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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Sensortek STK3310/STK3311 Ambient Light and Proximity Sensor4 *5 * Copyright (c) 2015, Intel Corporation.6 *7 * IIO driver for STK3310/STK3311. 7-bit I2C address: 0x48.8 */9 10#include <linux/i2c.h>11#include <linux/interrupt.h>12#include <linux/kernel.h>13#include <linux/module.h>14#include <linux/mod_devicetable.h>15#include <linux/regmap.h>16#include <linux/iio/events.h>17#include <linux/iio/iio.h>18#include <linux/iio/sysfs.h>19 20#define STK3310_REG_STATE 0x0021#define STK3310_REG_PSCTRL 0x0122#define STK3310_REG_ALSCTRL 0x0223#define STK3310_REG_INT 0x0424#define STK3310_REG_THDH_PS 0x0625#define STK3310_REG_THDL_PS 0x0826#define STK3310_REG_FLAG 0x1027#define STK3310_REG_PS_DATA_MSB 0x1128#define STK3310_REG_PS_DATA_LSB 0x1229#define STK3310_REG_ALS_DATA_MSB 0x1330#define STK3310_REG_ALS_DATA_LSB 0x1431#define STK3310_REG_ID 0x3E32#define STK3310_MAX_REG 0x8033 34#define STK3310_STATE_EN_PS BIT(0)35#define STK3310_STATE_EN_ALS BIT(1)36#define STK3310_STATE_STANDBY 0x0037 38#define STK3013_CHIP_ID_VAL 0x3139#define STK3310_CHIP_ID_VAL 0x1340#define STK3311_CHIP_ID_VAL 0x1D41#define STK3311A_CHIP_ID_VAL 0x1542#define STK3311S34_CHIP_ID_VAL 0x1E43#define STK3311X_CHIP_ID_VAL 0x1244#define STK3335_CHIP_ID_VAL 0x5145#define STK3310_PSINT_EN 0x0146#define STK3310_PS_MAX_VAL 0xFFFF47 48#define STK3310_DRIVER_NAME "stk3310"49#define STK3310_REGMAP_NAME "stk3310_regmap"50#define STK3310_EVENT "stk3310_event"51 52#define STK3310_SCALE_AVAILABLE "6.4 1.6 0.4 0.1"53 54#define STK3310_IT_AVAILABLE \55 "0.000185 0.000370 0.000741 0.001480 0.002960 0.005920 0.011840 " \56 "0.023680 0.047360 0.094720 0.189440 0.378880 0.757760 1.515520 " \57 "3.031040 6.062080"58 59#define STK3310_REGFIELD(name) \60 do { \61 data->reg_##name = \62 devm_regmap_field_alloc(&client->dev, regmap, \63 stk3310_reg_field_##name); \64 if (IS_ERR(data->reg_##name)) { \65 dev_err(&client->dev, "reg field alloc failed.\n"); \66 return PTR_ERR(data->reg_##name); \67 } \68 } while (0)69 70static const struct reg_field stk3310_reg_field_state =71 REG_FIELD(STK3310_REG_STATE, 0, 2);72static const struct reg_field stk3310_reg_field_als_gain =73 REG_FIELD(STK3310_REG_ALSCTRL, 4, 5);74static const struct reg_field stk3310_reg_field_ps_gain =75 REG_FIELD(STK3310_REG_PSCTRL, 4, 5);76static const struct reg_field stk3310_reg_field_als_it =77 REG_FIELD(STK3310_REG_ALSCTRL, 0, 3);78static const struct reg_field stk3310_reg_field_ps_it =79 REG_FIELD(STK3310_REG_PSCTRL, 0, 3);80static const struct reg_field stk3310_reg_field_int_ps =81 REG_FIELD(STK3310_REG_INT, 0, 2);82static const struct reg_field stk3310_reg_field_flag_psint =83 REG_FIELD(STK3310_REG_FLAG, 4, 4);84static const struct reg_field stk3310_reg_field_flag_nf =85 REG_FIELD(STK3310_REG_FLAG, 0, 0);86 87static const u8 stk3310_chip_ids[] = {88 STK3013_CHIP_ID_VAL,89 STK3310_CHIP_ID_VAL,90 STK3311A_CHIP_ID_VAL,91 STK3311S34_CHIP_ID_VAL,92 STK3311X_CHIP_ID_VAL,93 STK3311_CHIP_ID_VAL,94 STK3335_CHIP_ID_VAL,95};96 97/* Estimate maximum proximity values with regard to measurement scale. */98static const int stk3310_ps_max[4] = {99 STK3310_PS_MAX_VAL / 640,100 STK3310_PS_MAX_VAL / 160,101 STK3310_PS_MAX_VAL / 40,102 STK3310_PS_MAX_VAL / 10103};104 105static const int stk3310_scale_table[][2] = {106 {6, 400000}, {1, 600000}, {0, 400000}, {0, 100000}107};108 109/* Integration time in seconds, microseconds */110static const int stk3310_it_table[][2] = {111 {0, 185}, {0, 370}, {0, 741}, {0, 1480},112 {0, 2960}, {0, 5920}, {0, 11840}, {0, 23680},113 {0, 47360}, {0, 94720}, {0, 189440}, {0, 378880},114 {0, 757760}, {1, 515520}, {3, 31040}, {6, 62080},115};116 117struct stk3310_data {118 struct i2c_client *client;119 struct mutex lock;120 bool als_enabled;121 bool ps_enabled;122 uint32_t ps_near_level;123 u64 timestamp;124 struct regmap *regmap;125 struct regmap_field *reg_state;126 struct regmap_field *reg_als_gain;127 struct regmap_field *reg_ps_gain;128 struct regmap_field *reg_als_it;129 struct regmap_field *reg_ps_it;130 struct regmap_field *reg_int_ps;131 struct regmap_field *reg_flag_psint;132 struct regmap_field *reg_flag_nf;133};134 135static const struct iio_event_spec stk3310_events[] = {136 /* Proximity event */137 {138 .type = IIO_EV_TYPE_THRESH,139 .dir = IIO_EV_DIR_RISING,140 .mask_separate = BIT(IIO_EV_INFO_VALUE) |141 BIT(IIO_EV_INFO_ENABLE),142 },143 /* Out-of-proximity event */144 {145 .type = IIO_EV_TYPE_THRESH,146 .dir = IIO_EV_DIR_FALLING,147 .mask_separate = BIT(IIO_EV_INFO_VALUE) |148 BIT(IIO_EV_INFO_ENABLE),149 },150};151 152static ssize_t stk3310_read_near_level(struct iio_dev *indio_dev,153 uintptr_t priv,154 const struct iio_chan_spec *chan,155 char *buf)156{157 struct stk3310_data *data = iio_priv(indio_dev);158 159 return sprintf(buf, "%u\n", data->ps_near_level);160}161 162static const struct iio_chan_spec_ext_info stk3310_ext_info[] = {163 {164 .name = "nearlevel",165 .shared = IIO_SEPARATE,166 .read = stk3310_read_near_level,167 },168 { /* sentinel */ }169};170 171static const struct iio_chan_spec stk3310_channels[] = {172 {173 .type = IIO_LIGHT,174 .info_mask_separate =175 BIT(IIO_CHAN_INFO_RAW) |176 BIT(IIO_CHAN_INFO_SCALE) |177 BIT(IIO_CHAN_INFO_INT_TIME),178 },179 {180 .type = IIO_PROXIMITY,181 .info_mask_separate =182 BIT(IIO_CHAN_INFO_RAW) |183 BIT(IIO_CHAN_INFO_SCALE) |184 BIT(IIO_CHAN_INFO_INT_TIME),185 .event_spec = stk3310_events,186 .num_event_specs = ARRAY_SIZE(stk3310_events),187 .ext_info = stk3310_ext_info,188 }189};190 191static IIO_CONST_ATTR(in_illuminance_scale_available, STK3310_SCALE_AVAILABLE);192 193static IIO_CONST_ATTR(in_proximity_scale_available, STK3310_SCALE_AVAILABLE);194 195static IIO_CONST_ATTR(in_illuminance_integration_time_available,196 STK3310_IT_AVAILABLE);197 198static IIO_CONST_ATTR(in_proximity_integration_time_available,199 STK3310_IT_AVAILABLE);200 201static struct attribute *stk3310_attributes[] = {202 &iio_const_attr_in_illuminance_scale_available.dev_attr.attr,203 &iio_const_attr_in_proximity_scale_available.dev_attr.attr,204 &iio_const_attr_in_illuminance_integration_time_available.dev_attr.attr,205 &iio_const_attr_in_proximity_integration_time_available.dev_attr.attr,206 NULL,207};208 209static const struct attribute_group stk3310_attribute_group = {210 .attrs = stk3310_attributes211};212 213static int stk3310_check_chip_id(const u8 chip_id)214{215 for (int i = 0; i < ARRAY_SIZE(stk3310_chip_ids); i++) {216 if (chip_id == stk3310_chip_ids[i])217 return 0;218 }219 220 return -ENODEV;221}222 223static int stk3310_get_index(const int table[][2], int table_size,224 int val, int val2)225{226 int i;227 228 for (i = 