| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * VCNL4035 Ambient Light and Proximity Sensor - 7-bit I2C slave address 0x60 |
| * |
| * Copyright (c) 2018, DENX Software Engineering GmbH |
| * Author: Parthiban Nallathambi <pn@denx.de> |
| * |
| * TODO: Proximity |
| */ |
| #include <linux/bitops.h> |
| #include <linux/i2c.h> |
| #include <linux/module.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/regmap.h> |
| |
| #include <linux/iio/buffer.h> |
| #include <linux/iio/events.h> |
| #include <linux/iio/iio.h> |
| #include <linux/iio/sysfs.h> |
| #include <linux/iio/trigger.h> |
| #include <linux/iio/trigger_consumer.h> |
| #include <linux/iio/triggered_buffer.h> |
| |
| #define VCNL4035_DRV_NAME "vcnl4035" |
| #define VCNL4035_IRQ_NAME "vcnl4035_event" |
| #define VCNL4035_REGMAP_NAME "vcnl4035_regmap" |
| |
| /* Device registers */ |
| #define VCNL4035_ALS_CONF 0x00 |
| #define VCNL4035_ALS_THDH 0x01 |
| #define VCNL4035_ALS_THDL 0x02 |
| #define VCNL4035_ALS_DATA 0x0B |
| #define VCNL4035_WHITE_DATA 0x0C |
| #define VCNL4035_INT_FLAG 0x0D |
| #define VCNL4035_DEV_ID 0x0E |
| |
| /* Register masks */ |
| #define VCNL4035_MODE_ALS_MASK BIT(0) |
| #define VCNL4035_MODE_ALS_WHITE_CHAN BIT(8) |
| #define VCNL4035_MODE_ALS_INT_MASK BIT(1) |
| #define VCNL4035_ALS_IT_MASK GENMASK(7, 5) |
| #define VCNL4035_ALS_PERS_MASK GENMASK(3, 2) |
| #define VCNL4035_INT_ALS_IF_H_MASK BIT(12) |
| #define VCNL4035_INT_ALS_IF_L_MASK BIT(13) |
| |
| /* Default values */ |
| #define VCNL4035_MODE_ALS_ENABLE BIT(0) |
| #define VCNL4035_MODE_ALS_DISABLE 0x00 |
| #define VCNL4035_MODE_ALS_INT_ENABLE BIT(1) |
| #define VCNL4035_MODE_ALS_INT_DISABLE 0 |
| #define VCNL4035_DEV_ID_VAL 0x80 |
| #define VCNL4035_ALS_IT_DEFAULT 0x01 |
| #define VCNL4035_ALS_PERS_DEFAULT 0x00 |
| #define VCNL4035_ALS_THDH_DEFAULT 5000 |
| #define VCNL4035_ALS_THDL_DEFAULT 100 |
| #define VCNL4035_SLEEP_DELAY_MS 2000 |
| |
| struct vcnl4035_data { |
| struct i2c_client *client; |
| struct regmap *regmap; |
| unsigned int als_it_val; |
| unsigned int als_persistence; |
| unsigned int als_thresh_low; |
| unsigned int als_thresh_high; |
| struct iio_trigger *drdy_trigger0; |
| }; |
| |
| static inline bool vcnl4035_is_triggered(struct vcnl4035_data *data) |
| { |
| int ret; |
| int reg; |
| |
| ret = regmap_read(data->regmap, VCNL4035_INT_FLAG, ®); |
| if (ret < 0) |
| return false; |
| |
| return !!(reg & |
| (VCNL4035_INT_ALS_IF_H_MASK | VCNL4035_INT_ALS_IF_L_MASK)); |
| } |
| |
| static irqreturn_t vcnl4035_drdy_irq_thread(int irq, void *private) |
| { |
| struct iio_dev *indio_dev = private; |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| |
| if (vcnl4035_is_triggered(data)) { |
| iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_LIGHT, |
| 0, |
| IIO_EV_TYPE_THRESH, |
| IIO_EV_DIR_EITHER), |
| iio_get_time_ns(indio_dev)); |
| iio_trigger_poll_chained(data->drdy_trigger0); |
| return IRQ_HANDLED; |
| } |
| |
| return IRQ_NONE; |
| } |
| |
| /* Triggered buffer */ |
| static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p) |
| { |
| struct iio_poll_func *pf = p; |
