// SPDX-License-Identifier: GPL-2.0 // // Driver for the Texas Instruments TAS2562 CODEC // Copyright (C) 2019 Texas Instruments Inc. #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "tas2562.h" #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\ SNDRV_PCM_FORMAT_S32_LE) /* DVC equation involves floating point math * round(10^(volume in dB/20)*2^30) * so create a lookup table for 2dB step */ static const unsigned int float_vol_db_lookup[] = { 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151, 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b, 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a, 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f, 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7, 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d, 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a, 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27, 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68, 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362, 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000 }; struct tas2562_data { struct snd_soc_component *component; struct gpio_desc *sdz_gpio; struct regmap *regmap; struct device *dev; struct i2c_client *client; int v_sense_slot; int i_sense_slot; int volume_lvl; int model_id; bool dac_powered; bool unmuted; }; enum tas256x_model { TAS2562, TAS2563, TAS2564, TAS2110, }; static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate) { int samp_rate; int ramp_rate; switch (samplerate) { case 7350: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; break; case 8000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; break; case 14700: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; break; case 16000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; break; case 22050: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; break; case 24000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; break; case 29400: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; break; case 32000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; break; case 44100: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; break; case 48000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; break; case 88200: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; break; case 96000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; break; case 176400: ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; break; case 192000: ramp_rate = 0; samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; break; default: dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n", __func__, samplerate); return -EINVAL; } snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate); snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate); return 0; } static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width) { struct snd_soc_component *component = dai->component; struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); int left_slot, right_slot; int slots_cfg; int ret; if (!tx_mask) { dev_err(component->dev, "tx masks must not be 0\n"); return -EINVAL; } if (slots == 1) { if (tx_mask != 1) return -EINVAL; left_slot = 0; right_slot = 0; } else { left_slot = __ffs(tx_mask); tx_mask &= ~(1 << left_slot); if (tx_mask == 0) { right_slot = left_slot; } else { right_slot = __ffs(tx_mask); } } slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot; ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg); if (ret < 0) return ret; switch (slot_width) { case 16: ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXLEN_MASK, TAS2562_TDM_CFG2_RXLEN_16B); break; case 24: ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXLEN_MASK, TAS2562_TDM_CFG2_RXLEN_24B); break; case 32: ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXLEN_MASK, TAS2562_TDM_CFG2_RXLEN_32B); break; case 0: /* Do not change slot width */ break; default: dev_err(tas2562->dev, "slot width not supported"); ret = -EINVAL; } if (ret < 0) return ret; ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5, TAS2562_TDM_CFG5_VSNS_SLOT_MASK, tas2562->v_sense_slot); if (ret < 0) return ret; ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6, TAS2562_TDM_CFG6_ISNS_SLOT_MASK, tas2562->i_sense_slot); if (ret < 0) return ret; return 0; } static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth) { int ret; int val; int sense_en; switch (bitwidth) { case SNDRV_PCM_FORMAT_S16_LE: snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXWLEN_MASK, TAS2562_TDM_CFG2_RXWLEN_16B); break; case SNDRV_PCM_FORMAT_S24_LE: snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXWLEN_MASK, TAS2562_TDM_CFG2_RXWLEN_24B); break; case SNDRV_PCM_FORMAT_S32_LE: snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG2, TAS2562_TDM_CFG2_RXWLEN_MASK, TAS2562_TDM_CFG2_RXWLEN_32B); break; default: dev_info(tas2562->dev, "Unsupported bitwidth format\n"); return -EINVAL; } val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL); if (val < 0) return val; if (val & (1 << TAS2562_VSENSE_POWER_EN)) sense_en = 0; else sense_en = TAS2562_TDM_CFG5_VSNS_EN; ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5, TAS2562_TDM_CFG5_VSNS_EN, sense_en); if (ret < 0) return ret; if (val & (1 << TAS2562_ISENSE_POWER_EN)) sense_en = 0; else sense_en = TAS2562_TDM_CFG6_ISNS_EN; ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6, TAS2562_TDM_CFG6_ISNS_EN, sense_en); if (ret < 0) return ret; return 0; } static int tas2562_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct snd_soc_component *component = dai->component; struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); int ret; ret = tas2562_set_bitwidth(tas2562, params_format(params)); if (ret) { dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret); return ret; } ret = tas2562_set_samplerate(tas2562, params_rate(params)); if (ret) dev_err(tas2562->dev, "set sample rate failed, %d\n", ret); return ret; } static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_component *component = dai->component; struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); u8 asi_cfg_1 = 0; u8 tdm_rx_start_slot = 0; int ret; switch (fmt & SND_SOC_DAIFMT_INV_MASK) { case SND_SOC_DAIFMT_NB_NF: asi_cfg_1 = 0; break; case SND_SOC_DAIFMT_IB_NF: asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING; break; default: dev_err(tas2562->dev, "ASI format Inverse is not found\n"); return -EINVAL; } ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, TAS2562_TDM_CFG1_RX_EDGE_MASK, asi_cfg_1); if (ret < 0) { dev_err(tas2562->dev, "Failed to set RX edge\n"); return ret; } switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_LEFT_J: case SND_SOC_DAIFMT_DSP_B: tdm_rx_start_slot = 0; break; case SND_SOC_DAIFMT_I2S: case SND_SOC_DAIFMT_DSP_A: tdm_rx_start_slot = 1; break; default: dev_err(tas2562->dev, "DAI Format is not found, fmt=0x%x\n", fmt); return -EINVAL; } ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1)); if (ret < 0) return ret; return 0; } static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562) { struct snd_soc_component *component = tas2562->component; unsigned int val; int ret; if (tas2562->dac_powered) val = tas2562->unmuted ? TAS2562_ACTIVE : TAS2562_MUTE; else val = TAS2562_SHUTDOWN; ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL, TAS2562_MODE_MASK, val); if (ret < 0) return ret; return 0; } static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction) { struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component); tas2562->unmuted = !mute; return tas2562_update_pwr_ctrl(tas2562); } static int tas2562_codec_probe(struct snd_soc_component *component) { struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); tas2562->component = component; if (tas2562->sdz_gpio) gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); return 0; } #ifdef CONFIG_PM static int tas2562_suspend(struct snd_soc_component *component) { struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); regcache_cache_only(tas2562->regmap, true); regcache_mark_dirty(tas2562->regmap); if (tas2562->sdz_gpio) gpiod_set_value_cansleep(tas2562->sdz_gpio, 0); return 0; } static int tas2562_resume(struct snd_soc_component *component) { struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); if (tas2562->sdz_gpio) gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); regcache_cache_only(tas2562->regmap, false); return regcache_sync(tas2562->regmap); } #else #define tas2562_suspend NULL #define tas2562_resume NULL #endif static const char * const tas2562_ASI1_src[] = { "I2C offset", "Left", "Right", "LeftRightDiv2", }; static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4, tas2562_ASI1_src); static const struct snd_kcontrol_new tas2562_asi1_mux = SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum); static int tas2562_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); int ret = 0; switch (event) { case SND_SOC_DAPM_POST_PMU: tas2562->dac_powered = true; ret = tas2562_update_pwr_ctrl(tas2562); break; case SND_SOC_DAPM_PRE_PMD: tas2562->dac_powered = false; ret = tas2562_update_pwr_ctrl(tas2562); break; default: dev_err(tas2562->dev, "Not supported evevt\n"); return -EINVAL; } return ret; } static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = tas2562->volume_lvl; return 0; } static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); int ret; u32 reg_val; reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2]; ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, (reg_val & 0xff)); if (ret) return ret; ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, ((reg_val >> 8) & 0xff)); if (ret) return ret; ret = snd_soc_component_write(component, TAS2562_DVC_CFG2, ((reg_val >> 16) & 0xff)); if (ret) return ret; ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, ((reg_val >> 24) & 0xff)); if (ret) return ret; tas2562->volume_lvl = ucontrol->value.integer.value[0]; return 0; } /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */ static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0); static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0); static const struct snd_kcontrol_new isense_switch = SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN, 1, 1); static const struct snd_kcontrol_new vsense_switch = SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN, 1, 1); static const struct snd_kcontrol_new tas2562_snd_controls[] = { SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0, tas2562_dac_tlv), { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Digital Volume Control", .index = 0, .tlv.p = dvc_tlv, .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE, .info = snd_soc_info_volsw, .get = tas2562_volume_control_get, .put = tas2562_volume_control_put, .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0), }, }; static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_OUTPUT("OUT"), }; static const struct snd_soc_dapm_route tas2110_audio_map[] = { {"ASI1 Sel", "I2C offset", "ASI1"}, {"ASI1 Sel", "Left", "ASI1"}, {"ASI1 Sel", "Right", "ASI1"}, {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, { "DAC", NULL, "ASI1 Sel" }, { "OUT", NULL, "DAC" }, }; static const struct snd_soc_component_driver soc_component_dev_tas2110 = { .probe = tas2562_codec_probe, .suspend = tas2562_suspend, .resume = tas2562_resume, .controls = tas2562_snd_controls, .num_controls = ARRAY_SIZE(tas2562_snd_controls), .dapm_widgets = tas2110_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets), .dapm_routes = tas2110_audio_map, .