0; i < table_size; i++) {229 if (val == table[i][0] && val2 == table[i][1])230 return i;231 }232 233 return -EINVAL;234}235 236static int stk3310_read_event(struct iio_dev *indio_dev,237 const struct iio_chan_spec *chan,238 enum iio_event_type type,239 enum iio_event_direction dir,240 enum iio_event_info info,241 int *val, int *val2)242{243 u8 reg;244 __be16 buf;245 int ret;246 struct stk3310_data *data = iio_priv(indio_dev);247 248 if (info != IIO_EV_INFO_VALUE)249 return -EINVAL;250 251 /* Only proximity interrupts are implemented at the moment. */252 if (dir == IIO_EV_DIR_RISING)253 reg = STK3310_REG_THDH_PS;254 else if (dir == IIO_EV_DIR_FALLING)255 reg = STK3310_REG_THDL_PS;256 else257 return -EINVAL;258 259 mutex_lock(&data->lock);260 ret = regmap_bulk_read(data->regmap, reg, &buf, 2);261 mutex_unlock(&data->lock);262 if (ret < 0) {263 dev_err(&data->client->dev, "register read failed\n");264 return ret;265 }266 *val = be16_to_cpu(buf);267 268 return IIO_VAL_INT;269}270 271static int stk3310_write_event(struct iio_dev *indio_dev,272 const struct iio_chan_spec *chan,273 enum iio_event_type type,274 enum iio_event_direction dir,275 enum iio_event_info info,276 int val, int val2)277{278 u8 reg;279 __be16 buf;280 int ret;281 unsigned int index;282 struct stk3310_data *data = iio_priv(indio_dev);283 struct i2c_client *client = data->client;284 285 ret = regmap_field_read(data->reg_ps_gain, &index);286 if (ret < 0)287 return ret;288 289 if (val < 0 || val > stk3310_ps_max[index])290 return -EINVAL;291 292 if (dir == IIO_EV_DIR_RISING)293 reg = STK3310_REG_THDH_PS;294 else if (dir == IIO_EV_DIR_FALLING)295 reg = STK3310_REG_THDL_PS;296 else297 return -EINVAL;298 299 buf = cpu_to_be16(val);300 ret = regmap_bulk_write(data->regmap, reg, &buf, 2);301 if (ret < 0)302 dev_err(&client->dev, "failed to set PS threshold!\n");303 304 return ret;305}306 307static int stk3310_read_event_config(struct iio_dev *indio_dev,308 const struct iio_chan_spec *chan,309 enum iio_event_type type,310 enum iio_event_direction dir)311{312 unsigned int event_val;313 int ret;314 struct stk3310_data *data = iio_priv(indio_dev);315 316 ret = regmap_field_read(data->reg_int_ps, &event_val);317 if (ret < 0)318 return ret;319 320 return event_val;321}322 323static int stk3310_write_event_config(struct iio_dev *indio_dev,324 const struct iio_chan_spec *chan,325 enum iio_event_type type,326 enum iio_event_direction dir,327 int state)328{329 int ret;330 struct stk3310_data *data = iio_priv(indio_dev);331 struct i2c_client *client = data->client;332 333 if (state < 0 || state > 7)334 return -EINVAL;335 336 /* Set INT_PS value */337 mutex_lock(&data->lock);338 ret = regmap_field_write(data->reg_int_ps, state);339 if (ret < 0)340 dev_err(&client->dev, "failed to set interrupt mode\n");341 mutex_unlock(&data->lock);342 343 return ret;344}345 346static int stk3310_read_raw(struct iio_dev *indio_dev,347 struct iio_chan_spec const *chan,348 int *val, int *val2, long mask)349{350 u8 reg;351 __be16 buf;352 int ret;353 unsigned int index;354 struct stk3310_data *data = iio_priv(indio_dev);355 struct i2c_client *client = data->client;356 357 if (chan->type != IIO_LIGHT && chan->type != IIO_PROXIMITY)358 return -EINVAL;359 360 switch (mask) {361 case IIO_CHAN_INFO_RAW:362 if (chan->type == IIO_LIGHT)363 reg = STK3310_REG_ALS_DATA_MSB;364 else365 