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1// SPDX-License-Identifier: GPL-2.0-only2// This file incorporates work covered by the following copyright notice:3// Copyright (c) 2020 Intel Corporation4// Copyright (c) 2024 Advanced Micro Devices, Inc.5//6// soc_sdw_maxim - Helpers to handle maxim codecs7// codec devices from generic machine driver8 9#include <linux/device.h>10#include <linux/errno.h>11#include <sound/control.h>12#include <sound/soc.h>13#include <sound/soc-acpi.h>14#include <sound/soc-dapm.h>15#include <sound/soc_sdw_utils.h>16 17static int maxim_part_id;18#define SOC_SDW_PART_ID_MAX98363 0x836319#define SOC_SDW_PART_ID_MAX98373 0x837320 21static const struct snd_soc_dapm_route max_98373_dapm_routes[] = {22 { "Left Spk", NULL, "Left BE_OUT" },23 { "Right Spk", NULL, "Right BE_OUT" },24};25 26int asoc_sdw_maxim_spk_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai)27{28 struct snd_soc_card *card = rtd->card;29 int ret;30 31 card->components = devm_kasprintf(card->dev, GFP_KERNEL,32 "%s spk:mx%04x",33 card->components, maxim_part_id);34 if (!card->components)35 return -ENOMEM;36 37 dev_dbg(card->dev, "soundwire maxim card components assigned : %s\n",38 card->components);39 40 ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes, 2);41 if (ret)42 dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);43 44 return ret;45}46EXPORT_SYMBOL_NS(asoc_sdw_maxim_spk_rtd_init, SND_SOC_SDW_UTILS);47 48static int asoc_sdw_mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable)49{50 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);51 struct snd_soc_dai *codec_dai;52 struct snd_soc_dai *cpu_dai;53 int ret;54 int j;55 56 /* set spk pin by playback only */57 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)58 return 0;59 60 cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);61 for_each_rtd_codec_dais(rtd, j, codec_dai) {62 struct snd_soc_dapm_context *dapm =63 snd_soc_component_get_dapm(cpu_dai->component);64 char pin_name[16];65 66 snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk",67 codec_dai->component->name_prefix);68 69 if (enable)70 ret = snd_soc_dapm_enable_pin(dapm, pin_name);71 else72 ret = snd_soc_dapm_disable_pin(dapm, pin_name);73 74 if (!ret)75 snd_soc_dapm_sync(dapm);76 }77 78 return 0;79}80 81static int asoc_sdw_mx8373_prepare(struct snd_pcm_substream *substream)82{83 int ret;84 85 /* according to soc_pcm_prepare dai link prepare is called first */86 ret = asoc_sdw_prepare(substream);87 if (ret < 0)88 return ret;89 90 return asoc_sdw_mx8373_enable_spk_pin(substream, true);91}92 93static int asoc_sdw_mx8373_hw_free(struct snd_pcm_substream *substream)94{95 int ret;96 97 /* according to soc_pcm_hw_free dai link free is called first */98 ret = asoc_sdw_hw_free(substream);99 if (ret < 0)100 return ret;101 102 return asoc_sdw_mx8373_enable_spk_pin(substream, false);103}104 105static const struct snd_soc_ops max_98373_sdw_ops = {106 .startup = asoc_sdw_startup,107 .prepare = asoc_sdw_mx8373_prepare,108 .trigger = asoc_sdw_trigger,109 .hw_params = asoc_sdw_hw_params,110 .hw_free = asoc_sdw_mx8373_hw_free,111 .shutdown = asoc_sdw_shutdown,112};113 114static int asoc_sdw_mx8373_sdw_late_probe(struct snd_soc_card *card)115{116 struct snd_soc_dapm_context *dapm = &card->dapm;117 118 /* Disable Left and Right Spk pin after boot */119 snd_soc_dapm_disable_pin(dapm, "Left Spk");120 snd_soc_dapm_disable_pin(dapm, "Right Spk");121 return snd_soc_dapm_sync(dapm);122}123 124int asoc_sdw_maxim_init(struct snd_soc_card *card,125 struct snd_soc_dai_link *dai_links,126 struct asoc_sdw_codec_info *info,127 bool playback)128{129 info->amp_num++;130 131 maxim_part_id = info->part_id;132 switch (maxim_part_id) {133 case SOC_SDW_PART_ID_MAX98363:134 /* Default ops are set in function init_dai_link.135 * called as part of function create_sdw_dailink136 */137 break;138 case SOC_SDW_PART_ID_MAX98373:139 info->codec_card_late_probe = asoc_sdw_mx8373_sdw_late_probe;140 dai_links->ops = &max_98373_sdw_ops;141 break;142 default:143 dev_err(card->dev, "Invalid maxim_part_id %#x\n", maxim_part_id);144 return -EINVAL;145 }146 return 0;147}148EXPORT_SYMBOL_NS(asoc_sdw_maxim_init, SND_SOC_SDW_UTILS);149