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