FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/qcom,msm8916-wcd-analog.txt

     msm8916 analog audio CODEC
     
     Bindings for codec Analog IP which is integrated in pmic pm8916,
     
     ## Bindings for codec core on pmic:
     
     Required properties
      - compatible = "qcom,pm8916-wcd-analog-codec";
      - reg: represents the slave base address provided to the peripheral.
     - interrupts: List of interrupts in given SPMI peripheral.
     - interrupt-names: Names specified to above list of interrupts in same
                        order. List of supported interrupt names are:
      "cdc_spk_cnp_int" - Speaker click and pop interrupt.
      "cdc_spk_clip_int" - Speaker clip interrupt.
      "cdc_spk_ocp_int" - Speaker over current protect interrupt.
      "mbhc_ins_rem_det1" - jack insert removal detect interrupt 1.
      "mbhc_but_rel_det" - button release interrupt.
      "mbhc_but_press_det" - button press event
      "mbhc_ins_rem_det" - jack insert removal detect interrupt.
      "mbhc_switch_int"     - multi button headset interrupt.
      "cdc_ear_ocp_int" - Earphone over current protect interrupt.
      "cdc_hphr_ocp_int" - Headphone R over current protect interrupt.
      "cdc_hphl_ocp_det" - Headphone L over current protect interrupt.
      "cdc_ear_cnp_int" - earphone cnp interrupt.
      "cdc_hphr_cnp_int" - hphr click and pop interrupt.
      "cdc_hphl_cnp_int" - hphl click and pop interrupt.
    
     - clocks: Handle to mclk.
     - clock-names: should be "mclk"
     - vdd-cdc-io-supply: phandle to VDD_CDC_IO regulator DT node.
     - vdd-cdc-tx-rx-cx-supply: phandle to VDD_CDC_TX/RX/CX regulator DT node.
     - vdd-micbias-supply: phandle of VDD_MICBIAS supply's regulator DT node.
    
    Optional Properties:
     - qcom,mbhc-vthreshold-low: Array of 5 threshold voltages in mV for 5 buttons
                                 detection on headset when the mbhc is powered up
                                 by internal current source, this is a low power.
     - qcom,mbhc-vthreshold-high: Array of 5 thresold voltages in mV for 5 buttons
                                  detection on headset when mbhc is powered up
                                   from micbias.
    - qcom,micbias-lvl:  Voltage (mV) for Mic Bias
    - qcom,hphl-jack-type-normally-open: boolean, present if hphl pin on jack is a
                                         NO (Normally Open). If not specified, then
                                         its assumed that hphl pin on jack is NC
                                         (Normally Closed).
    - qcom,gnd-jack-type-normally-open: boolean, present if gnd pin on jack is
                                        NO (Normally Open). If not specified, then
                                        its assumed that gnd pin on jack is NC
                                        (Normally Closed).
    - qcom,micbias1-ext-cap: boolean, present if micbias1 has external capacitor
                             connected.
    - qcom,micbias2-ext-cap: boolean, present if micbias2 has external capacitor
                             connected.
    
    Example:
    
    spmi_bus {
            ...
            audio-codec@f000{
                    compatible = "qcom,pm8916-wcd-analog-codec";
                    reg = <0xf000 0x200>;
                    reg-names = "pmic-codec-core";
                    clocks = <&gcc GCC_CODEC_DIGCODEC_CLK>;
                    clock-names = "mclk";
                    qcom,mbhc-vthreshold-low = <75 150 237 450 500>;
                    qcom,mbhc-vthreshold-high = <75 150 237 450 500>;
                    interrupt-parent = <&spmi_bus>;
                    interrupts = <0x1 0xf0 0x0 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x1 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x2 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x3 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x4 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x5 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x6 IRQ_TYPE_NONE>,
                                 <0x1 0xf0 0x7 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x0 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x1 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x2 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x3 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x4 IRQ_TYPE_NONE>,
                                 <0x1 0xf1 0x5 IRQ_TYPE_NONE>;
                    interrupt-names = "cdc_spk_cnp_int",
                                      "cdc_spk_clip_int",
                                      "cdc_spk_ocp_int",
                                      "mbhc_ins_rem_det1",
                                      "mbhc_but_rel_det",
                                      "mbhc_but_press_det",
                                      "mbhc_ins_rem_det",
                                      "mbhc_switch_int",
                                      "cdc_ear_ocp_int",
                                      "cdc_hphr_ocp_int",
                                      "cdc_hphl_ocp_det",
                                      "cdc_ear_cnp_int",
                                      "cdc_hphr_cnp_int",
                                      "cdc_hphl_cnp_int";
                           vdd-cdc-io-supply = <&pm8916_l5>;
                           vdd-cdc-tx-rx-cx-supply = <&pm8916_l5>;
                           vdd-micbias-supply = <&pm8916_l13>;
                           #sound-dai-cells = <1>;
           };
   };

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