1  /* SPDX-License-Identifier: GPL-2.0-or-later */
2  /*
3   * Copyright (C) 2020 Invensense, Inc.
4   */
5  
6  #ifndef INV_ICM42600_H_
7  #define INV_ICM42600_H_
8  
9  #include <linux/bits.h>
10  #include <linux/bitfield.h>
11  #include <linux/regmap.h>
12  #include <linux/mutex.h>
13  #include <linux/regulator/consumer.h>
14  #include <linux/pm.h>
15  #include <linux/iio/iio.h>
16  #include <linux/iio/common/inv_sensors_timestamp.h>
17  
18  #include "inv_icm42600_buffer.h"
19  
20  enum inv_icm42600_chip {
21  	INV_CHIP_INVALID,
22  	INV_CHIP_ICM42600,
23  	INV_CHIP_ICM42602,
24  	INV_CHIP_ICM42605,
25  	INV_CHIP_ICM42686,
26  	INV_CHIP_ICM42622,
27  	INV_CHIP_ICM42688,
28  	INV_CHIP_ICM42631,
29  	INV_CHIP_NB,
30  };
31  
32  /* serial bus slew rates */
33  enum inv_icm42600_slew_rate {
34  	INV_ICM42600_SLEW_RATE_20_60NS,
35  	INV_ICM42600_SLEW_RATE_12_36NS,
36  	INV_ICM42600_SLEW_RATE_6_18NS,
37  	INV_ICM42600_SLEW_RATE_4_12NS,
38  	INV_ICM42600_SLEW_RATE_2_6NS,
39  	INV_ICM42600_SLEW_RATE_INF_2NS,
40  };
41  
42  enum inv_icm42600_sensor_mode {
43  	INV_ICM42600_SENSOR_MODE_OFF,
44  	INV_ICM42600_SENSOR_MODE_STANDBY,
45  	INV_ICM42600_SENSOR_MODE_LOW_POWER,
46  	INV_ICM42600_SENSOR_MODE_LOW_NOISE,
47  	INV_ICM42600_SENSOR_MODE_NB,
48  };
49  
50  /* gyroscope fullscale values */
51  enum inv_icm42600_gyro_fs {
52  	INV_ICM42600_GYRO_FS_2000DPS,
53  	INV_ICM42600_GYRO_FS_1000DPS,
54  	INV_ICM42600_GYRO_FS_500DPS,
55  	INV_ICM42600_GYRO_FS_250DPS,
56  	INV_ICM42600_GYRO_FS_125DPS,
57  	INV_ICM42600_GYRO_FS_62_5DPS,
58  	INV_ICM42600_GYRO_FS_31_25DPS,
59  	INV_ICM42600_GYRO_FS_15_625DPS,
60  	INV_ICM42600_GYRO_FS_NB,
61  };
62  enum inv_icm42686_gyro_fs {
63  	INV_ICM42686_GYRO_FS_4000DPS,
64  	INV_ICM42686_GYRO_FS_2000DPS,
65  	INV_ICM42686_GYRO_FS_1000DPS,
66  	INV_ICM42686_GYRO_FS_500DPS,
67  	INV_ICM42686_GYRO_FS_250DPS,
68  	INV_ICM42686_GYRO_FS_125DPS,
69  	INV_ICM42686_GYRO_FS_62_5DPS,
70  	INV_ICM42686_GYRO_FS_31_25DPS,
71  	INV_ICM42686_GYRO_FS_NB,
72  };
73  
74  /* accelerometer fullscale values */
75  enum inv_icm42600_accel_fs {
76  	INV_ICM42600_ACCEL_FS_16G,
77  	INV_ICM42600_ACCEL_FS_8G,
78  	INV_ICM42600_ACCEL_FS_4G,
79  	INV_ICM42600_ACCEL_FS_2G,
80  	INV_ICM42600_ACCEL_FS_NB,
81  };
82  enum inv_icm42686_accel_fs {
83  	INV_ICM42686_ACCEL_FS_32G,
84  	INV_ICM42686_ACCEL_FS_16G,
85  	INV_ICM42686_ACCEL_FS_8G,
86  	INV_ICM42686_ACCEL_FS_4G,
87  	INV_ICM42686_ACCEL_FS_2G,
88  	INV_ICM42686_ACCEL_FS_NB,
89  };
90  
91  /* ODR suffixed by LN or LP are Low-Noise or Low-Power mode only */
92  enum inv_icm42600_odr {
93  	INV_ICM42600_ODR_8KHZ_LN = 3,
94  	INV_ICM42600_ODR_4KHZ_LN,