reg = STK3310_REG_PS_DATA_MSB;366 367 mutex_lock(&data->lock);368 ret = regmap_bulk_read(data->regmap, reg, &buf, 2);369 if (ret < 0) {370 dev_err(&client->dev, "register read failed\n");371 mutex_unlock(&data->lock);372 return ret;373 }374 *val = be16_to_cpu(buf);375 mutex_unlock(&data->lock);376 return IIO_VAL_INT;377 case IIO_CHAN_INFO_INT_TIME:378 if (chan->type == IIO_LIGHT)379 ret = regmap_field_read(data->reg_als_it, &index);380 else381 ret = regmap_field_read(data->reg_ps_it, &index);382 if (ret < 0)383 return ret;384 385 *val = stk3310_it_table[index][0];386 *val2 = stk3310_it_table[index][1];387 return IIO_VAL_INT_PLUS_MICRO;388 case IIO_CHAN_INFO_SCALE:389 if (chan->type == IIO_LIGHT)390 ret = regmap_field_read(data->reg_als_gain, &index);391 else392 ret = regmap_field_read(data->reg_ps_gain, &index);393 if (ret < 0)394 return ret;395 396 *val = stk3310_scale_table[index][0];397 *val2 = stk3310_scale_table[index][1];398 return IIO_VAL_INT_PLUS_MICRO;399 }400 401 return -EINVAL;402}403 404static int stk3310_write_raw(struct iio_dev *indio_dev,405 struct iio_chan_spec const *chan,406 int val, int val2, long mask)407{408 int ret;409 int index;410 struct stk3310_data *data = iio_priv(indio_dev);411 412 if (chan->type != IIO_LIGHT && chan->type != IIO_PROXIMITY)413 return -EINVAL;414 415 switch (mask) {416 case IIO_CHAN_INFO_INT_TIME:417 index = stk3310_get_index(stk3310_it_table,418 ARRAY_SIZE(stk3310_it_table),419 val, val2);420 if (index < 0)421 return -EINVAL;422 mutex_lock(&data->lock);423 if (chan->type == IIO_LIGHT)424 ret = regmap_field_write(data->reg_als_it, index);425 else426 ret = regmap_field_write(data->reg_ps_it, index);427 if (ret < 0)428 dev_err(&data->client->dev,429 "sensor configuration failed\n");430 mutex_unlock(&data->lock);431 return ret;432 433 case IIO_CHAN_INFO_SCALE:434 index = stk3310_get_index(stk3310_scale_table,435 ARRAY_SIZE(stk3310_scale_table),436 val, val2);437 if (index < 0)438 return -EINVAL;439 mutex_lock(&data->lock);440 if (chan->type == IIO_LIGHT)441 ret = regmap_field_write(data->reg_als_gain, index);442 else443 ret = regmap_field_write(data->reg_ps_gain, index);444 if (ret < 0)445 dev_err(&data->client->dev,446 "sensor configuration failed\n");447 mutex_unlock(&data->lock);448 return ret;449 }450 451 return -EINVAL;452}453 454static const struct iio_info stk3310_info = {455 .read_raw = stk3310_read_raw,456 .write_raw = stk3310_write_raw,457 .attrs = &stk3310_attribute_group,458 .read_event_value = stk3310_read_event,459 .write_event_value = stk3310_write_event,460 .read_event_config = stk3310_read_event_config,461 .write_event_config = stk3310_write_event_config,462};463 464static int stk3310_set_state(struct stk3310_data *data, u8 state)465{466 int ret;467 struct i2c_client *client = data->client;468 469 /* 3-bit state; 0b100 is not supported. */470 if (state > 7 || state == 4)471 return -EINVAL;472 473 mutex_lock(&data->lock);474 ret = regmap_field_write(data->reg_state, state);475 if (ret < 0) {476 dev_err(&client->dev, "failed to change sensor state\n");477 } else if (state != STK3310_STATE_STANDBY) {478 /* Don't reset the 'enabled' flags if we're going in standby */479 data->ps_enabled = !!(state & STK3310_STATE_EN_PS);480 data->als_enabled = !!