1c14dca07SEnric Balletbo i Serra /* 2c14dca07SEnric Balletbo i Serra * cros_ec_sensors - Driver for Chrome OS Embedded Controller sensors. 3c14dca07SEnric Balletbo i Serra * 4c14dca07SEnric Balletbo i Serra * Copyright (C) 2016 Google, Inc 5c14dca07SEnric Balletbo i Serra * 6c14dca07SEnric Balletbo i Serra * This software is licensed under the terms of the GNU General Public 7c14dca07SEnric Balletbo i Serra * License version 2, as published by the Free Software Foundation, and 8c14dca07SEnric Balletbo i Serra * may be copied, distributed, and modified under those terms. 9c14dca07SEnric Balletbo i Serra * 10c14dca07SEnric Balletbo i Serra * This program is distributed in the hope that it will be useful, 11c14dca07SEnric Balletbo i Serra * but WITHOUT ANY WARRANTY; without even the implied warranty of 12c14dca07SEnric Balletbo i Serra * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13c14dca07SEnric Balletbo i Serra * GNU General Public License for more details. 14c14dca07SEnric Balletbo i Serra * 15c14dca07SEnric Balletbo i Serra * This driver uses the cros-ec interface to communicate with the Chrome OS 16c14dca07SEnric Balletbo i Serra * EC about sensors data. Data access is presented through iio sysfs. 17c14dca07SEnric Balletbo i Serra */ 18c14dca07SEnric Balletbo i Serra 19c14dca07SEnric Balletbo i Serra #include <linux/delay.h> 20c14dca07SEnric Balletbo i Serra #include <linux/device.h> 21c14dca07SEnric Balletbo i Serra #include <linux/iio/buffer.h> 22c14dca07SEnric Balletbo i Serra #include <linux/iio/iio.h> 23c14dca07SEnric Balletbo i Serra #include <linux/iio/kfifo_buf.h> 24c14dca07SEnric Balletbo i Serra #include <linux/iio/trigger_consumer.h> 25c14dca07SEnric Balletbo i Serra #include <linux/iio/triggered_buffer.h> 26c14dca07SEnric Balletbo i Serra #include <linux/kernel.h> 27c14dca07SEnric Balletbo i Serra #include <linux/mfd/cros_ec.h> 28c14dca07SEnric Balletbo i Serra #include <linux/mfd/cros_ec_commands.h> 29c14dca07SEnric Balletbo i Serra #include <linux/module.h> 30c14dca07SEnric Balletbo i Serra #include <linux/platform_device.h> 31c14dca07SEnric Balletbo i Serra #include <linux/slab.h> 32c14dca07SEnric Balletbo i Serra #include <linux/sysfs.h> 33c14dca07SEnric Balletbo i Serra 34c14dca07SEnric Balletbo i Serra #include "cros_ec_sensors_core.h" 35c14dca07SEnric Balletbo i Serra 36c14dca07SEnric Balletbo i Serra #define CROS_EC_SENSORS_MAX_CHANNELS 4 37c14dca07SEnric Balletbo i Serra 38c14dca07SEnric Balletbo i Serra /* State data for ec_sensors iio driver. */ 39c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state { 40c14dca07SEnric Balletbo i Serra /* Shared by all sensors */ 41c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_core_state core; 42c14dca07SEnric Balletbo i Serra 43c14dca07SEnric Balletbo i Serra struct iio_chan_spec channels[CROS_EC_SENSORS_MAX_CHANNELS]; 44c14dca07SEnric Balletbo i Serra }; 45c14dca07SEnric Balletbo i Serra 46c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_read(struct iio_dev *indio_dev, 47c14dca07SEnric Balletbo i Serra struct iio_chan_spec const *chan, 48c14dca07SEnric Balletbo i Serra int *val, int *val2, long mask) 49c14dca07SEnric