1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2024 Intel Corporation
3
4 /*
5 * sof_sdw_rt_dmic - Helpers to handle Realtek SDW DMIC from generic machine driver
6 */
7
8 #include <linux/device.h>
9 #include <linux/errno.h>
10 #include <sound/soc.h>
11 #include <sound/soc-acpi.h>
12 #include "sof_board_helpers.h"
13 #include "sof_sdw_common.h"
14
15 int rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
16 {
17 struct snd_soc_card *card = rtd->card;
18 struct snd_soc_component *component;
19 char *mic_name;
20
21 component = dai->component;
22
23 /*
24 * rt715-sdca (aka rt714) is a special case that uses different name in card->components
25 * and component->name_prefix.
26 */
27 if (!strcmp(component->name_prefix, "rt714"))
28 mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");
29 else
30 mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix);
31
32 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
33 "%s mic:%s", card->components,
34 mic_name);
35 if (!card->components)
36 return -ENOMEM;
37
38 dev_dbg(card->dev, "card->components: %s\n", card->components);
39
40 return 0;
41 }
42 MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
43
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