1 Dialog Semiconductor DA7218 Audio Codec bindings
2
3 DA7218 is an audio codec with HP detect feature.
4
5 ======
6
7 Required properties:
8 - compatible : Should be "dlg,da7217" or "dlg,da7218"
9 - reg: Specifies the I2C slave address
10
11 - VDD-supply: VDD power supply for the device
12 - VDDMIC-supply: VDDMIC power supply for the device
13 - VDDIO-supply: VDDIO power supply for the device
14 (See Documentation/devicetree/bindings/regulator/regulator.txt for further
15 information relating to regulators)
16
17 Optional properties:
18 - interrupts: IRQ line info for DA7218 chip.
19 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
20 further information relating to interrupt properties)
21 - interrupt-names : Name associated with interrupt line. Should be "wakeup" if
22 interrupt is to be used to wake system, otherwise "irq" should be used.
23 - wakeup-source: Flag to indicate this device can wake system (suspend/resume).
24
25 - clocks : phandle and clock specifier for codec MCLK.
26 - clock-names : Clock name string for 'clocks' attribute, should be "mclk".
27
28 - dlg,micbias1-lvl-millivolt : Voltage (mV) for Mic Bias 1
29 [<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>]
30 - dlg,micbias2-lvl-millivolt : Voltage (mV) for Mic Bias 2
31 [<1200>, <1600>, <1800>, <2000>, <2200>, <2400>, <2600>, <2800>, <3000>]
32 - dlg,mic1-amp-in-sel : Mic1 input source type
33 ["diff", "se_p", "se_n"]
34 - dlg,mic2-amp-in-sel : Mic2 input source type
35 ["diff", "se_p", "se_n"]
36 - dlg,dmic1-data-sel : DMIC1 channel select based on clock edge.
37 ["lrise_rfall", "lfall_rrise"]
38 - dlg,dmic1-samplephase : When to sample audio from DMIC1.
39 ["on_clkedge", "between_clkedge"]
40 - dlg,dmic1-clkrate-hz : DMic1 clock frequency (Hz).
41 [<1500000>, <3000000>]
42 - dlg,dmic2-data-sel : DMic2 channel select based on clock edge.
43 ["lrise_rfall", "lfall_rrise"]
44 - dlg,dmic2-samplephase : When to sample audio from DMic2.
45 ["on_clkedge", "between_clkedge"]
46 - dlg,dmic2-clkrate-hz : DMic2 clock frequency (Hz).
47 [<1500000>, <3000000>]
48 - dlg,hp-diff-single-supply : Boolean flag, use single supply for HP
49 (DA7217 only)
50
51 ======
52
53 Optional Child node - 'da7218_hpldet' (DA7218 only):
54
55 Optional properties:
56 - dlg,jack-rate-us : Time between jack detect measurements (us)
57 [<5>, <10>, <20>, <40>, <80>, <160>, <320>, <640>]
58 - dlg,jack-debounce : Number of debounce measurements taken for jack detect
59 [<0>, <2>, <3>, <4>]
60 - dlg,jack-threshold-pct : Threshold level for jack detection (% of VDD)
61 [<84>, <88>, <92>, <96>]
62 - dlg,comp-inv : Boolean flag, invert comparator output
63 - dlg,hyst : Boolean flag, enable hysteresis
64 - dlg,discharge : Boolean flag, auto discharge of Mic Bias on jack removal
65
66 ======
67
68 Example:
69
70 codec: da7218@1a {
71 compatible = "dlg,da7218";
72 reg = <0x1a>;
73 interrupt-parent = <&gpio6>;
74 interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
75 wakeup-source;
76
77 VDD-supply = <®_audio>;
78 VDDMIC-supply = <®_audio>;
79 VDDIO-supply = <®_audio>;
80
81 clocks = <&clks 201>;
82 clock-names = "mclk";
83
84 dlg,micbias1-lvl-millivolt = <2600>;
85 dlg,micbias2-lvl-millivolt = <2600>;
86 dlg,mic1-amp-in-sel = "diff";
87 dlg,mic2-amp-in-sel = "diff";
88
89 dlg,dmic1-data-sel = "lrise_rfall";
90 dlg,dmic1-samplephase = "on_clkedge";
91 dlg,dmic1-clkrate-hz = <3000000>;
92 dlg,dmic2-data-sel = "lrise_rfall";
93 dlg,dmic2-samplephase = "on_clkedge";
94 dlg,dmic2-clkrate-hz = <3000000>;
95
96 da7218_hpldet {
97 dlg,jack-rate-us = <40>;
98 dlg,jack-debounce = <2>;
99 dlg,jack-threshold-pct = <84>;
100 dlg,hyst;
101 };
102 };
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