summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/sound/da7219.txt
blob: c3df92d31c4b36e0e12e362d8f1068fb1ad5f314 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
Dialog Semiconductor DA7219 Audio Codec bindings

DA7219 is an audio codec with advanced accessory detect features.

======

Required properties:
- compatible : Should be "dlg,da7219"
- reg: Specifies the I2C slave address

- interrupt-parent : Specifies the phandle of the interrupt controller to which
  the IRQs from DA7219 are delivered to.
- interrupts : IRQ line info for DA7219.
  (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for
   further information relating to interrupt properties)

- 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:
- 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).

- #clock-cells :  Should be set to '<0>', only one clock source provided;
- clock-output-names : Name given for DAI clocks output;

- clocks : phandle and clock specifier for codec MCLK.
- clock-names : Clock name string for 'clocks' attribute, should be "mclk".

- dlg,micbias-lvl : Voltage (mV) for Mic Bias
	[<1600>, <1800>, <2000>, <2200>, <2400>, <2600>]
- dlg,mic-amp-in-sel : Mic input source type
	["diff", "se_p", "se_n"]

Deprecated properties:
- dlg,ldo-lvl : Required internal LDO voltage (mV) level for digital engine
  (LDO unavailable in production HW so property no longer required).

======

Child node - 'da7219_aad':

Optional properties:
- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV).
	[<2800>, <2900>]
- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms)
- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms)
	[<2>, <5>, <10>, <50>, <100>, <200>, <500>]
- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms)
	[<200>, <500>, <750>, <1000>]
- dlg,jack-ins-deb : Debounce time for jack insertion (ms)
	[<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>]
- dlg,jack-det-rate: Jack type detection latency (3/4 pole)
	["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"]
- dlg,jack-rem-deb : Debounce time for jack removal (ms)
	[<1>, <5>, <10>, <20>]
- dlg,a-d-btn-thr : Impedance threshold between buttons A and D
	[0x0 - 0xFF]
- dlg,d-b-btn-thr : Impedance threshold between buttons D and B
	[0x0 - 0xFF]
- dlg,b-c-btn-thr : Impedance threshold between buttons B and C
	[0x0 - 0xFF]
- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic
	[0x0 - 0xFF]
- dlg,btn-avg : Number of 8-bit readings for averaged button measurement
	[<1>, <2>, <4>, <8>]
- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement
	[<1>, <2>, <4>, <8>]

======

Example:

	codec: da7219@1a {
		compatible = "dlg,da7219";
		reg = <0x1a>;

		interrupt-parent = <&gpio6>;
		interrupts = <11 IRQ_TYPE_LEVEL_LOW>;

		VDD-supply = <&reg_audio>;
		VDDMIC-supply = <&reg_audio>;
		VDDIO-supply = <&reg_audio>;

		#clock-cells = <0>;
		clock-output-names = "dai-clks";

		clocks = <&clks 201>;
		clock-names = "mclk";

		dlg,ldo-lvl = <1200>;
		dlg,micbias-lvl = <2600>;
		dlg,mic-amp-in-sel = "diff";

		da7219_aad {
			dlg,btn-cfg = <50>;
			dlg,mic-det-thr = <500>;
			dlg,jack-ins-deb = <20>;
			dlg,jack-det-rate = "32ms_64ms";
			dlg,jack-rem-deb = <1>;

			dlg,a-d-btn-thr = <0xa>;
			dlg,d-b-btn-thr = <0x16>;
			dlg,b-c-btn-thr = <0x21>;
			dlg,c-mic-btn-thr = <0x3E>;

			dlg,btn-avg = <4>;
			dlg,adc-1bit-rpt = <1>;
		};
	};