68 lines
2.1 KiB
Plaintext
Executable file
68 lines
2.1 KiB
Plaintext
Executable file
* Mediatek Technologies mt6357 ALSA SoC audio accdet driver
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This node models the Mediatek Technologies mt6357 ALSA SoC audio accdet driver
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Required properties:
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- compatible : One of "mediatek,mt6357-accdet", "mediatek,pmic-accdet"
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- accdet-name : named as "mt63xx-accdet" for snd_soc_card_jack
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- accdet-mic-vol : accdet micbias voltage
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0x09:2.85v 0x08:2.8v 0x07:2.7v 0x05:2.5v 0x02:1.9v
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- accdet-mic-mode : value as 1, 2, 6 to indicate ACC/DCC mode.
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default is DCC mode 2
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1:ACC mode, 2:low cost without in bias, 6:low cost with in bias
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- eint_use_ext_res : select VTH to 2v and 500k, default 0 use internal resistance.
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- headset-mode-setting : Indicates customized pwm, debounce setting
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accdet pwm_width, pwm_thresh, fall_delay, rise_delay
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debounce0, debounce1, debounce3, debounce4
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eint pwm_width, eint pwm_thresh
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eint deb(debounce0, debounce1, debounce2, debounce3), inv_debounce
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- headset-three-key-threshold : For 3key CDD device and define its threshold.
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0--MD_MAX--UP_MAX--DW_MAX
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- io-channels : declare which iio channel accdet used.
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- io-channel-names : named as "pmic_accdet"
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- nvmem : reference to pmic efuse node
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- nvmen-names : named as "mt63xx-accdet-efuse"
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Optional properties:
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- accdet-plugout-debounce : For using ap gpio eint only, it is sw debounce time.
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- headset-three-key-threshold-CDD : For 3key CDD device and define its threshold.
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threshold: 0--MD_MAX--UP_MAX--DW_MAX
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- headset-four-key-threshold : For 4key device and define its threshold.
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threshold: 0--MD_MAX--VOICE_MAX--UP_MAX--DW_MAX
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Example:
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&pwrap {
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pmic: pmic {
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pmic_accdet: pmic_accdet {
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compatible = "mediatek,mt6357-accdet";
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accdet-name = "mt63xx-accdet";
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accdet-mic-vol = <8>;
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accdet-plugout-debounce = <1>;
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accdet-mic-mode = <2>;
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eint_use_ext_res = <0>;
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headset-mode-setting = <0x500 0x500 1 0x1f0
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0x800 0x800 0x20 0x44
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0x4 0x1
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0x5 0x3 0x3 0x5 0xe>;
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headset-three-key-threshold = <0 80 220 400>;
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io-channels = <&pmic_auxadc AUXADC_ACCDET>;
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io-channel-names = "pmic_accdet";
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nvmem = <&pmic_efuse>;
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nvmen-names = "mt63xx-accdet-efuse";
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status = "okay";
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};
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};
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};
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