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1// SPDX-License-Identifier: GPL-2.02//3// Driver for the Texas Instruments TAS2562 CODEC4// Copyright (C) 2019 Texas Instruments Inc.5 6 7#include <linux/module.h>8#include <linux/errno.h>9#include <linux/device.h>10#include <linux/i2c.h>11#include <linux/regmap.h>12#include <linux/slab.h>13#include <linux/gpio/consumer.h>14#include <linux/regulator/consumer.h>15#include <linux/delay.h>16 17#include <sound/pcm.h>18#include <sound/pcm_params.h>19#include <sound/soc.h>20#include <sound/soc-dapm.h>21#include <sound/tlv.h>22 23#include "tas2562.h"24 25#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\26 SNDRV_PCM_FORMAT_S32_LE)27 28/* DVC equation involves floating point math29 * round(10^(volume in dB/20)*2^30)30 * so create a lookup table for 2dB step31 */32static const unsigned int float_vol_db_lookup[] = {330x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,340x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,350x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,360x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,370x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,380x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,390x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,400x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,410x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,420x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,430x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x4000000044};45 46struct tas2562_data {47 struct snd_soc_component *component;48 struct gpio_desc *sdz_gpio;49 struct regmap *regmap;50 struct device *dev;51 struct i2c_client *client;52 int v_sense_slot;53 int i_sense_slot;54 int volume_lvl;55 int model_id;56 bool dac_powered;57 bool unmuted;58};59 60enum tas256x_model {61 TAS2562,62 TAS2564,63 TAS2110,64};65 66static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)67{68 int samp_rate;69 int ramp_rate;70 71 switch (samplerate) {72 case 7350:73 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;74 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;75 break;76 case 8000:77 ramp_rate = 0;78 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;79 break;80 case 14700:81 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;82 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;83 break;84 case 16000:85 ramp_rate = 0;86 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;87 break;88 case 22050:89 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;90 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;91 break;92 case 24000:93 ramp_rate = 0;94 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;95 break;96 case 29400:97 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;98 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;99 break;100 case 32000:101 ramp_rate = 0;102 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;103 break;104 case 44100:105 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;106 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;107 break;108 case 48000:109 ramp_rate = 0;110 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;111 break;112 case 88200:113 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;114 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;115 break;116 case 96000:117 ramp_rate = 0;118 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;119 break;120 case 176400:121 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;122 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;123 break;124 case 192000:125 ramp_rate = 0;126 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;127 break;128 default:129 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",130 __func__, samplerate);131 return -EINVAL;132 }133 134 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,135 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);136 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,137 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);138 139 return 0;140}141 142static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,143 unsigned int tx_mask, unsigned int rx_mask,144 int slots, int slot_width)145{146 struct snd_soc_component *component = dai->component;147 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);148 int