1 // SPDX-License-Identifier: GPL-2.0-only
3 * DRV260X haptics driver family
5 * Author: Dan Murphy <dmurphy@ti.com>
7 * Copyright: (C) 2014 Texas Instruments, Inc.
10 #include <linux/i2c.h>
11 #include <linux/input.h>
12 #include <linux/module.h>
13 #include <linux/regmap.h>
14 #include <linux/slab.h>
15 #include <linux/delay.h>
16 #include <linux/gpio/consumer.h>
17 #include <linux/regulator/consumer.h>
19 #include <dt-bindings/input/ti-drv260x.h>
21 #define DRV260X_STATUS 0x0
22 #define DRV260X_MODE 0x1
23 #define DRV260X_RT_PB_IN 0x2
24 #define DRV260X_LIB_SEL 0x3
25 #define DRV260X_WV_SEQ_1 0x4
26 #define DRV260X_WV_SEQ_2 0x5
27 #define DRV260X_WV_SEQ_3 0x6
28 #define DRV260X_WV_SEQ_4 0x7
29 #define DRV260X_WV_SEQ_5 0x8
30 #define DRV260X_WV_SEQ_6 0x9
31 #define DRV260X_WV_SEQ_7 0xa
32 #define DRV260X_WV_SEQ_8 0xb
33 #define DRV260X_GO 0xc
34 #define DRV260X_OVERDRIVE_OFF 0xd
35 #define DRV260X_SUSTAIN_P_OFF 0xe
36 #define DRV260X_SUSTAIN_N_OFF 0xf
37 #define DRV260X_BRAKE_OFF 0x10
38 #define DRV260X_A_TO_V_CTRL 0x11
39 #define DRV260X_A_TO_V_MIN_INPUT 0x12
40 #define DRV260X_A_TO_V_MAX_INPUT 0x13
41 #define DRV260X_A_TO_V_MIN_OUT 0x14
42 #define DRV260X_A_TO_V_MAX_OUT 0x15
43 #define DRV260X_RATED_VOLT 0x16
44 #define DRV260X_OD_CLAMP_VOLT 0x17
45 #define DRV260X_CAL_COMP 0x18
46 #define DRV260X_CAL_BACK_EMF 0x19
47 #define DRV260X_FEEDBACK_CTRL 0x1a
48 #define DRV260X_CTRL1 0x1b
49 #define DRV260X_CTRL2 0x1c
50 #define DRV260X_CTRL3 0x1d
51 #define DRV260X_CTRL4 0x1e
52 #define DRV260X_CTRL5 0x1f
53 #define DRV260X_LRA_LOOP_PERIOD 0x20
54 #define DRV260X_VBAT_MON 0x21
55 #define DRV260X_LRA_RES_PERIOD 0x22
56 #define DRV260X_MAX_REG 0x23
58 #define DRV260X_GO_BIT 0x01
60 /* Library Selection */
61 #define DRV260X_LIB_SEL_MASK 0x07
62 #define DRV260X_LIB_SEL_RAM 0x0
63 #define DRV260X_LIB_SEL_OD 0x1
64 #define DRV260X_LIB_SEL_40_60 0x2
65 #define DRV260X_LIB_SEL_60_80 0x3
66 #define DRV260X_LIB_SEL_100_140 0x4
67 #define DRV260X_LIB_SEL_140_PLUS 0x5
69 #define DRV260X_LIB_SEL_HIZ_MASK 0x10
70 #define DRV260X_LIB_SEL_HIZ_EN 0x01
71 #define DRV260X_LIB_SEL_HIZ_DIS 0
74 #define DRV260X_STANDBY (1 << 6)
75 #define DRV260X_STANDBY_MASK 0x40
76 #define DRV260X_INTERNAL_TRIGGER 0x00
77 #define DRV260X_EXT_TRIGGER_EDGE 0x01
78 #define DRV260X_EXT_TRIGGER_LEVEL 0x02
79 #define DRV260X_PWM_ANALOG_IN 0x03
80 #define DRV260X_AUDIOHAPTIC 0x04
81 #define DRV260X_RT_PLAYBACK 0x05
82 #define DRV260X_DIAGNOSTICS 0x06
83 #define DRV260X_AUTO_CAL 0x07
85 /* Audio to Haptics Control */
86 #define DRV260X_AUDIO_HAPTICS_PEAK_10MS (0 << 2)
87 #define DRV260X_AUDIO_HAPTICS_PEAK_20MS (1 << 2)
88 #define DRV260X_AUDIO_HAPTICS_PEAK_30MS (2 << 2)
89 #define DRV260X_AUDIO_HAPTICS_PEAK_40MS (3 << 2)
91 #define DRV260X_AUDIO_HAPTICS_FILTER_100HZ 0x00
92 #define DRV260X_AUDIO_HAPTICS_FILTER_125HZ 0x01
93 #define DRV260X_AUDIO_HAPTICS_FILTER_150HZ 0x02
94 #define DRV260X_AUDIO_HAPTICS_FILTER_200HZ 0x03
96 /* Min/Max Input/Output Voltages */
97 #define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT 0x19
