13a280ed1SRyder Lee // SPDX-License-Identifier: GPL-2.0 2283b6124SGarlic Tseng /* 3283b6124SGarlic Tseng * mtk-afe-fe-dais.c -- Mediatek afe fe dai operator 4283b6124SGarlic Tseng * 5283b6124SGarlic Tseng * Copyright (c) 2016 MediaTek Inc. 6283b6124SGarlic Tseng * Author: Garlic Tseng <garlic.tseng@mediatek.com> 7283b6124SGarlic Tseng */ 8283b6124SGarlic Tseng 9283b6124SGarlic Tseng #include <linux/module.h> 10283b6124SGarlic Tseng #include <linux/pm_runtime.h> 11283b6124SGarlic Tseng #include <linux/regmap.h> 12283b6124SGarlic Tseng #include <sound/soc.h> 13f1b5bf07SKuninori Morimoto #include "mtk-afe-platform-driver.h" 14283b6124SGarlic Tseng #include "mtk-afe-fe-dai.h" 15283b6124SGarlic Tseng #include "mtk-base-afe.h" 16283b6124SGarlic Tseng 17283b6124SGarlic Tseng #define AFE_BASE_END_OFFSET 8 18283b6124SGarlic Tseng 1922e76614SBaoyou Xie static int mtk_regmap_update_bits(struct regmap *map, int reg, 2022e76614SBaoyou Xie unsigned int mask, 21c6839641SPi-Hsun Shih unsigned int val, int shift) 22283b6124SGarlic Tseng { 23c6839641SPi-Hsun Shih if (reg < 0 || WARN_ON_ONCE(shift < 0)) 24283b6124SGarlic Tseng return 0; 25c6839641SPi-Hsun Shih return regmap_update_bits(map, reg, mask << shift, val << shift); 26283b6124SGarlic Tseng } 27283b6124SGarlic Tseng 2822e76614SBaoyou Xie static int mtk_regmap_write(struct regmap *map, int reg, unsigned int val) 29283b6124SGarlic Tseng { 30283b6124SGarlic Tseng if (reg < 0) 31283b6124SGarlic Tseng return 0; 32283b6124SGarlic Tseng return regmap_write(map, reg, val); 33283b6124SGarlic Tseng } 34283b6124SGarlic Tseng 35283b6124SGarlic Tseng int mtk_afe_fe_startup(struct snd_pcm_substream *substream, 36283b6124SGarlic Tseng struct snd_soc_dai *dai) 37283b6124SGarlic Tseng { 38283b6124SGarlic Tseng struct snd_soc_pcm_runtime *rtd = substream->private_data; 39e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 40283b6124SGarlic Tseng struct snd_pcm_runtime *runtime = substream->runtime; 41283b6124SGarlic Tseng int memif_num = rtd->cpu_dai->id; 42283b6124SGarlic Tseng struct mtk_base_afe_memif *memif = &afe->memif[memif_num]; 43283b6124SGarlic Tseng const struct snd_pcm_hardware *mtk_afe_hardware = afe->mtk_afe_hardware; 44283b6124SGarlic Tseng int ret; 45283b6124SGarlic Tseng 46283b6124SGarlic Tseng memif->substream = substream; 47283b6124SGarlic Tseng 48283b6124SGarlic Tseng snd_pcm_hw_constraint_step(substream->runtime, 0, 49283b6124SGarlic Tseng SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16); 50283b6124SGarlic Tseng /* enable agent */ 51283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->agent_disable_reg, 52c6839641SPi-Hsun Shih 1, 0, memif->data->agent_disable_shift); 53283b6124SGarlic Tseng 54283b6124SGarlic Tseng snd_soc_set_runtime_hwparams(substream, mtk_afe_hardware); 55283b6124SGarlic Tseng 56283b6124SGarlic Tseng /* 57283b6124SGarlic Tseng * Capture cannot use ping-pong buffer since hw_ptr at IRQ may be 58283b6124SGarlic Tseng * smaller than period_size due to AFE's internal buffer. 