left_slot, right_slot;149 int slots_cfg;150 int ret;151 152 if (!tx_mask) {153 dev_err(component->dev, "tx masks must not be 0\n");154 return -EINVAL;155 }156 157 if (slots == 1) {158 if (tx_mask != 1)159 return -EINVAL;160 161 left_slot = 0;162 right_slot = 0;163 } else {164 left_slot = __ffs(tx_mask);165 tx_mask &= ~(1 << left_slot);166 if (tx_mask == 0) {167 right_slot = left_slot;168 } else {169 right_slot = __ffs(tx_mask);170 }171 }172 173 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;174 175 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);176 if (ret < 0)177 return ret;178 179 switch (slot_width) {180 case 16:181 ret = snd_soc_component_update_bits(component,182 TAS2562_TDM_CFG2,183 TAS2562_TDM_CFG2_RXLEN_MASK,184 TAS2562_TDM_CFG2_RXLEN_16B);185 break;186 case 24:187 ret = snd_soc_component_update_bits(component,188 TAS2562_TDM_CFG2,189 TAS2562_TDM_CFG2_RXLEN_MASK,190 TAS2562_TDM_CFG2_RXLEN_24B);191 break;192 case 32:193 ret = snd_soc_component_update_bits(component,194 TAS2562_TDM_CFG2,195 TAS2562_TDM_CFG2_RXLEN_MASK,196 TAS2562_TDM_CFG2_RXLEN_32B);197 break;198 199 case 0:200 /* Do not change slot width */201 break;202 default:203 dev_err(tas2562->dev, "slot width not supported");204 ret = -EINVAL;205 }206 207 if (ret < 0)208 return ret;209 210 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,211 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,212 tas2562->v_sense_slot);213 if (ret < 0)214 return ret;215 216 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,217 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,218 tas2562->i_sense_slot);219 if (ret < 0)220 return ret;221 222 return 0;223}224 225static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)226{227 int ret;228 int val;229 int sense_en;230 231 switch (bitwidth) {232 case SNDRV_PCM_FORMAT_S16_LE:233 snd_soc_component_update_bits(tas2562->component,234 TAS2562_TDM_CFG2,235 TAS2562_TDM_CFG2_RXWLEN_MASK,236 TAS2562_TDM_CFG2_RXWLEN_16B);237 break;238 case SNDRV_PCM_FORMAT_S24_LE:239 snd_soc_component_update_bits(tas2562->component,240 TAS2562_TDM_CFG2,241 TAS2562_TDM_CFG2_RXWLEN_MASK,242 TAS2562_TDM_CFG2_RXWLEN_24B);243 break;244 case SNDRV_PCM_FORMAT_S32_LE:245 snd_soc_component_update_bits(tas2562->component,246 TAS2562_TDM_CFG2,247 TAS2562_TDM_CFG2_RXWLEN_MASK,248 TAS2562_TDM_CFG2_RXWLEN_32B);249 break;250 251 default:252 dev_info(tas2562->dev, "Unsupported bitwidth format\n");253 return -EINVAL;254 }255 256 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);257 if (val < 0)258 return val;259 260 if (val & (1 << TAS2562_VSENSE_POWER_EN))261 sense_en = 0;262 else263 sense_en = TAS2562_TDM_CFG5_VSNS_EN;264 265 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,266 TAS2562_TDM_CFG5_VSNS_EN, sense_en);267 if (ret < 0)268 return ret;269 270 if (val & (1 << TAS2562_ISENSE_POWER_EN))271 sense_en = 0;272 else273 sense_en = TAS2562_TDM_CFG6_ISNS_EN;274 275 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,276 TAS2562_TDM_CFG6_ISNS_EN, sense_en);277 if (ret < 0)278 return ret;279 280 return 0;281}282 283static int tas2562_hw_params(struct snd_pcm_substream *substream,284 struct snd_pcm_hw_params *params,285 struct snd_soc_dai *dai)286{287 struct snd_soc_component *component = dai->component;288 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);289 int ret;290 291 ret = tas2562_set_bitwidth(tas2562, params_format(params));292 if (ret) {293 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);294 return ret;295 }296 297 ret = tas2562_set_samplerate(tas2562, params_rate(params));298 if (ret)299 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);300 301 return ret;302}303 304static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)305{306 struct snd_soc_component *component = dai->component;307 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);308 u8 asi_cfg_1 = 0;309 u8 tdm_rx_start_slot = 0;310 int ret;311 312 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {313 case SND_SOC_DAIFMT_NB_NF:314 asi_cfg_1 = 0;315 break;316 case SND_SOC_DAIFMT_IB_NF:317 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;318 break;319 default:320 dev_err(tas2562->dev, "ASI format Inverse is not found\n");321 return -EINVAL;322 }323 324 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,325 TAS2562_TDM_CFG1_RX_EDGE_MASK,326 asi_cfg_1);327 