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Dialog Semiconductor DA7218 Audio Codec bindings
DA7218 is an audio codec with HP detect feature.
======
Required properties:
- compatible : Should be "dlg,da7217" or "dlg,da7218"
- reg: Specifies the I2C slave address
- VDD-supply: VDD power supply for the device
- VDDMIC-supply: VDDMIC power supply for the device
- VDDIO-supply: VDDIO power supply for the device
(See Documentation/devicetree/bindings/regulator/regulator.txt for further
information relating to regulators)
Optional properties:
- interrupts: IRQ line info for DA7218 chip.
(See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
further information relating to interrupt properties)
- interrupt-names : Name associated with interrupt line. Should be "wakeup" if
interrupt is to be used to wake system, otherwise "irq" should be used.
- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
- clocks : phandle and clock specifier for codec MCLK.
- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
- dlg,micbias1-lvl-millivolt : Voltage (mV) for Mic Bias 1
[<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>]
- dlg,micbias2-lvl-millivolt : Voltage (mV) for Mic Bias 2
[<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>]
- dlg,mic1-amp-in-sel : Mic1 input source type
["diff", "se_p", "se_n"]
- dlg,mic2-amp-in-sel : Mic2 input source type
["diff", "se_p", "se_n"]
- dlg,dmic1-data-sel : DMIC1 channel select based on clock edge.
["lrise_rfall", "lfall_rrise"]
- dlg,dmic1-samplephase : When to sample audio from DMIC1.
["on_clkedge", "between_clkedge"]
- dlg,dmic1-clkrate-hz : DMic1 clock frequency (Hz).
[<1500000>, <3000000>]
- dlg,dmic2-data-sel : DMic2 channel select based on clock edge.
["lrise_rfall", "lfall_rrise"]
- dlg,dmic2-samplephase : When to sample audio from DMic2.
["on_clkedge", "between_clkedge"]
- dlg,dmic2-clkrate-hz : DMic2 clock frequency (Hz).
[<1500000>, <3000000>]
- dlg,hp-diff-single-supply : Boolean flag, use single supply for HP
(DA7217 only)
======
Optional Child node - 'da7218_hpldet' (DA7218 only):
Optional properties:
- dlg,jack-rate-us : Time between jack detect measurements (us)
[<5>, <10>, <20>, <40>, <80>, <160>, <320>, <640>]
- dlg,jack-debounce : Number of debounce measurements taken for jack detect
[<0>, <2>, <3>, <4>]
- dlg,jack-threshold-pct : Threshold level for jack detection (% of VDD)
[<84>, <88>, <92>, <96>]
- dlg,comp-inv : Boolean flag, invert comparator output
- dlg,hyst : Boolean flag, enable hysteresis
- dlg,discharge : Boolean flag, auto discharge of Mic Bias on jack removal
======
Example:
codec: da7218@1a {
compatible = "dlg,da7218";
reg = <0x1a>;
interrupt-parent = <&gpio6>;
interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
wakeup-source;
VDD-supply = <®_audio>;
VDDMIC-supply = <®_audio>;
VDDIO-supply = <®_audio>;
clocks = <&clks 201>;
clock-names = "mclk";
dlg,micbias1-lvl-millivolt = <2600>;
dlg,micbias2-lvl-millivolt = <2600>;
dlg,mic1-amp-in-sel = "diff";
dlg,mic2-amp-in-sel = "diff";
dlg,dmic1-data-sel = "lrise_rfall";
dlg,dmic1-samplephase = "on_clkedge";
dlg,dmic1-clkrate-hz = <3000000>;
dlg,dmic2-data-sel = "lrise_rfall";
dlg,dmic2-samplephase = "on_clkedge";
dlg,dmic2-clkrate-hz = <3000000>;
da7218_hpldet {
dlg,jack-rate-us = <40>;
dlg,jack-debounce = <2>;
dlg,jack-threshold-pct = <84>;
dlg,hyst;
};
};
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