1 CS42L52 audio CODEC
2
3 Required properties:
4
5 - compatible : "cirrus,cs42l52"
6
7 - reg : the I2C address of the device for I2
8
9 Optional properties:
10
11 - cirrus,reset-gpio : GPIO controller's phan
12 of the GPIO used to reset the codec.
13
14 - cirrus,chgfreq-divisor : Values used to se
15 Allowable values of 0x00 through 0x0F. These
16 register, not the actual frequency. The freq
17 Frequency = (64xFs)/(N+2)
18 N = chgfreq_val
19 Fs = Sample Rate (variable)
20
21 - cirrus,mica-differential-cfg : boolean, If
22 as a differential input. If not present then
23 Single-ended input. Single-ended mode allows
24
25 - cirrus,micb-differential-cfg : boolean, If
26 as a differential input. If not present then
27 Single-ended input. Single-ended mode allows
28
29 - cirrus,micbias-lvl: Set the output voltage
30 0 = 0.5 x VA
31 1 = 0.6 x VA
32 2 = 0.7 x VA
33 3 = 0.8 x VA
34 4 = 0.83 x VA
35 5 = 0.91 x VA
36
37 Example:
38
39 codec: codec@4a {
40 compatible = "cirrus,cs42l52";
41 reg = <0x4a>;
42 reset-gpio = <&gpio 10 0>;
43 cirrus,chgfreq-divisor = <0x05>;
44 cirrus.mica-differential-cfg;
45 cirrus,micbias-lvl = <5>;
46 };
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