98 #define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT 0x64
99 #define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT 0x19
100 #define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT 0xFF
102 /* Feedback register */
103 #define DRV260X_FB_REG_ERM_MODE 0x7f
104 #define DRV260X_FB_REG_LRA_MODE (1 << 7)
106 #define DRV260X_BRAKE_FACTOR_MASK 0x1f
107 #define DRV260X_BRAKE_FACTOR_2X (1 << 0)
108 #define DRV260X_BRAKE_FACTOR_3X (2 << 4)
109 #define DRV260X_BRAKE_FACTOR_4X (3 << 4)
110 #define DRV260X_BRAKE_FACTOR_6X (4 << 4)
111 #define DRV260X_BRAKE_FACTOR_8X (5 << 4)
112 #define DRV260X_BRAKE_FACTOR_16 (6 << 4)
113 #define DRV260X_BRAKE_FACTOR_DIS (7 << 4)
115 #define DRV260X_LOOP_GAIN_LOW 0xf3
116 #define DRV260X_LOOP_GAIN_MED (1 << 2)
117 #define DRV260X_LOOP_GAIN_HIGH (2 << 2)
118 #define DRV260X_LOOP_GAIN_VERY_HIGH (3 << 2)
120 #define DRV260X_BEMF_GAIN_0 0xfc
121 #define DRV260X_BEMF_GAIN_1 (1 << 0)
122 #define DRV260X_BEMF_GAIN_2 (2 << 0)
123 #define DRV260X_BEMF_GAIN_3 (3 << 0)
125 /* Control 1 register */
126 #define DRV260X_AC_CPLE_EN (1 << 5)
127 #define DRV260X_STARTUP_BOOST (1 << 7)
129 /* Control 2 register */
131 #define DRV260X_IDISS_TIME_45 0
132 #define DRV260X_IDISS_TIME_75 (1 << 0)
133 #define DRV260X_IDISS_TIME_150 (1 << 1)
134 #define DRV260X_IDISS_TIME_225 0x03
136 #define DRV260X_BLANK_TIME_45 (0 << 2)
137 #define DRV260X_BLANK_TIME_75 (1 << 2)
138 #define DRV260X_BLANK_TIME_150 (2 << 2)
139 #define DRV260X_BLANK_TIME_225 (3 << 2)
141 #define DRV260X_SAMP_TIME_150 (0 << 4)
142 #define DRV260X_SAMP_TIME_200 (1 << 4)
143 #define DRV260X_SAMP_TIME_250 (2 << 4)
144 #define DRV260X_SAMP_TIME_300 (3 << 4)
146 #define DRV260X_BRAKE_STABILIZER (1 << 6)
147 #define DRV260X_UNIDIR_IN (0 << 7)
148 #define DRV260X_BIDIR_IN (1 << 7)
150 /* Control 3 Register */
151 #define DRV260X_LRA_OPEN_LOOP (1 << 0)
152 #define DRV260X_ANANLOG_IN (1 << 1)
153 #define DRV260X_LRA_DRV_MODE (1 << 2)
154 #define DRV260X_RTP_UNSIGNED_DATA (1 << 3)
155 #define DRV260X_SUPPLY_COMP_DIS (1 << 4)
156 #define DRV260X_ERM_OPEN_LOOP (1 << 5)
157 #define DRV260X_NG_THRESH_0 (0 << 6)
158 #define DRV260X_NG_THRESH_2 (1 << 6)
159 #define DRV260X_NG_THRESH_4 (2 << 6)
160 #define DRV260X_NG_THRESH_8 (3 << 6)
162 /* Control 4 Register */
163 #define DRV260X_AUTOCAL_TIME_150MS (0 << 4)
164 #define DRV260X_AUTOCAL_TIME_250MS (1 << 4)
165 #define DRV260X_AUTOCAL_TIME_500MS (2 << 4)
166 #define DRV260X_AUTOCAL_TIME_1000MS (3 << 4)
169 * struct drv260x_data -
170 * @input_dev - Pointer to the input device
171 * @client - Pointer to the I2C client
172 * @regmap - Register map of the device
173 * @work - Work item used to off load the enable/disable of the vibration
174 * @enable_gpio - Pointer to the gpio used for enable/disabling
175 * @regulator - Pointer to the regulator for the IC
176 * @magnitude - Magnitude of the vibration event
177 * @mode - The operating mode of the IC (LRA_NO_CAL, ERM or LRA)
178 * @library - The vibration library to be used
179 * @rated_voltage - The rated_voltage of the actuator
