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1Dialog Semiconductor DA7219 Audio Codec bindings
2
3DA7219 is an audio codec with advanced accessory detect features.
4
5======
6
7Required properties:
8- compatible : Should be "dlg,da7219"
9- reg: Specifies the I2C slave address
10
11- interrupts : IRQ line info for DA7219.
12 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
13 further information relating to interrupt properties)
14
15- VDD-supply: VDD power supply for the device
16- VDDMIC-supply: VDDMIC power supply for the device
17- VDDIO-supply: VDDIO power supply for the device
18 (See Documentation/devicetree/bindings/regulator/regulator.txt for further
19 information relating to regulators)
20
21Optional properties:
22- interrupt-names : Name associated with interrupt line. Should be "wakeup" if
23 interrupt is to be used to wake system, otherwise "irq" should be used.
24- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
25
26- #clock-cells : Should be set to '<1>', two clock sources provided;
27- clock-output-names : Names given for DAI clock outputs (WCLK & BCLK);
28
29- clocks : phandle and clock specifier for codec MCLK.
30- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
31
32- dlg,micbias-lvl : Voltage (mV) for Mic Bias
33 [<1600>, <1800>, <2000>, <2200>, <2400>, <2600>]
34- dlg,mic-amp-in-sel : Mic input source type
35 ["diff", "se_p", "se_n"]
36
37Deprecated properties:
38- dlg,ldo-lvl : Required internal LDO voltage (mV) level for digital engine
39 (LDO unavailable in production HW so property no longer required).
40
41======
42
43Child node - 'da7219_aad':
44
45Optional properties:
46- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV).
47 [<2800>, <2900>]
48- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
49- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms)
50 [<2>, <5>, <10>, <50>, <100>, <200>, <500>]
51- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
52 [<200>, <500>, <750>, <1000>]
53- dlg,jack-ins-deb : Debounce time for jack insertion (ms)
54 [<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
55- dlg,jack-det-rate: Jack type detection latency (3/4 pole)
56 ["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
57- dlg,jack-rem-deb : Debounce time for jack removal (ms)
58 [<1>, <5>, <10>, <20>]
59- dlg,a-d-btn-thr : Impedance threshold between buttons A and D
60 [0x0 - 0xFF]
61- dlg,d-b-btn-thr : Impedance threshold between buttons D and B
62 [0x0 - 0xFF]
63- dlg,b-c-btn-thr : Impedance threshold between buttons B and C
64 [0x0 - 0xFF]
65- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic
66 [0x0 - 0xFF]
67- dlg,btn-avg : Number of 8-bit readings for averaged button measurement
68 [<1>, <2>, <4>, <8>]
69- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement
70 [<1>, <2>, <4>, <8>]
71
72======
73
74Example:
75
76 codec: da7219@1a {
77 compatible = "dlg,da7219";
78 reg = <0x1a>;
79
80 interrupt-parent = <&gpio6>;
81 interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
82
83 VDD-supply = <®_audio>;
84 VDDMIC-supply = <®_audio>;
85 VDDIO-supply = <®_audio>;
86
87 #clock-cells = <1>;
88 clock-output-names = "dai-wclk", "dai-bclk";
89
90 clocks = <&clks 201>;
91 clock-names = "mclk";
92
93 dlg,ldo-lvl = <1200>;
94 dlg,micbias-lvl = <2600>;
95 dlg,mic-amp-in-sel = "diff";
96
97 da7219_aad {
98 dlg,btn-cfg = <50>;
99 dlg,mic-det-thr = <500>;
100 dlg,jack-ins-deb = <20>;
101 dlg,jack-det-rate = "32ms_64ms";
102 dlg,jack-rem-deb = <1>;
103
104 dlg,a-d-btn-thr = <0xa>;
105 dlg,d-b-btn-thr = <0x16>;
106 dlg,b-c-btn-thr = <0x21>;
107 dlg,c-mic-btn-thr = <0x3E>;
108
109 dlg,btn-avg = <4>;
110 dlg,adc-1bit-rpt = <1>;
111 };
112 };