// SPDX-License-Identifier: GPL-2.0 // // TAS2781 HDA SPI driver // // Copyright 2024 - 2025 Texas Instruments, Inc. // // Author: Baojun Xu #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "hda_local.h" #include "hda_auto_parser.h" #include "hda_component.h" #include "hda_jack.h" #include "../generic.h" #include "tas2781_hda.h" #define TASDEVICE_RANGE_MAX_SIZE (256 * 128) #define TASDEVICE_WIN_LEN 128 #define TAS2781_SPI_MAX_FREQ (4 * HZ_PER_MHZ) /* Flag of calibration registers address. */ #define TASDEVICE_CALIBRATION_REG_ADDRESS BIT(7) #define TASDEV_UEFI_CALI_REG_ADDR_FLG BIT(7) /* System Reset Check Register */ #define TAS2781_REG_CLK_CONFIG TASDEVICE_REG(0x0, 0x0, 0x5c) #define TAS2781_REG_CLK_CONFIG_RESET 0x19 struct tas2781_hda_spi_priv { struct snd_kcontrol *snd_ctls[3]; }; static const struct regmap_range_cfg tasdevice_ranges[] = { { .range_min = 0, .range_max = TASDEVICE_RANGE_MAX_SIZE, .selector_reg = TASDEVICE_PAGE_SELECT, .selector_mask = GENMASK(7, 0), .selector_shift = 0, .window_start = 0, .window_len = TASDEVICE_WIN_LEN, }, }; static const struct regmap_config tasdevice_regmap = { .reg_bits = 8, .val_bits = 8, .zero_flag_mask = true, .read_flag_mask = 0x01, .reg_shift = -1, .cache_type = REGCACHE_NONE, .ranges = tasdevice_ranges, .num_ranges = ARRAY_SIZE(tasdevice_ranges), .max_register = TASDEVICE_RANGE_MAX_SIZE, }; static int tasdevice_spi_dev_read(struct tasdevice_priv *tas_priv, unsigned short chn, unsigned int reg, unsigned int *val) { int ret; /* * In our TAS2781 SPI mode, if read from other book (not book 0), * or read from page number larger than 1 in book 0, one more byte * read is needed, and first byte is a dummy byte, need to be ignored. */ if ((TASDEVICE_BOOK_ID(reg) > 0) || (TASDEVICE_PAGE_ID(reg) > 1)) { unsigned char data[2]; ret = tasdevice_dev_bulk_read(tas_priv, chn, reg, data, sizeof(data)); *val = data[1]; } else { ret = tasdevice_dev_read(tas_priv, chn, reg, val); } if (ret < 0) dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret); return ret; } static int tasdevice_spi_dev_bulk_read(struct tasdevice_priv *tas_priv, unsigned short chn, unsigned int reg, unsigned char *data, unsigned int len) { int ret; /* * In our TAS2781 SPI mode, if read from other book (not book 0), * or read from page number larger than 1 in book 0, one more byte * read is needed, and first byte is a dummy byte, need to be ignored. */ if ((TASDEVICE_BOOK_ID(reg) > 0) || (TASDEVICE_PAGE_ID(reg) > 1)) { unsigned char buf[TASDEVICE_WIN_LEN + 1]; ret = tasdevice_dev_bulk_read(tas_priv, chn, reg, buf, len + 1); memcpy(data, buf + 1, len); } else { ret = tasdevice_dev_bulk_read(tas_priv, chn, reg, data, len); } if (ret < 0) dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret); return ret; } static int tasdevice_spi_dev_update_bits(struct tasdevice_priv *tas_priv, unsigned short chn, unsigned int reg, unsigned int mask, unsigned int value) { int ret, val; /* * In our TAS2781 SPI mode, read/write was masked in last bit of * address, it cause regmap_update_bits() not work as expected. */ ret = tasdevice_dev_read(tas_priv, chn, reg, &val); if (ret < 0) { dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret); return ret; } ret = tasdevice_dev_write(tas_priv, chn, TASDEVICE_PAGE_REG(reg), (val & ~mask) | (mask & value)); if (ret < 