drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * STMicroelectronics st_lsm6dsx sensor driver
   4  *
   5  * Copyright 2016 STMicroelectronics Inc.
   6  *
   7  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
   8  * Denis Ciocca <denis.ciocca@st.com>
   9  */
  10
  11 #ifndef ST_LSM6DSX_H
  12 #define ST_LSM6DSX_H
  13
  14 #include <linux/device.h>
  15 #include <linux/iio/iio.h>
  16 #include <linux/regulator/consumer.h>
  17
  18 #define ST_LSM6DS3_DEV_NAME     "lsm6ds3"
  19 #define ST_LSM6DS3H_DEV_NAME    "lsm6ds3h"
  20 #define ST_LSM6DSL_DEV_NAME     "lsm6dsl"
  21 #define ST_LSM6DSM_DEV_NAME     "lsm6dsm"
  22 #define ST_ISM330DLC_DEV_NAME   "ism330dlc"
  23 #define ST_LSM6DSO_DEV_NAME     "lsm6dso"
  24 #define ST_ASM330LHH_DEV_NAME   "asm330lhh"
  25 #define ST_LSM6DSOX_DEV_NAME    "lsm6dsox"
  26 #define ST_LSM6DSR_DEV_NAME     "lsm6dsr"
  27 #define ST_LSM6DS3TRC_DEV_NAME  "lsm6ds3tr-c"
  28 #define ST_ISM330DHCX_DEV_NAME  "ism330dhcx"
  29 #define ST_LSM9DS1_DEV_NAME     "lsm9ds1-imu"
  30 #define ST_LSM6DS0_DEV_NAME     "lsm6ds0"
  31 #define ST_LSM6DSRX_DEV_NAME    "lsm6dsrx"
  32 #define ST_LSM6DST_DEV_NAME     "lsm6dst"
  33 #define ST_LSM6DSOP_DEV_NAME    "lsm6dsop"
  34 #define ST_ASM330LHHX_DEV_NAME  "asm330lhhx"
  35 #define ST_LSM6DSTX_DEV_NAME    "lsm6dstx"
  36 #define ST_LSM6DSV_DEV_NAME     "lsm6dsv"
  37 #define ST_LSM6DSV16X_DEV_NAME  "lsm6dsv16x"
  38 #define ST_LSM6DSO16IS_DEV_NAME "lsm6dso16is"
  39 #define ST_ISM330IS_DEV_NAME    "ism330is"
  40 #define ST_ASM330LHB_DEV_NAME   "asm330lhb"
  41 #define ST_ASM330LHHXG1_DEV_NAME        "asm330lhhxg1"
  42
  43 enum st_lsm6dsx_hw_id {
  44         ST_LSM6DS3_ID = 1,
  45         ST_LSM6DS3H_ID,
  46         ST_LSM6DSL_ID,
  47         ST_LSM6DSM_ID,
  48         ST_ISM330DLC_ID,
  49         ST_LSM6DSO_ID,
  50         ST_ASM330LHH_ID,
  51         ST_LSM6DSOX_ID,
  52         ST_LSM6DSR_ID,
  53         ST_LSM6DS3TRC_ID,
  54         ST_ISM330DHCX_ID,
  55         ST_LSM9DS1_ID,
  56         ST_LSM6DS0_ID,
  57         ST_LSM6DSRX_ID,
  58         ST_LSM6DST_ID,
  59         ST_LSM6DSOP_ID,
  60         ST_ASM330LHHX_ID,
  61         ST_LSM6DSTX_ID,
  62         ST_LSM6DSV_ID,
  63         ST_LSM6DSV16X_ID,
  64         ST_LSM6DSO16IS_ID,
  65         ST_ISM330IS_ID,
  66         ST_ASM330LHB_ID,
  67         ST_ASM330LHHXG1_ID,
  68         ST_LSM6DSX_MAX_ID,
  69 };
  70
  71 #define ST_LSM6DSX_BUFF_SIZE            512
  72 #define ST_LSM6DSX_CHAN_SIZE            2
  73 #define ST_LSM6DSX_SAMPLE_SIZE          6
  74 #define ST_LSM6DSX_TAG_SIZE             1
  75 #define ST_LSM6DSX_TAGGED_SAMPLE_SIZE   (ST_LSM6DSX_SAMPLE_SIZE + \
  76                                          ST_LSM6DSX_TAG_SIZE)
  77 #define ST_LSM6DSX_MAX_WORD_LEN         ((32 / ST_LSM6DSX_SAMPLE_SIZE) * \
  78                                          ST_LSM6DSX_SAMPLE_SIZE)
  79 #define ST_LSM6DSX_MAX_TAGGED_WORD_LEN  ((32 / ST_LSM6DSX_TAGGED_SAMPLE_SIZE) \
  80                                          * ST_LSM6DSX_TAGGED_SAMPLE_SIZE)
  81 #define ST_LSM6DSX_SHIFT_VAL(val, mask) (((val) << __ffs(mask)) & (mask))
  82
  83 #define ST_LSM6DSX_CHANNEL_ACC(chan_type, addr, mod, scan_idx)          \
  84 {                                                                       \
  85         .type = chan_type,                                              \
  86         .address = addr,                                                \
  87         .modified = 1,                                                  \
  88         .channel2 = mod,                                                \
  89         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),                   \