95  	INV_ICM42600_ODR_2KHZ_LN,
96  	INV_ICM42600_ODR_1KHZ_LN,
97  	INV_ICM42600_ODR_200HZ,
98  	INV_ICM42600_ODR_100HZ,
99  	INV_ICM42600_ODR_50HZ,
100  	INV_ICM42600_ODR_25HZ,
101  	INV_ICM42600_ODR_12_5HZ,
102  	INV_ICM42600_ODR_6_25HZ_LP,
103  	INV_ICM42600_ODR_3_125HZ_LP,
104  	INV_ICM42600_ODR_1_5625HZ_LP,
105  	INV_ICM42600_ODR_500HZ,
106  	INV_ICM42600_ODR_NB,
107  };
108  
109  enum inv_icm42600_filter {
110  	/* Low-Noise mode sensor data filter (3rd order filter by default) */
111  	INV_ICM42600_FILTER_BW_ODR_DIV_2,
112  
113  	/* Low-Power mode sensor data filter (averaging) */
114  	INV_ICM42600_FILTER_AVG_1X = 1,
115  	INV_ICM42600_FILTER_AVG_16X = 6,
116  };
117  
118  struct inv_icm42600_sensor_conf {
119  	int mode;
120  	int fs;
121  	int odr;
122  	int filter;
123  };
124  #define INV_ICM42600_SENSOR_CONF_INIT		{-1, -1, -1, -1}
125  
126  struct inv_icm42600_conf {
127  	struct inv_icm42600_sensor_conf gyro;
128  	struct inv_icm42600_sensor_conf accel;
129  	bool temp_en;
130  };
131  
132  struct inv_icm42600_suspended {
133  	enum inv_icm42600_sensor_mode gyro;
134  	enum inv_icm42600_sensor_mode accel;
135  	bool temp;
136  };
137  
138  /**
139   *  struct inv_icm42600_state - driver state variables
140   *  @lock:		lock for serializing multiple registers access.
141   *  @chip:		chip identifier.
142   *  @name:		chip name.
143   *  @map:		regmap pointer.
144   *  @vdd_supply:	VDD voltage regulator for the chip.
145   *  @vddio_supply:	I/O voltage regulator for the chip.
146   *  @orientation:	sensor chip orientation relative to main hardware.
147   *  @conf:		chip sensors configurations.
148   *  @suspended:		suspended sensors configuration.
149   *  @indio_gyro:	gyroscope IIO device.
150   *  @indio_accel:	accelerometer IIO device.
151   *  @buffer:		data transfer buffer aligned for DMA.
152   *  @fifo:		FIFO management structure.
153   *  @timestamp:		interrupt timestamps.
154   */
155  struct inv_icm42600_state {
156  	struct mutex lock;
157  	enum inv_icm42600_chip chip;
158  	const char *name;
159  	struct regmap *map;
160  	struct regulator *vdd_supply;
161  	struct regulator *vddio_supply;
162  	struct iio_mount_matrix orientation;
163  	struct inv_icm42600_conf conf;
164  	struct inv_icm42600_suspended suspended;
165  	struct iio_dev *indio_gyro;
166  	struct iio_dev *indio_accel;
167  	uint8_t buffer[2] __aligned(IIO_DMA_MINALIGN);
168  	struct inv_icm42600_fifo fifo;
169  	struct {
170  		int64_t gyro;
171  		int64_t accel;
172  	} timestamp;
173  };
174  
175  
176  /**
177   * struct inv_icm42600_sensor_state - sensor state variables
178   * @scales:		table of scales.
