52 	struct iio_trigger *trig = to_iio_trigger(dev);  in name_show()  local
54 	return sysfs_emit(buf, "%s\n", trig->name);  in name_show()
115 int iio_trigger_set_immutable(struct iio_dev *indio_dev, struct iio_trigger *trig)  in iio_trigger_set_immutable()  argument
119 	if (!indio_dev || !trig)  in iio_trigger_set_immutable()
126 	indio_dev->trig = iio_trigger_get(trig);  in iio_trigger_set_immutable()
148 	struct iio_trigger *trig = NULL, *iter;  in iio_trigger_acquire_by_name()  local
153 			trig = iter;  in iio_trigger_acquire_by_name()
154 			iio_trigger_get(trig);  in iio_trigger_acquire_by_name()
159 	return trig;  in iio_trigger_acquire_by_name()
164 	struct iio_trigger *trig = container_of(work, struct iio_trigger,  in iio_reenable_work_fn()  local
171 	trig->ops->reenable(trig);  in iio_reenable_work_fn()
188 static void iio_trigger_notify_done_atomic(struct iio_trigger *trig)  in iio_trigger_notify_done_atomic()  argument
190 	if (atomic_dec_and_test(&trig->use_count) && trig->ops &&  in iio_trigger_notify_done_atomic()
191 	    trig->ops->reenable)  in iio_trigger_notify_done_atomic()
192 		schedule_work(&trig->reenable_work);  in iio_trigger_notify_done_atomic()
201 void iio_trigger_poll(struct iio_trigger *trig)  in iio_trigger_poll()  argument
205 	if (!atomic_read(&trig->use_count)) {  in iio_trigger_poll()
206 		atomic_set(&trig->use_count, CONFIG_IIO_CONSUMERS_PER_TRIGGER);  in iio_trigger_poll()
209 			if (trig->subirqs[i].enabled)  in iio_trigger_poll()
210 				generic_handle_irq(trig->subirq_base + i);  in iio_trigger_poll()
212 				iio_trigger_notify_done_atomic(trig);  in iio_trigger_poll()
232 void iio_trigger_poll_nested(struct iio_trigger *trig)  in iio_trigger_poll_nested()  argument
236 	if (!atomic_read(&trig->use_count)) {  in iio_trigger_poll_nested()
237 		atomic_set(&trig->use_count, CONFIG_IIO_CONSUMERS_PER_TRIGGER);  in iio_trigger_poll_nested()
240 			if (trig->subirqs[i].enabled)  in iio_trigger_poll_nested()
241 				handle_nested_irq(trig->subirq_base + i);  in iio_trigger_poll_nested()
243 				iio_trigger_notify_done(trig);  in iio_trigger_poll_nested()
249 void iio_trigger_notify_done(struct iio_trigger *trig)  in iio_trigger_notify_done()  argument
251 	if (atomic_dec_and_test(&trig->use_count) && trig->ops &&  in iio_trigger_notify_done()
252 	    trig->ops->reenable)  in iio_trigger_notify_done()
253 		trig->ops->reenable(trig);  in iio_trigger_notify_done()
258 static int iio_trigger_get_irq(struct iio_trigger *trig)  in iio_trigger_get_irq()  argument
262 	mutex_lock(&trig->pool_lock);  in iio_trigger_get_irq()
263 	ret = bitmap_find_free_region(trig->pool,  in iio_trigger_get_irq()
266 	mutex_unlock(&trig->pool_lock);  in iio_trigger_get_irq()
268 		ret += trig->subirq_base;  in iio_trigger_get_irq()
273 static void iio_trigger_put_irq(struct iio_trigger *trig, int irq)  in iio_trigger_put_irq()  argument
275 	mutex_lock(&trig->pool_lock);  in iio_trigger_put_irq()
276 	clear_bit(irq - trig->subirq_base, trig->pool);  in iio_trigger_put_irq()
277 	mutex_unlock(&trig->pool_lock);  in iio_trigger_put_irq()
287 int iio_trigger_attach_poll_func(struct iio_trigger *trig,  in iio_trigger_attach_poll_func()  argument
