1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <dt-bindings/input/ti-drv260x.h>
60 /* Library Selection */
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
191 	u32 library;  member
253 	gpiod_set_value(haptics->enable_gpio, 1);  in drv260x_worker()
257 	error = regmap_write(haptics->regmap,  in drv260x_worker()
260 		dev_err(&haptics->client->dev,  in drv260x_worker()
263 		error = regmap_write(haptics->regmap,  in drv260x_worker()
264 				     DRV260X_RT_PB_IN, haptics->magnitude);  in drv260x_worker()
266 			dev_err(&haptics->client->dev,  in drv260x_worker()
276 	haptics->mode = DRV260X_LRA_NO_CAL_MODE;  in drv260x_haptics_play()
278 	if (effect->u.rumble.strong_magnitude > 0)  in drv260x_haptics_play()
279 		haptics->magnitude = effect->u.rumble.strong_magnitude;  in drv260x_haptics_play()
280 	else if (effect->u.rumble.weak_magnitude > 0)  in drv260x_haptics_play()
281 		haptics->magnitude = effect->u.rumble.weak_magnitude;  in drv260x_haptics_play()
283 		haptics->magnitude = 0;  in drv260x_haptics_play()
285 	schedule_work(&haptics->work);  in drv260x_haptics_play()
295 	cancel_work_sync(&haptics->work);  in drv260x_close()
297 	error = regmap_write(haptics->regmap, DRV260X_MODE, DRV260X_STANDBY);  in drv260x_close()
299 		dev_err(&haptics->client->dev,  in drv260x_close()
302 	gpiod_set_value(haptics->enable_gpio, 0);  in drv260x_close()
349 	error = regmap_write(haptics->regmap,  in drv260x_init()
350 			     DRV260X_RATED_VOLT, haptics->rated_voltage);  in drv260x_init()
352 		dev_err(&haptics->client->dev,  in drv260x_init()
358 	error = regmap_write(haptics->regmap,  in drv260x_init()
359 			     DRV260X_OD_CLAMP_VOLT, haptics->overdrive_voltage);  in drv260x_init()
361 		dev_err(&haptics->client->dev,  in drv260x_init()
367 	switch (haptics->mode) {  in drv260x_init()
369 		error = regmap_register_patch(haptics->regmap,  in drv260x_init()
373 			dev_err(&haptics->client->dev,  in drv260x_init()
382 		error = regmap_register_patch(haptics->regmap,  in drv260x_init()
386 			dev_err(&haptics->client->dev,  in drv260x_init()
392 		error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,  in drv260x_init()
394 					   haptics->library);  in drv260x_init()
396 			dev_err(&haptics->client->dev,  in drv260x_init()
405 		error = regmap_register_patch(haptics->regmap,  in drv260x_init()
409 			dev_err(&haptics->client->dev,  in drv260x_init()
415 		error = regmap_update_bits(haptics->regmap, DRV260X_LIB_SEL,  in drv260x_init()
417 					   haptics->library);  in drv260x_init()
419 			dev_err(&haptics->client->dev,  in drv260x_init()
429 	error = regmap_write(haptics->regmap, DRV260X_GO, DRV260X_GO_BIT);  in drv260x_init()
431 		dev_err(&haptics->client->dev,  in drv260x_init()
439 		error = regmap_read(haptics->regmap, DRV260X_GO, &cal_buf);  in drv260x_init()
441 			dev_err(&haptics->client->dev,  in drv260x_init()
464 	struct device *dev = &client->dev;  in drv260x_probe()
471 		return -ENOMEM;  in drv260x_probe()
473 	error = device_property_read_u32(dev, "mode", &haptics->mode);  in drv260x_probe()
479 	if (haptics->mode < DRV260X_LRA_MODE ||  in drv260x_probe()
480 	    haptics->mode > DRV260X_ERM_MODE) {  in drv260x_probe()
481 		dev_err(dev, "Vibrator mode is invalid: %i\n", haptics->mode);  in drv260x_probe()
482 		return -EINVAL;  in drv260x_probe()
485 	error = device_property_read_u32(dev, "library-sel", &haptics->library);  in drv260x_probe()
487 		dev_err(dev, "Can't fetch 'library-sel' property: %d\n", error);  in drv260x_probe()
491 	if (haptics->library < DRV260X_LIB_EMPTY ||  in drv260x_probe()