59283b6124SGarlic Tseng * This easily leads to overrun when avail_min is period_size. 60283b6124SGarlic Tseng * One more period can hold the possible unread buffer. 61283b6124SGarlic Tseng */ 62283b6124SGarlic Tseng if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { 63283b6124SGarlic Tseng int periods_max = mtk_afe_hardware->periods_max; 64283b6124SGarlic Tseng 65283b6124SGarlic Tseng ret = snd_pcm_hw_constraint_minmax(runtime, 66283b6124SGarlic Tseng SNDRV_PCM_HW_PARAM_PERIODS, 67283b6124SGarlic Tseng 3, periods_max); 68283b6124SGarlic Tseng if (ret < 0) { 69283b6124SGarlic Tseng dev_err(afe->dev, "hw_constraint_minmax failed\n"); 70283b6124SGarlic Tseng return ret; 71283b6124SGarlic Tseng } 72283b6124SGarlic Tseng } 73283b6124SGarlic Tseng 74283b6124SGarlic Tseng ret = snd_pcm_hw_constraint_integer(runtime, 75283b6124SGarlic Tseng SNDRV_PCM_HW_PARAM_PERIODS); 76283b6124SGarlic Tseng if (ret < 0) 77283b6124SGarlic Tseng dev_err(afe->dev, "snd_pcm_hw_constraint_integer failed\n"); 78283b6124SGarlic Tseng 79283b6124SGarlic Tseng /* dynamic allocate irq to memif */ 80283b6124SGarlic Tseng if (memif->irq_usage < 0) { 81283b6124SGarlic Tseng int irq_id = mtk_dynamic_irq_acquire(afe); 82283b6124SGarlic Tseng 83283b6124SGarlic Tseng if (irq_id != afe->irqs_size) { 84283b6124SGarlic Tseng /* link */ 85283b6124SGarlic Tseng memif->irq_usage = irq_id; 86283b6124SGarlic Tseng } else { 87283b6124SGarlic Tseng dev_err(afe->dev, "%s() error: no more asys irq\n", 88283b6124SGarlic Tseng __func__); 89283b6124SGarlic Tseng ret = -EBUSY; 90283b6124SGarlic Tseng } 91283b6124SGarlic Tseng } 92283b6124SGarlic Tseng return ret; 93283b6124SGarlic Tseng } 94283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_startup); 95283b6124SGarlic Tseng 96283b6124SGarlic Tseng void mtk_afe_fe_shutdown(struct snd_pcm_substream *substream, 97283b6124SGarlic Tseng struct snd_soc_dai *dai) 98283b6124SGarlic Tseng { 99283b6124SGarlic Tseng struct snd_soc_pcm_runtime *rtd = substream->private_data; 100e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 101283b6124SGarlic Tseng struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; 102283b6124SGarlic Tseng int irq_id; 103283b6124SGarlic Tseng 104283b6124SGarlic Tseng irq_id = memif->irq_usage; 105283b6124SGarlic Tseng 106283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->agent_disable_reg, 107c6839641SPi-Hsun Shih 1, 1, memif->data->agent_disable_shift); 108283b6124SGarlic Tseng 109283b6124SGarlic Tseng if (!memif->const_irq) { 110283b6124SGarlic Tseng mtk_dynamic_irq_release(afe, irq_id); 111283b6124SGarlic Tseng memif->irq_usage = -1; 112283b6124SGarlic Tseng memif->substream = NULL; 113283b6124SGarlic Tseng } 114283b6124SGarlic Tseng } 115283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_shutdown); 116283b6124SGarlic Tseng 117283b6124SGarlic Tseng int mtk_afe_fe_hw_params(struct snd_pcm_substream *substream, 118283b6124SGarlic Tseng struct snd_pcm_hw_params *params, 119283b6124SGarlic Tseng struct snd_soc_dai *dai) 120283b6124SGarlic Tseng { 121283b6124SGarlic