(state & STK3310_STATE_EN_ALS);481 }482 mutex_unlock(&data->lock);483 484 return ret;485}486 487static int stk3310_init(struct iio_dev *indio_dev)488{489 int ret;490 int chipid;491 u8 state;492 struct stk3310_data *data = iio_priv(indio_dev);493 struct i2c_client *client = data->client;494 495 ret = regmap_read(data->regmap, STK3310_REG_ID, &chipid);496 if (ret < 0)497 return ret;498 499 ret = stk3310_check_chip_id(chipid);500 if (ret < 0)501 dev_info(&client->dev, "new unknown chip id: 0x%x\n", chipid);502 503 state = STK3310_STATE_EN_ALS | STK3310_STATE_EN_PS;504 ret = stk3310_set_state(data, state);505 if (ret < 0) {506 dev_err(&client->dev, "failed to enable sensor");507 return ret;508 }509 510 /* Enable PS interrupts */511 ret = regmap_field_write(data->reg_int_ps, STK3310_PSINT_EN);512 if (ret < 0)513 dev_err(&client->dev, "failed to enable interrupts!\n");514 515 return ret;516}517 518static bool stk3310_is_volatile_reg(struct device *dev, unsigned int reg)519{520 switch (reg) {521 case STK3310_REG_ALS_DATA_MSB:522 case STK3310_REG_ALS_DATA_LSB:523 case STK3310_REG_PS_DATA_LSB:524 case STK3310_REG_PS_DATA_MSB:525 case STK3310_REG_FLAG:526 return true;527 default:528 return false;529 }530}531 532static const struct regmap_config stk3310_regmap_config = {533 .name = STK3310_REGMAP_NAME,534 .reg_bits = 8,535 .val_bits = 8,536 .max_register = STK3310_MAX_REG,537 .cache_type = REGCACHE_RBTREE,538 .volatile_reg = stk3310_is_volatile_reg,539};540 541static int stk3310_regmap_init(struct stk3310_data *data)542{543 struct regmap *regmap;544 struct i2c_client *client;545 546 client = data->client;547 regmap = devm_regmap_init_i2c(client, &stk3310_regmap_config);548 if (IS_ERR(regmap)) {549 dev_err(&client->dev, "regmap initialization failed.\n");550 return PTR_ERR(regmap);551 }552 data->regmap = regmap;553 554 STK3310_REGFIELD(state);555 STK3310_REGFIELD(als_gain);556 STK3310_REGFIELD(ps_gain);557 STK3310_REGFIELD(als_it);558 STK3310_REGFIELD(ps_it);559 STK3310_REGFIELD(int_ps);560 STK3310_REGFIELD(flag_psint);561 STK3310_REGFIELD(flag_nf);562 563 return 0;564}565 566static irqreturn_t stk3310_irq_handler(int irq, void *private)567{568 struct iio_dev *indio_dev = private;569 struct stk3310_data *data = iio_priv(indio_dev);570 571 data->timestamp = iio_get_time_ns(indio_dev);572 573 return IRQ_WAKE_THREAD;574}575 576static irqreturn_t stk3310_irq_event_handler(int irq, void *private)577{578 int ret;579 unsigned int dir;580 u64 event;581 582 struct iio_dev *indio_dev = private;583 struct stk3310_data *data = iio_priv(indio_dev);584 585 /* Read FLAG_NF to figure out what threshold has been met. */586 mutex_lock(&data->lock);587 ret = regmap_field_read(data->reg_flag_nf, &dir);588 if (ret < 0) {589 dev_err(&data->client->dev, "register read failed: %d\n", ret);590 goto out;591 }592 event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1,593 IIO_EV_TYPE_THRESH,594 (dir ? IIO_EV_DIR_FALLING :595 IIO_EV_DIR_RISING));596 iio_push_event(indio_dev, event, data->timestamp);597 598 /* Reset the interrupt flag */599 ret = regmap_field_write(data->reg_flag_psint, 0);600 if (ret < 0)601 dev_err(&data->client->dev, "failed to reset interrupts\n");602out:603 mutex_unlock(&data->lock);604 605 return IRQ_HANDLED;606}607 608static int stk3310_probe(struct i2c_client *client)609{610 int ret;611 struct iio_dev *indio_dev;612 struct stk3310_data *data;613 614 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));615 if (!indio_dev) {616 dev_err(&client->dev, "iio allocation failed!