180 * @overdriver_voltage - The over drive voltage of the actuator
182 struct drv260x_data {
183 struct input_dev *input_dev;
184 struct i2c_client *client;
185 struct regmap *regmap;
186 struct work_struct work;
187 struct gpio_desc *enable_gpio;
188 struct regulator *regulator;
193 int overdrive_voltage;
196 static const struct reg_default drv260x_reg_defs[] = {
197 { DRV260X_STATUS, 0xe0 },
198 { DRV260X_MODE, 0x40 },
199 { DRV260X_RT_PB_IN, 0x00 },
200 { DRV260X_LIB_SEL, 0x00 },
201 { DRV260X_WV_SEQ_1, 0x01 },
202 { DRV260X_WV_SEQ_2, 0x00 },
203 { DRV260X_WV_SEQ_3, 0x00 },
204 { DRV260X_WV_SEQ_4, 0x00 },
205 { DRV260X_WV_SEQ_5, 0x00 },
206 { DRV260X_WV_SEQ_6, 0x00 },
207 { DRV260X_WV_SEQ_7, 0x00 },
208 { DRV260X_WV_SEQ_8, 0x00 },
209 { DRV260X_GO, 0x00 },
210 { DRV260X_OVERDRIVE_OFF, 0x00 },
211 { DRV260X_SUSTAIN_P_OFF, 0x00 },
212 { DRV260X_SUSTAIN_N_OFF, 0x00 },
213 { DRV260X_BRAKE_OFF, 0x00 },
214 { DRV260X_A_TO_V_CTRL, 0x05 },
215 { DRV260X_A_TO_V_MIN_INPUT, 0x19 },
216 { DRV260X_A_TO_V_MAX_INPUT, 0xff },
217 { DRV260X_A_TO_V_MIN_OUT, 0x19 },
218 { DRV260X_A_TO_V_MAX_OUT, 0xff },
219 { DRV260X_RATED_VOLT, 0x3e },
220 { DRV260X_OD_CLAMP_VOLT, 0x8c },
221 { DRV260X_CAL_COMP, 0x0c },
222 { DRV260X_CAL_BACK_EMF, 0x6c },
223 { DRV260X_FEEDBACK_CTRL, 0x36 },
224 { DRV260X_CTRL1, 0x93 },
225 { DRV260X_CTRL2, 0xfa },
226 { DRV260X_CTRL3, 0xa0 },
227 { DRV260X_CTRL4, 0x20 },
228 { DRV260X_CTRL5, 0x80 },
229 { DRV260X_LRA_LOOP_PERIOD, 0x33 },
230 { DRV260X_VBAT_MON, 0x00 },
231 { DRV260X_LRA_RES_PERIOD, 0x00 },
234 #define DRV260X_DEF_RATED_VOLT 0x90
235 #define DRV260X_DEF_OD_CLAMP_VOLT 0x90
238 * Rated and Overdriver Voltages:
239 * Calculated using the formula r = v * 255 / 5.6
240 * where r is what will be written to the register
241 * and v is the rated or overdriver voltage of the actuator
243 static int drv260x_calculate_voltage(unsigned int voltage)
245 return (voltage * 255 / 5600);
248 static void drv260x_worker(struct work_struct *work)
250 struct drv260x_data *haptics = container_of(work, struct drv260x_data, work);
253 gpiod_set_value(haptics->enable_gpio, 1);
254 /* Data sheet says to wait 250us before trying to communicate */
257 error = regmap_write(haptics->regmap,
258 DRV260X_MODE, DRV260X_RT_PLAYBACK);
260 dev_err(&haptics->client->dev,
261 "Failed to write set mode: %d\n", error);
263 error = regmap_write(haptics->regmap,
264 DRV260X_RT_PB_IN, haptics->magnitude);
266 dev_err(&haptics->client->dev,
267 "Failed to set magnitude: %d\n", error);
271 static int drv260x_haptics_play(struct input_dev *input, void *data,
272 struct ff_effect *effect)
274 struct drv260x_data *haptics = input_get_drvdata(input);
276 haptics->mode = DRV260X_LRA_NO_CAL_MODE;
278 if (effect->u.rumble.strong_magnitude > 0)
279 haptics->magnitude = effect->u.rumble.strong_magnitude;
280 else if (effect->u.rumble.weak_magnitude > 0)
281 haptics->magnitude = effect->u.rumble.weak_magnitude;
283 haptics->magnitude = 0;
285 schedule_work(&haptics->work);
290 static void drv260x_close(struct input_dev *input)