if (ret < 0) {328 dev_err(tas2562->dev, "Failed to set RX edge\n");329 return ret;330 }331 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {332 case SND_SOC_DAIFMT_LEFT_J:333 case SND_SOC_DAIFMT_DSP_B:334 tdm_rx_start_slot = 0;335 break;336 case SND_SOC_DAIFMT_I2S:337 case SND_SOC_DAIFMT_DSP_A:338 tdm_rx_start_slot = 1;339 break;340 default:341 dev_err(tas2562->dev,342 "DAI Format is not found, fmt=0x%x\n", fmt);343 return -EINVAL;344 }345 346 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,347 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));348 if (ret < 0)349 return ret;350 351 return 0;352}353 354static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)355{356 struct snd_soc_component *component = tas2562->component;357 unsigned int val;358 int ret;359 360 if (tas2562->dac_powered)361 val = tas2562->unmuted ?362 TAS2562_ACTIVE : TAS2562_MUTE;363 else364 val = TAS2562_SHUTDOWN;365 366 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,367 TAS2562_MODE_MASK, val);368 if (ret < 0)369 return ret;370 371 return 0;372}373 374static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)375{376 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);377 378 tas2562->unmuted = !mute;379 return tas2562_update_pwr_ctrl(tas2562);380}381 382static int tas2562_codec_probe(struct snd_soc_component *component)383{384 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);385 386 tas2562->component = component;387 388 if (tas2562->sdz_gpio)389 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);390 391 return 0;392}393 394#ifdef CONFIG_PM395static int tas2562_suspend(struct snd_soc_component *component)396{397 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);398 399 regcache_cache_only(tas2562->regmap, true);400 regcache_mark_dirty(tas2562->regmap);401 402 if (tas2562->sdz_gpio)403 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);404 405 return 0;406}407 408static int tas2562_resume(struct snd_soc_component *component)409{410 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);411 412 if (tas2562->sdz_gpio)413 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);414 415 regcache_cache_only(tas2562->regmap, false);416 417 return regcache_sync(tas2562->regmap);418}419#else420#define tas2562_suspend NULL421#define tas2562_resume NULL422#endif423 424static const char * const tas2562_ASI1_src[] = {425 "I2C offset", "Left", "Right", "LeftRightDiv2",426};427 428static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,429 tas2562_ASI1_src);430 431static const struct snd_kcontrol_new tas2562_asi1_mux =432 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);433 434static int tas2562_dac_event(struct snd_soc_dapm_widget *w,435 struct snd_kcontrol *kcontrol, int event)436{437 struct snd_soc_component *component =438 snd_soc_dapm_to_component(w->dapm);439 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);440 int ret = 0;441 442 switch (event) {443 case SND_SOC_DAPM_POST_PMU:444 tas2562->dac_powered = true;445 ret = tas2562_update_pwr_ctrl(tas2562);446 break;447 case SND_SOC_DAPM_PRE_PMD:448 tas2562->dac_powered = false;449 ret = tas2562_update_pwr_ctrl(tas2562);450 break;451 default:452 dev_err(tas2562->dev, "Not supported evevt\n");453 return -EINVAL;454 }455 456 return ret;457}458 459static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,460 struct snd_ctl_elem_value *ucontrol)461{462 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);463 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);464 465 ucontrol->value.integer.value[0] = tas2562->volume_lvl;466 return 0;467}468 469static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,470 struct snd_ctl_elem_value *ucontrol)471{472 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);473 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);474 int ret;475 u32 reg_val;476 477 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];478 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,479 (reg_val & 0xff));480 if (ret)481 return ret;482 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,483 ((reg_val >> 8) & 0xff));484 if (ret)485 return ret;486 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,487 ((reg_val >> 16) & 0xff));488 if (ret)489 return ret;490 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,491 ((reg_val >> 24) & 