  90         .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),           \
  91         .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),        \
  92         .scan_index = scan_idx,                                         \
  93         .scan_type = {                                                  \
  94                 .sign = 's',                                            \
  95                 .realbits = 16,                                         \
  96                 .storagebits = 16,                                      \
  97                 .endianness = IIO_LE,                                   \
  98         },                                                              \
  99         .event_spec = &st_lsm6dsx_event,                                \
 100         .ext_info = st_lsm6dsx_ext_info,                                \
 101         .num_event_specs = 1,                                           \
 102 }
 103
 104 #define ST_LSM6DSX_CHANNEL(chan_type, addr, mod, scan_idx)              \
 105 {                                                                       \
 106         .type = chan_type,                                              \
 107         .address = addr,                                                \
 108         .modified = 1,                                                  \
 109         .channel2 = mod,                                                \
 110         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),                   \
 111         .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),           \
 112         .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),        \
 113         .scan_index = scan_idx,                                         \
 114         .scan_type = {                                                  \
 115                 .sign = 's',                                            \
 116                 .realbits = 16,                                         \
 117                 .storagebits = 16,                                      \
 118                 .endianness = IIO_LE,                                   \
 119         },                                                              \
 120         .ext_info = st_lsm6dsx_ext_info,                                \
 121 }
 122
 123 struct st_lsm6dsx_reg {
 124         u8 addr;
 125         u8 mask;
 126 };
 127
 128 struct st_lsm6dsx_sensor;
 129 struct st_lsm6dsx_hw;
 130
 131 struct st_lsm6dsx_odr {
 132         u32 milli_hz;
 133         u8 val;
 134 };
 135
 136 #define ST_LSM6DSX_ODR_LIST_SIZE        8
 137 struct st_lsm6dsx_odr_table_entry {
 138         struct st_lsm6dsx_reg reg;
 139
 140         struct st_lsm6dsx_odr odr_avl[ST_LSM6DSX_ODR_LIST_SIZE];
 141         int odr_len;
 142 };
 143
 144 struct st_lsm6dsx_samples_to_discard {
 145         struct {
 146                 u32 milli_hz;
 147                 u16 samples;
 148         } val[ST_LSM6DSX_ODR_LIST_SIZE];
 149 };
 150
 151 struct st_lsm6dsx_fs {
 152         u32 gain;
 153         u8 val;
 154 };
 155
 156 #define ST_LSM6DSX_FS_LIST_SIZE         4
 157 struct st_lsm6dsx_fs_table_entry {
 158         struct st_lsm6dsx_reg reg;
 159
 160         struct st_lsm6dsx_fs fs_avl[ST_LSM6DSX_FS_LIST_SIZE];
 161         int fs_len;
 162 };
 163
 164 /**
 165  * struct st_lsm6dsx_fifo_ops - ST IMU FIFO settings
 166  * @update_fifo: Update FIFO configuration callback.
 167  * @read_fifo: Read FIFO callback.
 168  * @fifo_th: FIFO threshold register info (addr + mask).
 169  * @fifo_diff: FIFO diff status register info (addr + mask).