| struct iio_dev *indio_dev = pf->indio_dev; |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| /* Ensure naturally aligned timestamp */ |
| u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)] __aligned(8); |
| int ret; |
| |
| ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer); |
| if (ret < 0) { |
| dev_err(&data->client->dev, |
| "Trigger consumer can't read from sensor.\n"); |
| goto fail_read; |
| } |
| iio_push_to_buffers_with_timestamp(indio_dev, buffer, |
| iio_get_time_ns(indio_dev)); |
| |
| fail_read: |
| iio_trigger_notify_done(indio_dev->trig); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static int vcnl4035_als_drdy_set_state(struct iio_trigger *trigger, |
| bool enable_drdy) |
| { |
| struct iio_dev *indio_dev = iio_trigger_get_drvdata(trigger); |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| int val = enable_drdy ? VCNL4035_MODE_ALS_INT_ENABLE : |
| VCNL4035_MODE_ALS_INT_DISABLE; |
| |
| return regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_MODE_ALS_INT_MASK, |
| val); |
| } |
| |
| static const struct iio_trigger_ops vcnl4035_trigger_ops = { |
| .validate_device = iio_trigger_validate_own_device, |
| .set_trigger_state = vcnl4035_als_drdy_set_state, |
| }; |
| |
| static int vcnl4035_set_pm_runtime_state(struct vcnl4035_data *data, bool on) |
| { |
| int ret; |
| struct device *dev = &data->client->dev; |
| |
| if (on) { |
| ret = pm_runtime_get_sync(dev); |
| if (ret < 0) |
| pm_runtime_put_noidle(dev); |
| } else { |
| pm_runtime_mark_last_busy(dev); |
| ret = pm_runtime_put_autosuspend(dev); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * Device IT INT Time (ms) Scale (lux/step) |
| * 000 50 0.064 |
| * 001 100 0.032 |
| * 010 200 0.016 |
| * 100 400 0.008 |
| * 101 - 111 800 0.004 |
| * Values are proportional, so ALS INT is selected for input due to |
| * simplicity reason. Integration time value and scaling is |
| * calculated based on device INT value |
| * |
| * Raw value needs to be scaled using ALS steps |
| */ |
| static int vcnl4035_read_raw(struct iio_dev *indio_dev, |
| struct iio_chan_spec const *chan, int *val, |
| int *val2, long mask) |
| { |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| int ret; |
| int raw_data; |
| unsigned int reg; |
| |
| switch (mask) { |
| case IIO_CHAN_INFO_RAW: |
| ret = vcnl4035_set_pm_runtime_state(data, true); |
| if (ret < 0) |
| return ret; |
| |
| ret = iio_device_claim_direct_mode(indio_dev); |
| if (!ret) { |
| if (chan->channel) |
| reg = VCNL4035_ALS_DATA; |
| else |
| reg = VCNL4035_WHITE_DATA; |
| ret = regmap_read(data->regmap, reg, &raw_data); |
| iio_device_release_direct_mode(indio_dev); |
| if (!ret) { |
| *val = raw_data; |
| ret = IIO_VAL_INT; |
| } |
| } |
| vcnl4035_set_pm_runtime_state(data, false); |
| return ret; |
| case IIO_CHAN_INFO_INT_TIME: |
| *val = 50; |
| if (data->als_it_val) |
| *val = data->als_it_val * 100; |
| return IIO_VAL_INT; |
| case IIO_CHAN_INFO_SCALE: |
| *val = 64; |
| if (!data->als_it_val) |
| *val2 = 1000; |
| else |
| *val2 = data->als_it_val * 2 * 1000; |
| return IIO_VAL_FRACTIONAL; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int vcnl4035_write_raw(struct iio_dev *indio_dev, |