0xff));492 if (ret)493 return ret;494 495 tas2562->volume_lvl = ucontrol->value.integer.value[0];496 497 return 0;498}499 500/* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */501static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);502 503static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);504 505static const struct snd_kcontrol_new isense_switch =506 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,507 1, 1);508 509static const struct snd_kcontrol_new vsense_switch =510 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,511 1, 1);512 513static const struct snd_kcontrol_new tas2562_snd_controls[] = {514 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,515 tas2562_dac_tlv),516 {517 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,518 .name = "Digital Volume Control",519 .index = 0,520 .tlv.p = dvc_tlv,521 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,522 .info = snd_soc_info_volsw,523 .get = tas2562_volume_control_get,524 .put = tas2562_volume_control_put,525 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),526 },527};528 529static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {530 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),531 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),532 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,533 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),534 SND_SOC_DAPM_OUTPUT("OUT"),535};536 537static const struct snd_soc_dapm_route tas2110_audio_map[] = {538 {"ASI1 Sel", "I2C offset", "ASI1"},539 {"ASI1 Sel", "Left", "ASI1"},540 {"ASI1 Sel", "Right", "ASI1"},541 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},542 { "DAC", NULL, "ASI1 Sel" },543 { "OUT", NULL, "DAC" },544};545 546static const struct snd_soc_component_driver soc_component_dev_tas2110 = {547 .probe = tas2562_codec_probe,548 .suspend = tas2562_suspend,549 .resume = tas2562_resume,550 .controls = tas2562_snd_controls,551 .num_controls = ARRAY_SIZE(tas2562_snd_controls),552 .dapm_widgets = tas2110_dapm_widgets,553 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),554 .dapm_routes = tas2110_audio_map,555 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),556 .idle_bias_on = 1,557 .use_pmdown_time = 1,558 .endianness = 1,559};560 561static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {562 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),563 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),564 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,565 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),566 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),567 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),568 SND_SOC_DAPM_SIGGEN("VMON"),569 SND_SOC_DAPM_SIGGEN("IMON"),570 SND_SOC_DAPM_OUTPUT("OUT"),571};572 573static const struct snd_soc_dapm_route tas2562_audio_map[] = {574 {"ASI1 Sel", "I2C offset", "ASI1"},575 {"ASI1 Sel", "Left", "ASI1"},576 {"ASI1 Sel", "Right", "ASI1"},577 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},578 { "DAC", NULL, "ASI1 Sel" },579 { "OUT", NULL, "DAC" },580 {"ISENSE", "Switch", "IMON"},581 {"VSENSE", "Switch", "VMON"},582};583 584static const struct snd_soc_component_driver soc_component_dev_tas2562 = {585 .probe = tas2562_codec_probe,586 .suspend = tas2562_suspend,587 .resume = tas2562_resume,588 .controls = tas2562_snd_controls,589 .num_controls = ARRAY_SIZE(tas2562_snd_controls),590 .dapm_widgets = tas2562_dapm_widgets,591 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),592 .dapm_routes = tas2562_audio_map,593 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),594 .idle_bias_on = 1,595 .use_pmdown_time = 1,596 .endianness = 1,597};598 599static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {600 .hw_params = tas2562_hw_params,601 .set_fmt = tas2562_set_dai_fmt,602 .set_tdm_slot = tas2562_set_dai_tdm_slot,603 .mute_stream = tas2562_mute,604 .no_capture_mute = 1,605};606 607static struct snd_soc_dai_driver tas2562_dai[] = {608 {609 .name = "tas2562-amplifier",610 .id = 0,611 .playback = {612 .stream_name = "ASI1 Playback",613 .channels_min = 2,614 .channels_max = 2,615 .rates = SNDRV_PCM_RATE_8000_192000,616 .formats = TAS2562_FORMATS,617 },618 .capture = {619 .stream_name = "ASI1 Capture",620 .channels_min = 0,621 .channels_max = 2,622 .rates = SNDRV_PCM_RATE_8000_192000,623 .formats = TAS2562_FORMATS,624 },625 .ops = &tas2562_speaker_dai_ops,626 },627};628 629static const struct regmap_range_cfg tas2562_ranges[] = {630 {631 .range_min = 0,632 .range_max = 5 * 128,633 .selector_reg = TAS2562_PAGE_CTRL,634 .selector_mask = 0xff,635 .selector_shift = 0,636 .window_start = 0,637 .window_len = 128,638 },639};640 641static const struct reg_default tas2562_reg_defaults[] = {642 { TAS2562_PAGE_CTRL, 0x00 },643 { TAS2562_SW_RESET, 0x00 },644 { TAS2562_PWR_CTRL, 0x0e },645 { TAS2562_PB_CFG1, 0x20 },646 { TAS2562_TDM_CFG0, 0x09 },647 { TAS2562_TDM_CFG1, 0x02 },648 { TAS2562_DVC_CFG1, 0x40 },649 { TAS2562_DVC_CFG2, 0x40 },650 { TAS2562_DVC_CFG3, 0x00 },651 { TAS2562_DVC_CFG4, 0x00 },652};653 654static const struct regmap_config tas2562_regmap_config = {655 .reg_bits = 8,656 .val_bits = 8,657 658 .max_register = 5 * 128,659 .cache_type = REGCACHE_RBTREE,660 .reg_defaults = tas2562_reg_defaults,661 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),662 .ranges = tas2562_ranges,663 .num_ranges = ARRAY_SIZE(tas2562_ranges),664};665 666static int tas2562_parse_dt(struct tas2562_data *tas2562)667{668 struct device *dev = tas2562->dev;669 int ret = 0;670 671 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);672 if (IS_ERR(tas2562->sdz_gpio)) {673 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)674 return -EPROBE_DEFER;675 676 tas2562->sdz_gpio = NULL;677 }678 679 /*680 * The shut-down property is deprecated but needs to be checked for681 * backwards compatibility.682 */683 if (tas2562->sdz_gpio == NULL) {684 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",685 GPIOD_OUT_HIGH);686 if (IS_ERR(tas2562->sdz_gpio))687 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)688 return -EPROBE_DEFER;689 690 tas2562->sdz_gpio = NULL;691 }692 693 if (tas2562->model_id == TAS2110)694 return ret;695 696 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",697 &tas2562->i_sense_slot);698 if (ret) {699 dev_err(dev, "Property %s is missing setting default slot\n",700 "ti,imon-slot-no");701 tas2562->i_sense_slot = 0;702 }703 704 705 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",706 &tas2562->v_sense_slot);707 if (ret) {708 dev_info(dev, "Property %s is missing setting default slot\n",709 "ti,vmon-slot-no");710 tas2562->v_sense_slot = 2;711 }712 713 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {714 dev_err(dev, "Vsense slot must be greater than Isense slot\n");715 return -EINVAL;716 }717 718 return ret;719}720 721static const struct i2c_device_id tas2562_id[] = {722 { "tas2562", TAS2562 },723 { "tas2564", TAS2564 },724 { "tas2110", TAS2110 },725 { }726};727MODULE_DEVICE_TABLE(i2c, tas2562_id);728 729static int tas2562_probe(struct i2c_client *client)730{731 struct device *dev = &client->dev;732 struct tas2562_data *data;733 int ret;734 const struct i2c_device_id *id;735 736 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);737 if (!data)738 return -ENOMEM;739 740 id = i2c_match_id(tas2562_id, client);741 data->client = client;742 data->dev = &client->dev;743 data->model_id = id->driver_data;744 745 tas2562_parse_dt(data);746 747 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);748 if (IS_ERR(data->regmap)) {749 ret = PTR_ERR(data->regmap);750 dev_err(dev, "failed to allocate register map: %d\n", ret);751 return ret;752 }753 754 dev_set_drvdata(&client->dev, data);755 756 if (data->model_id == TAS2110)757 return devm_snd_soc_register_component(dev,758 &soc_component_dev_tas2110,759 tas2562_dai,760 ARRAY_SIZE(tas2562_dai));761 762 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,763 tas2562_dai,764 ARRAY_SIZE(tas2562_dai));765 766}767 768#ifdef CONFIG_OF769static const struct of_device_id tas2562_of_match[] = {770 { .compatible = "ti,tas2562", },771 { .compatible = "ti,tas2564", },772 { .compatible = "ti,tas2110", },773 { },774};775MODULE_DEVICE_TABLE(of, tas2562_of_match);776#endif777 778static struct i2c_driver tas2562_i2c_driver = {779 .driver = {780 .name = "tas2562",781 .of_match_table = of_match_ptr(tas2562_of_match),782 },783 .probe = tas2562_probe,784 .id_table = tas2562_id,785};786 787module_i2c_driver(tas2562_i2c_driver);788 789MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");790MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");791MODULE_LICENSE("GPL");792