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authorAdam Thomson2015-09-29 10:44:07 -0500
committerMark Brown2015-10-02 12:11:27 -0500
commitb29759ee29d5592b686bb42bb007179c215297c0 (patch)
treee209d97268eaf315d50b709f8dde86accd0db711 /Documentation/devicetree/bindings/sound/da7219.txt
parent6d817c0e9fd7536be76690bfdee88e8a81c16f7d (diff)
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ASoC: da7219: Add bindings documentation for DA7219 audio codec
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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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- interrupt-parent : Specifies the phandle of the interrupt controller to which
12 the IRQs from DA7219 are delivered to.
13- interrupts : IRQ line info for DA7219.
14 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
15 further information relating to interrupt properties)
16
17- VDD-supply: VDD power supply for the device
18- VDDMIC-supply: VDDMIC power supply for the device
19- VDDIO-supply: VDDIO power supply for the device
20 (See Documentation/devicetree/bindings/regulator/regulator.txt for further
21 information relating to regulators)
22
23Optional properties:
24- interrupt-names : Name associated with interrupt line. Should be "wakeup" if
25 interrupt is to be used to wake system, otherwise "irq" should be used.
26- wakeup-source: Flag to indicate this device can wake system (suspend/resume).
27
28- clocks : phandle and clock specifier for codec MCLK.
29- clock-names : Clock name string for 'clocks' attribute, should be "mclk".
30
31- dlg,ldo-lvl : Required internal LDO voltage (mV) level for digital engine
32 [<1050>, <1100>, <1200>, <1400>]
33- dlg,micbias-lvl : Voltage (mV) for Mic Bias
34 [<1800>, <2000>, <2200>, <2400>, <2600>]
35- dlg,mic-amp-in-sel : Mic input source type
36 ["diff", "se_p", "se_n"]
37
38======
39
40Child node - 'da7219_aad':
41
42Optional properties:
43- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV).
44 [<2800>, <2900>]
45- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
46- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms)
47 [<2>, <5>, <10>, <50>, <100>, <200>, <500>]
48- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
49 [<200>, <500>, <750>, <1000>]
50- dlg,jack-ins-deb : Debounce time for jack insertion (ms)
51 [<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
52- dlg,jack-det-rate: Jack type detection latency (3/4 pole)
53 ["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
54- dlg,jack-rem-deb : Debounce time for jack removal (ms)
55 [<1>, <5>, <10>, <20>]
56- dlg,a-d-btn-thr : Impedance threshold between buttons A and D
57 [0x0 - 0xFF]
58- dlg,d-b-btn-thr : Impedance threshold between buttons D and B
59 [0x0 - 0xFF]
60- dlg,b-c-btn-thr : Impedance threshold between buttons B and C
61 [0x0 - 0xFF]
62- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic
63 [0x0 - 0xFF]
64- dlg,btn-avg : Number of 8-bit readings for averaged button measurement
65 [<1>, <2>, <4>, <8>]
66- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement
67 [<1>, <2>, <4>, <8>]
68
69======
70
71Example:
72
73 codec: da7219@1a {
74 compatible = "dlg,da7219";
75 reg = <0x1a>;
76
77 interrupt-parent = <&gpio6>;
78 interrupts = <11 IRQ_TYPE_LEVEL_HIGH>;
79
80 VDD-supply = <&reg_audio>;
81 VDDMIC-supply = <&reg_audio>;
82 VDDIO-supply = <&reg_audio>;
83
84 clocks = <&clks 201>;
85 clock-names = "mclk";
86
87 dlg,ldo-lvl = <1200>;
88 dlg,micbias-lvl = <2600>;
89 dlg,mic-amp-in-sel = "diff";
90
91 da7219_aad {
92 dlg,btn-cfg = <50>;
93 dlg,mic-det-thr = <500>;
94 dlg,jack-ins-deb = <20>;
95 dlg,jack-det-rate = "32ms_64ms";
96 dlg,jack-rem-deb = <1>;
97
98 dlg,a-d-btn-thr = <0xa>;
99 dlg,d-b-btn-thr = <0x16>;
100 dlg,b-c-btn-thr = <0x21>;
101 dlg,c-mic-btn-thr = <0x3E>;
102
103 dlg,btn-avg = <4>;
104 dlg,adc-1bit-rpt = <1>;
105 };
106 };