2 * DRV260X haptics driver family
4 * Author: Dan Murphy <dmurphy@ti.com>
6 * Copyright: (C) 2014 Texas Instruments, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
18 #include <linux/i2c.h>
19 #include <linux/input.h>
20 #include <linux/module.h>
21 #include <linux/regmap.h>
22 #include <linux/slab.h>
23 #include <linux/delay.h>
24 #include <linux/gpio/consumer.h>
25 #include <linux/regulator/consumer.h>
27 #include <dt-bindings/input/ti-drv260x.h>
29 #define DRV260X_STATUS 0x0
30 #define DRV260X_MODE 0x1
31 #define DRV260X_RT_PB_IN 0x2
32 #define DRV260X_LIB_SEL 0x3
33 #define DRV260X_WV_SEQ_1 0x4
34 #define DRV260X_WV_SEQ_2 0x5
35 #define DRV260X_WV_SEQ_3 0x6
36 #define DRV260X_WV_SEQ_4 0x7
37 #define DRV260X_WV_SEQ_5 0x8
38 #define DRV260X_WV_SEQ_6 0x9
39 #define DRV260X_WV_SEQ_7 0xa
40 #define DRV260X_WV_SEQ_8 0xb
41 #define DRV260X_GO 0xc
42 #define DRV260X_OVERDRIVE_OFF 0xd
43 #define DRV260X_SUSTAIN_P_OFF 0xe
44 #define DRV260X_SUSTAIN_N_OFF 0xf
45 #define DRV260X_BRAKE_OFF 0x10
46 #define DRV260X_A_TO_V_CTRL 0x11
47 #define DRV260X_A_TO_V_MIN_INPUT 0x12
48 #define DRV260X_A_TO_V_MAX_INPUT 0x13
49 #define DRV260X_A_TO_V_MIN_OUT 0x14
50 #define DRV260X_A_TO_V_MAX_OUT 0x15
51 #define DRV260X_RATED_VOLT 0x16
52 #define DRV260X_OD_CLAMP_VOLT 0x17
53 #define DRV260X_CAL_COMP 0x18
54 #define DRV260X_CAL_BACK_EMF 0x19
55 #define DRV260X_FEEDBACK_CTRL 0x1a
56 #define DRV260X_CTRL1 0x1b
57 #define DRV260X_CTRL2 0x1c
58 #define DRV260X_CTRL3 0x1d
59 #define DRV260X_CTRL4 0x1e
60 #define DRV260X_CTRL5 0x1f
61 #define DRV260X_LRA_LOOP_PERIOD 0x20
62 #define DRV260X_VBAT_MON 0x21
63 #define DRV260X_LRA_RES_PERIOD 0x22
64 #define DRV260X_MAX_REG 0x23
66 #define DRV260X_GO_BIT 0x01
68 /* Library Selection */
69 #define DRV260X_LIB_SEL_MASK 0x07
70 #define DRV260X_LIB_SEL_RAM 0x0
71 #define DRV260X_LIB_SEL_OD 0x1
72 #define DRV260X_LIB_SEL_40_60 0x2
73 #define DRV260X_LIB_SEL_60_80 0x3
74 #define DRV260X_LIB_SEL_100_140 0x4
75 #define DRV260X_LIB_SEL_140_PLUS 0x5
77 #define DRV260X_LIB_SEL_HIZ_MASK 0x10
78 #define DRV260X_LIB_SEL_HIZ_EN 0x01
79 #define DRV260X_LIB_SEL_HIZ_DIS 0
82 #define DRV260X_STANDBY (1 << 6)
83 #define DRV260X_STANDBY_MASK 0x40
84 #define DRV260X_INTERNAL_TRIGGER 0x00
85 #define DRV260X_EXT_TRIGGER_EDGE 0x01
86 #define DRV260X_EXT_TRIGGER_LEVEL 0x02
87 #define DRV260X_PWM_ANALOG_IN 0x03
88 #define DRV260X_AUDIOHAPTIC 0x04
89 #define DRV260X_RT_PLAYBACK 0x05
90 #define DRV260X_DIAGNOSTICS 0x06
91 #define DRV260X_AUTO_CAL 0x07
93 /* Audio to Haptics Control */
94 #define DRV260X_AUDIO_HAPTICS_PEAK_10MS (0 << 2)
95 #define DRV260X_AUDIO_HAPTICS_PEAK_20MS (1 << 2)
96 #define DRV260X_AUDIO_HAPTICS_PEAK_30MS (2 << 2)
97 #define DRV260X_AUDIO_HAPTICS_PEAK_40MS (3 << 2)
99 #define DRV260X_AUDIO_HAPTICS_FILTER_100HZ 0x00
100 #define DRV260X_AUDIO_HAPTICS_FILTER_125HZ 0x01
101 #define DRV260X_AUDIO_HAPTICS_FILTER_150HZ 0x02
102 #define DRV260X_AUDIO_HAPTICS_FILTER_200HZ 0x03
104 /* Min/Max Input/Output Voltages */
105 #define DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT 0x19
