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
22 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
23 SND_SOC_DAPM_INPUT("VINP"),
24 SND_SOC_DAPM_INPUT("VINN"),
25 SND_SOC_DAPM_OUTPUT("VOUTN"),
26 SND_SOC_DAPM_OUTPUT("VOUTP"),
27 };
28
29 static 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
37 static 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
53 static 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
ad73311_probe(struct platform_device * pdev)63 static int ad73311_probe(struct platform_device *pdev)
64 {
65 return devm_snd_soc_register_component(&pdev->dev,
66 &soc_component_dev_ad73311, &ad73311_dai, 1);
67 }
68
69 static struct platform_driver ad73311_codec_driver = {
70 .driver = {
71 .name = "ad73311",
72 },
73
74 .probe = ad73311_probe,
75 };
76
77 module_platform_driver(ad73311_codec_driver);
78
79 MODULE_DESCRIPTION("ASoC ad73311 driver");
80 MODULE_AUTHOR("Cliff Cai ");
81 MODULE_LICENSE("GPL");
82