292 		bitmap_empty(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER);  in iio_trigger_attach_poll_func()
299 	pf->irq = iio_trigger_get_irq(trig);  in iio_trigger_attach_poll_func()
302 			trig->name, CONFIG_IIO_CONSUMERS_PER_TRIGGER);  in iio_trigger_attach_poll_func()
314 	if (trig->ops && trig->ops->set_trigger_state && notinuse) {  in iio_trigger_attach_poll_func()
315 		ret = trig->ops->set_trigger_state(trig, true);  in iio_trigger_attach_poll_func()
325 	if (iio_validate_own_trigger(pf->indio_dev, trig))  in iio_trigger_attach_poll_func()
326 		trig->attached_own_device = true;  in iio_trigger_attach_poll_func()
333 	iio_trigger_put_irq(trig, pf->irq);  in iio_trigger_attach_poll_func()
339 int iio_trigger_detach_poll_func(struct iio_trigger *trig,  in iio_trigger_detach_poll_func()  argument
344 		bitmap_weight(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER) == 1;  in iio_trigger_detach_poll_func()
347 	if (trig->ops && trig->ops->set_trigger_state && no_other_users) {  in iio_trigger_detach_poll_func()
348 		ret = trig->ops->set_trigger_state(trig, false);  in iio_trigger_detach_poll_func()
352 	if (pf->indio_dev->dev.parent == trig->dev.parent)  in iio_trigger_detach_poll_func()
353 		trig->attached_own_device = false;  in iio_trigger_detach_poll_func()
354 	iio_trigger_put_irq(trig, pf->irq);  in iio_trigger_detach_poll_func()
425 	if (indio_dev->trig)  in current_trigger_show()
426 		return sysfs_emit(buf, "%s\n", indio_dev->trig->name);  in current_trigger_show()
450 	struct iio_trigger *oldtrig = indio_dev->trig;  in current_trigger_store()
451 	struct iio_trigger *trig;  in current_trigger_store()  local
465 	trig = iio_trigger_acquire_by_name(buf);  in current_trigger_store()
466 	if (oldtrig == trig) {  in current_trigger_store()
471 	if (trig && indio_dev->info->validate_trigger) {  in current_trigger_store()
472 		ret = indio_dev->info->validate_trigger(indio_dev, trig);  in current_trigger_store()
477 	if (trig && trig->ops && trig->ops->validate_device) {  in current_trigger_store()
478 		ret = trig->ops->validate_device(trig, indio_dev);  in current_trigger_store()
483 	indio_dev->trig = trig;  in current_trigger_store()
491 	if (indio_dev->trig) {  in current_trigger_store()
493 			iio_trigger_attach_poll_func(indio_dev->trig,  in current_trigger_store()
500 	if (trig)  in current_trigger_store()
501 		iio_trigger_put(trig);  in current_trigger_store()
519 	struct iio_trigger *trig = to_iio_trigger(device);  in iio_trig_release()  local
522 	if (trig->subirq_base) {  in iio_trig_release()
524 			irq_modify_status(trig->subirq_base + i,  in iio_trig_release()
527 			irq_set_chip(trig->subirq_base + i,  in iio_trig_release()
529 			irq_set_handler(trig->subirq_base + i,  in iio_trig_release()
533 		irq_free_descs(trig->subirq_base,  in iio_trig_release()
536 	kfree(trig->name);  in iio_trig_release()
537 	kfree(trig);  in iio_trig_release()
548 	struct iio_trigger *trig = container_of(chip, struct iio_trigger, subirq_chip);  in iio_trig_subirqmask()  local
550 	trig->subirqs[d->irq - trig->subirq_base].enabled = false;  in iio_trig_subirqmask()