\n");617 return -ENOMEM;618 }619 620 data = iio_priv(indio_dev);621 data->client = client;622 i2c_set_clientdata(client, indio_dev);623 624 device_property_read_u32(&client->dev, "proximity-near-level",625 &data->ps_near_level);626 627 mutex_init(&data->lock);628 629 ret = stk3310_regmap_init(data);630 if (ret < 0)631 return ret;632 633 indio_dev->info = &stk3310_info;634 indio_dev->name = STK3310_DRIVER_NAME;635 indio_dev->modes = INDIO_DIRECT_MODE;636 indio_dev->channels = stk3310_channels;637 indio_dev->num_channels = ARRAY_SIZE(stk3310_channels);638 639 ret = stk3310_init(indio_dev);640 if (ret < 0)641 return ret;642 643 if (client->irq > 0) {644 ret = devm_request_threaded_irq(&client->dev, client->irq,645 stk3310_irq_handler,646 stk3310_irq_event_handler,647 IRQF_TRIGGER_FALLING |648 IRQF_ONESHOT,649 STK3310_EVENT, indio_dev);650 if (ret < 0) {651 dev_err(&client->dev, "request irq %d failed\n",652 client->irq);653 goto err_standby;654 }655 }656 657 ret = iio_device_register(indio_dev);658 if (ret < 0) {659 dev_err(&client->dev, "device_register failed\n");660 goto err_standby;661 }662 663 return 0;664 665err_standby:666 stk3310_set_state(data, STK3310_STATE_STANDBY);667 return ret;668}669 670static void stk3310_remove(struct i2c_client *client)671{672 struct iio_dev *indio_dev = i2c_get_clientdata(client);673 674 iio_device_unregister(indio_dev);675 stk3310_set_state(iio_priv(indio_dev), STK3310_STATE_STANDBY);676}677 678static int stk3310_suspend(struct device *dev)679{680 struct stk3310_data *data;681 682 data = iio_priv(i2c_get_clientdata(to_i2c_client(dev)));683 684 return stk3310_set_state(data, STK3310_STATE_STANDBY);685}686 687static int stk3310_resume(struct device *dev)688{689 u8 state = 0;690 struct stk3310_data *data;691 692 data = iio_priv(i2c_get_clientdata(to_i2c_client(dev)));693 if (data->ps_enabled)694 state |= STK3310_STATE_EN_PS;695 if (data->als_enabled)696 state |= STK3310_STATE_EN_ALS;697 698 return stk3310_set_state(data, state);699}700 701static DEFINE_SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend,702 stk3310_resume);703 704static const struct i2c_device_id stk3310_i2c_id[] = {705 { "STK3013" },706 { "STK3310" },707 { "STK3311" },708 { "STK3335" },709 {}710};711MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id);712 713static const struct acpi_device_id stk3310_acpi_id[] = {714 {"STK3013", 0},715 {"STK3310", 0},716 {"STK3311", 0},717 {}718};719 720MODULE_DEVICE_TABLE(acpi, stk3310_acpi_id);721 722static const struct of_device_id stk3310_of_match[] = {723 { .compatible = "sensortek,stk3013", },724 { .compatible = "sensortek,stk3310", },725 { .compatible = "sensortek,stk3311", },726 { .compatible = "sensortek,stk3335", },727 {}728};729MODULE_DEVICE_TABLE(of, stk3310_of_match);730 731static struct i2c_driver stk3310_driver = {732 .driver = {733 .name = "stk3310",734 .of_match_table = stk3310_of_match,735 .pm = pm_sleep_ptr(&stk3310_pm_ops),736 .acpi_match_table = stk3310_acpi_id,737 },738 .probe = stk3310_probe,739 .remove = stk3310_remove,740 .id_table = stk3310_i2c_id,741};742 743module_i2c_driver(stk3310_driver);744 745MODULE_AUTHOR("Tiberiu Breana <tiberiu.a.breana@intel.com>");746MODULE_DESCRIPTION("STK3310 Ambient Light and Proximity Sensor driver");747MODULE_LICENSE("GPL v2");748