| struct iio_chan_spec const *chan, |
| int val, int val2, long mask) |
| { |
| int ret; |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| |
| switch (mask) { |
| case IIO_CHAN_INFO_INT_TIME: |
| if (val <= 0 || val > 800) |
| return -EINVAL; |
| |
| ret = vcnl4035_set_pm_runtime_state(data, true); |
| if (ret < 0) |
| return ret; |
| |
| ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_ALS_IT_MASK, |
| val / 100); |
| if (!ret) |
| data->als_it_val = val / 100; |
| |
| vcnl4035_set_pm_runtime_state(data, false); |
| return ret; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| /* No direct ABI for persistence and threshold, so eventing */ |
| static int vcnl4035_read_thresh(struct iio_dev *indio_dev, |
| const struct iio_chan_spec *chan, enum iio_event_type type, |
| enum iio_event_direction dir, enum iio_event_info info, |
| int *val, int *val2) |
| { |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| |
| switch (info) { |
| case IIO_EV_INFO_VALUE: |
| switch (dir) { |
| case IIO_EV_DIR_RISING: |
| *val = data->als_thresh_high; |
| return IIO_VAL_INT; |
| case IIO_EV_DIR_FALLING: |
| *val = data->als_thresh_low; |
| return IIO_VAL_INT; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case IIO_EV_INFO_PERIOD: |
| *val = data->als_persistence; |
| return IIO_VAL_INT; |
| default: |
| return -EINVAL; |
| } |
| |
| } |
| |
| static int vcnl4035_write_thresh(struct iio_dev *indio_dev, |
| const struct iio_chan_spec *chan, enum iio_event_type type, |
| enum iio_event_direction dir, enum iio_event_info info, int val, |
| int val2) |
| { |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| int ret; |
| |
| switch (info) { |
| case IIO_EV_INFO_VALUE: |
| /* 16 bit threshold range 0 - 65535 */ |
| if (val < 0 || val > 65535) |
| return -EINVAL; |
| if (dir == IIO_EV_DIR_RISING) { |
| if (val < data->als_thresh_low) |
| return -EINVAL; |
| ret = regmap_write(data->regmap, VCNL4035_ALS_THDH, |
| val); |
| if (ret) |
| return ret; |
| data->als_thresh_high = val; |
| } else { |
| if (val > data->als_thresh_high) |
| return -EINVAL; |
| ret = regmap_write(data->regmap, VCNL4035_ALS_THDL, |
| val); |
| if (ret) |
| return ret; |
| data->als_thresh_low = val; |
| } |
| return ret; |
| case IIO_EV_INFO_PERIOD: |
| /* allow only 1 2 4 8 as persistence value */ |
| if (val < 0 || val > 8 || hweight8(val) != 1) |
| return -EINVAL; |
| ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_ALS_PERS_MASK, val); |
| if (!ret) |
| data->als_persistence = val; |
| return ret; |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static IIO_CONST_ATTR_INT_TIME_AVAIL("50 100 200 400 800"); |
| |
| static struct attribute *vcnl4035_attributes[] = { |
| &iio_const_attr_integration_time_available.dev_attr.attr, |
| NULL, |
| }; |
| |
| static const struct attribute_group vcnl4035_attribute_group = { |
| .attrs = vcnl4035_attributes, |
| }; |
| |
| static const struct iio_info vcnl4035_info = { |
| .read_raw = vcnl4035_read_raw, |
| .write_raw = vcnl4035_write_raw, |
| .read_event_value = vcnl4035_read_thresh, |
| .write_event_value = vcnl4035_write_thresh, |