Balletbo i Serra { 50c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *st = iio_priv(indio_dev); 51c14dca07SEnric Balletbo i Serra s16 data = 0; 52c14dca07SEnric Balletbo i Serra s64 val64; 53c14dca07SEnric Balletbo i Serra int i; 54c14dca07SEnric Balletbo i Serra int ret = IIO_VAL_INT; 55c14dca07SEnric Balletbo i Serra int idx = chan->scan_index; 56c14dca07SEnric Balletbo i Serra 57c14dca07SEnric Balletbo i Serra mutex_lock(&st->core.cmd_lock); 58c14dca07SEnric Balletbo i Serra 59c14dca07SEnric Balletbo i Serra switch (mask) { 60c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_RAW: 61c14dca07SEnric Balletbo i Serra ret = st->core.read_ec_sensors_data(indio_dev, 1 << idx, &data); 62c14dca07SEnric Balletbo i Serra if (ret < 0) 63c14dca07SEnric Balletbo i Serra break; 64c14dca07SEnric Balletbo i Serra 65c14dca07SEnric Balletbo i Serra *val = data; 66c14dca07SEnric Balletbo i Serra break; 67c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_CALIBBIAS: 68c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; 69c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.flags = 0; 70c14dca07SEnric Balletbo i Serra 71c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0); 72c14dca07SEnric Balletbo i Serra if (ret < 0) 73c14dca07SEnric Balletbo i Serra break; 74c14dca07SEnric Balletbo i Serra 75c14dca07SEnric Balletbo i Serra /* Save values */ 76c14dca07SEnric Balletbo i Serra for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++) 77c14dca07SEnric Balletbo i Serra st->core.calib[i] = 78c14dca07SEnric Balletbo i Serra st->core.resp->sensor_offset.offset[i]; 79c14dca07SEnric Balletbo i Serra 80c14dca07SEnric Balletbo i Serra *val = st->core.calib[idx]; 81c14dca07SEnric Balletbo i Serra break; 82c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_SCALE: 83c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE; 84c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.data = EC_MOTION_SENSE_NO_VALUE; 85c14dca07SEnric Balletbo i Serra 86c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0); 87c14dca07SEnric Balletbo i Serra if (ret < 0) 88c14dca07SEnric Balletbo i Serra break; 89c14dca07SEnric Balletbo i Serra 90c14dca07SEnric Balletbo i Serra val64 = st->core.resp->sensor_range.ret; 91c14dca07SEnric Balletbo i Serra switch (st->core.type) { 92c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_ACCEL: 93c14dca07SEnric Balletbo i Serra /* 94c14dca07SEnric Balletbo i Serra * EC returns data in g, iio exepects m/s^2. 95c14dca07SEnric Balletbo i Serra * Do not use IIO_G_TO_M_S_2 to avoid precision loss. 96c14dca07SEnric Balletbo i Serra */ 97c14dca07SEnric Balletbo i Serra *val = div_s64(val64 * 980665, 10); 98c14dca07SEnric Balletbo i Serra *val2 = 10000 << (CROS_EC_SENSOR_BITS - 1); 99c14dca07SEnric Balletbo i Serra ret = IIO_VAL_FRACTIONAL; 100c14dca07SEnric Balletbo i Serra break; 101c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_GYRO: 102c14dca07SEnric Balletbo i Serra /* 103c14dca07SEnric Balletbo i Serra * EC returns data in dps, iio expects rad/s. 104c14dca07SEnric Balletbo i Serra * Do not use IIO_DEGREE_TO_RAD to avoid precision 105c14dca07SEnric Balletbo i Serra * loss. Round to the nearest integer. 