1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * mt7986-wm8960.c -- MT7986-WM8960 ALSA SoC machine driver
4 *
5 * Copyright (c) 2023 MediaTek Inc.
6 * Authors: Vic Wu <[email protected]>
7 * Maso Huang <[email protected]>
8 */
9
10 #include <linux/module.h>
11 #include <sound/soc.h>
12
13 #include "mt7986-afe-common.h"
14
15 static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
16 SND_SOC_DAPM_HP("Headphone", NULL),
17 SND_SOC_DAPM_MIC("AMIC", NULL),
18 };
19
20 static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
21 SOC_DAPM_PIN_SWITCH("Headphone"),
22 SOC_DAPM_PIN_SWITCH("AMIC"),
23 };
24
25 SND_SOC_DAILINK_DEFS(playback,
26 DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
27 DAILINK_COMP_ARRAY(COMP_DUMMY()),
28 DAILINK_COMP_ARRAY(COMP_EMPTY()));
29
30 SND_SOC_DAILINK_DEFS(capture,
31 DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
32 DAILINK_COMP_ARRAY(COMP_DUMMY()),
33 DAILINK_COMP_ARRAY(COMP_EMPTY()));
34
35 SND_SOC_DAILINK_DEFS(codec,
36 DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
37 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
38 DAILINK_COMP_ARRAY(COMP_EMPTY()));
39
40 static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
41 /* FE */
42 {
43 .name = "wm8960-playback",
44 .stream_name = "wm8960-playback",
45 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
46 SND_SOC_DPCM_TRIGGER_POST},
47 .dynamic = 1,
48 .playback_only = 1,
49 SND_SOC_DAILINK_REG(playback),
50 },
51 {
52 .name = "wm8960-capture",
53 .stream_name = "wm8960-capture",
54 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
55 SND_SOC_DPCM_TRIGGER_POST},
56 .dynamic = 1,
57 .capture_only = 1,
58 SND_SOC_DAILINK_REG(capture),
59 },
60 /* BE */
61 {
62 .name = "wm8960-codec",
63 .no_pcm = 1,
64 .dai_fmt = SND_SOC_DAIFMT_I2S |
65 SND_SOC_DAIFMT_NB_NF |
66 SND_SOC_DAIFMT_CBS_CFS |
67 SND_SOC_DAIFMT_GATED,
68 SND_SOC_DAILINK_REG(codec),
69 },
70 };
71
72 static struct snd_soc_card mt7986_wm8960_card = {
73 .name = "mt7986-wm8960",
74 .owner = THIS_MODULE,
75 .dai_link = mt7986_wm8960_dai_links,
76 .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
77 .controls = mt7986_wm8960_controls,
78 .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
79 .dapm_widgets = mt7986_wm8960_widgets,
80 .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
81 };
82
mt7986_wm8960_machine_probe(struct platform_device * pdev)83 static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
84 {
85 struct snd_soc_card *card = &mt7986_wm8960_card;
86 struct snd_soc_dai_link *dai_link;
87 struct device_node *platform, *codec;
88 struct device_node *platform_dai_node, *codec_dai_node;
89 int ret, i;
90
91 card->dev = &pdev->dev;
92
93 platform = of_get_child_by_name(pdev->dev.of_node, "platform");
94
95 if (platform) {
96 platform_dai_node = of_parse_phandle(platform, "sound-dai", 0);
97 of_node_put(platform);
98
99 if (!platform_dai_node) {
100 dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
101 return -EINVAL;
102 }
103 } else {
104 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
105 return -EINVAL;
106 }
107
108 for_each_card_prelinks(card, i, dai_link) {
109 if (dai_link->platforms->name)
110 continue;
111 dai_link->platforms->of_node = platform_dai_node;
112 }
113
114 codec = of_get_child_by_name(pdev->dev.of_node, "codec");
115
116 if (codec) {
117 codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
118 of_node_put(codec);
119
120 if (!codec_dai_node) {
121 of_node_put(platform_dai_node);
122 dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
123 return -EINVAL;
124 }
125 } else {
126 of_node_put(platform_dai_node);
127 dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
128 return -EINVAL;
129 }
130
131 for_each_card_prelinks(card, i, dai_link) {
132 if (dai_link->codecs->name)
133 continue;
134 dai_link->codecs->of_node = codec_dai_node;
135 }
136
137 ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
138 if (ret) {
139 dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
140 goto err_of_node_put;
141 }
142
143 ret = devm_snd_soc_register_card(&pdev->dev, card);
144 if (ret) {
145 dev_err_probe(&pdev->dev, ret, "%s snd_soc_register_card fail\n", __func__);
146 goto err_of_node_put;
147 }
148
149 err_of_node_put:
150 of_node_put(platform_dai_node);
151 of_node_put(codec_dai_node);
152 return ret;
153 }
154
155 static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
156 {.compatible = "mediatek,mt7986-wm8960-sound"},
157 { /* sentinel */ }
158 };
159 MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
160
161 static struct platform_driver mt7986_wm8960_machine = {
162 .driver = {
163 .name = "mt7986-wm8960",
164 .of_match_table = mt7986_wm8960_machine_dt_match,
165 },
166 .probe = mt7986_wm8960_machine_probe,
167 };
168
169 module_platform_driver(mt7986_wm8960_machine);
170
171 /* Module information */
172 MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
173 MODULE_AUTHOR("Vic Wu <[email protected]>");
174 MODULE_LICENSE("GPL");
175 MODULE_ALIAS("mt7986 wm8960 soc card");
176