106 #define DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT 0x64
107 #define DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT 0x19
108 #define DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT 0xFF
110 /* Feedback register */
111 #define DRV260X_FB_REG_ERM_MODE 0x7f
112 #define DRV260X_FB_REG_LRA_MODE (1 << 7)
114 #define DRV260X_BRAKE_FACTOR_MASK 0x1f
115 #define DRV260X_BRAKE_FACTOR_2X (1 << 0)
116 #define DRV260X_BRAKE_FACTOR_3X (2 << 4)
117 #define DRV260X_BRAKE_FACTOR_4X (3 << 4)
118 #define DRV260X_BRAKE_FACTOR_6X (4 << 4)
119 #define DRV260X_BRAKE_FACTOR_8X (5 << 4)
120 #define DRV260X_BRAKE_FACTOR_16 (6 << 4)
121 #define DRV260X_BRAKE_FACTOR_DIS (7 << 4)
123 #define DRV260X_LOOP_GAIN_LOW 0xf3
124 #define DRV260X_LOOP_GAIN_MED (1 << 2)
125 #define DRV260X_LOOP_GAIN_HIGH (2 << 2)
126 #define DRV260X_LOOP_GAIN_VERY_HIGH (3 << 2)
128 #define DRV260X_BEMF_GAIN_0 0xfc
129 #define DRV260X_BEMF_GAIN_1 (1 << 0)
130 #define DRV260X_BEMF_GAIN_2 (2 << 0)
131 #define DRV260X_BEMF_GAIN_3 (3 << 0)
133 /* Control 1 register */
134 #define DRV260X_AC_CPLE_EN (1 << 5)
135 #define DRV260X_STARTUP_BOOST (1 << 7)
137 /* Control 2 register */
139 #define DRV260X_IDISS_TIME_45 0
140 #define DRV260X_IDISS_TIME_75 (1 << 0)
141 #define DRV260X_IDISS_TIME_150 (1 << 1)
142 #define DRV260X_IDISS_TIME_225 0x03
144 #define DRV260X_BLANK_TIME_45 (0 << 2)
145 #define DRV260X_BLANK_TIME_75 (1 << 2)
146 #define DRV260X_BLANK_TIME_150 (2 << 2)
147 #define DRV260X_BLANK_TIME_225 (3 << 2)
149 #define DRV260X_SAMP_TIME_150 (0 << 4)
150 #define DRV260X_SAMP_TIME_200 (1 << 4)
151 #define DRV260X_SAMP_TIME_250 (2 << 4)
152 #define DRV260X_SAMP_TIME_300 (3 << 4)
154 #define DRV260X_BRAKE_STABILIZER (1 << 6)
155 #define DRV260X_UNIDIR_IN (0 << 7)
156 #define DRV260X_BIDIR_IN (1 << 7)
158 /* Control 3 Register */
159 #define DRV260X_LRA_OPEN_LOOP (1 << 0)
160 #define DRV260X_ANANLOG_IN (1 << 1)
161 #define DRV260X_LRA_DRV_MODE (1 << 2)
162 #define DRV260X_RTP_UNSIGNED_DATA (1 << 3)
163 #define DRV260X_SUPPLY_COMP_DIS (1 << 4)
164 #define DRV260X_ERM_OPEN_LOOP (1 << 5)
165 #define DRV260X_NG_THRESH_0 (0 << 6)
166 #define DRV260X_NG_THRESH_2 (1 << 6)
167 #define DRV260X_NG_THRESH_4 (2 << 6)
168 #define DRV260X_NG_THRESH_8 (3 << 6)
170 /* Control 4 Register */
171 #define DRV260X_AUTOCAL_TIME_150MS (0 << 4)
172 #define DRV260X_AUTOCAL_TIME_250MS (1 << 4)
173 #define DRV260X_AUTOCAL_TIME_500MS (2 << 4)
174 #define DRV260X_AUTOCAL_TIME_1000MS (3 << 4)
177 * struct drv260x_data -
178 * @input_dev - Pointer to the input device
179 * @client - Pointer to the I2C client
180 * @regmap - Register map of the device
181 * @work - Work item used to off load the enable/disable of the vibration
182 * @enable_gpio - Pointer to the gpio used for enable/disabling
183 * @regulator - Pointer to the regulator for the IC
184 * @magnitude - Magnitude of the vibration event
185 * @mode - The operating mode of the IC (LRA_NO_CAL, ERM or LRA)
186 * @library - The vibration library to be used
187 * @rated_voltage - The rated_voltage of the actuator