179   * @scales_len:		length (nb of items) of the scales table.
180   * @power_mode:		sensor requested power mode (for common frequencies)
181   * @filter:		sensor filter.
182   * @ts:			timestamp module states.
183   */
184  struct inv_icm42600_sensor_state {
185  	const int *scales;
186  	size_t scales_len;
187  	enum inv_icm42600_sensor_mode power_mode;
188  	enum inv_icm42600_filter filter;
189  	struct inv_sensors_timestamp ts;
190  };
191  
192  /* Virtual register addresses: @bank on MSB (4 upper bits), @address on LSB */
193  
194  /* Bank selection register, available in all banks */
195  #define INV_ICM42600_REG_BANK_SEL			0x76
196  #define INV_ICM42600_BANK_SEL_MASK			GENMASK(2, 0)
197  
198  /* User bank 0 (MSB 0x00) */
199  #define INV_ICM42600_REG_DEVICE_CONFIG			0x0011
200  #define INV_ICM42600_DEVICE_CONFIG_SOFT_RESET		BIT(0)
201  
202  #define INV_ICM42600_REG_DRIVE_CONFIG			0x0013
203  #define INV_ICM42600_DRIVE_CONFIG_I2C_MASK		GENMASK(5, 3)
204  #define INV_ICM42600_DRIVE_CONFIG_I2C(_rate)		\
205  		FIELD_PREP(INV_ICM42600_DRIVE_CONFIG_I2C_MASK, (_rate))
206  #define INV_ICM42600_DRIVE_CONFIG_SPI_MASK		GENMASK(2, 0)
207  #define INV_ICM42600_DRIVE_CONFIG_SPI(_rate)		\
208  		FIELD_PREP(INV_ICM42600_DRIVE_CONFIG_SPI_MASK, (_rate))
209  
210  #define INV_ICM42600_REG_INT_CONFIG			0x0014
211  #define INV_ICM42600_INT_CONFIG_INT2_LATCHED		BIT(5)
212  #define INV_ICM42600_INT_CONFIG_INT2_PUSH_PULL		BIT(4)
213  #define INV_ICM42600_INT_CONFIG_INT2_ACTIVE_HIGH	BIT(3)
214  #define INV_ICM42600_INT_CONFIG_INT2_ACTIVE_LOW		0x00
215  #define INV_ICM42600_INT_CONFIG_INT1_LATCHED		BIT(2)
216  #define INV_ICM42600_INT_CONFIG_INT1_PUSH_PULL		BIT(1)
217  #define INV_ICM42600_INT_CONFIG_INT1_ACTIVE_HIGH	BIT(0)
218  #define INV_ICM42600_INT_CONFIG_INT1_ACTIVE_LOW		0x00
219  
220  #define INV_ICM42600_REG_FIFO_CONFIG			0x0016
221  #define INV_ICM42600_FIFO_CONFIG_MASK			GENMASK(7, 6)
222  #define INV_ICM42600_FIFO_CONFIG_BYPASS			\
223  		FIELD_PREP(INV_ICM42600_FIFO_CONFIG_MASK, 0)
224  #define INV_ICM42600_FIFO_CONFIG_STREAM			\
225  		FIELD_PREP(INV_ICM42600_FIFO_CONFIG_MASK, 1)
226  #define INV_ICM42600_FIFO_CONFIG_STOP_ON_FULL		\
227  		FIELD_PREP(INV_ICM42600_FIFO_CONFIG_MASK, 2)
228  
229  /* all sensor data are 16 bits (2 registers wide) in big-endian */
230  #define INV_ICM42600_REG_TEMP_DATA			0x001D
231  #define INV_ICM42600_REG_ACCEL_DATA_X			0x001F