Tseng struct snd_soc_pcm_runtime *rtd = substream->private_data; 122e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 123283b6124SGarlic Tseng struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; 124283b6124SGarlic Tseng int msb_at_bit33 = 0; 125283b6124SGarlic Tseng int ret, fs = 0; 126283b6124SGarlic Tseng 127283b6124SGarlic Tseng ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); 128283b6124SGarlic Tseng if (ret < 0) 129283b6124SGarlic Tseng return ret; 130283b6124SGarlic Tseng 131283b6124SGarlic Tseng msb_at_bit33 = upper_32_bits(substream->runtime->dma_addr) ? 1 : 0; 132283b6124SGarlic Tseng memif->phys_buf_addr = lower_32_bits(substream->runtime->dma_addr); 133283b6124SGarlic Tseng memif->buffer_size = substream->runtime->dma_bytes; 134283b6124SGarlic Tseng 135283b6124SGarlic Tseng /* start */ 136283b6124SGarlic Tseng mtk_regmap_write(afe->regmap, memif->data->reg_ofs_base, 137283b6124SGarlic Tseng memif->phys_buf_addr); 138283b6124SGarlic Tseng /* end */ 139283b6124SGarlic Tseng mtk_regmap_write(afe->regmap, 140283b6124SGarlic Tseng memif->data->reg_ofs_base + AFE_BASE_END_OFFSET, 141283b6124SGarlic Tseng memif->phys_buf_addr + memif->buffer_size - 1); 142283b6124SGarlic Tseng 143283b6124SGarlic Tseng /* set MSB to 33-bit */ 144283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->msb_reg, 145c6839641SPi-Hsun Shih 1, msb_at_bit33, memif->data->msb_shift); 146283b6124SGarlic Tseng 147283b6124SGarlic Tseng /* set channel */ 148283b6124SGarlic Tseng if (memif->data->mono_shift >= 0) { 149283b6124SGarlic Tseng unsigned int mono = (params_channels(params) == 1) ? 1 : 0; 150283b6124SGarlic Tseng 151283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->mono_reg, 152c6839641SPi-Hsun Shih 1, mono, memif->data->mono_shift); 153283b6124SGarlic Tseng } 154283b6124SGarlic Tseng 155283b6124SGarlic Tseng /* set rate */ 156283b6124SGarlic Tseng if (memif->data->fs_shift < 0) 157283b6124SGarlic Tseng return 0; 158283b6124SGarlic Tseng 159283b6124SGarlic Tseng fs = afe->memif_fs(substream, params_rate(params)); 160283b6124SGarlic Tseng 161283b6124SGarlic Tseng if (fs < 0) 162283b6124SGarlic Tseng return -EINVAL; 163283b6124SGarlic Tseng 164283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->fs_reg, 165c6839641SPi-Hsun Shih memif->data->fs_maskbit, fs, 166c6839641SPi-Hsun Shih memif->data->fs_shift); 167283b6124SGarlic Tseng 168283b6124SGarlic Tseng return 0; 169283b6124SGarlic Tseng } 170283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_hw_params); 171283b6124SGarlic Tseng 172283b6124SGarlic Tseng int mtk_afe_fe_hw_free(struct snd_pcm_substream *substream, 173283b6124SGarlic Tseng struct snd_soc_dai *dai) 174283b6124SGarlic Tseng { 175283b6124SGarlic Tseng return snd_pcm_lib_free_pages(substream); 176283b6124SGarlic Tseng } 177283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_hw_free); 178283b6124SGarlic Tseng 179283b6124SGarlic Tseng int mtk_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd, 180283b6124SGarlic Tseng struct snd_soc_dai *dai) 181283b6124SGarlic Tseng { 182283b6124SGarlic Tseng struct snd_soc_pcm_runtime *rtd = substream->private_data; 183283b6124SGarlic Tseng struct snd_pcm_runtime * const runtime = substream->runtime; 184e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 185283b6124SGarlic Tseng struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; 186283b6124SGarlic Tseng struct mtk_base_afe_irq *irqs = &afe->irqs[memif->irq_usage]; 187283b6124SGarlic Tseng const struct mtk_base_irq_data *irq_data = irqs->irq_data; 188283b6124SGarlic Tseng unsigned int counter = runtime->period_size; 189283b6124SGarlic Tseng int fs; 190283b6124SGarlic Tseng 191283b6124SGarlic Tseng dev_dbg(afe->dev, "%s %s cmd=%d\n", __func__, memif->data->name, cmd); 192283b6124SGarlic Tseng 193283b6124SGarlic Tseng switch (cmd) { 194283b6124SGarlic Tseng case SNDRV_PCM_TRIGGER_START: 195283b6124SGarlic Tseng case SNDRV_PCM_TRIGGER_RESUME: 196283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, 197283b6124SGarlic Tseng memif->data->enable_reg, 198c6839641SPi-Hsun Shih 1, 1, memif->data->enable_shift); 199283b6124SGarlic Tseng 200283b6124SGarlic Tseng /* set irq counter */ 201283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg, 202c6839641SPi-Hsun Shih irq_data->irq_cnt_maskbit, counter, 203c6839641SPi-Hsun Shih irq_data->irq_cnt_shift); 204283b6124SGarlic Tseng 205283b6124SGarlic Tseng /* set irq fs */ 206283b6124SGarlic Tseng fs = afe->irq_fs(substream, runtime->rate); 207283b6124SGarlic Tseng 208283b6124SGarlic Tseng if (fs < 0) 209283b6124SGarlic Tseng return -EINVAL; 210283b6124SGarlic Tseng 211283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, irq_data->irq_fs_reg, 212c6839641SPi-Hsun Shih irq_data->irq_fs_maskbit, fs, 213c6839641SPi-Hsun Shih irq_data->irq_fs_shift); 214283b6124SGarlic Tseng 215283b6124SGarlic Tseng /* enable interrupt */ 216283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, irq_data->irq_en_reg, 217c6839641SPi-Hsun Shih 1, 1, irq_data->irq_en_shift); 218283b6124SGarlic Tseng 219283b6124SGarlic Tseng return 0; 220283b6124SGarlic Tseng case SNDRV_PCM_TRIGGER_STOP: 221283b6124SGarlic Tseng case SNDRV_PCM_TRIGGER_SUSPEND: 222283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->enable_reg, 223c6839641SPi-Hsun Shih 1, 0, memif->data->enable_shift); 224283b6124SGarlic Tseng /* disable interrupt */ 225283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, irq_data->irq_en_reg, 226c6839641SPi-Hsun Shih 1, 0, irq_data->irq_en_shift); 227283b6124SGarlic Tseng /* and clear pending IRQ */ 228283b6124SGarlic Tseng mtk_regmap_write(afe->regmap, irq_data->irq_clr_reg, 229283b6124SGarlic Tseng 1 << irq_data->irq_clr_shift); 230283b6124SGarlic Tseng return 0; 231283b6124SGarlic Tseng default: 232283b6124SGarlic Tseng return -EINVAL; 233283b6124SGarlic Tseng } 234283b6124SGarlic Tseng } 235283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_trigger); 236283b6124SGarlic Tseng 237283b6124SGarlic Tseng int mtk_afe_fe_prepare(struct snd_pcm_substream *substream, 238283b6124SGarlic