tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
7title: Freescale SGTL5000 Stereo Codec
8
9maintainers:
10 - Fabio Estevam <festevam@gmail.com>
11
12properties:
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 enum: [ 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000 ]
51
52 lrclk-strength:
53 description: |
54 The LRCLK pad strength. Possible values are: 0, 1, 2 and 3 as per the
55 table below:
56
57 VDDIO 1.8V 2.5V 3.3V
58 0 = Disable
59 1 = 1.66 mA 2.87 mA 4.02 mA
60 2 = 3.33 mA 5.74 mA 8.03 mA
61 3 = 4.99 mA 8.61 mA 12.05 mA
62 $ref: "/schemas/types.yaml#/definitions/uint32"
63 enum: [ 0, 1, 2, 3 ]
64
65 sclk-strength:
66 description: |
67 The SCLK pad strength. Possible values are: 0, 1, 2 and 3 as per the
68 table below:
69
70 VDDIO 1.8V 2.5V 3.3V
71 0 = Disable
72 1 = 1.66 mA 2.87 mA 4.02 mA
73 2 = 3.33 mA 5.74 mA 8.03 mA
74 3 = 4.99 mA 8.61 mA 12.05 mA
75 $ref: "/schemas/types.yaml#/definitions/uint32"
76 enum: [ 0, 1, 2, 3 ]
77
78required:
79 - compatible
80 - reg
81 - "#sound-dai-cells"
82 - clocks
83 - VDDA-supply
84 - VDDIO-supply
85
86additionalProperties: false
87
88examples:
89 - |
90 i2c {
91 #address-cells = <1>;
92 #size-cells = <0>;
93
94 codec@a {
95 compatible = "fsl,sgtl5000";
96 reg = <0x0a>;
97 #sound-dai-cells = <0>;
98 clocks = <&clks 150>;
99 micbias-resistor-k-ohms = <2>;
100 micbias-voltage-m-volts = <2250>;
101 VDDA-supply = <®_3p3v>;
102 VDDIO-supply = <®_3p3v>;
103 };
104 };
105...