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Diffstat (limited to 'Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt')
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1 files changed, 101 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt new file mode 100644 index 000000000..e7d17dda5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt @@ -0,0 +1,101 @@ +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>; + }; +}; |