188 * @overdriver_voltage - The over drive voltage of the actuator
190 struct drv260x_data {
191 struct input_dev *input_dev;
192 struct i2c_client *client;
193 struct regmap *regmap;
194 struct work_struct work;
195 struct gpio_desc *enable_gpio;
196 struct regulator *regulator;
201 int overdrive_voltage;
204 static const struct reg_default drv260x_reg_defs[] = {
205 { DRV260X_STATUS, 0xe0 },
206 { DRV260X_MODE, 0x40 },
207 { DRV260X_RT_PB_IN, 0x00 },
208 { DRV260X_LIB_SEL, 0x00 },
209 { DRV260X_WV_SEQ_1, 0x01 },
210 { DRV260X_WV_SEQ_2, 0x00 },
211 { DRV260X_WV_SEQ_3, 0x00 },
212 { DRV260X_WV_SEQ_4, 0x00 },
213 { DRV260X_WV_SEQ_5, 0x00 },
214 { DRV260X_WV_SEQ_6, 0x00 },
215 { DRV260X_WV_SEQ_7, 0x00 },
216 { DRV260X_WV_SEQ_8, 0x00 },
217 { DRV260X_GO, 0x00 },
218 { DRV260X_OVERDRIVE_OFF, 0x00 },
219 { DRV260X_SUSTAIN_P_OFF, 0x00 },
220 { DRV260X_SUSTAIN_N_OFF, 0x00 },
221 { DRV260X_BRAKE_OFF, 0x00 },
222 { DRV260X_A_TO_V_CTRL, 0x05 },
223 { DRV260X_A_TO_V_MIN_INPUT, 0x19 },
224 { DRV260X_A_TO_V_MAX_INPUT, 0xff },
225 { DRV260X_A_TO_V_MIN_OUT, 0x19 },
226 { DRV260X_A_TO_V_MAX_OUT, 0xff },
227 { DRV260X_RATED_VOLT, 0x3e },
228 { DRV260X_OD_CLAMP_VOLT, 0x8c },
229 { DRV260X_CAL_COMP, 0x0c },
230 { DRV260X_CAL_BACK_EMF, 0x6c },
231 { DRV260X_FEEDBACK_CTRL, 0x36 },
232 { DRV260X_CTRL1, 0x93 },
233 { DRV260X_CTRL2, 0xfa },
234 { DRV260X_CTRL3, 0xa0 },
235 { DRV260X_CTRL4, 0x20 },
236 { DRV260X_CTRL5, 0x80 },
237 { DRV260X_LRA_LOOP_PERIOD, 0x33 },
238 { DRV260X_VBAT_MON, 0x00 },
239 { DRV260X_LRA_RES_PERIOD, 0x00 },
242 #define DRV260X_DEF_RATED_VOLT 0x90
243 #define DRV260X_DEF_OD_CLAMP_VOLT 0x90
246 * Rated and Overdriver Voltages:
247 * Calculated using the formula r = v * 255 / 5.6
248 * where r is what will be written to the register
249 * and v is the rated or overdriver voltage of the actuator
251 static int drv260x_calculate_voltage(unsigned int voltage)
253 return (voltage * 255 / 5600);
256 static void drv260x_worker(struct work_struct *work)
258 struct drv260x_data *haptics = container_of(work, struct drv260x_data, work);
261 gpiod_set_value(haptics->enable_gpio, 1);
262 /* Data sheet says to wait 250us before trying to communicate */
265 error = regmap_write(haptics->regmap,
266 DRV260X_MODE, DRV260X_RT_PLAYBACK);
268 dev_err(&haptics->client->dev,
269 "Failed to write set mode: %d\n", error);
271 error = regmap_write(haptics->regmap,
272 DRV260X_RT_PB_IN, haptics->magnitude);
274 dev_err(&haptics->client->dev,
275 "Failed to set magnitude: %d\n", error);
279 static int drv260x_haptics_play(struct input_dev *input, void *data,
280 struct ff_effect *effect)
282 struct drv260x_data *haptics = input_get_drvdata(input);
284 haptics->mode = DRV260X_LRA_NO_CAL_MODE;
286 if (effect->u.rumble.strong_magnitude > 0)
287 haptics->magnitude = effect->u.rumble.strong_magnitude;
288 else if (effect->u.rumble.weak_magnitude > 0)
289 haptics->magnitude = effect->u.rumble.weak_magnitude;
291 haptics->magnitude = 0;
293 schedule_work(&haptics->work);
298 static void drv260x_close(struct input_dev *input)
