1 // SPDX-License-Identifier: GPL-2.0-only
2 // This file incorporates work covered by the following copyright notice:
3 // Copyright (c) 2023 Intel Corporation
4 // Copyright (c) 2024 Advanced Micro Devices, Inc.
5
6 /*
7 * soc_sdw_cs_amp - Helpers to handle CS35L56 from generic machine driver
8 */
9
10 #include <linux/device.h>
11 #include <linux/errno.h>
12 #include <sound/soc.h>
13 #include <sound/soc-acpi.h>
14 #include <sound/soc-dai.h>
15 #include <sound/soc_sdw_utils.h>
16
17 #define CODEC_NAME_SIZE 8
18
19 int asoc_sdw_cs_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)
20 {
21 const char *dai_name = rtd->dai_link->codecs->dai_name;
22 struct snd_soc_card *card = rtd->card;
23 char codec_name[CODEC_NAME_SIZE];
24 char widget_name[16];
25 struct snd_soc_dapm_route route = { "Speaker", NULL, widget_name };
26 struct snd_soc_dai *codec_dai;
27 int i, ret;
28
29 snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
30 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
31 "%s spk:%s",
32 card->components, codec_name);
33 if (!card->components)
34 return -ENOMEM;
35
36 for_each_rtd_codec_dais(rtd, i, codec_dai) {
37 if (!strstr(codec_dai->name, "cs35l56"))
38 continue;
39
40 snprintf(widget_name, sizeof(widget_name), "%s SPK",
41 codec_dai->component->name_prefix);
42 ret = snd_soc_dapm_add_routes(&card->dapm, &route, 1);
43 if (ret)
44 return ret;
45 }
46
47 return 0;
48 }
49 EXPORT_SYMBOL_NS(asoc_sdw_cs_spk_rtd_init, SND_SOC_SDW_UTILS);
50
51 int asoc_sdw_cs_amp_init(struct snd_soc_card *card,
52 struct snd_soc_dai_link *dai_links,
53 struct asoc_sdw_codec_info *info,
54 bool playback)
55 {
56 /* Do init on playback link only. */
57 if (!playback)
58 return 0;
59
60 info->amp_num++;
61
62 return 0;
63 }
64 EXPORT_SYMBOL_NS(asoc_sdw_cs_amp_init, SND_SOC_SDW_UTILS);
65
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