232  #define INV_ICM42600_REG_ACCEL_DATA_Y			0x0021
233  #define INV_ICM42600_REG_ACCEL_DATA_Z			0x0023
234  #define INV_ICM42600_REG_GYRO_DATA_X			0x0025
235  #define INV_ICM42600_REG_GYRO_DATA_Y			0x0027
236  #define INV_ICM42600_REG_GYRO_DATA_Z			0x0029
237  #define INV_ICM42600_DATA_INVALID			-32768
238  
239  #define INV_ICM42600_REG_INT_STATUS			0x002D
240  #define INV_ICM42600_INT_STATUS_UI_FSYNC		BIT(6)
241  #define INV_ICM42600_INT_STATUS_PLL_RDY			BIT(5)
242  #define INV_ICM42600_INT_STATUS_RESET_DONE		BIT(4)
243  #define INV_ICM42600_INT_STATUS_DATA_RDY		BIT(3)
244  #define INV_ICM42600_INT_STATUS_FIFO_THS		BIT(2)
245  #define INV_ICM42600_INT_STATUS_FIFO_FULL		BIT(1)
246  #define INV_ICM42600_INT_STATUS_AGC_RDY			BIT(0)
247  
248  /*
249   * FIFO access registers
250   * FIFO count is 16 bits (2 registers) big-endian
251   * FIFO data is a continuous read register to read FIFO content
252   */
253  #define INV_ICM42600_REG_FIFO_COUNT			0x002E
254  #define INV_ICM42600_REG_FIFO_DATA			0x0030
255  
256  #define INV_ICM42600_REG_SIGNAL_PATH_RESET		0x004B
257  #define INV_ICM42600_SIGNAL_PATH_RESET_DMP_INIT_EN	BIT(6)
258  #define INV_ICM42600_SIGNAL_PATH_RESET_DMP_MEM_RESET	BIT(5)
259  #define INV_ICM42600_SIGNAL_PATH_RESET_RESET		BIT(3)
260  #define INV_ICM42600_SIGNAL_PATH_RESET_TMST_STROBE	BIT(2)
261  #define INV_ICM42600_SIGNAL_PATH_RESET_FIFO_FLUSH	BIT(1)
262  
263  /* default configuration: all data big-endian and fifo count in bytes */
264  #define INV_ICM42600_REG_INTF_CONFIG0			0x004C
265  #define INV_ICM42600_INTF_CONFIG0_FIFO_HOLD_LAST_DATA	BIT(7)
266  #define INV_ICM42600_INTF_CONFIG0_FIFO_COUNT_REC	BIT(6)
267  #define INV_ICM42600_INTF_CONFIG0_FIFO_COUNT_ENDIAN	BIT(5)
268  #define INV_ICM42600_INTF_CONFIG0_SENSOR_DATA_ENDIAN	BIT(4)
269  #define INV_ICM42600_INTF_CONFIG0_UI_SIFS_CFG_MASK	GENMASK(1, 0)
270  #define INV_ICM42600_INTF_CONFIG0_UI_SIFS_CFG_SPI_DIS	\
271  		FIELD_PREP(INV_ICM42600_INTF_CONFIG0_UI_SIFS_CFG_MASK, 2)
272  #define INV_ICM42600_INTF_CONFIG0_UI_SIFS_CFG_I2C_DIS	\
273  		FIELD_PREP(INV_ICM42600_INTF_CONFIG0_UI_SIFS_CFG_MASK, 3)
274  
275  #define INV_ICM42600_REG_INTF_CONFIG1			0x004D
276  #define INV_ICM42600_INTF_CONFIG1_ACCEL_LP_CLK_RC	BIT(3)
277  
278  #define INV_ICM42600_REG_PWR_MGMT0			0x004E
279  #define INV_ICM42600_PWR_MGMT0_TEMP_DIS			BIT(5)
280  #define INV_ICM42600_PWR_MGMT0_IDLE			BIT(4)
281  #define INV_ICM42600_PWR_MGMT0_GYRO(_mode)		\