 170  * @max_size: Sensor max fifo length in FIFO words.
 171  * @th_wl: FIFO threshold word length.
 172  */
 173 struct st_lsm6dsx_fifo_ops {
 174         int (*update_fifo)(struct st_lsm6dsx_sensor *sensor, bool enable);
 175         int (*read_fifo)(struct st_lsm6dsx_hw *hw);
 176         struct {
 177                 u8 addr;
 178                 u16 mask;
 179         } fifo_th;
 180         struct {
 181                 u8 addr;
 182                 u16 mask;
 183         } fifo_diff;
 184         u16 max_size;
 185         u8 th_wl;
 186 };
 187
 188 /**
 189  * struct st_lsm6dsx_hw_ts_settings - ST IMU hw timer settings
 190  * @timer_en: Hw timer enable register info (addr + mask).
 191  * @hr_timer: Hw timer resolution register info (addr + mask).
 192  * @fifo_en: Hw timer FIFO enable register info (addr + mask).
 193  * @decimator: Hw timer FIFO decimator register info (addr + mask).
 194  * @freq_fine: Difference in % of ODR with respect to the typical.
 195  */
 196 struct st_lsm6dsx_hw_ts_settings {
 197         struct st_lsm6dsx_reg timer_en;
 198         struct st_lsm6dsx_reg hr_timer;
 199         struct st_lsm6dsx_reg fifo_en;
 200         struct st_lsm6dsx_reg decimator;
 201         u8 freq_fine;
 202 };
 203
 204 /**
 205  * struct st_lsm6dsx_shub_settings - ST IMU hw i2c controller settings
 206  * @page_mux: register page mux info (addr + mask).
 207  * @master_en: master config register info (addr + mask).
 208  * @pullup_en: i2c controller pull-up register info (addr + mask).
 209  * @aux_sens: aux sensor register info (addr + mask).
 210  * @wr_once: write_once register info (addr + mask).
 211  * @emb_func:  embedded function register info (addr + mask).
 212  * @num_ext_dev: max number of slave devices.
 213  * @shub_out: sensor hub first output register info.
 214  * @slv0_addr: slave0 address in secondary page.
 215  * @dw_slv0_addr: slave0 write register address in secondary page.
 216  * @batch_en: Enable/disable FIFO batching.
 217  * @pause: controller pause value.
 218  */
 219 struct st_lsm6dsx_shub_settings {
 220         struct st_lsm6dsx_reg page_mux;
 221         struct {
 222                 bool sec_page;
 223                 u8 addr;
 224                 u8 mask;
 225         } master_en;
 226         struct {
 227                 bool sec_page;
 228                 u8 addr;
 229                 u8 mask;
 230         } pullup_en;
 231         struct st_lsm6dsx_reg aux_sens;
 232         struct st_lsm6dsx_reg wr_once;
 233         struct st_lsm6dsx_reg emb_func;
 234         u8 num_ext_dev;
 235         struct {
 236                 bool sec_page;
 237                 u8 addr;
 238         } shub_out;
 239         u8 slv0_addr;
 240         u8 dw_slv0_addr;
 241         u8 batch_en;
 242         u8 pause;
 243 };
 244
 245 struct st_lsm6dsx_event_settings {
 246         struct st_lsm6dsx_reg enable_reg;
 247         struct st_lsm6dsx_reg wakeup_reg;
 248         u8 wakeup_src_reg;
 249         u8 wakeup_src_status_mask;
 250         u8 wakeup_src_z_mask;
 251         u8 wakeup_src_y_mask;
 252         u8 wakeup_src_x_mask;
 253 };
 254
 255 enum st_lsm6dsx_ext_sensor_id {
 256         ST_LSM6DSX_ID_MAGN,
 257 };
 258
 259 /**
 260  * struct st_lsm6dsx_ext_dev_settings - i2c controller slave settings
 261  * @i2c_addr: I2c slave address list.
 262  * @wai: Wai address info.
 263  * @id: external sensor id.
 264  * @odr_table: Output data rate of the sensor [Hz].
 265  * @fs_table: Configured sensor sensitivity table depending on full scale.
 266  * @temp_comp: Temperature compensation register info (addr + mask).
 267  * @pwr_table: Power on register info (addr + mask).
