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-rw-r--r--sound/soc/mediatek/mt8173-max98090.c213
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diff --git a/sound/soc/mediatek/mt8173-max98090.c b/sound/soc/mediatek/mt8173-max98090.c
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1/*
2 * mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver
3 *
4 * Copyright (c) 2015 MediaTek Inc.
5 * Author: Koro Chen <koro.chen@mediatek.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 and
9 * only version 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17#include <linux/module.h>
18#include <sound/soc.h>
19#include <sound/jack.h>
20#include <linux/gpio.h>
21#include "../codecs/max98090.h"
22
23static struct snd_soc_jack mt8173_max98090_jack;
24
25static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = {
26 {
27 .pin = "Headphone",
28 .mask = SND_JACK_HEADPHONE,
29 },
30 {
31 .pin = "Headset Mic",
32 .mask = SND_JACK_MICROPHONE,
33 },
34};
35
36static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = {
37 SND_SOC_DAPM_SPK("Speaker", NULL),
38 SND_SOC_DAPM_MIC("Int Mic", NULL),
39 SND_SOC_DAPM_HP("Headphone", NULL),
40 SND_SOC_DAPM_MIC("Headset Mic", NULL),
41};
42
43static const struct snd_soc_dapm_route mt8173_max98090_routes[] = {
44 {"Speaker", NULL, "SPKL"},
45 {"Speaker", NULL, "SPKR"},
46 {"DMICL", NULL, "Int Mic"},
47 {"Headphone", NULL, "HPL"},
48 {"Headphone", NULL, "HPR"},
49 {"Headset Mic", NULL, "MICBIAS"},
50 {"IN34", NULL, "Headset Mic"},
51};
52
53static const struct snd_kcontrol_new mt8173_max98090_controls[] = {
54 SOC_DAPM_PIN_SWITCH("Speaker"),
55 SOC_DAPM_PIN_SWITCH("Int Mic"),
56 SOC_DAPM_PIN_SWITCH("Headphone"),
57 SOC_DAPM_PIN_SWITCH("Headset Mic"),
58};
59
60static int mt8173_max98090_hw_params(struct snd_pcm_substream *substream,
61 struct snd_pcm_hw_params *params)
62{
63 struct snd_soc_pcm_runtime *rtd = substream->private_data;
64 struct snd_soc_dai *codec_dai = rtd->codec_dai;
65
66 return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256,
67 SND_SOC_CLOCK_IN);
68}
69
70static struct snd_soc_ops mt8173_max98090_ops = {
71 .hw_params = mt8173_max98090_hw_params,
72};
73
74static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime)
75{
76 int ret;
77 struct snd_soc_card *card = runtime->card;
78 struct snd_soc_codec *codec = runtime->codec;
79
80 /* enable jack detection */
81 ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE,
82 &mt8173_max98090_jack, NULL, 0);
83 if (ret) {
84 dev_err(card->dev, "Can't snd_soc_jack_new %d\n", ret);
85 return ret;
86 }
87
88 ret = snd_soc_jack_add_pins(&mt8173_max98090_jack,
89 ARRAY_SIZE(mt8173_max98090_jack_pins),
90 mt8173_max98090_jack_pins);
91 if (ret) {
92 dev_err(card->dev, "Can't snd_soc_jack_add_pins %d\n", ret);
93 return ret;
94 }
95
96 return max98090_mic_detect(codec, &mt8173_max98090_jack);
97}
98
99/* Digital audio interface glue - connects codec <---> CPU */
100static struct snd_soc_dai_link mt8173_max98090_dais[] = {
101 /* Front End DAI links */
102 {
103 .name = "MAX98090 Playback",
104 .stream_name = "MAX98090 Playback",
105 .cpu_dai_name = "DL1",
106 .platform_name = "11220000.mt8173-afe-pcm",
107 .codec_name = "snd-soc-dummy",
108 .codec_dai_name = "snd-soc-dummy-dai",
109 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
110 .dynamic = 1,
111 .dpcm_playback = 1,
112 },
113 {
114 .name = "MAX98090 Capture",
115 .stream_name = "MAX98090 Capture",
116 .cpu_dai_name = "VUL",
117 .platform_name = "11220000.mt8173-afe-pcm",
118 .codec_name = "snd-soc-dummy",
119 .codec_dai_name = "snd-soc-dummy-dai",
120 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
121 .dynamic = 1,
122 .dpcm_capture = 1,
123 },
124 /* Back End DAI links */
125 {
126 .name = "Codec",
127 .cpu_dai_name = "I2S",
128 .platform_name = "11220000.mt8173-afe-pcm",
129 .no_pcm = 1,
130 .codec_dai_name = "HiFi",
131 .init = mt8173_max98090_init,
132 .ops = &mt8173_max98090_ops,
133 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
134 SND_SOC_DAIFMT_CBS_CFS,
135 .dpcm_playback = 1,
136 .dpcm_capture = 1,
137 },
138};
139
140static struct snd_soc_card mt8173_max98090_card = {
141 .name = "mt8173-max98090",
142 .dai_link = mt8173_max98090_dais,
143 .num_links = ARRAY_SIZE(mt8173_max98090_dais),
144 .controls = mt8173_max98090_controls,
145 .num_controls = ARRAY_SIZE(mt8173_max98090_controls),
146 .dapm_widgets = mt8173_max98090_widgets,
147 .num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets),
148 .dapm_routes = mt8173_max98090_routes,
149 .num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes),
150};
151
152static int mt8173_max98090_dev_probe(struct platform_device *pdev)
153{
154 struct snd_soc_card *card = &mt8173_max98090_card;
155 struct device_node *codec_node;
156 int ret, i;
157
158 codec_node = of_parse_phandle(pdev->dev.of_node,
159 "mediatek,audio-codec", 0);
160 if (!codec_node) {
161 dev_err(&pdev->dev,
162 "Property 'audio-codec' missing or invalid\n");
163 return -EINVAL;
164 }
165 for (i = 0; i < card->num_links; i++) {
166 if (mt8173_max98090_dais[i].codec_name)
167 continue;
168 mt8173_max98090_dais[i].codec_of_node = codec_node;
169 }
170 card->dev = &pdev->dev;
171
172 ret = snd_soc_register_card(card);
173 if (ret)
174 dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n",
175 __func__, ret);
176 return ret;
177}
178
179static int mt8173_max98090_dev_remove(struct platform_device *pdev)
180{
181 struct snd_soc_card *card = platform_get_drvdata(pdev);
182
183 snd_soc_unregister_card(card);
184 return 0;
185}
186
187static const struct of_device_id mt8173_max98090_dt_match[] = {
188 { .compatible = "mediatek,mt8173-max98090", },
189 { }
190};
191MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match);
192
193static struct platform_driver mt8173_max98090_driver = {
194 .driver = {
195 .name = "mt8173-max98090",
196 .owner = THIS_MODULE,
197 .of_match_table = mt8173_max98090_dt_match,
198#ifdef CONFIG_PM
199 .pm = &snd_soc_pm_ops,
200#endif
201 },
202 .probe = mt8173_max98090_dev_probe,
203 .remove = mt8173_max98090_dev_remove,
204};
205
206module_platform_driver(mt8173_max98090_driver);
207
208/* Module information */
209MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver");
210MODULE_AUTHOR("Koro Chen <koro.chen@mediatek.com>");
211MODULE_LICENSE("GPL v2");
212MODULE_ALIAS("platform:mt8173-max98090");
213
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-09 12:42:03 -0500