| .attrs = &vcnl4035_attribute_group, |
| }; |
| |
| static const struct iio_event_spec vcnl4035_event_spec[] = { |
| { |
| .type = IIO_EV_TYPE_THRESH, |
| .dir = IIO_EV_DIR_RISING, |
| .mask_separate = BIT(IIO_EV_INFO_VALUE), |
| }, { |
| .type = IIO_EV_TYPE_THRESH, |
| .dir = IIO_EV_DIR_FALLING, |
| .mask_separate = BIT(IIO_EV_INFO_VALUE), |
| }, { |
| .type = IIO_EV_TYPE_THRESH, |
| .dir = IIO_EV_DIR_EITHER, |
| .mask_separate = BIT(IIO_EV_INFO_PERIOD), |
| }, |
| }; |
| |
| enum vcnl4035_scan_index_order { |
| VCNL4035_CHAN_INDEX_LIGHT, |
| VCNL4035_CHAN_INDEX_WHITE_LED, |
| }; |
| |
| static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = { |
| .validate_scan_mask = &iio_validate_scan_mask_onehot, |
| }; |
| |
| static const struct iio_chan_spec vcnl4035_channels[] = { |
| { |
| .type = IIO_LIGHT, |
| .channel = 0, |
| .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | |
| BIT(IIO_CHAN_INFO_INT_TIME) | |
| BIT(IIO_CHAN_INFO_SCALE), |
| .event_spec = vcnl4035_event_spec, |
| .num_event_specs = ARRAY_SIZE(vcnl4035_event_spec), |
| .scan_index = VCNL4035_CHAN_INDEX_LIGHT, |
| .scan_type = { |
| .sign = 'u', |
| .realbits = 16, |
| .storagebits = 16, |
| .endianness = IIO_LE, |
| }, |
| }, |
| { |
| .type = IIO_INTENSITY, |
| .channel = 1, |
| .modified = 1, |
| .channel2 = IIO_MOD_LIGHT_BOTH, |
| .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), |
| .scan_index = VCNL4035_CHAN_INDEX_WHITE_LED, |
| .scan_type = { |
| .sign = 'u', |
| .realbits = 16, |
| .storagebits = 16, |
| .endianness = IIO_LE, |
| }, |
| }, |
| }; |
| |
| static int vcnl4035_set_als_power_state(struct vcnl4035_data *data, u8 status) |
| { |
| return regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_MODE_ALS_MASK, |
| status); |
| } |
| |
| static int vcnl4035_init(struct vcnl4035_data *data) |
| { |
| int ret; |
| int id; |
| |
| ret = regmap_read(data->regmap, VCNL4035_DEV_ID, &id); |
| if (ret < 0) { |
| dev_err(&data->client->dev, "Failed to read DEV_ID register\n"); |
| return ret; |
| } |
| |
| if (id != VCNL4035_DEV_ID_VAL) { |
| dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n", |
| id, VCNL4035_DEV_ID_VAL); |
| return -ENODEV; |
| } |
| |
| ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_ENABLE); |
| if (ret < 0) |
| return ret; |
| |
| /* ALS white channel enable */ |
| ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_MODE_ALS_WHITE_CHAN, |
| 1); |
| if (ret) { |
| dev_err(&data->client->dev, "set white channel enable %d\n", |
| ret); |
| return ret; |
| } |
| |
| /* set default integration time - 100 ms for ALS */ |
| ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_ALS_IT_MASK, |
| VCNL4035_ALS_IT_DEFAULT); |
| if (ret) { |
| dev_err(&data->client->dev, "set default ALS IT returned %d\n", |
| ret); |
| return ret; |
| } |
| data->als_it_val = VCNL4035_ALS_IT_DEFAULT; |
| |
| /* set default persistence time - 1 for ALS */ |
| ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF, |
| VCNL4035_ALS_PERS_MASK, |
| VCNL4035_ALS_PERS_DEFAULT); |
| if (ret) { |
| dev_err(&data->client->dev, "set default PERS returned %d\n", |
| ret); |
| return ret; |
| } |