300 struct drv260x_data *haptics = input_get_drvdata(input);
303 cancel_work_sync(&haptics->work);
305 error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY);
307 dev_err(&haptics->client->dev,
308 "Failed to enter standby mode: %d\n", error);
310 gpiod_set_value(haptics->enable_gpio, 0);
313 static const struct reg_sequence drv260x_lra_cal_regs[] = {
314 { DRV260X_MODE, DRV260X_AUTO_CAL },
315 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 },
316 { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
317 DRV260X_BRAKE_FACTOR_4X | DRV260X_LOOP_GAIN_HIGH },
320 static const struct reg_sequence drv260x_lra_init_regs[] = {
321 { DRV260X_MODE, DRV260X_RT_PLAYBACK },
322 { DRV260X_A_TO_V_CTRL, DRV260X_AUDIO_HAPTICS_PEAK_20MS |
323 DRV260X_AUDIO_HAPTICS_FILTER_125HZ },
324 { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
325 { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
326 { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
327 { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
328 { DRV260X_FEEDBACK_CTRL, DRV260X_FB_REG_LRA_MODE |
329 DRV260X_BRAKE_FACTOR_2X | DRV260X_LOOP_GAIN_MED |
330 DRV260X_BEMF_GAIN_3 },
331 { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
332 { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 },
333 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ANANLOG_IN },
334 { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
337 static const struct reg_sequence drv260x_erm_cal_regs[] = {
338 { DRV260X_MODE, DRV260X_AUTO_CAL },
339 { DRV260X_A_TO_V_MIN_INPUT, DRV260X_AUDIO_HAPTICS_MIN_IN_VOLT },
340 { DRV260X_A_TO_V_MAX_INPUT, DRV260X_AUDIO_HAPTICS_MAX_IN_VOLT },
341 { DRV260X_A_TO_V_MIN_OUT, DRV260X_AUDIO_HAPTICS_MIN_OUT_VOLT },
342 { DRV260X_A_TO_V_MAX_OUT, DRV260X_AUDIO_HAPTICS_MAX_OUT_VOLT },
343 { DRV260X_FEEDBACK_CTRL, DRV260X_BRAKE_FACTOR_3X |
344 DRV260X_LOOP_GAIN_MED | DRV260X_BEMF_GAIN_2 },
345 { DRV260X_CTRL1, DRV260X_STARTUP_BOOST },
346 { DRV260X_CTRL2, DRV260X_SAMP_TIME_250 | DRV260X_BLANK_TIME_75 |
347 DRV260X_IDISS_TIME_75 },
348 { DRV260X_CTRL3, DRV260X_NG_THRESH_2 | DRV260X_ERM_OPEN_LOOP },
349 { DRV260X_CTRL4, DRV260X_AUTOCAL_TIME_500MS },
352 static int drv260x_init(struct drv260x_data *haptics)
355 unsigned int cal_buf;
357 error = regmap_write(haptics->regmap,
358 DRV260X_RATED_VOLT, haptics->rated_voltage);
360 dev_err(&haptics->client->dev,
361 "Failed to write DRV260X_RATED_VOLT register: %d\n",
366 error = regmap_write(haptics->regmap,
367 DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage);
369 dev_err(&haptics->client->dev,
370 "Failed to write DRV260X_OD_CLAMP_VOLT register: %d\n",
375 switch (haptics->mode) {
376 case DRV260X_LRA_MODE:
377 error = regmap_register_patch(haptics->regmap,
378 drv260x_lra_cal_regs,
379 ARRAY_SIZE(drv260x_lra_cal_regs));
381 dev_err(&haptics->client->dev,
382 "Failed to write LRA calibration registers: %d\n",
389 case DRV260X_ERM_MODE:
390 error = regmap_register_patch(haptics->regmap,
391 drv260x_erm_cal_regs,
392 ARRAY_SIZE(drv260x_erm_cal_regs));