0) dev_err(tas_priv->dev, "%s, E=%d\n", __func__, ret); return ret; } static int tasdevice_spi_change_chn_book(struct tasdevice_priv *p, unsigned short chn, int book) { int ret = 0; if (chn == p->index) { struct tasdevice *tasdev = &p->tasdevice[chn]; struct regmap *map = p->regmap; if (tasdev->cur_book != book) { ret = regmap_write(map, TASDEVICE_BOOKCTL_REG, book); if (ret < 0) dev_err(p->dev, "%s, E=%d\n", __func__, ret); else tasdev->cur_book = book; } } else { ret = -EXDEV; dev_dbg(p->dev, "Not error, %s ignore channel(%d)\n", __func__, chn); } return ret; } static void tas2781_spi_reset(struct tasdevice_priv *tas_dev) { int ret; if (tas_dev->reset) { gpiod_set_value_cansleep(tas_dev->reset, 0); fsleep(800); gpiod_set_value_cansleep(tas_dev->reset, 1); } else { ret = tasdevice_dev_write(tas_dev, tas_dev->index, TASDEVICE_REG_SWRESET, TASDEVICE_REG_SWRESET_RESET); if (ret < 0) { dev_err(tas_dev->dev, "dev sw-reset fail, %d\n", ret); return; } fsleep(1000); } } static int tascodec_spi_init(struct tasdevice_priv *tas_priv, void *codec, struct module *module, void (*cont)(const struct firmware *fw, void *context)) { int ret; /* * Codec Lock Hold to ensure that codec_probe and firmware parsing and * loading do not simultaneously execute. */ guard(mutex)(&tas_priv->codec_lock); scnprintf(tas_priv->rca_binaryname, sizeof(tas_priv->rca_binaryname), "%sRCA%d.bin", tas_priv->dev_name, tas_priv->ndev); crc8_populate_msb(tas_priv->crc8_lkp_tbl, TASDEVICE_CRC8_POLYNOMIAL); tas_priv->codec = codec; ret = request_firmware_nowait(module, FW_ACTION_UEVENT, tas_priv->rca_binaryname, tas_priv->dev, GFP_KERNEL, tas_priv, cont); if (ret) dev_err(tas_priv->dev, "request_firmware_nowait err:0x%08x\n", ret); return ret; } static void tasdevice_spi_init(struct tasdevice_priv *tas_priv) { tas_priv->tasdevice[tas_priv->index].cur_book = -1; tas_priv->tasdevice[tas_priv->index].cur_conf = -1; tas_priv->tasdevice[tas_priv->index].cur_prog = -1; tas_priv->isspi = true; tas_priv->update_bits = tasdevice_spi_dev_update_bits; tas_priv->change_chn_book = tasdevice_spi_change_chn_book; tas_priv->dev_read = tasdevice_spi_dev_read; tas_priv->dev_bulk_read = tasdevice_spi_dev_bulk_read; mutex_init(&tas_priv->codec_lock); } static int tasdevice_spi_amp_putvol(struct tasdevice_priv *tas_priv, struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc) { unsigned int invert = mc->invert; unsigned char mask; int max = mc->max; int val, ret; mask = rounddown_pow_of_two(max); mask <<= mc->shift; val = clamp(invert ? max - ucontrol->value.integer.value[0] : ucontrol->value.integer.value[0], 0, max); ret = tasdevice_spi_dev_update_bits(tas_priv, tas_priv->index, mc->reg, mask, (unsigned int)(val << mc->shift)); if (ret) dev_err(tas_priv->dev, "set AMP vol error in dev %d\n", tas_priv->index); return ret; } static int tasdevice_spi_amp_getvol(struct tasdevice_priv *tas_priv, struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc) { unsigned int invert = mc->invert; unsigned char mask = 0; int max = mc->max; int ret, val; ret = tasdevice_spi_dev_read(tas_priv, tas_priv->index, mc->reg, &val); if (ret) { dev_err(tas_priv->dev, "%s, get AMP vol error\n", __func__); return ret; } mask = rounddown_pow_of_two(max); mask <<= mc->shift; val = (val & mask) >> mc->shift; val = clamp(invert ? max - val : val, 