drivers/rtc/interface.c

86 	int err;
89 		err = -ENODEV;
91 		err = -EINVAL;
94 		err = rtc->ops->read_time(rtc->dev.parent, tm);
95 		if (err < 0) {
97 				err);
98 			return err;
103 		err = rtc_valid_tm(tm);
104 		if (err < 0)
107 	return err;
112 	int err;
114 	err = mutex_lock_interruptible(&rtc->ops_lock);
115 	if (err)
116 		return err;
118 	err = __rtc_read_time(rtc, tm);
121 	trace_rtc_read_time(rtc_tm_to_time64(tm), err);
122 	return err;
128 	int err, uie;
130 	err = rtc_valid_tm(tm);
131 	if (err != 0)
132 		return err;
134 	err = rtc_valid_range(rtc, tm);
135 	if (err)
136 		return err;
146 		err = rtc_update_irq_enable(rtc, 0);
147 		if (err)
148 			return err;
151 	err = mutex_lock_interruptible(&rtc->ops_lock);
152 	if (err)
153 		return err;
156 		err = -ENODEV;
158 		err = rtc->ops->set_time(rtc->dev.parent, tm);
160 		err = -EINVAL;
168 		err = rtc_update_irq_enable(rtc, 1);
169 		if (err)
170 			return err;
173 	trace_rtc_set_time(rtc_tm_to_time64(tm), err);
174 	return err;
181 	int err;
183 	err = mutex_lock_interruptible(&rtc->ops_lock);
184 	if (err)
185 		return err;
188 		err = -ENODEV;
190 		err = -EINVAL;
203 		err = rtc->ops->read_alarm(rtc->dev.parent, alarm);
208 	trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err);
209 	return err;
214 	int err;
263 	err = rtc_read_time(rtc, &before);
264 	if (err < 0)
265 		return err;
272 		err = rtc_read_alarm_internal(rtc, alarm);
273 		if (err)
274 			return err;
283 		err = rtc_read_time(rtc, &now);
284 		if (err < 0)
285 			return err;
322 	err = rtc_valid_tm(&alarm->time);
323 	if (err)
376 	err = rtc_valid_tm(&alarm->time);
379 	if (err && alarm->enabled)
383 	return err;
388 	int err;
390 	err = mutex_lock_interruptible(&rtc->ops_lock);
391 	if (err)
392 		return err;
394 		err = -ENODEV;
396 		err = -EINVAL;
404 	trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err);
405 	return err;
413 	int err;
415 	err = rtc_valid_tm(&alarm->time);
416 	if (err)
417 		return err;
422 	err = __rtc_read_time(rtc, &tm);
423 	if (err)
424 		return err;
439 		err = -ENODEV;
441 		err = -EINVAL;
443 		err = rtc->ops->set_alarm(rtc->dev.parent, alarm);
445 	trace_rtc_set_alarm(rtc_tm_to_time64(&alarm->time), err);
446 	return err;
452 	int err;
459 	err = rtc_valid_tm(&alarm->time);
460 	if (err != 0)
461 		return err;
463 	err = rtc_valid_range(rtc, &alarm->time);
464 	if (err)
465 		return err;
467 	err = mutex_lock_interruptible(&rtc->ops_lock);
468 	if (err)
469 		return err;
484 		err = rtc_timer_enqueue(rtc, &rtc->aie_timer);
488 	return err;
495 	int err;
498 	err = rtc_valid_tm(&alarm->time);
499 	if (err != 0)
500 		return err;
502 	err = rtc_read_time(rtc, &now);
503 	if (err)
504 		return err;
506 	err = mutex_lock_interruptible(&rtc->ops_lock);
507 	if (err)
508 		return err;
521 	return err;
527 	int err;
529 	err = mutex_lock_interruptible(&rtc->ops_lock);
530 	if (err)
531 		return err;
535 			err = rtc_timer_enqueue(rtc, &rtc->aie_timer);
540 	if (err)
543 		err = -ENODEV;
545 		err = -EINVAL;
547 		err = rtc->ops->alarm_irq_enable(rtc->dev.parent, enabled);
551 	trace_rtc_alarm_irq_enable(enabled, err);
552 	return err;
558 	int err;
560 	err = mutex_lock_interruptible(&rtc->ops_lock);
561 	if (err)
562 		return err;
588 		err = __rtc_read_time(rtc, &tm);
589 		if (err)
595 		err = rtc_timer_enqueue(rtc, &rtc->uie_rtctimer);
603 	return err;
755 	int err = 0;
762 	trace_rtc_irq_set_state(enabled, err);
763 	return err;
777 	int err = 0;
786 	trace_rtc_irq_set_freq(freq, err);
787 	return err;
807 	int err;
809 	err = __rtc_read_time(rtc, &tm);
810 	if (err)
811 		return err;
830 		err = __rtc_set_alarm(rtc, &alarm);
831 		if (err == -ETIME) {
834 		} else if (err) {
838 			return err;
874 		int err;
883 		err = __rtc_set_alarm(rtc, &alarm);
884 		if (err == -ETIME) {
940 		int err;
946 		err = __rtc_set_alarm(rtc, &alarm);
947 		if (err == -ETIME) {
949 		} else if (err) {
957 			dev_err(&rtc->dev, "__rtc_set_alarm: err=%d\n", err);