Commit | Line | Data |
---|---|---|
3a85ca9d BA |
1 | CS42L52 audio CODEC |
2 | ||
3 | Required properties: | |
4 | ||
5 | - compatible : "cirrus,cs42l52" | |
6 | ||
7 | - reg : the I2C address of the device for I2C | |
8 | ||
9 | Optional properties: | |
10 | ||
11 | - cirrus,reset-gpio : GPIO controller's phandle and the number | |
12 | of the GPIO used to reset the codec. | |
13 | ||
14 | - cirrus,chgfreq-divisor : Values used to set the Charge Pump Frequency. | |
15 | Allowable values of 0x00 through 0x0F. These are raw values written to the | |
16 | register, not the actual frequency. The frequency is determined by the following. | |
17 | Frequency = (64xFs)/(N+2) | |
18 | N = chgfreq_val | |
19 | Fs = Sample Rate (variable) | |
20 | ||
21 | - cirrus,mica-differential-cfg : boolean, If present, then the MICA input is configured | |
22 | as a differential input. If not present then the MICA input is configured as | |
23 | Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input. | |
24 | ||
25 | - cirrus,micb-differential-cfg : boolean, If present, then the MICB input is configured | |
26 | as a differential input. If not present then the MICB input is configured as | |
27 | Single-ended input. Single-ended mode allows for MIC1 or MIC2 muxing for input. | |
28 | ||
29 | - cirrus,micbias-lvl: Set the output voltage level on the MICBIAS Pin | |
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 | }; |