1 # SPDX-License-Identifier: GPL-2.0-only
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/sgtl5000.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale SGTL5000 Stereo Codec
8
9 maintainers:
10 - Fabio Estevam <festevam@gmail.com>
11
12 properties:
13 compatible:
14 const: fsl,sgtl5000
15
16 reg:
17 maxItems: 1
18
19 "#sound-dai-cells":
20 const: 0
21
22 assigned-clock-parents: true
23 assigned-clock-rates: true
24 assigned-clocks: true
25
26 clocks:
27 items:
28 - description: the clock provider of SYS_MCLK
29
30 VDDA-supply:
31 description: the regulator provider of VDDA
32
33 VDDIO-supply:
34 description: the regulator provider of VDDIO
35
36 VDDD-supply:
37 description: the regulator provider of VDDD
38
39 micbias-resistor-k-ohms:
40 description: The bias resistor to be used in kOhms. The resistor can take
41 values of 2k, 4k or 8k. If set to 0 it will be off. If this node is not
42 mentioned or if the value is unknown, then micbias resistor is set to
43 4k.
44 enum: [ 0, 2, 4, 8 ]
45
46 micbias-voltage-m-volts:
47 description: The bias voltage to be used in mVolts. The voltage can take
48 values from 1.25V to 3V by 250mV steps. If this node is not mentioned
49 or the value is unknown, then the value is set to 1.25V.
50 $ref: "/schemas/types.yaml#/definitions/uint32"
51 enum: [ 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000 ]
52
53 lrclk-strength:
54 description: |
55 The LRCLK pad strength. Possible values are: 0, 1, 2 and 3 as per the
56 table below:
57
58 VDDIO 1.8V 2.5V 3.3V
59 0 = Disable
60 1 = 1.66 mA 2.87 mA 4.02 mA
61 2 = 3.33 mA 5.74 mA 8.03 mA
62 3 = 4.99 mA 8.61 mA 12.05 mA
63 $ref: "/schemas/types.yaml#/definitions/uint32"
64 enum: [ 0, 1, 2, 3 ]
65
66 sclk-strength:
67 description: |
68 The SCLK pad strength. Possible values are: 0, 1, 2 and 3 as per the
69 table below:
70
71 VDDIO 1.8V 2.5V 3.3V
72 0 = Disable
73 1 = 1.66 mA 2.87 mA 4.02 mA
74 2 = 3.33 mA 5.74 mA 8.03 mA
75 3 = 4.99 mA 8.61 mA 12.05 mA
76 $ref: "/schemas/types.yaml#/definitions/uint32"
77 enum: [ 0, 1, 2, 3 ]
78
79 port:
80 $ref: audio-graph-port.yaml#
81 unevaluatedProperties: false
82
83 required:
84 - compatible
85 - reg
86 - "#sound-dai-cells"
87 - clocks
88 - VDDA-supply
89 - VDDIO-supply
90
91 additionalProperties: false
92
93 examples:
94 - |
95 i2c {
96 #address-cells = <1>;
97 #size-cells = <0>;
98
99 codec@a {
100 compatible = "fsl,sgtl5000";
101 reg = <0x0a>;
102 #sound-dai-cells = <0>;
103 clocks = <&clks 150>;
104 micbias-resistor-k-ohms = <2>;
105 micbias-voltage-m-volts = <2250>;
106 VDDA-supply = <®_3p3v>;
107 VDDIO-supply = <®_3p3v>;
108 };
109 };
110 ...
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