492 	    haptics->library > DRV260X_ERM_LIB_F) {  in drv260x_probe()
494 			"Library value is invalid: %i\n", haptics->library);  in drv260x_probe()
495 		return -EINVAL;  in drv260x_probe()
498 	if (haptics->mode == DRV260X_LRA_MODE &&  in drv260x_probe()
499 	    haptics->library != DRV260X_LIB_EMPTY &&  in drv260x_probe()
500 	    haptics->library != DRV260X_LIB_LRA) {  in drv260x_probe()
501 		dev_err(dev, "LRA Mode with ERM Library mismatch\n");  in drv260x_probe()
502 		return -EINVAL;  in drv260x_probe()
505 	if (haptics->mode == DRV260X_ERM_MODE &&  in drv260x_probe()
506 	    (haptics->library == DRV260X_LIB_EMPTY ||  in drv260x_probe()
507 	     haptics->library == DRV260X_LIB_LRA)) {  in drv260x_probe()
508 		dev_err(dev, "ERM Mode with LRA Library mismatch\n");  in drv260x_probe()
509 		return -EINVAL;  in drv260x_probe()
512 	error = device_property_read_u32(dev, "vib-rated-mv", &voltage);  in drv260x_probe()
513 	haptics->rated_voltage = error ? DRV260X_DEF_RATED_VOLT :  in drv260x_probe()
516 	error = device_property_read_u32(dev, "vib-overdrive-mv", &voltage);  in drv260x_probe()
517 	haptics->overdrive_voltage = error ? DRV260X_DEF_OD_CLAMP_VOLT :  in drv260x_probe()
520 	haptics->regulator = devm_regulator_get(dev, "vbat");  in drv260x_probe()
521 	if (IS_ERR(haptics->regulator)) {  in drv260x_probe()
522 		error = PTR_ERR(haptics->regulator);  in drv260x_probe()
527 	haptics->enable_gpio = devm_gpiod_get_optional(dev, "enable",  in drv260x_probe()
529 	if (IS_ERR(haptics->enable_gpio))  in drv260x_probe()
530 		return PTR_ERR(haptics->enable_gpio);  in drv260x_probe()
532 	haptics->input_dev = devm_input_allocate_device(dev);  in drv260x_probe()
533 	if (!haptics->input_dev) {  in drv260x_probe()
535 		return -ENOMEM;  in drv260x_probe()
538 	haptics->input_dev->name = "drv260x:haptics";  in drv260x_probe()
539 	haptics->input_dev->close = drv260x_close;  in drv260x_probe()
540 	input_set_drvdata(haptics->input_dev, haptics);  in drv260x_probe()
541 	input_set_capability(haptics->input_dev, EV_FF, FF_RUMBLE);  in drv260x_probe()
543 	error = input_ff_create_memless(haptics->input_dev, NULL,  in drv260x_probe()
550 	INIT_WORK(&haptics->work, drv260x_worker);  in drv260x_probe()
552 	haptics->client = client;  in drv260x_probe()
555 	haptics->regmap = devm_regmap_init_i2c(client, &drv260x_regmap_config);  in drv260x_probe()
556 	if (IS_ERR(haptics->regmap)) {  in drv260x_probe()
557 		error = PTR_ERR(haptics->regmap);  in drv260x_probe()
568 	error = input_register_device(haptics->input_dev);  in drv260x_probe()
582 	mutex_lock(&haptics->input_dev->mutex);  in drv260x_suspend()
584 	if (haptics->input_dev->users) {  in drv260x_suspend()
585 		ret = regmap_update_bits(haptics->regmap,  in drv260x_suspend()
594 		gpiod_set_value(haptics->enable_gpio, 0);  in drv260x_suspend()
596 		ret = regulator_disable(haptics->regulator);  in drv260x_suspend()
599 			regmap_update_bits(haptics->regmap,  in drv260x_suspend()
605 	mutex_unlock(&haptics->input_dev->mutex);  in drv260x_suspend()
614 	mutex_lock(&haptics->input_dev->mutex);  in drv260x_resume()
616 	if (haptics->input_dev->users) {  in drv260x_resume()
617 		ret = regulator_enable(haptics->regulator);  in drv260x_resume()
623 		ret = regmap_update_bits(haptics->regmap,  in drv260x_resume()
628 			regulator_disable(haptics->regulator);  in drv260x_resume()
632 		gpiod_set_value(haptics->enable_gpio, 1);  in drv260x_resume()
636 	mutex_unlock(&haptics->input_dev->mutex);  in drv260x_resume()
660 		.name	= "drv260x-haptics",