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
15static const char * const dmics[] = {
16	"rt715",
17	"rt712-sdca-dmic",
18};
19
20int rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd)
21{
22	struct snd_soc_card *card = rtd->card;
23	struct snd_soc_component *component;
24	struct snd_soc_dai *codec_dai;
25	char *mic_name;
26
27	codec_dai = get_codec_dai_by_name(rtd, dmics, ARRAY_SIZE(dmics));
28	if (!codec_dai)
29		return -EINVAL;
30
31	component = codec_dai->component;
32
33	/*
34	 * rt715-sdca (aka rt714) is a special case that uses different name in card->components
35	 * and component->name_prefix.
36	 */
37	if (!strcmp(component->name_prefix, "rt714"))
38		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");
39	else
40		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix);
41
42	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
43					  "%s mic:%s", card->components,
44					  mic_name);
45	if (!card->components)
46		return -ENOMEM;
47
48	dev_dbg(card->dev, "card->components: %s\n", card->components);
49
50	return 0;
51}
52MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);