556 	struct iio_trigger *trig = container_of(chip, struct iio_trigger, subirq_chip);  in iio_trig_subirqunmask()  local
558 	trig->subirqs[d->irq - trig->subirq_base].enabled = true;  in iio_trig_subirqunmask()
567 	struct iio_trigger *trig;  in viio_trigger_alloc()  local
570 	trig = kzalloc(sizeof(*trig), GFP_KERNEL);  in viio_trigger_alloc()
571 	if (!trig)  in viio_trigger_alloc()
574 	trig->dev.parent = parent;  in viio_trigger_alloc()
575 	trig->dev.type = &iio_trig_type;  in viio_trigger_alloc()
576 	trig->dev.bus = &iio_bus_type;  in viio_trigger_alloc()
577 	device_initialize(&trig->dev);  in viio_trigger_alloc()
578 	INIT_WORK(&trig->reenable_work, iio_reenable_work_fn);  in viio_trigger_alloc()
580 	mutex_init(&trig->pool_lock);  in viio_trigger_alloc()
581 	trig->subirq_base = irq_alloc_descs(-1, 0,  in viio_trigger_alloc()
584 	if (trig->subirq_base < 0)  in viio_trigger_alloc()
587 	trig->name = kvasprintf(GFP_KERNEL, fmt, vargs);  in viio_trigger_alloc()
588 	if (trig->name == NULL)  in viio_trigger_alloc()
591 	INIT_LIST_HEAD(&trig->list);  in viio_trigger_alloc()
593 	trig->owner = this_mod;  in viio_trigger_alloc()
595 	trig->subirq_chip.name = trig->name;  in viio_trigger_alloc()
596 	trig->subirq_chip.irq_mask = &iio_trig_subirqmask;  in viio_trigger_alloc()
597 	trig->subirq_chip.irq_unmask = &iio_trig_subirqunmask;  in viio_trigger_alloc()
599 		irq_set_chip(trig->subirq_base + i, &trig->subirq_chip);  in viio_trigger_alloc()
600 		irq_set_handler(trig->subirq_base + i, &handle_simple_irq);  in viio_trigger_alloc()
601 		irq_modify_status(trig->subirq_base + i,  in viio_trigger_alloc()
605 	return trig;  in viio_trigger_alloc()
608 	irq_free_descs(trig->subirq_base, CONFIG_IIO_CONSUMERS_PER_TRIGGER);  in viio_trigger_alloc()
610 	kfree(trig);  in viio_trigger_alloc()
629 	struct iio_trigger *trig;  in __iio_trigger_alloc()  local
633 	trig = viio_trigger_alloc(parent, this_mod, fmt, vargs);  in __iio_trigger_alloc()
636 	return trig;  in __iio_trigger_alloc()
640 void iio_trigger_free(struct iio_trigger *trig)  in iio_trigger_free()  argument
642 	if (trig)  in iio_trigger_free()
643 		put_device(&trig->dev);  in iio_trigger_free()
671 	struct iio_trigger **ptr, *trig;  in __devm_iio_trigger_alloc()  local
681 	trig = viio_trigger_alloc(parent, this_mod, fmt, vargs);  in __devm_iio_trigger_alloc()
683 	if (trig) {  in __devm_iio_trigger_alloc()
684 		*ptr = trig;  in __devm_iio_trigger_alloc()
690 	return trig;  in __devm_iio_trigger_alloc()
727 	return indio_dev->trig->attached_own_device;  in iio_trigger_using_own()
743 int iio_validate_own_trigger(struct iio_dev *idev, struct iio_trigger *trig)  in iio_validate_own_trigger()  argument
745 	if (idev->dev.parent != trig->dev.parent)  in iio_validate_own_trigger()
763 int iio_trigger_validate_own_device(struct iio_trigger *trig,  in iio_trigger_validate_own_device()  argument
766 	if (indio_dev->dev.parent != trig->dev.parent)  in iio_trigger_validate_own_device()
781 	if (indio_dev->trig)  in iio_device_unregister_trigger_consumer()
782 		iio_trigger_put(indio_dev->trig);  in iio_device_unregister_trigger_consumer()