 268  * @off_canc: Offset cancellation register info (addr + mask).
 269  * @bdu: Block data update register info (addr + mask).
 270  * @out: Output register info.
 271  */
 272 struct st_lsm6dsx_ext_dev_settings {
 273         u8 i2c_addr[2];
 274         struct {
 275                 u8 addr;
 276                 u8 val;
 277         } wai;
 278         enum st_lsm6dsx_ext_sensor_id id;
 279         struct st_lsm6dsx_odr_table_entry odr_table;
 280         struct st_lsm6dsx_fs_table_entry fs_table;
 281         struct st_lsm6dsx_reg temp_comp;
 282         struct {
 283                 struct st_lsm6dsx_reg reg;
 284                 u8 off_val;
 285                 u8 on_val;
 286         } pwr_table;
 287         struct st_lsm6dsx_reg off_canc;
 288         struct st_lsm6dsx_reg bdu;
 289         struct {
 290                 u8 addr;
 291                 u8 len;
 292         } out;
 293 };
 294
 295 /**
 296  * struct st_lsm6dsx_settings - ST IMU sensor settings
 297  * @reset: register address for reset.
 298  * @boot: register address for boot.
 299  * @bdu: register address for Block Data Update.
 300  * @id: List of hw id/device name supported by the driver configuration.
 301  * @channels: IIO channels supported by the device.
 302  * @irq_config: interrupts related registers.
 303  * @drdy_mask: register info for data-ready mask (addr + mask).
 304  * @odr_table: Hw sensors odr table (Hz + val).
 305  * @samples_to_discard: Number of samples to discard for filters settling time.
 306  * @fs_table: Hw sensors gain table (gain + val).
 307  * @decimator: List of decimator register info (addr + mask).
 308  * @batch: List of FIFO batching register info (addr + mask).
 309  * @fifo_ops: Sensor hw FIFO parameters.
 310  * @ts_settings: Hw timer related settings.
 311  * @shub_settings: i2c controller related settings.
 312  */
 313 struct st_lsm6dsx_settings {
 314         struct st_lsm6dsx_reg reset;
 315         struct st_lsm6dsx_reg boot;
 316         struct st_lsm6dsx_reg bdu;
 317         struct {
 318                 enum st_lsm6dsx_hw_id hw_id;
 319                 const char *name;
 320                 u8 wai;
 321         } id[ST_LSM6DSX_MAX_ID];
 322         struct {
 323                 const struct iio_chan_spec *chan;
 324                 int len;
 325         } channels[2];
 326         struct {
 327                 struct st_lsm6dsx_reg irq1;
 328                 struct st_lsm6dsx_reg irq2;
 329                 struct st_lsm6dsx_reg irq1_func;
 330                 struct st_lsm6dsx_reg irq2_func;
 331                 struct st_lsm6dsx_reg lir;
 332                 struct st_lsm6dsx_reg clear_on_read;
 333                 struct st_lsm6dsx_reg hla;
 334                 struct st_lsm6dsx_reg od;
 335         } irq_config;
 336         struct st_lsm6dsx_reg drdy_mask;
 337         struct st_lsm6dsx_odr_table_entry odr_table[2];
 338         struct st_lsm6dsx_samples_to_discard samples_to_discard[2];
 339         struct st_lsm6dsx_fs_table_entry fs_table[2];
 340         struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID];
 341         struct st_lsm6dsx_reg batch[ST_LSM6DSX_MAX_ID];
 342         struct st_lsm6dsx_fifo_ops fifo_ops;
 343         struct st_lsm6dsx_hw_ts_settings ts_settings;
 344         struct st_lsm6dsx_shub_settings shub_settings;
 345         struct st_lsm6dsx_event_settings event_settings;
 346 };
 347
 348 enum st_lsm6dsx_sensor_id {
 349         ST_LSM6DSX_ID_GYRO,
 350         ST_LSM6DSX_ID_ACC,
 351         ST_LSM6DSX_ID_EXT0,
 352         ST_LSM6DSX_ID_EXT1,
 353         ST_LSM6DSX_ID_EXT2,
 354         ST_LSM6DSX_ID_MAX,
 355 };
 356
 357 enum st_lsm6dsx_fifo_mode {
 358         ST_LSM6DSX_FIFO_BYPASS = 0x0,
 359         ST_LSM6DSX_FIFO_CONT = 0x6,
 360 };
 361
 362 /**
 363  * struct st_lsm6dsx_sensor - ST IMU sensor instance
 364  * @name: Sensor name.