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map), .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, }; static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = { SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch), SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch), SND_SOC_DAPM_SIGGEN("VMON"), SND_SOC_DAPM_SIGGEN("IMON"), SND_SOC_DAPM_OUTPUT("OUT"), }; static const struct snd_soc_dapm_route tas2562_audio_map[] = { {"ASI1 Sel", "I2C offset", "ASI1"}, {"ASI1 Sel", "Left", "ASI1"}, {"ASI1 Sel", "Right", "ASI1"}, {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, { "DAC", NULL, "ASI1 Sel" }, { "OUT", NULL, "DAC" }, {"ISENSE", "Switch", "IMON"}, {"VSENSE", "Switch", "VMON"}, }; static const struct snd_soc_component_driver soc_component_dev_tas2562 = { .probe = tas2562_codec_probe, .suspend = tas2562_suspend, .resume = tas2562_resume, .controls = tas2562_snd_controls, .num_controls = ARRAY_SIZE(tas2562_snd_controls), .dapm_widgets = tas2562_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets), .dapm_routes = tas2562_audio_map, .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map), .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, }; static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = { .hw_params = tas2562_hw_params, .set_fmt = tas2562_set_dai_fmt, .set_tdm_slot = tas2562_set_dai_tdm_slot, .mute_stream = tas2562_mute, .no_capture_mute = 1, }; static struct snd_soc_dai_driver tas2562_dai[] = { { .name = "tas2562-amplifier", .id = 0, .playback = { .stream_name = "ASI1 Playback", .channels_min = 2, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = TAS2562_FORMATS, }, .capture = { .stream_name = "ASI1 Capture", .channels_min = 0, .channels_max = 2, .rates = SNDRV_PCM_RATE_8000_192000, .formats = TAS2562_FORMATS, }, .ops = &tas2562_speaker_dai_ops, }, }; static const struct regmap_range_cfg tas2562_ranges[] = { { .range_min = 0, .range_max = 5 * 128, .selector_reg = TAS2562_PAGE_CTRL, .selector_mask = 0xff, .selector_shift = 0, .window_start = 0, .window_len = 128, }, }; static const struct reg_default tas2562_reg_defaults[] = { { TAS2562_PAGE_CTRL, 0x00 }, { TAS2562_SW_RESET, 0x00 }, { TAS2562_PWR_CTRL, 0x0e }, { TAS2562_PB_CFG1, 0x20 }, { TAS2562_TDM_CFG0, 0x09 }, { TAS2562_TDM_CFG1, 0x02 }, { TAS2562_DVC_CFG1, 0x40 }, { TAS2562_DVC_CFG2, 0x40 }, { TAS2562_DVC_CFG3, 0x00 }, { TAS2562_DVC_CFG4, 0x00 }, }; static const struct regmap_config tas2562_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 5 * 128, .cache_type = REGCACHE_RBTREE, .reg_defaults = tas2562_reg_defaults, .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults), .ranges = tas2562_ranges, .num_ranges = ARRAY_SIZE(tas2562_ranges), }; static int tas2562_parse_dt(struct tas2562_data *tas2562) { struct device *dev = tas2562->dev; int ret = 0; tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); if (IS_ERR(tas2562->sdz_gpio)) { if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) return -EPROBE_DEFER; tas2562->sdz_gpio = NULL; } /* * The shut-down property is deprecated but needs to be checked for * backwards compatibility. */ if (tas2562->sdz_gpio == NULL) { tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down", GPIOD_OUT_HIGH); if (IS_ERR(tas2562->sdz_gpio)) if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) return -EPROBE_DEFER; tas2562->sdz_gpio = NULL; } if (tas2562->model_id == TAS2110) return ret; ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no", &tas2562->i_sense_slot); if (ret) { dev_err(dev, "Property %s is missing setting default slot\n", "ti,imon-slot-no"); tas2562->i_sense_slot = 0; } ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no", &tas2562->v_sense_slot); if (ret) { dev_info(dev, "Property %s is missing setting default slot\n", "ti,vmon-slot-no"); tas2562->v_sense_slot = 2; } if (tas2562->v_sense_slot < tas2562->i_sense_slot) { dev_err(dev, "Vsense slot must be greater than Isense slot\n"); return -EINVAL; } return ret; } static const struct i2c_device_id tas2562_id[] = { { "tas2562", TAS2562 }, { "tas2563", TAS2563 }, { "tas2564", TAS2564 }, { "tas2110", TAS2110 }, { } }; MODULE_DEVICE_TABLE(i2c, tas2562_id); static int tas2562_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct tas2562_data *data; int ret; const struct i2c_device_id *id; data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; id = i2c_match_id(tas2562_id, client); data->client = client; data->dev = &client->dev; data->model_id = id->driver_data; tas2562_parse_dt(data); data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config); if (IS_ERR(data->regmap)) { ret = PTR_ERR(data->regmap); dev_err(dev, "failed to allocate register map: %d\n", ret); return ret; } dev_set_drvdata(&client->dev, data); if (data->model_id == TAS2110) return devm_snd_soc_register_component(dev, &soc_component_dev_tas2110, tas2562_dai, ARRAY_SIZE(tas2562_dai)); return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562, tas2562_dai, ARRAY_SIZE(tas2562_dai)); } #ifdef CONFIG_OF static const struct of_device_id tas2562_of_match[] = { { .compatible = "ti,tas2562", }, { .compatible = "ti,tas2563", }, { .compatible = "ti,tas2564", }, { .compatible = "ti,tas2110", }, { }, }; MODULE_DEVICE_TABLE(of, tas2562_of_match); #endif static struct i2c_driver tas2562_i2c_driver = { .driver = { .name = "tas2562", .of_match_table = of_match_ptr(tas2562_of_match), }, .probe = tas2562_probe, .id_table = tas2562_id, }; module_i2c_driver(tas2562_i2c_driver); MODULE_AUTHOR("Dan Murphy "); MODULE_DESCRIPTION("TAS2562 Audio amplifier driver"); MODULE_LICENSE("GPL");