 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, set as one of the
- ARIZONA_GPSW_XXX defines.
-
-Example:
-
-codec: wm8280@0 {
- compatible = "wlf,wm8280";
- reg = <0>;
- ...
-
- wlf,use-jd2;
- wlf,use-jd2-nopull;
- wlf,jd-invert;
-
- wlf,micd-software-compare;
- wlf,micd-detect-debounce = <0>;
- wlf,micd-pol-gpio = <&codec 2 0>;
- wlf,micd-rate = <ARIZONA_MICD_TIME_8MS>;
- wlf,micd-dbtime = <4>;
- wlf,micd-timeout-ms = <100>;
- wlf,micd-force-micbias;
- wlf,micd-configs = <
- 0 1 0 /* MICDET1 MICBIAS1 GPIO=low */
- 1 2 1 /* MICDET2 MICBIAS2 GPIO=high */
- >;
-
- wlf,gpsw = <ARIZONA_GPSW_OPEN>;
-};