 365  * @id: Sensor identifier.
 366  * @hw: Pointer to instance of struct st_lsm6dsx_hw.
 367  * @gain: Configured sensor sensitivity.
 368  * @odr: Output data rate of the sensor [Hz].
 369  * @samples_to_discard: Number of samples to discard for filters settling time.
 370  * @watermark: Sensor watermark level.
 371  * @decimator: Sensor decimation factor.
 372  * @sip: Number of samples in a given pattern.
 373  * @ts_ref: Sensor timestamp reference for hw one.
 374  * @ext_info: Sensor settings if it is connected to i2c controller
 375  */
 376 struct st_lsm6dsx_sensor {
 377         char name[32];
 378         enum st_lsm6dsx_sensor_id id;
 379         struct st_lsm6dsx_hw *hw;
 380
 381         u32 gain;
 382         u32 odr;
 383
 384         u16 samples_to_discard;
 385         u16 watermark;
 386         u8 decimator;
 387         u8 sip;
 388         s64 ts_ref;
 389
 390         struct {
 391                 const struct st_lsm6dsx_ext_dev_settings *settings;
 392                 u32 slv_odr;
 393                 u8 addr;
 394         } ext_info;
 395 };
 396
 397 /**
 398  * struct st_lsm6dsx_hw - ST IMU MEMS hw instance
 399  * @dev: Pointer to instance of struct device (I2C or SPI).
 400  * @regmap: Register map of the device.
 401  * @irq: Device interrupt line (I2C or SPI).
 402  * @fifo_lock: Mutex to prevent concurrent access to the hw FIFO.
 403  * @conf_lock: Mutex to prevent concurrent FIFO configuration update.
 404  * @page_lock: Mutex to prevent concurrent memory page configuration.
 405  * @suspend_mask: Suspended sensor bitmask.
 406  * @enable_mask: Enabled sensor bitmask.
 407  * @fifo_mask: Enabled hw FIFO bitmask.
 408  * @ts_gain: Hw timestamp rate after internal calibration.
 409  * @ts_sip: Total number of timestamp samples in a given pattern.
 410  * @sip: Total number of samples (acc/gyro/ts) in a given pattern.
 411  * @buff: Device read buffer.
 412  * @irq_routing: pointer to interrupt routing configuration.
 413  * @event_threshold: wakeup event threshold.
 414  * @enable_event: enabled event bitmask.
 415  * @iio_devs: Pointers to acc/gyro iio_dev instances.
 416  * @settings: Pointer to the specific sensor settings in use.
 417  * @orientation: sensor chip orientation relative to main hardware.
 418  * @scan: Temporary buffers used to align data before iio_push_to_buffers()
 419  */
 420 struct st_lsm6dsx_hw {
 421         struct device *dev;
 422         struct regmap *regmap;
 423         int irq;
 424
 425         struct mutex fifo_lock;
 426         struct mutex conf_lock;
 427         struct mutex page_lock;
 428
 429         u8 suspend_mask;
 430         u8 enable_mask;
 431         u8 fifo_mask;
 432         s64 ts_gain;
 433         u8 ts_sip;
 434         u8 sip;
 435
 436         const struct st_lsm6dsx_reg *irq_routing;
 437         u8 event_threshold;
 438         u8 enable_event;
 439
 440         u8 *buff;
 441
 442         struct iio_dev *iio_devs[ST_LSM6DSX_ID_MAX];
 443
 444         const struct st_lsm6dsx_settings *settings;
 445
 446         struct iio_mount_matrix orientation;
 447         /* Ensure natural alignment of buffer elements */
 448         struct {
 449                 __le16 channels[3];
 450                 aligned_s64 ts;
 451         } scan[ST_LSM6DSX_ID_MAX];
 452 };
 453
 454 static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = {
 455         .type = IIO_EV_TYPE_THRESH,
 456         .dir = IIO_EV_DIR_EITHER,
 457         .mask_separate = BIT(IIO_EV_INFO_VALUE) |
 458                          BIT(IIO_EV_INFO_ENABLE)
 459 };