106c14dca07SEnric Balletbo i Serra */ 107c14dca07SEnric Balletbo i Serra *val = div_s64(val64 * 314159 + 9000000ULL, 1000); 108c14dca07SEnric Balletbo i Serra *val2 = 18000 << (CROS_EC_SENSOR_BITS - 1); 109c14dca07SEnric Balletbo i Serra ret = IIO_VAL_FRACTIONAL; 110c14dca07SEnric Balletbo i Serra break; 111c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_MAG: 112c14dca07SEnric Balletbo i Serra /* 113c14dca07SEnric Balletbo i Serra * EC returns data in 16LSB / uT, 114c14dca07SEnric Balletbo i Serra * iio expects Gauss 115c14dca07SEnric Balletbo i Serra */ 116c14dca07SEnric Balletbo i Serra *val = val64; 117c14dca07SEnric Balletbo i Serra *val2 = 100 << (CROS_EC_SENSOR_BITS - 1); 118c14dca07SEnric Balletbo i Serra ret = IIO_VAL_FRACTIONAL; 119c14dca07SEnric Balletbo i Serra break; 120c14dca07SEnric Balletbo i Serra default: 121c14dca07SEnric Balletbo i Serra ret = -EINVAL; 122c14dca07SEnric Balletbo i Serra } 123c14dca07SEnric Balletbo i Serra break; 124c14dca07SEnric Balletbo i Serra default: 125c14dca07SEnric Balletbo i Serra ret = cros_ec_sensors_core_read(&st->core, chan, val, val2, 126c14dca07SEnric Balletbo i Serra mask); 127c14dca07SEnric Balletbo i Serra break; 128c14dca07SEnric Balletbo i Serra } 129c14dca07SEnric Balletbo i Serra mutex_unlock(&st->core.cmd_lock); 130c14dca07SEnric Balletbo i Serra 131c14dca07SEnric Balletbo i Serra return ret; 132c14dca07SEnric Balletbo i Serra } 133c14dca07SEnric Balletbo i Serra 134c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_write(struct iio_dev *indio_dev, 135c14dca07SEnric Balletbo i Serra struct iio_chan_spec const *chan, 136c14dca07SEnric Balletbo i Serra int val, int val2, long mask) 137c14dca07SEnric Balletbo i Serra { 138c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *st = iio_priv(indio_dev); 139c14dca07SEnric Balletbo i Serra int i; 140c14dca07SEnric Balletbo i Serra int ret = 0; 141c14dca07SEnric Balletbo i Serra int idx = chan->scan_index; 142c14dca07SEnric Balletbo i Serra 143c14dca07SEnric Balletbo i Serra mutex_lock(&st->core.cmd_lock); 144c14dca07SEnric Balletbo i Serra 145c14dca07SEnric Balletbo i Serra switch (mask) { 146c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_CALIBBIAS: 147c14dca07SEnric Balletbo i Serra st->core.calib[idx] = val; 148c14dca07SEnric Balletbo i Serra 149c14dca07SEnric Balletbo i Serra /* Send to EC for each axis, even if not complete */ 150c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_OFFSET; 151c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.flags = 152c14dca07SEnric Balletbo i Serra MOTION_SENSE_SET_OFFSET; 153c14dca07SEnric Balletbo i Serra for (i = CROS_EC_SENSOR_X; i < CROS_EC_SENSOR_MAX_AXIS; i++) 154c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.offset[i] = 155c14dca07SEnric Balletbo i Serra st->core.calib[i]; 156c14dca07SEnric Balletbo i Serra st->core.param.sensor_offset.temp = 157c14dca07SEnric Balletbo i Serra EC_MOTION_SENSE_INVALID_CALIB_TEMP; 158c14dca07SEnric Balletbo i Serra 159c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0); 160c14dca07SEnric Balletbo i Serra break; 161c14dca07SEnric Balletbo i Serra case IIO_CHAN_INFO_SCALE: 