1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * ad73311.c -- ALSA Soc AD73311 codec support
4 *
5 * Copyright: Analog Devices Inc.
6 * Author: Cliff Cai <cliff.cai@analog.com>
7 */
8
9#include <linux/init.h>
10#include <linux/slab.h>
11#include <linux/module.h>
12#include <linux/kernel.h>
13#include <linux/device.h>
14#include <sound/core.h>
15#include <sound/pcm.h>
16#include <sound/ac97_codec.h>
17#include <sound/initval.h>
18#include <sound/soc.h>
19
20#include "ad73311.h"
21
22static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
23SND_SOC_DAPM_INPUT("VINP"),
24SND_SOC_DAPM_INPUT("VINN"),
25SND_SOC_DAPM_OUTPUT("VOUTN"),
26SND_SOC_DAPM_OUTPUT("VOUTP"),
27};
28
29static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
30 { "Capture", NULL, "VINP" },
31 { "Capture", NULL, "VINN" },
32
33 { "VOUTN", NULL, "Playback" },
34 { "VOUTP", NULL, "Playback" },
35};
36
37static struct snd_soc_dai_driver ad73311_dai = {
38 .name = "ad73311-hifi",
39 .playback = {
40 .stream_name = "Playback",
41 .channels_min = 1,
42 .channels_max = 1,
43 .rates = SNDRV_PCM_RATE_8000,
44 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
45 .capture = {
46 .stream_name = "Capture",
47 .channels_min = 1,
48 .channels_max = 1,
49 .rates = SNDRV_PCM_RATE_8000,
50 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
51};
52
53static const struct snd_soc_component_driver soc_component_dev_ad73311 = {
54 .dapm_widgets = ad73311_dapm_widgets,
55 .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets),
56 .dapm_routes = ad73311_dapm_routes,
57 .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes),
58 .idle_bias_on = 1,
59 .use_pmdown_time = 1,
60 .endianness = 1,
61};
62
63static int ad73311_probe(struct platform_device *pdev)
64{
65 return devm_snd_soc_register_component(dev: &pdev->dev,
66 component_driver: &soc_component_dev_ad73311, dai_drv: &ad73311_dai, num_dai: 1);
67}
68
69static struct platform_driver ad73311_codec_driver = {
70 .driver = {
71 .name = "ad73311",
72 },
73
74 .probe = ad73311_probe,
75};
76
77module_platform_driver(ad73311_codec_driver);
78
79MODULE_DESCRIPTION("ASoC ad73311 driver");
80MODULE_AUTHOR("Cliff Cai ");
81MODULE_LICENSE("GPL");
82

source code of linux/sound/soc/codecs/ad73311.c