282  		FIELD_PREP(GENMASK(3, 2), (_mode))
283  #define INV_ICM42600_PWR_MGMT0_ACCEL(_mode)		\
284  		FIELD_PREP(GENMASK(1, 0), (_mode))
285  
286  #define INV_ICM42600_REG_GYRO_CONFIG0			0x004F
287  #define INV_ICM42600_GYRO_CONFIG0_FS(_fs)		\
288  		FIELD_PREP(GENMASK(7, 5), (_fs))
289  #define INV_ICM42600_GYRO_CONFIG0_ODR(_odr)		\
290  		FIELD_PREP(GENMASK(3, 0), (_odr))
291  
292  #define INV_ICM42600_REG_ACCEL_CONFIG0			0x0050
293  #define INV_ICM42600_ACCEL_CONFIG0_FS(_fs)		\
294  		FIELD_PREP(GENMASK(7, 5), (_fs))
295  #define INV_ICM42600_ACCEL_CONFIG0_ODR(_odr)		\
296  		FIELD_PREP(GENMASK(3, 0), (_odr))
297  
298  #define INV_ICM42600_REG_GYRO_ACCEL_CONFIG0		0x0052
299  #define INV_ICM42600_GYRO_ACCEL_CONFIG0_ACCEL_FILT(_f)	\
300  		FIELD_PREP(GENMASK(7, 4), (_f))
301  #define INV_ICM42600_GYRO_ACCEL_CONFIG0_GYRO_FILT(_f)	\
302  		FIELD_PREP(GENMASK(3, 0), (_f))
303  
304  #define INV_ICM42600_REG_TMST_CONFIG			0x0054
305  #define INV_ICM42600_TMST_CONFIG_MASK			GENMASK(4, 0)
306  #define INV_ICM42600_TMST_CONFIG_TMST_TO_REGS_EN	BIT(4)
307  #define INV_ICM42600_TMST_CONFIG_TMST_RES_16US		BIT(3)
308  #define INV_ICM42600_TMST_CONFIG_TMST_DELTA_EN		BIT(2)
309  #define INV_ICM42600_TMST_CONFIG_TMST_FSYNC_EN		BIT(1)
310  #define INV_ICM42600_TMST_CONFIG_TMST_EN		BIT(0)
311  
312  #define INV_ICM42600_REG_FIFO_CONFIG1			0x005F
313  #define INV_ICM42600_FIFO_CONFIG1_RESUME_PARTIAL_RD	BIT(6)
314  #define INV_ICM42600_FIFO_CONFIG1_WM_GT_TH		BIT(5)
315  #define INV_ICM42600_FIFO_CONFIG1_TMST_FSYNC_EN		BIT(3)
316  #define INV_ICM42600_FIFO_CONFIG1_TEMP_EN		BIT(2)
317  #define INV_ICM42600_FIFO_CONFIG1_GYRO_EN		BIT(1)
318  #define INV_ICM42600_FIFO_CONFIG1_ACCEL_EN		BIT(0)
319  
320  /* FIFO watermark is 16 bits (2 registers wide) in little-endian */
321  #define INV_ICM42600_REG_FIFO_WATERMARK			0x0060
322  #define INV_ICM42600_FIFO_WATERMARK_VAL(_wm)		\
323  		cpu_to_le16((_wm) & GENMASK(11, 0))
324  /* FIFO is 2048 bytes, let 12 samples for reading latency */
325  #define INV_ICM42600_FIFO_WATERMARK_MAX			(2048 - 12 * 16)
326  
327  #define INV_ICM42600_REG_INT_CONFIG1			0x0064
328  #define INV_ICM42600_INT_CONFIG1_TPULSE_DURATION	BIT(6)
329  #define INV_ICM42600_INT_CONFIG1_TDEASSERT_DISABLE	BIT(5)
330  #define INV_ICM42600_INT_CONFIG1_ASYNC_RESET		BIT(4)
331  
332  #define INV_ICM42600_REG_INT_SOURCE0			0x0065
333  #define INV_ICM42600_INT_SOURCE0_UI_FSYNC_INT1_EN	BIT(6)