162c14dca07SEnric Balletbo i Serra if (st->core.type == MOTIONSENSE_TYPE_MAG) { 163c14dca07SEnric Balletbo i Serra ret = -EINVAL; 164c14dca07SEnric Balletbo i Serra break; 165c14dca07SEnric Balletbo i Serra } 166c14dca07SEnric Balletbo i Serra st->core.param.cmd = MOTIONSENSE_CMD_SENSOR_RANGE; 167c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.data = val; 168c14dca07SEnric Balletbo i Serra 169c14dca07SEnric Balletbo i Serra /* Always roundup, so caller gets at least what it asks for. */ 170c14dca07SEnric Balletbo i Serra st->core.param.sensor_range.roundup = 1; 171c14dca07SEnric Balletbo i Serra 172c14dca07SEnric Balletbo i Serra ret = cros_ec_motion_send_host_cmd(&st->core, 0); 173c14dca07SEnric Balletbo i Serra break; 174c14dca07SEnric Balletbo i Serra default: 175c14dca07SEnric Balletbo i Serra ret = cros_ec_sensors_core_write( 176c14dca07SEnric Balletbo i Serra &st->core, chan, val, val2, mask); 177c14dca07SEnric Balletbo i Serra break; 178c14dca07SEnric Balletbo i Serra } 179c14dca07SEnric Balletbo i Serra 180c14dca07SEnric Balletbo i Serra mutex_unlock(&st->core.cmd_lock); 181c14dca07SEnric Balletbo i Serra 182c14dca07SEnric Balletbo i Serra return ret; 183c14dca07SEnric Balletbo i Serra } 184c14dca07SEnric Balletbo i Serra 185c14dca07SEnric Balletbo i Serra static const struct iio_info ec_sensors_info = { 186c14dca07SEnric Balletbo i Serra .read_raw = &cros_ec_sensors_read, 187c14dca07SEnric Balletbo i Serra .write_raw = &cros_ec_sensors_write, 188c14dca07SEnric Balletbo i Serra .driver_module = THIS_MODULE, 189c14dca07SEnric Balletbo i Serra }; 190c14dca07SEnric Balletbo i Serra 191c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_probe(struct platform_device *pdev) 192c14dca07SEnric Balletbo i Serra { 193c14dca07SEnric Balletbo i Serra struct device *dev = &pdev->dev; 194c14dca07SEnric Balletbo i Serra struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent); 195c14dca07SEnric Balletbo i Serra struct cros_ec_device *ec_device; 196c14dca07SEnric Balletbo i Serra struct iio_dev *indio_dev; 197c14dca07SEnric Balletbo i Serra struct cros_ec_sensors_state *state; 198c14dca07SEnric Balletbo i Serra struct iio_chan_spec *channel; 199c14dca07SEnric Balletbo i Serra int ret, i; 200c14dca07SEnric Balletbo i Serra 201c14dca07SEnric Balletbo i Serra if (!ec_dev || !ec_dev->ec_dev) { 202c14dca07SEnric Balletbo i Serra dev_warn(&pdev->dev, "No CROS EC device found.\n"); 203c14dca07SEnric Balletbo i Serra return -EINVAL; 204c14dca07SEnric Balletbo i Serra } 205c14dca07SEnric Balletbo i Serra ec_device = ec_dev->ec_dev; 206c14dca07SEnric Balletbo i Serra 207c14dca07SEnric Balletbo i Serra indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state)); 208c14dca07SEnric Balletbo i Serra if (!indio_dev) 209c14dca07SEnric Balletbo i Serra return -ENOMEM; 210c14dca07SEnric Balletbo i Serra 211c14dca07SEnric Balletbo i Serra ret = cros_ec_sensors_core_init(pdev, indio_dev, true); 212c14dca07SEnric Balletbo i Serra if (ret) 213c14dca07SEnric Balletbo i Serra return ret; 214c14dca07SEnric Balletbo i Serra 215c14dca07SEnric Balletbo i Serra indio_dev->info = &ec_sensors_info; 216c14dca07SEnric