292 struct drv260x_data *haptics = input_get_drvdata(input);
295 cancel_work_sync(&haptics->work);
297 error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY);
299 dev_err(&haptics->client->dev,
300 "Failed to enter standby mode: %d\n", error);
302 gpiod_set_value(haptics->enable_gpio, 0);
305 static const struct reg_sequence drv260x_lra_cal_regs[] = {
306 { DRV260X_MODE, DRV260X_AUTO_CAL },
307 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 },
308 { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
309 DRV260X_BRAKE_FACTOR_4X | DRV260X_LOOP_GAIN_HIGH },
312 static const struct reg_sequence drv260x_lra_init_regs[] = {
313 { DRV260X_MODE, DRV260X_RT_PLAYBACK },
314 { DRV260X_A_TO_V_CTRL, DRV260X_AUDIO_HAPTICS_PEAK_20MS |
315 DRV260X_AUDIO_HAPTICS_FILTER_125HZ },
316 { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
317 { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
318 { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
319 { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
320 { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
321 DRV260X_BRAKE_FACTOR_2X | DRV260X_LOOP_GAIN_MED |
322 DRV260X_BEMF_GAIN_3 },
323 { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
324 { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 },
325 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ANANLOG_IN },
326 { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
329 static const struct reg_sequence drv260x_erm_cal_regs[] = {
330 { DRV260X_MODE, DRV260X_AUTO_CAL },
331 { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
332 { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
333 { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
334 { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
335 { DRV260X_FEEDBACK_CTRL, DRV260X_BRAKE_FACTOR_3X |
336 DRV260X_LOOP_GAIN_MED | DRV260X_BEMF_GAIN_2 },
337 { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
338 { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 | DRV260X_BLANK_TIME_75 |
339 DRV260X_IDISS_TIME_75 },
340 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ERM_OPEN_LOOP },
341 { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
344 static int drv260x_init(struct drv260x_data *haptics)
347 unsigned int cal_buf;
349 error = regmap_write(haptics->regmap,
350 DRV260X_RATED_VOLT, haptics->rated_voltage);
352 dev_err(&haptics->client->dev,
353 "Failed to write DRV260X_RATED_VOLT register: %d\n",
358 error = regmap_write(haptics->regmap,
359 DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage);
361 dev_err(&haptics->client->dev,
362 "Failed to write DRV260X_OD_CLAMP_VOLT register: %d\n",
367 switch (haptics->mode) {
368 case DRV260X_LRA_MODE:
369 error = regmap_register_patch(haptics->regmap,
370 drv260x_lra_cal_regs,
371 ARRAY_SIZE(drv260x_lra_cal_regs));
373 dev_err(&haptics->client->dev,
374 "Failed to write LRA calibration registers: %d\n",
381 case DRV260X_ERM_MODE:
382 error = regmap_register_patch(haptics->regmap,
383 drv260x_erm_cal_regs,
384 ARRAY_SIZE(drv260x_erm_cal_regs));