| data->als_persistence = VCNL4035_ALS_PERS_DEFAULT; |
| |
| /* set default HIGH threshold for ALS */ |
| ret = regmap_write(data->regmap, VCNL4035_ALS_THDH, |
| VCNL4035_ALS_THDH_DEFAULT); |
| if (ret) { |
| dev_err(&data->client->dev, "set default THDH returned %d\n", |
| ret); |
| return ret; |
| } |
| data->als_thresh_high = VCNL4035_ALS_THDH_DEFAULT; |
| |
| /* set default LOW threshold for ALS */ |
| ret = regmap_write(data->regmap, VCNL4035_ALS_THDL, |
| VCNL4035_ALS_THDL_DEFAULT); |
| if (ret) { |
| dev_err(&data->client->dev, "set default THDL returned %d\n", |
| ret); |
| return ret; |
| } |
| data->als_thresh_low = VCNL4035_ALS_THDL_DEFAULT; |
| |
| return 0; |
| } |
| |
| static bool vcnl4035_is_volatile_reg(struct device *dev, unsigned int reg) |
| { |
| switch (reg) { |
| case VCNL4035_ALS_CONF: |
| case VCNL4035_DEV_ID: |
| return false; |
| default: |
| return true; |
| } |
| } |
| |
| static const struct regmap_config vcnl4035_regmap_config = { |
| .name = VCNL4035_REGMAP_NAME, |
| .reg_bits = 8, |
| .val_bits = 16, |
| .max_register = VCNL4035_DEV_ID, |
| .cache_type = REGCACHE_RBTREE, |
| .volatile_reg = vcnl4035_is_volatile_reg, |
| .val_format_endian = REGMAP_ENDIAN_LITTLE, |
| }; |
| |
| static int vcnl4035_probe_trigger(struct iio_dev *indio_dev) |
| { |
| int ret; |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| |
| data->drdy_trigger0 = devm_iio_trigger_alloc( |
| indio_dev->dev.parent, |
| "%s-dev%d", indio_dev->name, indio_dev->id); |
| if (!data->drdy_trigger0) |
| return -ENOMEM; |
| |
| data->drdy_trigger0->dev.parent = indio_dev->dev.parent; |
| data->drdy_trigger0->ops = &vcnl4035_trigger_ops; |
| iio_trigger_set_drvdata(data->drdy_trigger0, indio_dev); |
| ret = devm_iio_trigger_register(indio_dev->dev.parent, |
| data->drdy_trigger0); |
| if (ret) { |
| dev_err(&data->client->dev, "iio trigger register failed\n"); |
| return ret; |
| } |
| |
| /* Trigger setup */ |
| ret = devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev, |
| NULL, vcnl4035_trigger_consumer_handler, |
| &iio_triggered_buffer_setup_ops); |
| if (ret < 0) { |
| dev_err(&data->client->dev, "iio triggered buffer setup failed\n"); |
| return ret; |
| } |
| |
| /* IRQ to trigger mapping */ |
| ret = devm_request_threaded_irq(&data->client->dev, data->client->irq, |
| NULL, vcnl4035_drdy_irq_thread, |
| IRQF_TRIGGER_LOW | IRQF_ONESHOT, |
| VCNL4035_IRQ_NAME, indio_dev); |
| if (ret < 0) |
| dev_err(&data->client->dev, "request irq %d for trigger0 failed\n", |
| data->client->irq); |
| return ret; |
| } |
| |
| static int vcnl4035_probe(struct i2c_client *client, |
| const struct i2c_device_id *id) |
| { |
| struct vcnl4035_data *data; |
| struct iio_dev *indio_dev; |
| struct regmap *regmap; |
| int ret; |
| |
| indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); |
| if (!indio_dev) |
| return -ENOMEM; |
| |
| regmap = devm_regmap_init_i2c(client, &vcnl4035_regmap_config); |
| if (IS_ERR(regmap)) { |
| dev_err(&client->dev, "regmap_init failed!\n"); |
| return PTR_ERR(regmap); |
| } |
| |
| data = iio_priv(indio_dev); |
| i2c_set_clientdata(client, indio_dev); |