0, max); ucontrol->value.integer.value[0] = val; return ret; } static int tasdevice_spi_digital_putvol(struct tasdevice_priv *p, struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc) { unsigned int invert = mc->invert; int max = mc->max; int val, ret; val = clamp(invert ? max - ucontrol->value.integer.value[0] : ucontrol->value.integer.value[0], 0, max); ret = tasdevice_dev_write(p, p->index, mc->reg, (unsigned int)val); if (ret) dev_err(p->dev, "set digital vol err in dev %d\n", p->index); return ret; } static int tasdevice_spi_digital_getvol(struct tasdevice_priv *p, struct snd_ctl_elem_value *ucontrol, struct soc_mixer_control *mc) { unsigned int invert = mc->invert; int max = mc->max; int ret, val; ret = tasdevice_spi_dev_read(p, p->index, mc->reg, &val); if (ret) { dev_err(p->dev, "%s, get digital vol err\n", __func__); return ret; } val = clamp(invert ? max - val : val, 0, max); ucontrol->value.integer.value[0] = val; return ret; } static int tas2781_read_acpi(struct tas2781_hda *tas_hda, const char *hid, int id) { struct tasdevice_priv *p = tas_hda->priv; struct acpi_device *adev; struct device *physdev; u32 values[HDA_MAX_COMPONENTS]; const char *property; size_t nval; int ret, i; adev = acpi_dev_get_first_match_dev(hid, NULL, -1); if (!adev) { dev_err(p->dev, "Failed to find ACPI device: %s\n", hid); return -ENODEV; } strscpy(p->dev_name, hid, sizeof(p->dev_name)); physdev = get_device(acpi_get_first_physical_node(adev)); acpi_dev_put(adev); property = "ti,dev-index"; ret = device_property_count_u32(physdev, property); if (ret <= 0 || ret > ARRAY_SIZE(values)) { ret = -EINVAL; goto err; } p->ndev = nval = ret; ret = device_property_read_u32_array(physdev, property, values, nval); if (ret) goto err; p->index = U8_MAX; for (i = 0; i < nval; i++) { if (values[i] == id) { p->index = i; break; } } if (p->index == U8_MAX) { dev_dbg(p->dev, "No index found in %s\n", property); ret = -ENODEV; goto err; } if (p->index == 0) { /* All of amps share same RESET pin. */ p->reset = devm_gpiod_get_index_optional(physdev, "reset", p->index, GPIOD_OUT_LOW); if (IS_ERR(p->reset)) { ret = PTR_ERR(p->reset); dev_err_probe(p->dev, ret, "Failed on reset GPIO\n"); goto err; } } put_device(physdev); return 0; err: dev_err(p->dev, "read acpi error, ret: %d\n", ret); put_device(physdev); acpi_dev_put(adev); return ret; } static void tas2781_hda_playback_hook(struct device *dev, int action) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct tasdevice_priv *tas_priv = tas_hda->priv; if (action == HDA_GEN_PCM_ACT_OPEN) { pm_runtime_get_sync(dev); guard(mutex)(&tas_priv->codec_lock); if (tas_priv->fw_state == TASDEVICE_DSP_FW_ALL_OK) tasdevice_tuning_switch(tas_hda->priv, 0); } else if (action == HDA_GEN_PCM_ACT_CLOSE) { guard(mutex)(&tas_priv->codec_lock); if (tas_priv->fw_state == TASDEVICE_DSP_FW_ALL_OK) tasdevice_tuning_switch(tas_priv, 1); pm_runtime_put_autosuspend(dev); } } /* * tas2781_digital_getvol - get the volum control * @kcontrol: control pointer * @ucontrol: User data * * Customer Kcontrol for tas2781 is primarily for regmap booking, paging * depends on internal regmap mechanism. * tas2781 contains book and page two-level register map, especially * book switching will set the register BXXP00R7F, after switching to the * correct book, then leverage the mechanism