386 dev_err(&haptics->client->dev,
387 "Failed to write ERM calibration registers: %d\n",
392 error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
393 DRV260X_LIB_SEL_MASK,
396 dev_err(&haptics->client->dev,
397 "Failed to write DRV260X_LIB_SEL register: %d\n",
405 error = regmap_register_patch(haptics->regmap,
406 drv260x_lra_init_regs,
407 ARRAY_SIZE(drv260x_lra_init_regs));
409 dev_err(&haptics->client->dev,
410 "Failed to write LRA init registers: %d\n",
415 error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
416 DRV260X_LIB_SEL_MASK,
419 dev_err(&haptics->client->dev,
420 "Failed to write DRV260X_LIB_SEL register: %d\n",
425 /* No need to set GO bit here */
429 error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT);
431 dev_err(&haptics->client->dev,
432 "Failed to write GO register: %d\n",
438 usleep_range(15000, 15500);
439 error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf);
441 dev_err(&haptics->client->dev,
442 "Failed to read GO register: %d\n",
446 } while (cal_buf == DRV260X_GO_BIT);
451 static const struct regmap_config drv260x_regmap_config = {
455 .max_register = DRV260X_MAX_REG,
456 .reg_defaults = drv260x_reg_defs,
457 .num_reg_defaults = ARRAY_SIZE(drv260x_reg_defs),
458 .cache_type = REGCACHE_NONE,
461 static int drv260x_probe(struct i2c_client *client,
462 const struct i2c_device_id *id)
464 struct device *dev = &client->dev;
465 struct drv260x_data *haptics;
469 haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
473 error = device_property_read_u32(dev, "mode", &haptics->mode);
475 dev_err(dev, "Can't fetch 'mode' property: %d\n", error);
479 if (haptics->mode < DRV260X_LRA_MODE ||
480 haptics->mode > DRV260X_ERM_MODE) {
481 dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);
485 error = device_property_read_u32(dev, "library-sel", &haptics->library);
487 dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error);
491 if (haptics->library < DRV260X_LIB_EMPTY ||
492 haptics->library > DRV260X_ERM_LIB_F) {
494 "Library value is invalid: %i\n", haptics->library);
498 if (haptics->mode == DRV260X_LRA_MODE &&
499 haptics->library != DRV260X_LIB_EMPTY &&
500 haptics->library != DRV260X_LIB_LRA) {
501 dev_err(dev, "LRA Mode with ERM Library mismatch\n");
505 if (haptics->mode == DRV260X_ERM_MODE &&
506 (haptics->library == DRV260X_LIB_EMPTY ||
507 haptics->library == DRV260X_LIB_LRA)) {
508 dev_err(dev, "ERM Mode with LRA Library mismatch\n");
512 error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
513 haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :
514 drv260x_calculate_voltage(voltage);
516 error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);
517 haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :
518 drv260x_calculate_voltage(voltage);
520 haptics->regulator = devm_regulator_get(dev, "vbat");
521 if (IS_ERR(haptics->regulator)) {
522 error = PTR_ERR(haptics->regulator);
523 dev_err(dev, "unable to get regulator, error: %d\n", error);
527 haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable",
529 if (IS_ERR(haptics->enable_gpio))