Balletbo i Serra state = iio_priv(indio_dev); 217c14dca07SEnric Balletbo i Serra for (channel = state->channels, i = CROS_EC_SENSOR_X; 218c14dca07SEnric Balletbo i Serra i < CROS_EC_SENSOR_MAX_AXIS; i++, channel++) { 219c14dca07SEnric Balletbo i Serra /* Common part */ 220c14dca07SEnric Balletbo i Serra channel->info_mask_separate = 221c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_RAW) | 222c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_CALIBBIAS); 223c14dca07SEnric Balletbo i Serra channel->info_mask_shared_by_all = 224c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_SCALE) | 225c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_FREQUENCY) | 226c14dca07SEnric Balletbo i Serra BIT(IIO_CHAN_INFO_SAMP_FREQ); 227c14dca07SEnric Balletbo i Serra channel->scan_type.realbits = CROS_EC_SENSOR_BITS; 228c14dca07SEnric Balletbo i Serra channel->scan_type.storagebits = CROS_EC_SENSOR_BITS; 229c14dca07SEnric Balletbo i Serra channel->scan_index = i; 230c14dca07SEnric Balletbo i Serra channel->ext_info = cros_ec_sensors_ext_info; 231c14dca07SEnric Balletbo i Serra channel->modified = 1; 232c14dca07SEnric Balletbo i Serra channel->channel2 = IIO_MOD_X + i; 233c14dca07SEnric Balletbo i Serra channel->scan_type.sign = 's'; 234c14dca07SEnric Balletbo i Serra 235c14dca07SEnric Balletbo i Serra /* Sensor specific */ 236c14dca07SEnric Balletbo i Serra switch (state->core.type) { 237c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_ACCEL: 238c14dca07SEnric Balletbo i Serra channel->type = IIO_ACCEL; 239c14dca07SEnric Balletbo i Serra break; 240c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_GYRO: 241c14dca07SEnric Balletbo i Serra channel->type = IIO_ANGL_VEL; 242c14dca07SEnric Balletbo i Serra break; 243c14dca07SEnric Balletbo i Serra case MOTIONSENSE_TYPE_MAG: 244c14dca07SEnric Balletbo i Serra channel->type = IIO_MAGN; 245c14dca07SEnric Balletbo i Serra break; 246c14dca07SEnric Balletbo i Serra default: 247c14dca07SEnric Balletbo i Serra dev_err(&pdev->dev, "Unknown motion sensor\n"); 248c14dca07SEnric Balletbo i Serra return -EINVAL; 249c14dca07SEnric Balletbo i Serra } 250c14dca07SEnric Balletbo i Serra } 251c14dca07SEnric Balletbo i Serra 252c14dca07SEnric Balletbo i Serra /* Timestamp */ 253c14dca07SEnric Balletbo i Serra channel->type = IIO_TIMESTAMP; 254c14dca07SEnric Balletbo i Serra channel->channel = -1; 255c14dca07SEnric Balletbo i Serra channel->scan_index = CROS_EC_SENSOR_MAX_AXIS; 256c14dca07SEnric Balletbo i Serra channel->scan_type.sign = 's'; 257c14dca07SEnric Balletbo i Serra channel->scan_type.realbits = 64; 258c14dca07SEnric Balletbo i Serra channel->scan_type.storagebits = 64; 259c14dca07SEnric Balletbo i Serra 260c14dca07SEnric Balletbo i Serra indio_dev->channels = state->channels; 261c14dca07SEnric Balletbo i Serra indio_dev->num_channels = CROS_EC_SENSORS_MAX_CHANNELS; 262c14dca07SEnric Balletbo i Serra 263c14dca07SEnric Balletbo i Serra /* There is only enough room for accel and gyro in the io space */ 264c14dca07SEnric Balletbo i Serra if ((state->core.ec->cmd_readmem != NULL) && 265c14dca07SEnric Balletbo i Serra (state->core.type != MOTIONSENSE_TYPE_MAG)) 