334  #define INV_ICM42600_INT_SOURCE0_PLL_RDY_INT1_EN	BIT(5)
335  #define INV_ICM42600_INT_SOURCE0_RESET_DONE_INT1_EN	BIT(4)
336  #define INV_ICM42600_INT_SOURCE0_UI_DRDY_INT1_EN	BIT(3)
337  #define INV_ICM42600_INT_SOURCE0_FIFO_THS_INT1_EN	BIT(2)
338  #define INV_ICM42600_INT_SOURCE0_FIFO_FULL_INT1_EN	BIT(1)
339  #define INV_ICM42600_INT_SOURCE0_UI_AGC_RDY_INT1_EN	BIT(0)
340  
341  #define INV_ICM42600_REG_WHOAMI				0x0075
342  #define INV_ICM42600_WHOAMI_ICM42600			0x40
343  #define INV_ICM42600_WHOAMI_ICM42602			0x41
344  #define INV_ICM42600_WHOAMI_ICM42605			0x42
345  #define INV_ICM42600_WHOAMI_ICM42686			0x44
346  #define INV_ICM42600_WHOAMI_ICM42622			0x46
347  #define INV_ICM42600_WHOAMI_ICM42688			0x47
348  #define INV_ICM42600_WHOAMI_ICM42631			0x5C
349  
350  /* User bank 1 (MSB 0x10) */
351  #define INV_ICM42600_REG_SENSOR_CONFIG0			0x1003
352  #define INV_ICM42600_SENSOR_CONFIG0_ZG_DISABLE		BIT(5)
353  #define INV_ICM42600_SENSOR_CONFIG0_YG_DISABLE		BIT(4)
354  #define INV_ICM42600_SENSOR_CONFIG0_XG_DISABLE		BIT(3)
355  #define INV_ICM42600_SENSOR_CONFIG0_ZA_DISABLE		BIT(2)
356  #define INV_ICM42600_SENSOR_CONFIG0_YA_DISABLE		BIT(1)
357  #define INV_ICM42600_SENSOR_CONFIG0_XA_DISABLE		BIT(0)
358  
359  /* Timestamp value is 20 bits (3 registers) in little-endian */
360  #define INV_ICM42600_REG_TMSTVAL			0x1062
361  #define INV_ICM42600_TMSTVAL_MASK			GENMASK(19, 0)
362  
363  #define INV_ICM42600_REG_INTF_CONFIG4			0x107A
364  #define INV_ICM42600_INTF_CONFIG4_I3C_BUS_ONLY		BIT(6)
365  #define INV_ICM42600_INTF_CONFIG4_SPI_AP_4WIRE		BIT(1)
366  
367  #define INV_ICM42600_REG_INTF_CONFIG6			0x107C
368  #define INV_ICM42600_INTF_CONFIG6_MASK			GENMASK(4, 0)
369  #define INV_ICM42600_INTF_CONFIG6_I3C_EN		BIT(4)
370  #define INV_ICM42600_INTF_CONFIG6_I3C_IBI_BYTE_EN	BIT(3)
371  #define INV_ICM42600_INTF_CONFIG6_I3C_IBI_EN		BIT(2)
372  #define INV_ICM42600_INTF_CONFIG6_I3C_DDR_EN		BIT(1)
373  #define INV_ICM42600_INTF_CONFIG6_I3C_SDR_EN		BIT(0)
374  
375  /* User bank 4 (MSB 0x40) */
376  #define INV_ICM42600_REG_INT_SOURCE8			0x404F
377  #define INV_ICM42600_INT_SOURCE8_FSYNC_IBI_EN		BIT(5)
378  #define INV_ICM42600_INT_SOURCE8_PLL_RDY_IBI_EN		BIT(4)
379  #define INV_ICM42600_INT_SOURCE8_UI_DRDY_IBI_EN		BIT(3)
380  #define INV_ICM42600_INT_SOURCE8_FIFO_THS_IBI_EN	BIT(2)
381  #define INV_ICM42600_INT_SOURCE8_FIFO_FULL_IBI_EN	BIT(1)