for paging to access the * register. * * Return 0 if succeeded. */ static int tas2781_digital_getvol(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; guard(mutex)(&tas_priv->codec_lock); return tasdevice_spi_digital_getvol(tas_priv, ucontrol, mc); } static int tas2781_amp_getvol(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; guard(mutex)(&tas_priv->codec_lock); return tasdevice_spi_amp_getvol(tas_priv, ucontrol, mc); } static int tas2781_digital_putvol(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; guard(mutex)(&tas_priv->codec_lock); return tasdevice_spi_digital_putvol(tas_priv, ucontrol, mc); } static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; guard(mutex)(&tas_priv->codec_lock); return tasdevice_spi_amp_putvol(tas_priv, ucontrol, mc); } static int tas2781_force_fwload_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = (int)tas_priv->force_fwload_status; dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, str_on_off(tas_priv->force_fwload_status)); return 0; } static int tas2781_force_fwload_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct tasdevice_priv *tas_priv = snd_kcontrol_chip(kcontrol); bool change, val = (bool)ucontrol->value.integer.value[0]; if (tas_priv->force_fwload_status == val) { change = false; } else { change = true; tas_priv->force_fwload_status = val; } dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__, str_on_off(tas_priv->force_fwload_status)); return change; } static struct snd_kcontrol_new tas2781_snd_ctls[] = { ACARD_SINGLE_RANGE_EXT_TLV(NULL, TAS2781_AMP_LEVEL, 1, 0, 20, 0, tas2781_amp_getvol, tas2781_amp_putvol, tas2781_amp_tlv), ACARD_SINGLE_RANGE_EXT_TLV(NULL, TAS2781_DVC_LVL, 0, 0, 200, 1, tas2781_digital_getvol, tas2781_digital_putvol, tas2781_dvc_tlv), ACARD_SINGLE_BOOL_EXT(NULL, 0, tas2781_force_fwload_get, tas2781_force_fwload_put), }; static struct snd_kcontrol_new tas2781_prof_ctl = { .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = tasdevice_info_profile, .get = tasdevice_get_profile_id, .put = tasdevice_set_profile_id, }; static struct snd_kcontrol_new tas2781_dsp_ctls[] = { /* Speaker Program */ { .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = tasdevice_info_programs, .get = tasdevice_program_get, .put = tasdevice_program_put, }, /* Speaker Config */ { .iface = SNDRV_CTL_ELEM_IFACE_CARD, .info = tasdevice_info_config, .get = tasdevice_config_get, .put = tasdevice_config_put, }, }; static void tas2781_hda_remove_controls(struct tas2781_hda *tas_hda) { struct hda_codec *codec = tas_hda->priv->codec; struct tas2781_hda_spi_priv *h_priv = tas_hda->hda_priv; snd_ctl_remove(codec->card, tas_hda->dsp_prog_ctl); snd_ctl_remove(codec->card, tas_hda->dsp_conf_ctl); for (int i = ARRAY_SIZE(h_priv->snd_ctls) - 1; i >= 0; i--) snd_ctl_remove(codec->card, h_priv->snd_ctls[i]); snd_ctl_remove(codec->card, tas_hda->prof_ctl); } static int tas2781_hda_spi_prf_ctl(struct tas2781_hda *h) { struct tasdevice_priv *p = h->priv; struct hda_codec *c = p->codec; char name[64]; int rc; snprintf(name, sizeof(name), "Speaker-%d Profile Id", p->index); tas2781_prof_ctl.name = name; h->prof_ctl = snd_ctl_new1(&tas2781_prof_ctl, p); rc = snd_ctl_add(c->card, h->prof_ctl); if (rc) dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_prof_ctl.name, rc); return rc; } static int