1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/samsu
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Samsung Midas audio complex with WM1811
8
9 maintainers:
10 - Sylwester Nawrocki <s.nawrocki@samsung.com>
11
12 allOf:
13 - $ref: sound-card-common.yaml#
14
15 properties:
16 compatible:
17 const: samsung,midas-audio
18
19 cpu:
20 type: object
21 additionalProperties: false
22 properties:
23 sound-dai:
24 maxItems: 1
25 description: phandle to the I2S contro
26 required:
27 - sound-dai
28
29 codec:
30 type: object
31 additionalProperties: false
32 properties:
33 sound-dai:
34 maxItems: 1
35 description: phandle to the WM1811 COD
36 required:
37 - sound-dai
38
39 samsung,audio-routing:
40 deprecated: true
41 $ref: /schemas/types.yaml#/definitions/non
42 description: |
43 List of the connections between audio co
44 a pair of strings, the first being the c
45 being the connection's source; valid nam
46 the WM1811's pins (as documented in its
47 on the board: HP, SPK, Main Mic, Sub Mic
48 Deprecated, use audio-routing.
49
50 mic-bias-supply:
51 description: Supply for the micbias on the
52
53 submic-bias-supply:
54 description: Supply for the micbias on the
55
56 headset-mic-bias-supply:
57 description: Supply for the micbias on the
58
59 fm-sel-gpios:
60 maxItems: 1
61 description: GPIO pin for FM selection
62
63 lineout-sel-gpios:
64 maxItems: 1
65 description: GPIO pin for line out selecti
66
67 headset-detect-gpios:
68 maxItems: 1
69 description: GPIO for detection of headset
70
71 headset-key-gpios:
72 maxItems: 1
73 description: GPIO for detection of headset
74
75 io-channels:
76 maxItems: 1
77 description: IO channel to read micbias vo
78
79 io-channel-names:
80 const: headset-detect
81
82 samsung,headset-4pole-threshold-microvolt:
83 minItems: 2
84 maxItems: 2
85 description:
86 Array containing minimum and maximum IO
87 (with microphone/button) headsets. If th
88 outside of this range, a 3-pole headset
89
90 samsung,headset-button-threshold-microvolt:
91 minItems: 3
92 maxItems: 3
93 description: |
94 Array of minimum (inclusive) IO channel
95 detection, in order: "Media", "Volume Up
96
97 required:
98 - compatible
99 - cpu
100 - codec
101 - audio-routing
102 - mic-bias-supply
103 - submic-bias-supply
104
105 unevaluatedProperties: false
106
107 examples:
108 - |
109 #include <dt-bindings/gpio/gpio.h>
110
111 sound {
112 compatible = "samsung,midas-audio";
113 model = "Midas";
114
115 fm-sel-gpios = <&gpaa0 3 GPIO_ACTIVE_H
116
117 mic-bias-supply = <&mic_bias_reg>;
118 submic-bias-supply = <&submic_bias_reg
119
120 audio-routing =
121 "HP", "HPOUT1L",
122 "HP", "HPOUT1R",
123
124 "SPK", "SPKOUTLN",
125 "SPK", "SPKOUTLP",
126 "SPK", "SPKOUTRN",
127 "SPK", "SPKOUTRP",
128
129 "RCV", "HPOUT2N",
130 "RCV", "HPOUT2P",
131
132 "IN1LP", "Main Mic",
133 "IN1LN", "Main Mic",
134 "IN1RP", "Sub Mic",
135 "IN1LP", "Sub Mic";
136
137 cpu {
138 sound-dai = <&i2s0>;
139 };
140
141 codec {
142 sound-dai = <&wm1811>;
143 };
144
145 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.