Tseng struct snd_soc_dai *dai) 239283b6124SGarlic Tseng { 240283b6124SGarlic Tseng struct snd_soc_pcm_runtime *rtd = substream->private_data; 241e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 242283b6124SGarlic Tseng struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id]; 243283b6124SGarlic Tseng int hd_audio = 0; 244283b6124SGarlic Tseng 245283b6124SGarlic Tseng /* set hd mode */ 246283b6124SGarlic Tseng switch (substream->runtime->format) { 247283b6124SGarlic Tseng case SNDRV_PCM_FORMAT_S16_LE: 248283b6124SGarlic Tseng hd_audio = 0; 249283b6124SGarlic Tseng break; 250283b6124SGarlic Tseng case SNDRV_PCM_FORMAT_S32_LE: 251283b6124SGarlic Tseng hd_audio = 1; 252283b6124SGarlic Tseng break; 253283b6124SGarlic Tseng case SNDRV_PCM_FORMAT_S24_LE: 254283b6124SGarlic Tseng hd_audio = 1; 255283b6124SGarlic Tseng break; 256283b6124SGarlic Tseng default: 257283b6124SGarlic Tseng dev_err(afe->dev, "%s() error: unsupported format %d\n", 258283b6124SGarlic Tseng __func__, substream->runtime->format); 259283b6124SGarlic Tseng break; 260283b6124SGarlic Tseng } 261283b6124SGarlic Tseng 262283b6124SGarlic Tseng mtk_regmap_update_bits(afe->regmap, memif->data->hd_reg, 263c6839641SPi-Hsun Shih 1, hd_audio, memif->data->hd_shift); 264283b6124SGarlic Tseng 265283b6124SGarlic Tseng return 0; 266283b6124SGarlic Tseng } 267283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_prepare); 268283b6124SGarlic Tseng 269283b6124SGarlic Tseng const struct snd_soc_dai_ops mtk_afe_fe_ops = { 270283b6124SGarlic Tseng .startup = mtk_afe_fe_startup, 271283b6124SGarlic Tseng .shutdown = mtk_afe_fe_shutdown, 272283b6124SGarlic Tseng .hw_params = mtk_afe_fe_hw_params, 273283b6124SGarlic Tseng .hw_free = mtk_afe_fe_hw_free, 274283b6124SGarlic Tseng .prepare = mtk_afe_fe_prepare, 275283b6124SGarlic Tseng .trigger = mtk_afe_fe_trigger, 276283b6124SGarlic Tseng }; 277283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_fe_ops); 278283b6124SGarlic Tseng 279283b6124SGarlic Tseng static DEFINE_MUTEX(irqs_lock); 280283b6124SGarlic Tseng int mtk_dynamic_irq_acquire(struct mtk_base_afe *afe) 281283b6124SGarlic Tseng { 282283b6124SGarlic Tseng int i; 283283b6124SGarlic Tseng 284283b6124SGarlic Tseng mutex_lock(&afe->irq_alloc_lock); 285283b6124SGarlic Tseng for (i = 0; i < afe->irqs_size; ++i) { 286283b6124SGarlic Tseng if (afe->irqs[i].irq_occupyed == 0) { 287283b6124SGarlic Tseng afe->irqs[i].irq_occupyed = 1; 288283b6124SGarlic Tseng mutex_unlock(&afe->irq_alloc_lock); 289283b6124SGarlic Tseng return i; 290283b6124SGarlic Tseng } 291283b6124SGarlic Tseng } 292283b6124SGarlic Tseng mutex_unlock(&afe->irq_alloc_lock); 293283b6124SGarlic Tseng return afe->irqs_size; 294283b6124SGarlic Tseng } 295283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_dynamic_irq_acquire); 296283b6124SGarlic Tseng 297283b6124SGarlic Tseng int mtk_dynamic_irq_release(struct mtk_base_afe *afe, int irq_id) 298283b6124SGarlic Tseng { 299283b6124SGarlic Tseng mutex_lock(&afe->irq_alloc_lock); 300283b6124SGarlic Tseng