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	"rt715-sdca",
18	"rt712-sdca-dmic",
19	"rt722-sdca",
20};
21
22int rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
23{
24	struct snd_soc_card *card = rtd->card;
25	struct snd_soc_component *component;
26	struct snd_soc_dai *codec_dai;
27	char *mic_name;
28
29	codec_dai = get_codec_dai_by_name(rtd, dmics, ARRAY_SIZE(dmics));
30	if (!codec_dai)
31		return -EINVAL;
32
33	component = codec_dai->component;
34
35	/*
36	 * rt715-sdca (aka rt714) is a special case that uses different name in card->components
37	 * and component->name_prefix.
38	 */
39	if (!strcmp(component->name_prefix, "rt714"))
40		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");
41	else
42		mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix);
43
44	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
45					  "%s mic:%s", card->components,
46					  mic_name);
47	if (!card->components)
48		return -ENOMEM;
49
50	dev_dbg(card->dev, "card->components: %s\n", card->components);
51
52	return 0;
53}
54MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_BOARD_HELPERS);
55