394 dev_err(&haptics->client->dev,
395 "Failed to write ERM calibration registers: %d\n",
400 error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
401 DRV260X_LIB_SEL_MASK,
404 dev_err(&haptics->client->dev,
405 "Failed to write DRV260X_LIB_SEL register: %d\n",
413 error = regmap_register_patch(haptics->regmap,
414 drv260x_lra_init_regs,
415 ARRAY_SIZE(drv260x_lra_init_regs));
417 dev_err(&haptics->client->dev,
418 "Failed to write LRA init registers: %d\n",
423 error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,
424 DRV260X_LIB_SEL_MASK,
427 dev_err(&haptics->client->dev,
428 "Failed to write DRV260X_LIB_SEL register: %d\n",
433 /* No need to set GO bit here */
437 error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT);
439 dev_err(&haptics->client->dev,
440 "Failed to write GO register: %d\n",
446 error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf);
448 dev_err(&haptics->client->dev,
449 "Failed to read GO register: %d\n",
453 } while (cal_buf == DRV260X_GO_BIT);
458 static const struct regmap_config drv260x_regmap_config = {
462 .max_register = DRV260X_MAX_REG,
463 .reg_defaults = drv260x_reg_defs,
464 .num_reg_defaults = ARRAY_SIZE(drv260x_reg_defs),
465 .cache_type = REGCACHE_NONE,
468 static int drv260x_probe(struct i2c_client *client,
469 const struct i2c_device_id *id)
471 struct device *dev = &client->dev;
472 struct drv260x_data *haptics;
476 haptics = devm_kzalloc(dev, sizeof(*haptics), GFP_KERNEL);
480 error = device_property_read_u32(dev, "mode", &haptics->mode);
482 dev_err(dev, "Can't fetch 'mode' property: %d\n", error);
486 if (haptics->mode < DRV260X_LRA_MODE ||
487 haptics->mode > DRV260X_ERM_MODE) {
488 dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);
492 error = device_property_read_u32(dev, "library-sel", &haptics->library);
494 dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error);
498 if (haptics->library < DRV260X_LIB_EMPTY ||
499 haptics->library > DRV260X_ERM_LIB_F) {
501 "Library value is invalid: %i\n", haptics->library);
505 if (haptics->mode == DRV260X_LRA_MODE &&
506 haptics->library != DRV260X_LIB_EMPTY &&
507 haptics->library != DRV260X_LIB_LRA) {
508 dev_err(dev, "LRA Mode with ERM Library mismatch\n");
512 if (haptics->mode == DRV260X_ERM_MODE &&
513 (haptics->library == DRV260X_LIB_EMPTY ||
514 haptics->library == DRV260X_LIB_LRA)) {
515 dev_err(dev, "ERM Mode with LRA Library mismatch\n");
519 error = device_property_read_u32(dev, "vib-rated-mv", &voltage);
520 haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :
521 drv260x_calculate_voltage(voltage);
523 error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);
524 haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :
525 drv260x_calculate_voltage(voltage);
527 haptics->regulator = devm_regulator_get(dev, "vbat");
528 if (IS_ERR(haptics->regulator)) {
529 error = PTR_ERR(haptics->regulator);
530 dev_err(dev, "unable to get regulator, error: %d\n", error);
534 haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable",
536 if (IS_ERR(haptics->enable_gpio))