 460
 461 static __maybe_unused const unsigned long st_lsm6dsx_available_scan_masks[] = {
 462         0x7, 0x0,
 463 };
 464
 465 extern const struct dev_pm_ops st_lsm6dsx_pm_ops;
 466
 467 int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id,
 468                      struct regmap *regmap);
 469 int st_lsm6dsx_sensor_set_enable(struct st_lsm6dsx_sensor *sensor,
 470                                  bool enable);
 471 int st_lsm6dsx_fifo_setup(struct st_lsm6dsx_hw *hw);
 472 int st_lsm6dsx_set_watermark(struct iio_dev *iio_dev, unsigned int val);
 473 int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor,
 474                                 u16 watermark);
 475 int st_lsm6dsx_update_fifo(struct st_lsm6dsx_sensor *sensor, bool enable);
 476 int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw);
 477 int st_lsm6dsx_resume_fifo(struct st_lsm6dsx_hw *hw);
 478 int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw);
 479 int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw);
 480 int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u32 odr, u8 *val);
 481 int st_lsm6dsx_shub_probe(struct st_lsm6dsx_hw *hw, const char *name);
 482 int st_lsm6dsx_shub_set_enable(struct st_lsm6dsx_sensor *sensor, bool enable);
 483 int st_lsm6dsx_shub_read_output(struct st_lsm6dsx_hw *hw, u8 *data, int len);
 484 int st_lsm6dsx_set_page(struct st_lsm6dsx_hw *hw, bool enable);
 485
 486 static inline int
 487 st_lsm6dsx_update_bits_locked(struct st_lsm6dsx_hw *hw, unsigned int addr,
 488                               unsigned int mask, unsigned int val)
 489 {
 490         int err;
 491
 492         mutex_lock(&hw->page_lock);
 493         err = regmap_update_bits(hw->regmap, addr, mask, val);
 494         mutex_unlock(&hw->page_lock);
 495
 496         return err;
 497 }
 498
 499 static inline int
 500 st_lsm6dsx_read_locked(struct st_lsm6dsx_hw *hw, unsigned int addr,
 501                        void *val, unsigned int len)
 502 {
 503         int err;
 504
 505         mutex_lock(&hw->page_lock);
 506         err = regmap_bulk_read(hw->regmap, addr, val, len);
 507         mutex_unlock(&hw->page_lock);
 508
 509         return err;
 510 }
 511
 512 static inline int
 513 st_lsm6dsx_write_locked(struct st_lsm6dsx_hw *hw, unsigned int addr,
 514                         unsigned int val)
 515 {
 516         int err;
 517
 518         mutex_lock(&hw->page_lock);
 519         err = regmap_write(hw->regmap, addr, val);
 520         mutex_unlock(&hw->page_lock);
 521
 522         return err;
 523 }
 524
 525 static inline const struct iio_mount_matrix *
 526 st_lsm6dsx_get_mount_matrix(const struct iio_dev *iio_dev,
 527                             const struct iio_chan_spec *chan)
 528 {
 529         struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev);
 530         struct st_lsm6dsx_hw *hw = sensor->hw;
 531
 532         return &hw->orientation;
 533 }
 534
 535 static inline int
 536 st_lsm6dsx_device_set_enable(struct st_lsm6dsx_sensor *sensor, bool enable)
 537 {
 538         if (sensor->id == ST_LSM6DSX_ID_EXT0 ||
 539             sensor->id == ST_LSM6DSX_ID_EXT1 ||
 540             sensor->id == ST_LSM6DSX_ID_EXT2)
 541                 return st_lsm6dsx_shub_set_enable(sensor, enable);
 542
 543         return st_lsm6dsx_sensor_set_enable(sensor, enable);
 544 }
 545
 546 static const
 547 struct iio_chan_spec_ext_info __maybe_unused st_lsm6dsx_ext_info[] = {
 548         IIO_MOUNT_MATRIX(IIO_SHARED_BY_ALL, st_lsm6dsx_get_mount_matrix),
 549         { }
 550 };
 551
 552 #endif /* ST_LSM6DSX_H */