tas2781_hda_spi_snd_ctls(struct tas2781_hda *h) { struct tas2781_hda_spi_priv *h_priv = h->hda_priv; struct tasdevice_priv *p = h->priv; struct hda_codec *c = p->codec; char name[64]; int i = 0; int rc; snprintf(name, sizeof(name), "Speaker-%d Analog Volume", p->index); tas2781_snd_ctls[i].name = name; h_priv->snd_ctls[i] = snd_ctl_new1(&tas2781_snd_ctls[i], p); rc = snd_ctl_add(c->card, h_priv->snd_ctls[i]); if (rc) { dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_snd_ctls[i].name, rc); return rc; } i++; snprintf(name, sizeof(name), "Speaker-%d Digital Volume", p->index); tas2781_snd_ctls[i].name = name; h_priv->snd_ctls[i] = snd_ctl_new1(&tas2781_snd_ctls[i], p); rc = snd_ctl_add(c->card, h_priv->snd_ctls[i]); if (rc) { dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_snd_ctls[i].name, rc); return rc; } i++; snprintf(name, sizeof(name), "Froce Speaker-%d FW Load", p->index); tas2781_snd_ctls[i].name = name; h_priv->snd_ctls[i] = snd_ctl_new1(&tas2781_snd_ctls[i], p); rc = snd_ctl_add(c->card, h_priv->snd_ctls[i]); if (rc) { dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_snd_ctls[i].name, rc); } return rc; } static int tas2781_hda_spi_dsp_ctls(struct tas2781_hda *h) { struct tasdevice_priv *p = h->priv; struct hda_codec *c = p->codec; char name[64]; int i = 0; int rc; snprintf(name, sizeof(name), "Speaker-%d Program Id", p->index); tas2781_dsp_ctls[i].name = name; h->dsp_prog_ctl = snd_ctl_new1(&tas2781_dsp_ctls[i], p); rc = snd_ctl_add(c->card, h->dsp_prog_ctl); if (rc) { dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_dsp_ctls[i].name, rc); return rc; } i++; snprintf(name, sizeof(name), "Speaker-%d Config Id", p->index); tas2781_dsp_ctls[i].name = name; h->dsp_conf_ctl = snd_ctl_new1(&tas2781_dsp_ctls[i], p); rc = snd_ctl_add(c->card, h->dsp_conf_ctl); if (rc) { dev_err(p->dev, "Failed to add KControl: %s, rc = %d\n", tas2781_dsp_ctls[i].name, rc); } return rc; } static void tasdev_fw_ready(const struct firmware *fmw, void *context) { struct tasdevice_priv *tas_priv = context; struct tas2781_hda *tas_hda = dev_get_drvdata(tas_priv->dev); struct hda_codec *codec = tas_priv->codec; int ret, val; pm_runtime_get_sync(tas_priv->dev); guard(mutex)(&tas_priv->codec_lock); ret = tasdevice_rca_parser(tas_priv, fmw); if (ret) goto out; /* Add control one time only. */ ret = tas2781_hda_spi_prf_ctl(tas_hda); if (ret) goto out; ret = tas2781_hda_spi_snd_ctls(tas_hda); if (ret) goto out; tasdevice_dsp_remove(tas_priv); tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING; scnprintf(tas_priv->coef_binaryname, 64, "TAS2XXX%04X-%01d.bin", lower_16_bits(codec->core.subsystem_id), tas_priv->index); ret = tasdevice_dsp_parser(tas_priv); if (ret) { dev_err(tas_priv->dev, "dspfw load %s error\n", tas_priv->coef_binaryname); tas_priv->fw_state = TASDEVICE_DSP_FW_FAIL; goto out; } ret = tas2781_hda_spi_dsp_ctls(tas_hda); if (ret) goto out; /* Perform AMP reset before firmware download. */ tas2781_spi_reset(tas_priv); tas_priv->rcabin.profile_cfg_id = 0; tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK; ret = tasdevice_spi_dev_read(tas_priv, tas_priv->index, TAS2781_REG_CLK_CONFIG, &val); if (ret < 0) goto out; if (val == TAS2781_REG_CLK_CONFIG_RESET) { ret = tasdevice_prmg_load(tas_priv, 0); if (ret < 0) { dev_err(tas_priv->dev, "FW