projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5530ef11 CK |
1 | Cirrus Logic Arizona class audio SoCs |
| 2 | ||
| 3 | These devices are audio SoCs with extensive digital capabilities and a range | |
| 4 | of analogue I/O. | |
| 5 | ||
| 6 | This document lists Extcon specific bindings, see the primary binding document: | |
| 7 | ../mfd/arizona.txt | |
| 8 | ||
| 9 | Optional properties: | |
| 10 | ||
| 11 | - wlf,hpdet-channel : Headphone detection channel. | |
| 12 | ARIZONA_ACCDET_MODE_HPL or 1 - Headphone detect mode is set to HPDETL | |
| 13 | ARIZONA_ACCDET_MODE_HPR or 2 - Headphone detect mode is set to HPDETR | |
| 14 | If this node is not mentioned or if the value is unknown, then | |
| 15 | headphone detection mode is set to HPDETL. | |
| afe33009 | 16 | |
| 832df9e8 | 17 | - wlf,use-jd2 : Use the additional JD input along with JD1 for dual pin jack |
| 36a86872 | 18 | detection. |
| 832df9e8 | 19 | - wlf,use-jd2-nopull : Internal pull on JD2 is disabled when used for |
| 36a86872 CK |
20 | jack detection. |
| 21 | - wlf,jd-invert : Invert the polarity of the jack detection switch | |
| 22 | ||
| afe33009 CK |
23 | - wlf,micd-software-compare : Use a software comparison to determine mic |
| 24 | presence | |
| 25 | - wlf,micd-detect-debounce : Additional software microphone detection | |
| 26 | debounce specified in milliseconds. | |
| 27 | - wlf,micd-pol-gpio : GPIO specifier for the GPIO controlling the headset | |
| 28 | polarity if one exists. | |
| 29 | - wlf,micd-bias-start-time : Time allowed for MICBIAS to startup prior to | |
| 30 | performing microphone detection, specified as per the ARIZONA_MICD_TIME_XXX | |
| 31 | defines. | |
| 32 | - wlf,micd-rate : Delay between successive microphone detection measurements, | |
| 33 | specified as per the ARIZONA_MICD_TIME_XXX defines. | |
| 34 | - wlf,micd-dbtime : Microphone detection hardware debounces specified as the | |
| 35 | number of measurements to take, valid values being 2 and 4. | |
| 7a7ef0f2 | 36 | - wlf,micd-timeout-ms : Timeout for microphone detection, specified in |
| afe33009 CK |
37 | milliseconds. |
| 38 | - wlf,micd-force-micbias : Force MICBIAS continuously on during microphone | |
| 39 | detection. | |
| cb0eac8f CK |
40 | - wlf,micd-configs : Headset polarity configurations (generally used for |
| 41 | detection of CTIA / OMTP headsets), the field can be of variable length | |
| 42 | but should always be a multiple of 3 cells long, each three cell group | |
| 43 | represents one polarity configuration. | |
| 44 | The first cell defines the accessory detection pin, zero will use MICDET1 | |
| 45 | and all other values will use MICDET2. | |
| 46 | The second cell represents the MICBIAS to be used. | |
| 47 | The third cell represents the value of the micd-pol-gpio pin. | |
| afe33009 | 48 | |
| 846d9ce5 CK |
49 | - wlf,gpsw : Settings for the general purpose switch, set as one of the |
| 50 | ARIZONA_GPSW_XXX defines. | |
| 36e2693b CK |
51 | |
| 52 | Example: | |
| 53 | ||
| 54 | codec: wm8280@0 { | |
| 55 | compatible = "wlf,wm8280"; | |
| 56 | reg = <0>; | |
| 57 | ... | |
| 58 | ||
| 59 | wlf,use-jd2; | |
| 60 | wlf,use-jd2-nopull; | |
| 61 | wlf,jd-invert; | |
| 62 | ||
| 63 | wlf,micd-software-compare; | |
| 64 | wlf,micd-detect-debounce = <0>; | |
| 65 | wlf,micd-pol-gpio = <&codec 2 0>; | |
| 66 | wlf,micd-rate = <ARIZONA_MICD_TIME_8MS>; | |
| 67 | wlf,micd-dbtime = <4>; | |
| 68 | wlf,micd-timeout-ms = <100>; | |
| 69 | wlf,micd-force-micbias; | |
| 70 | wlf,micd-configs = < | |
| 71 | 0 1 0 /* MICDET1 MICBIAS1 GPIO=low */ | |
| 72 | 1 2 1 /* MICDET2 MICBIAS2 GPIO=high */ | |
| 73 | >; | |
| 74 | ||
| 75 | wlf,gpsw = <0>; | |
| 76 | }; |