530 return PTR_ERR(haptics->enable_gpio);
532 haptics->input_dev = devm_input_allocate_device(dev);
533 if (!haptics->input_dev) {
534 dev_err(dev, "Failed to allocate input device\n");
538 haptics->input_dev->name = "drv260x:haptics";
539 haptics->input_dev->close = drv260x_close;
540 input_set_drvdata(haptics->input_dev, haptics);
541 input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
543 error = input_ff_create_memless(haptics->input_dev, NULL,
544 drv260x_haptics_play);
546 dev_err(dev, "input_ff_create() failed: %d\n", error);
550 INIT_WORK(&haptics->work, drv260x_worker);
552 haptics->client = client;
553 i2c_set_clientdata(client, haptics);
555 haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
556 if (IS_ERR(haptics->regmap)) {
557 error = PTR_ERR(haptics->regmap);
558 dev_err(dev, "Failed to allocate register map: %d\n", error);
562 error = drv260x_init(haptics);
564 dev_err(dev, "Device init failed: %d\n", error);
568 error = input_register_device(haptics->input_dev);
570 dev_err(dev, "couldn't register input device: %d\n", error);
577 static int __maybe_unused drv260x_suspend(struct device *dev)
579 struct drv260x_data *haptics = dev_get_drvdata(dev);
582 mutex_lock(&haptics->input_dev->mutex);
584 if (haptics->input_dev->users) {
585 ret = regmap_update_bits(haptics->regmap,
587 DRV260X_STANDBY_MASK,
590 dev_err(dev, "Failed to set standby mode\n");
594 gpiod_set_value(haptics->enable_gpio, 0);
596 ret = regulator_disable(haptics->regulator);
598 dev_err(dev, "Failed to disable regulator\n");
599 regmap_update_bits(haptics->regmap,
601 DRV260X_STANDBY_MASK, 0);
605 mutex_unlock(&haptics->input_dev->mutex);
609 static int __maybe_unused drv260x_resume(struct device *dev)
611 struct drv260x_data *haptics = dev_get_drvdata(dev);
614 mutex_lock(&haptics->input_dev->mutex);
616 if (haptics->input_dev->users) {
617 ret = regulator_enable(haptics->regulator);
619 dev_err(dev, "Failed to enable regulator\n");
623 ret = regmap_update_bits(haptics->regmap,
625 DRV260X_STANDBY_MASK, 0);
627 dev_err(dev, "Failed to unset standby mode\n");
628 regulator_disable(haptics->regulator);
632 gpiod_set_value(haptics->enable_gpio, 1);
636 mutex_unlock(&haptics->input_dev->mutex);
640 static SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume);
642 static const struct i2c_device_id drv260x_id[] = {
646 MODULE_DEVICE_TABLE(i2c, drv260x_id);
648 static const struct of_device_id drv260x_of_match[] = {
649 { .compatible = "ti,drv2604", },
650 { .compatible = "ti,drv2604l", },
651 { .compatible = "ti,drv2605", },
652 { .compatible = "ti,drv2605l", },
655 MODULE_DEVICE_TABLE(of, drv260x_of_match);
657 static struct i2c_driver drv260x_driver = {
658 .probe = drv260x_probe,
660 .name = "drv260x-haptics",
661 .of_match_table = drv260x_of_match,
662 .pm = &drv260x_pm_ops,
664 .id_table = drv260x_id,
666 module_i2c_driver(drv260x_driver);
668 MODULE_DESCRIPTION("TI DRV260x haptics driver");
669 MODULE_LICENSE("GPL");
670 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");