537 return PTR_ERR(haptics->enable_gpio);
539 haptics->input_dev = devm_input_allocate_device(dev);
540 if (!haptics->input_dev) {
541 dev_err(dev, "Failed to allocate input device\n");
545 haptics->input_dev->name = "drv260x:haptics";
546 haptics->input_dev->close = drv260x_close;
547 input_set_drvdata(haptics->input_dev, haptics);
548 input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);
550 error = input_ff_create_memless(haptics->input_dev, NULL,
551 drv260x_haptics_play);
553 dev_err(dev, "input_ff_create() failed: %d\n", error);
557 INIT_WORK(&haptics->work, drv260x_worker);
559 haptics->client = client;
560 i2c_set_clientdata(client, haptics);
562 haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);
563 if (IS_ERR(haptics->regmap)) {
564 error = PTR_ERR(haptics->regmap);
565 dev_err(dev, "Failed to allocate register map: %d\n", error);
569 error = drv260x_init(haptics);
571 dev_err(dev, "Device init failed: %d\n", error);
575 error = input_register_device(haptics->input_dev);
577 dev_err(dev, "couldn't register input device: %d\n", error);
584 static int __maybe_unused drv260x_suspend(struct device *dev)
586 struct drv260x_data *haptics = dev_get_drvdata(dev);
589 mutex_lock(&haptics->input_dev->mutex);
591 if (haptics->input_dev->users) {
592 ret = regmap_update_bits(haptics->regmap,
594 DRV260X_STANDBY_MASK,
597 dev_err(dev, "Failed to set standby mode\n");
601 gpiod_set_value(haptics->enable_gpio, 0);
603 ret = regulator_disable(haptics->regulator);
605 dev_err(dev, "Failed to disable regulator\n");
606 regmap_update_bits(haptics->regmap,
608 DRV260X_STANDBY_MASK, 0);
612 mutex_unlock(&haptics->input_dev->mutex);
616 static int __maybe_unused drv260x_resume(struct device *dev)
618 struct drv260x_data *haptics = dev_get_drvdata(dev);
621 mutex_lock(&haptics->input_dev->mutex);
623 if (haptics->input_dev->users) {
624 ret = regulator_enable(haptics->regulator);
626 dev_err(dev, "Failed to enable regulator\n");
630 ret = regmap_update_bits(haptics->regmap,
632 DRV260X_STANDBY_MASK, 0);
634 dev_err(dev, "Failed to unset standby mode\n");
635 regulator_disable(haptics->regulator);
639 gpiod_set_value(haptics->enable_gpio, 1);
643 mutex_unlock(&haptics->input_dev->mutex);
647 static SIMPLE_DEV_PM_OPS(drv260x_pm_ops, drv260x_suspend, drv260x_resume);
649 static const struct i2c_device_id drv260x_id[] = {
653 MODULE_DEVICE_TABLE(i2c, drv260x_id);
656 static const struct of_device_id drv260x_of_match[] = {
657 { .compatible = "ti,drv2604", },
658 { .compatible = "ti,drv2604l", },
659 { .compatible = "ti,drv2605", },
660 { .compatible = "ti,drv2605l", },
663 MODULE_DEVICE_TABLE(of, drv260x_of_match);
666 static struct i2c_driver drv260x_driver = {
667 .probe = drv260x_probe,
669 .name = "drv260x-haptics",
670 .of_match_table = of_match_ptr(drv260x_of_match),
671 .pm = &drv260x_pm_ops,
673 .id_table = drv260x_id,
675 module_i2c_driver(drv260x_driver);
677 MODULE_DESCRIPTION("TI DRV260x haptics driver");
678 MODULE_LICENSE("GPL");
679 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");