if (irq_id >= 0 && irq_id < afe->irqs_size) { 301283b6124SGarlic Tseng afe->irqs[irq_id].irq_occupyed = 0; 302283b6124SGarlic Tseng mutex_unlock(&afe->irq_alloc_lock); 303283b6124SGarlic Tseng return 0; 304283b6124SGarlic Tseng } 305283b6124SGarlic Tseng mutex_unlock(&afe->irq_alloc_lock); 306283b6124SGarlic Tseng return -EINVAL; 307283b6124SGarlic Tseng } 308283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_dynamic_irq_release); 309283b6124SGarlic Tseng 310283b6124SGarlic Tseng int mtk_afe_dai_suspend(struct snd_soc_dai *dai) 311283b6124SGarlic Tseng { 312e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 313283b6124SGarlic Tseng struct device *dev = afe->dev; 314283b6124SGarlic Tseng struct regmap *regmap = afe->regmap; 315283b6124SGarlic Tseng int i; 316283b6124SGarlic Tseng 317283b6124SGarlic Tseng if (pm_runtime_status_suspended(dev) || afe->suspended) 318283b6124SGarlic Tseng return 0; 319283b6124SGarlic Tseng 320283b6124SGarlic Tseng if (!afe->reg_back_up) 321283b6124SGarlic Tseng afe->reg_back_up = 322283b6124SGarlic Tseng devm_kcalloc(dev, afe->reg_back_up_list_num, 323283b6124SGarlic Tseng sizeof(unsigned int), GFP_KERNEL); 324283b6124SGarlic Tseng 325283b6124SGarlic Tseng for (i = 0; i < afe->reg_back_up_list_num; i++) 326283b6124SGarlic Tseng regmap_read(regmap, afe->reg_back_up_list[i], 327283b6124SGarlic Tseng &afe->reg_back_up[i]); 328283b6124SGarlic Tseng 329283b6124SGarlic Tseng afe->suspended = true; 330283b6124SGarlic Tseng afe->runtime_suspend(dev); 331283b6124SGarlic Tseng return 0; 332283b6124SGarlic Tseng } 333283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_dai_suspend); 334283b6124SGarlic Tseng 335283b6124SGarlic Tseng int mtk_afe_dai_resume(struct snd_soc_dai *dai) 336283b6124SGarlic Tseng { 337e4b31b81SRyder Lee struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai); 338283b6124SGarlic Tseng struct device *dev = afe->dev; 339283b6124SGarlic Tseng struct regmap *regmap = afe->regmap; 340283b6124SGarlic Tseng int i = 0; 341283b6124SGarlic Tseng 342283b6124SGarlic Tseng if (pm_runtime_status_suspended(dev) || !afe->suspended) 343283b6124SGarlic Tseng return 0; 344283b6124SGarlic Tseng 345283b6124SGarlic Tseng afe->runtime_resume(dev); 346283b6124SGarlic Tseng 347283b6124SGarlic Tseng if (!afe->reg_back_up) 348283b6124SGarlic Tseng dev_dbg(dev, "%s no reg_backup\n", __func__); 349283b6124SGarlic Tseng 350283b6124SGarlic Tseng for (i = 0; i < afe->reg_back_up_list_num; i++) 351283b6124SGarlic Tseng mtk_regmap_write(regmap, afe->reg_back_up_list[i], 352283b6124SGarlic Tseng afe->reg_back_up[i]); 353283b6124SGarlic Tseng 354283b6124SGarlic Tseng afe->suspended = false; 355283b6124SGarlic Tseng return 0; 356283b6124SGarlic Tseng } 357283b6124SGarlic Tseng EXPORT_SYMBOL_GPL(mtk_afe_dai_resume); 358283b6124SGarlic Tseng 359283b6124SGarlic Tseng MODULE_DESCRIPTION("Mediatek simple fe dai operator"); 360283b6124SGarlic Tseng MODULE_AUTHOR("Garlic Tseng <garlic.tseng@mediatek.com>"); 361283b6124SGarlic Tseng MODULE_LICENSE("GPL v2"); 362