1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* ADAU7002 Stereo PDM-to-I2S/TDM converter driver
*
* Copyright 2014-2016 Analog Devices
* Author: Lars-Peter Clausen <lars@metafoo.de>
*
* Licensed under the GPL-2.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/soc.h>
static const struct snd_soc_dapm_widget adau7002_widgets[] = {
SND_SOC_DAPM_INPUT("PDM_DAT"),
SND_SOC_DAPM_REGULATOR_SUPPLY("IOVDD", 0, 0),
};
static const struct snd_soc_dapm_route adau7002_routes[] = {
{ "Capture", NULL, "PDM_DAT" },
{ "Capture", NULL, "IOVDD" },
};
static struct snd_soc_dai_driver adau7002_dai = {
.name = "adau7002-hifi",
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_96000,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE |
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE,
.sig_bits = 20,
},
};
static const struct snd_soc_codec_driver adau7002_codec_driver = {
.dapm_widgets = adau7002_widgets,
.num_dapm_widgets = ARRAY_SIZE(adau7002_widgets),
.dapm_routes = adau7002_routes,
.num_dapm_routes = ARRAY_SIZE(adau7002_routes),
};
static int adau7002_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev, &adau7002_codec_driver,
&adau7002_dai, 1);
}
static int adau7002_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id adau7002_dt_ids[] = {
{ .compatible = "adi,adau7002", },
{ }
};
MODULE_DEVICE_TABLE(of, adau7002_dt_ids);
#endif
static struct platform_driver adau7002_driver = {
.driver = {
.name = "adau7002",
.of_match_table = of_match_ptr(adau7002_dt_ids),
},
.probe = adau7002_probe,
.remove = adau7002_remove,
};
module_platform_driver(adau7002_driver);
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ADAU7002 Stereo PDM-to-I2S/TDM Converter driver");
MODULE_LICENSE("GPL v2");
|