382  #define INV_ICM42600_INT_SOURCE8_AGC_RDY_IBI_EN		BIT(0)
383  
384  #define INV_ICM42600_REG_OFFSET_USER0			0x4077
385  #define INV_ICM42600_REG_OFFSET_USER1			0x4078
386  #define INV_ICM42600_REG_OFFSET_USER2			0x4079
387  #define INV_ICM42600_REG_OFFSET_USER3			0x407A
388  #define INV_ICM42600_REG_OFFSET_USER4			0x407B
389  #define INV_ICM42600_REG_OFFSET_USER5			0x407C
390  #define INV_ICM42600_REG_OFFSET_USER6			0x407D
391  #define INV_ICM42600_REG_OFFSET_USER7			0x407E
392  #define INV_ICM42600_REG_OFFSET_USER8			0x407F
393  
394  /* Sleep times required by the driver */
395  #define INV_ICM42600_POWER_UP_TIME_MS		100
396  #define INV_ICM42600_RESET_TIME_MS		1
397  #define INV_ICM42600_ACCEL_STARTUP_TIME_MS	20
398  #define INV_ICM42600_GYRO_STARTUP_TIME_MS	60
399  #define INV_ICM42600_GYRO_STOP_TIME_MS		150
400  #define INV_ICM42600_TEMP_STARTUP_TIME_MS	14
401  #define INV_ICM42600_SUSPEND_DELAY_MS		2000
402  
403  typedef int (*inv_icm42600_bus_setup)(struct inv_icm42600_state *);
404  
405  extern const struct regmap_config inv_icm42600_regmap_config;
406  extern const struct dev_pm_ops inv_icm42600_pm_ops;
407  
408  const struct iio_mount_matrix *
409  inv_icm42600_get_mount_matrix(const struct iio_dev *indio_dev,
410  			      const struct iio_chan_spec *chan);
411  
412  uint32_t inv_icm42600_odr_to_period(enum inv_icm42600_odr odr);
413  
414  int inv_icm42600_set_accel_conf(struct inv_icm42600_state *st,
415  				struct inv_icm42600_sensor_conf *conf,
416  				unsigned int *sleep_ms);
417  
418  int inv_icm42600_set_gyro_conf(struct inv_icm42600_state *st,
419  			       struct inv_icm42600_sensor_conf *conf,
420  			       unsigned int *sleep_ms);
421  
422  int inv_icm42600_set_temp_conf(struct inv_icm42600_state *st, bool enable,
423  			       unsigned int *sleep_ms);
424  
425  int inv_icm42600_debugfs_reg(struct iio_dev *indio_dev, unsigned int reg,
426  			     unsigned int writeval, unsigned int *readval);
427  
428  int inv_icm42600_core_probe(struct regmap *regmap, int chip, int irq,
429  			    inv_icm42600_bus_setup bus_setup);
430  
431  struct iio_dev *inv_icm42600_gyro_init(struct inv_icm42600_state *st);
432  
433  int inv_icm42600_gyro_parse_fifo(struct iio_dev *indio_dev);
434  
435  struct iio_dev *inv_icm42600_accel_init(struct inv_icm42600_state *st);
436  
437  int inv_icm42600_accel_parse_fifo(struct iio_dev *indio_dev);
438  
439  #endif
440