| data->client = client; |
| data->regmap = regmap; |
| |
| indio_dev->dev.parent = &client->dev; |
| indio_dev->info = &vcnl4035_info; |
| indio_dev->name = VCNL4035_DRV_NAME; |
| indio_dev->channels = vcnl4035_channels; |
| indio_dev->num_channels = ARRAY_SIZE(vcnl4035_channels); |
| indio_dev->modes = INDIO_DIRECT_MODE; |
| |
| ret = vcnl4035_init(data); |
| if (ret < 0) { |
| dev_err(&client->dev, "vcnl4035 chip init failed\n"); |
| return ret; |
| } |
| |
| if (client->irq > 0) { |
| ret = vcnl4035_probe_trigger(indio_dev); |
| if (ret < 0) { |
| dev_err(&client->dev, "vcnl4035 unable init trigger\n"); |
| goto fail_poweroff; |
| } |
| } |
| |
| ret = pm_runtime_set_active(&client->dev); |
| if (ret < 0) |
| goto fail_poweroff; |
| |
| ret = iio_device_register(indio_dev); |
| if (ret < 0) |
| goto fail_poweroff; |
| |
| pm_runtime_enable(&client->dev); |
| pm_runtime_set_autosuspend_delay(&client->dev, VCNL4035_SLEEP_DELAY_MS); |
| pm_runtime_use_autosuspend(&client->dev); |
| |
| return 0; |
| |
| fail_poweroff: |
| vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_DISABLE); |
| return ret; |
| } |
| |
| static int vcnl4035_remove(struct i2c_client *client) |
| { |
| struct iio_dev *indio_dev = i2c_get_clientdata(client); |
| |
| pm_runtime_dont_use_autosuspend(&client->dev); |
| pm_runtime_disable(&client->dev); |
| iio_device_unregister(indio_dev); |
| pm_runtime_set_suspended(&client->dev); |
| |
| return vcnl4035_set_als_power_state(iio_priv(indio_dev), |
| VCNL4035_MODE_ALS_DISABLE); |
| } |
| |
| static int __maybe_unused vcnl4035_runtime_suspend(struct device *dev) |
| { |
| struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| int ret; |
| |
| ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_DISABLE); |
| regcache_mark_dirty(data->regmap); |
| |
| return ret; |
| } |
| |
| static int __maybe_unused vcnl4035_runtime_resume(struct device *dev) |
| { |
| struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); |
| struct vcnl4035_data *data = iio_priv(indio_dev); |
| int ret; |
| |
| regcache_sync(data->regmap); |
| ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_ENABLE); |
| if (ret < 0) |
| return ret; |
| |
| /* wait for 1 ALS integration cycle */ |
| msleep(data->als_it_val * 100); |
| |
| return 0; |
| } |
| |
| static const struct dev_pm_ops vcnl4035_pm_ops = { |
| SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, |
| pm_runtime_force_resume) |
| SET_RUNTIME_PM_OPS(vcnl4035_runtime_suspend, |
| vcnl4035_runtime_resume, NULL) |
| }; |
| |
| static const struct of_device_id vcnl4035_of_match[] = { |
| { .compatible = "vishay,vcnl4035", }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, vcnl4035_of_match); |
| |
| static struct i2c_driver vcnl4035_driver = { |
| .driver = { |
| .name = VCNL4035_DRV_NAME, |
| .pm = &vcnl4035_pm_ops, |
| .of_match_table = vcnl4035_of_match, |
| }, |
| .probe = vcnl4035_probe, |
| .remove = vcnl4035_remove, |
| }; |
| |
| module_i2c_driver(vcnl4035_driver); |
| |
| MODULE_AUTHOR("Parthiban Nallathambi <pn@denx.de>"); |
| MODULE_DESCRIPTION("VCNL4035 Ambient Light Sensor driver"); |
| MODULE_LICENSE("GPL v2"); |