download failed = %d\n", ret); goto out; } tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK; } if (tas_priv->fmw->nr_programs > 0) tas_priv->tasdevice[tas_priv->index].cur_prog = 0; if (tas_priv->fmw->nr_configurations > 0) tas_priv->tasdevice[tas_priv->index].cur_conf = 0; /* * If calibrated data occurs error, dsp will still works with default * calibrated data inside algo. */ tas2781_save_calibration(tas_hda); out: release_firmware(fmw); pm_runtime_put_autosuspend(tas_hda->priv->dev); } static int tas2781_hda_bind(struct device *dev, struct device *master, void *master_data) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct hda_component_parent *parent = master_data; struct hda_component *comp; struct hda_codec *codec; int ret; comp = hda_component_from_index(parent, tas_hda->priv->index); if (!comp) return -EINVAL; if (comp->dev) return -EBUSY; codec = parent->codec; pm_runtime_get_sync(dev); comp->dev = dev; strscpy(comp->name, dev_name(dev), sizeof(comp->name)); ret = tascodec_spi_init(tas_hda->priv, codec, THIS_MODULE, tasdev_fw_ready); if (!ret) comp->playback_hook = tas2781_hda_playback_hook; pm_runtime_put_autosuspend(dev); return ret; } static void tas2781_hda_unbind(struct device *dev, struct device *master, void *master_data) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct hda_component_parent *parent = master_data; struct tasdevice_priv *tas_priv = tas_hda->priv; struct hda_component *comp; comp = hda_component_from_index(parent, tas_priv->index); if (comp && (comp->dev == dev)) { comp->dev = NULL; memset(comp->name, 0, sizeof(comp->name)); comp->playback_hook = NULL; } tas2781_hda_remove_controls(tas_hda); tasdevice_config_info_remove(tas_priv); tasdevice_dsp_remove(tas_priv); tas_hda->priv->fw_state = TASDEVICE_DSP_FW_PENDING; } static const struct component_ops tas2781_hda_comp_ops = { .bind = tas2781_hda_bind, .unbind = tas2781_hda_unbind, }; static int tas2781_hda_spi_probe(struct spi_device *spi) { struct tas2781_hda_spi_priv *hda_priv; struct tasdevice_priv *tas_priv; struct tas2781_hda *tas_hda; const char *device_name; int ret = 0; tas_hda = devm_kzalloc(&spi->dev, sizeof(*tas_hda), GFP_KERNEL); if (!tas_hda) return -ENOMEM; hda_priv = devm_kzalloc(&spi->dev, sizeof(*hda_priv), GFP_KERNEL); if (!hda_priv) return -ENOMEM; tas_hda->hda_priv = hda_priv; spi->max_speed_hz = TAS2781_SPI_MAX_FREQ; tas_priv = devm_kzalloc(&spi->dev, sizeof(*tas_priv), GFP_KERNEL); if (!tas_priv) return -ENOMEM; tas_priv->dev = &spi->dev; tas_hda->priv = tas_priv; tas_priv->regmap = devm_regmap_init_spi(spi, &tasdevice_regmap); if (IS_ERR(tas_priv->regmap)) { ret = PTR_ERR(tas_priv->regmap); dev_err(tas_priv->dev, "Failed to allocate regmap: %d\n", ret); return ret; } if (strstr(dev_name(&spi->dev), "TXNW2781")) { device_name = "TXNW2781"; } else { dev_err(tas_priv->dev, "Unmatched spi dev %s\n", dev_name(&spi->dev)); return -ENODEV; } tas_priv->irq = spi->irq; dev_set_drvdata(&spi->dev, tas_hda); ret = tas2781_read_acpi(tas_hda, device_name, spi_get_chipselect(spi, 0)); if (ret) return dev_err_probe(tas_priv->dev, ret, "Platform not supported\n"); tasdevice_spi_init(tas_priv); pm_runtime_set_autosuspend_delay(tas_priv->dev, 3000); pm_runtime_use_autosuspend(tas_priv->dev); pm_runtime_set_active(tas_priv->dev); pm_runtime_get_noresume(tas_priv->dev); pm_runtime_enable(tas_priv->dev); pm_runtime_put_autosuspend(tas_priv->dev); ret = component_add(tas_priv->dev, &tas2781_hda_comp_ops); if (ret) { dev_err(tas_priv->dev, "Register component fail: %d\n", ret); pm_runtime_disable(tas_priv->dev); tas2781_hda_remove(&spi->dev, &tas2781_hda_comp_ops); } return ret; } static void tas2781_hda_spi_remove(struct spi_device *spi) { tas2781_hda_remove(&spi->dev, &tas2781_hda_comp_ops); } static int tas2781_runtime_suspend(struct device *dev) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct tasdevice_priv *tas_priv = tas_hda->priv; guard(mutex)(&tas_priv->codec_lock); if (tas_priv->fw_state == TASDEVICE_DSP_FW_ALL_OK && tas_priv->playback_started) tasdevice_tuning_switch(tas_priv, 1); tas_priv->tasdevice[tas_priv->index].cur_book = -1; tas_priv->tasdevice[tas_priv->index].cur_conf = -1; return 0; } static int tas2781_runtime_resume(struct device *dev) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct tasdevice_priv *tas_priv = tas_hda->priv; guard(mutex)(&tas_priv->codec_lock); if (tas_priv->fw_state == TASDEVICE_DSP_FW_ALL_OK && tas_priv->playback_started) tasdevice_tuning_switch(tas_priv, 0); return 0; } static int tas2781_system_suspend(struct device *dev) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct tasdevice_priv *tas_priv = tas_hda->priv; int ret; ret = pm_runtime_force_suspend(dev); if (ret) return ret; /* Shutdown chip before system suspend */ if (tas_priv->fw_state == TASDEVICE_DSP_FW_ALL_OK && tas_priv->playback_started) tasdevice_tuning_switch(tas_priv, 1); return 0; } static int tas2781_system_resume(struct device *dev) { struct tas2781_hda *tas_hda = dev_get_drvdata(dev); struct tasdevice_priv *tas_priv = tas_hda->priv; int ret, val; ret = pm_runtime_force_resume(dev); if (ret) return ret; guard(mutex)(&tas_priv->codec_lock); ret = tas_priv->dev_read(tas_priv, tas_priv->index, TAS2781_REG_CLK_CONFIG, &val); if (ret < 0) return ret; if (val == TAS2781_REG_CLK_CONFIG_RESET) { tas_priv->tasdevice[tas_priv->index].cur_book = -1; tas_priv->tasdevice[tas_priv->index].cur_conf = -1; tas_priv->tasdevice[tas_priv->index].cur_prog = -1; ret = tasdevice_prmg_load(tas_priv, 0); if (ret < 0) { dev_err(tas_priv->dev, "FW download failed = %d\n", ret); return ret; } tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK; if (tas_priv->playback_started) tasdevice_tuning_switch(tas_priv, 0); } return ret; } static const struct dev_pm_ops tas2781_hda_pm_ops = { RUNTIME_PM_OPS(tas2781_runtime_suspend, tas2781_runtime_resume, NULL) SYSTEM_SLEEP_PM_OPS(tas2781_system_suspend, tas2781_system_resume) }; static const struct spi_device_id tas2781_hda_spi_id[] = { { "tas2781-hda", }, {} }; static const struct acpi_device_id tas2781_acpi_hda_match[] = { {"TXNW2781", }, {} }; MODULE_DEVICE_TABLE(acpi, tas2781_acpi_hda_match); static struct spi_driver tas2781_hda_spi_driver = { .driver = { .name = "tas2781-hda", .acpi_match_table = tas2781_acpi_hda_match, .pm = &tas2781_hda_pm_ops, }, .id_table = tas2781_hda_spi_id, .probe = tas2781_hda_spi_probe, .remove = tas2781_hda_spi_remove, }; module_spi_driver(tas2781_hda_spi_driver); MODULE_DESCRIPTION("TAS2781 HDA SPI Driver"); MODULE_AUTHOR("Baojun, Xu, "); MODULE_LICENSE("GPL"); MODULE_IMPORT_NS("SND_SOC_TAS2781_FMWLIB"); MODULE_IMPORT_NS("SND_HDA_SCODEC_TAS2781");