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109 lines
3.4 KiB
Plaintext
109 lines
3.4 KiB
Plaintext
Dialog Semiconductor DA7219 Audio Codec bindings
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DA7219 is an audio codec with advanced accessory detect features.
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======
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Required properties:
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- compatible : Should be "dlg,da7219"
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- reg: Specifies the I2C slave address
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- interrupt-parent : Specifies the phandle of the interrupt controller to which
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the IRQs from DA7219 are delivered to.
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- interrupts : IRQ line info for DA7219.
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(See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
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further information relating to interrupt properties)
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- VDD-supply: VDD power supply for the device
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- VDDMIC-supply: VDDMIC power supply for the device
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- VDDIO-supply: VDDIO power supply for the device
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(See Documentation/devicetree/bindings/regulator/regulator.txt for further
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information relating to regulators)
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Optional properties:
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- interrupt-names : Name associated with interrupt line. Should be "wakeup" if
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interrupt is to be used to wake system, otherwise "irq" should be used.
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- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
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- clocks : phandle and clock specifier for codec MCLK.
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- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
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- dlg,micbias-lvl : Voltage (mV) for Mic Bias
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[<1600>, <1800>, <2000>, <2200>, <2400>, <2600>]
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- dlg,mic-amp-in-sel : Mic input source type
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["diff", "se_p", "se_n"]
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Deprecated properties:
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- dlg,ldo-lvl : Required internal LDO voltage (mV) level for digital engine
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(LDO unavailable in production HW so property no longer required).
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======
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Child node - 'da7219_aad':
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Optional properties:
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- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV).
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[<2800>, <2900>]
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- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
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- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms)
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[<2>, <5>, <10>, <50>, <100>, <200>, <500>]
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- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
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[<200>, <500>, <750>, <1000>]
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- dlg,jack-ins-deb : Debounce time for jack insertion (ms)
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[<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
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- dlg,jack-det-rate: Jack type detection latency (3/4 pole)
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["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
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- dlg,jack-rem-deb : Debounce time for jack removal (ms)
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[<1>, <5>, <10>, <20>]
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- dlg,a-d-btn-thr : Impedance threshold between buttons A and D
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[0x0 - 0xFF]
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- dlg,d-b-btn-thr : Impedance threshold between buttons D and B
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[0x0 - 0xFF]
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- dlg,b-c-btn-thr : Impedance threshold between buttons B and C
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[0x0 - 0xFF]
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- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic
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[0x0 - 0xFF]
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- dlg,btn-avg : Number of 8-bit readings for averaged button measurement
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[<1>, <2>, <4>, <8>]
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- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement
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[<1>, <2>, <4>, <8>]
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======
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Example:
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codec: da7219@1a {
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compatible = "dlg,da7219";
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reg = <0x1a>;
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interrupt-parent = <&gpio6>;
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interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
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VDD-supply = <®_audio>;
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VDDMIC-supply = <®_audio>;
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VDDIO-supply = <®_audio>;
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clocks = <&clks 201>;
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clock-names = "mclk";
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dlg,ldo-lvl = <1200>;
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dlg,micbias-lvl = <2600>;
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dlg,mic-amp-in-sel = "diff";
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da7219_aad {
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dlg,btn-cfg = <50>;
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dlg,mic-det-thr = <500>;
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dlg,jack-ins-deb = <20>;
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dlg,jack-det-rate = "32ms_64ms";
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dlg,jack-rem-deb = <1>;
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dlg,a-d-btn-thr = <0xa>;
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dlg,d-b-btn-thr = <0x16>;
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dlg,b-c-btn-thr = <0x21>;
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dlg,c-mic-btn-thr = <0x3E>;
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dlg,btn-avg = <4>;
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dlg,adc-1bit-rpt = <1>;
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};
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};
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