1 // SPDX-License-Identifier: GPL-2.0-only
2 // This file incorporates work covered by the following copyright notice:
3 // Copyright (c) 2020 Intel Corporation
4 // Copyright (c) 2024 Advanced Micro Devices, Inc.
5
6 /*
7 * soc_sdw_dmic - Helpers to handle dmic from generic machine driver
8 */
9
10 #include <sound/soc.h>
11 #include <sound/soc-acpi.h>
12 #include <sound/soc-dapm.h>
13 #include <sound/soc_sdw_utils.h>
14
15 static const struct snd_soc_dapm_widget dmic_widgets[] = {
16 SND_SOC_DAPM_MIC("SoC DMIC", NULL),
17 };
18
19 static const struct snd_soc_dapm_route dmic_map[] = {
20 /* digital mics */
21 {"DMic", NULL, "SoC DMIC"},
22 };
23
24 int asoc_sdw_dmic_init(struct snd_soc_pcm_runtime *rtd)
25 {
26 struct snd_soc_card *card = rtd->card;
27 int ret;
28
29 ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
30 ARRAY_SIZE(dmic_widgets));
31 if (ret) {
32 dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
33 /* Don't need to add routes if widget addition failed */
34 return ret;
35 }
36
37 ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
38 ARRAY_SIZE(dmic_map));
39
40 if (ret)
41 dev_err(card->dev, "DMic map addition failed: %d\n", ret);
42
43 return ret;
44 }
45 EXPORT_SYMBOL_NS(asoc_sdw_dmic_init, SND_SOC_SDW_UTILS);
46
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.