266c14dca07SEnric Balletbo i Serra state->core.read_ec_sensors_data = cros_ec_sensors_read_lpc; 267c14dca07SEnric Balletbo i Serra else 268c14dca07SEnric Balletbo i Serra state->core.read_ec_sensors_data = cros_ec_sensors_read_cmd; 269c14dca07SEnric Balletbo i Serra 270c14dca07SEnric Balletbo i Serra ret = iio_triggered_buffer_setup(indio_dev, NULL, 271c14dca07SEnric Balletbo i Serra cros_ec_sensors_capture, NULL); 272c14dca07SEnric Balletbo i Serra if (ret) 273c14dca07SEnric Balletbo i Serra return ret; 274c14dca07SEnric Balletbo i Serra 275c14dca07SEnric Balletbo i Serra ret = iio_device_register(indio_dev); 276c14dca07SEnric Balletbo i Serra if (ret) 277c14dca07SEnric Balletbo i Serra goto error_uninit_buffer; 278c14dca07SEnric Balletbo i Serra 279c14dca07SEnric Balletbo i Serra return 0; 280c14dca07SEnric Balletbo i Serra 281c14dca07SEnric Balletbo i Serra error_uninit_buffer: 282c14dca07SEnric Balletbo i Serra iio_triggered_buffer_cleanup(indio_dev); 283c14dca07SEnric Balletbo i Serra 284c14dca07SEnric Balletbo i Serra return ret; 285c14dca07SEnric Balletbo i Serra } 286c14dca07SEnric Balletbo i Serra 287c14dca07SEnric Balletbo i Serra static int cros_ec_sensors_remove(struct platform_device *pdev) 288c14dca07SEnric Balletbo i Serra { 289c14dca07SEnric Balletbo i Serra struct iio_dev *indio_dev = platform_get_drvdata(pdev); 290c14dca07SEnric Balletbo i Serra 291c14dca07SEnric Balletbo i Serra iio_device_unregister(indio_dev); 292c14dca07SEnric Balletbo i Serra iio_triggered_buffer_cleanup(indio_dev); 293c14dca07SEnric Balletbo i Serra 294c14dca07SEnric Balletbo i Serra return 0; 295c14dca07SEnric Balletbo i Serra } 296c14dca07SEnric Balletbo i Serra 297c14dca07SEnric Balletbo i Serra static const struct platform_device_id cros_ec_sensors_ids[] = { 298c14dca07SEnric Balletbo i Serra { 299c14dca07SEnric Balletbo i Serra .name = "cros-ec-accel", 300c14dca07SEnric Balletbo i Serra }, 301c14dca07SEnric Balletbo i Serra { 302c14dca07SEnric Balletbo i Serra .name = "cros-ec-gyro", 303c14dca07SEnric Balletbo i Serra }, 304c14dca07SEnric Balletbo i Serra { 305c14dca07SEnric Balletbo i Serra .name = "cros-ec-mag", 306c14dca07SEnric Balletbo i Serra }, 307c14dca07SEnric Balletbo i Serra { /* sentinel */ } 308c14dca07SEnric Balletbo i Serra }; 309c14dca07SEnric Balletbo i Serra MODULE_DEVICE_TABLE(platform, cros_ec_sensors_ids); 310c14dca07SEnric Balletbo i Serra 311c14dca07SEnric Balletbo i Serra static struct platform_driver cros_ec_sensors_platform_driver = { 312c14dca07SEnric Balletbo i Serra .driver = { 313c14dca07SEnric Balletbo i Serra .name = "cros-ec-sensors", 314c14dca07SEnric Balletbo i Serra }, 315c14dca07SEnric Balletbo i Serra .probe = cros_ec_sensors_probe, 316c14dca07SEnric Balletbo i Serra .remove = cros_ec_sensors_remove, 317c14dca07SEnric Balletbo i Serra .id_table = cros_ec_sensors_ids, 318c14dca07SEnric Balletbo i Serra }; 319c14dca07SEnric Balletbo i Serra module_platform_driver(cros_ec_sensors_platform_driver); 320c14dca07SEnric Balletbo i Serra 321c14dca07SEnric Balletbo i Serra MODULE_DESCRIPTION("ChromeOS EC 3-axis sensors driver"); 322c14dca07SEnric Balletbo i Serra MODULE_LICENSE("GPL v2"); 323