272 				    struct max77686_rtc_info *info)  in max77686_rtc_data_to_tm()  argument
274 	u8 mask = info->drv_data->mask;  in max77686_rtc_data_to_tm()
278 	if (info->rtc_24hr_mode) {  in max77686_rtc_data_to_tm()
298 	if (!info->drv_data->alarm_enable_reg)  in max77686_rtc_data_to_tm()
303 				   struct max77686_rtc_info *info)  in max77686_rtc_tm_to_data()  argument
312 	if (info->drv_data->alarm_enable_reg) {  in max77686_rtc_tm_to_data()
320 		dev_err(info->dev, "RTC cannot handle the year %d.\n",  in max77686_rtc_tm_to_data()
328 static int max77686_rtc_update(struct max77686_rtc_info *info,  in max77686_rtc_update()  argument
333 	unsigned long delay = info->drv_data->delay;  in max77686_rtc_update()
340 	ret = regmap_update_bits(info->rtc_regmap,  in max77686_rtc_update()
341 				 info->drv_data->map[REG_RTC_UPDATE0],  in max77686_rtc_update()
344 		dev_err(info->dev, "Fail to write update reg(ret=%d, data=0x%x)\n",  in max77686_rtc_update()
356 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_read_time()  local
360 	mutex_lock(&info->lock);  in max77686_rtc_read_time()
362 	ret = max77686_rtc_update(info, MAX77686_RTC_READ);  in max77686_rtc_read_time()
366 	ret = regmap_bulk_read(info->rtc_regmap,  in max77686_rtc_read_time()
367 			       info->drv_data->map[REG_RTC_SEC],  in max77686_rtc_read_time()
370 		dev_err(info->dev, "Fail to read time reg(%d)\n", ret);  in max77686_rtc_read_time()
374 	max77686_rtc_data_to_tm(data, tm, info);  in max77686_rtc_read_time()
377 	mutex_unlock(&info->lock);  in max77686_rtc_read_time()
383 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_set_time()  local
387 	ret = max77686_rtc_tm_to_data(tm, data, info);  in max77686_rtc_set_time()
391 	mutex_lock(&info->lock);  in max77686_rtc_set_time()
393 	ret = regmap_bulk_write(info->rtc_regmap,  in max77686_rtc_set_time()
394 				info->drv_data->map[REG_RTC_SEC],  in max77686_rtc_set_time()
397 		dev_err(info->dev, "Fail to write time reg(%d)\n", ret);  in max77686_rtc_set_time()
401 	ret = max77686_rtc_update(info, MAX77686_RTC_WRITE);  in max77686_rtc_set_time()
404 	mutex_unlock(&info->lock);  in max77686_rtc_set_time()
410 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_read_alarm()  local
413 	const unsigned int *map = info->drv_data->map;  in max77686_rtc_read_alarm()
416 	mutex_lock(&info->lock);  in max77686_rtc_read_alarm()
418 	ret = max77686_rtc_update(info, MAX77686_RTC_READ);  in max77686_rtc_read_alarm()
422 	ret = regmap_bulk_read(info->rtc_regmap, map[REG_ALARM1_SEC],  in max77686_rtc_read_alarm()
425 		dev_err(info->dev, "Fail to read alarm reg(%d)\n", ret);  in max77686_rtc_read_alarm()
429 	max77686_rtc_data_to_tm(data, &alrm->time, info);  in max77686_rtc_read_alarm()
433 	if (info->drv_data->alarm_enable_reg) {  in max77686_rtc_read_alarm()
436 			dev_err(info->dev,  in max77686_rtc_read_alarm()
441 		ret = regmap_read(info->rtc_regmap, map[REG_RTC_AE1], &val);  in max77686_rtc_read_alarm()
443 			dev_err(info->dev,  in max77686_rtc_read_alarm()
461 	if (info->drv_data->alarm_pending_status_reg == MAX77686_INVALID_REG)  in max77686_rtc_read_alarm()
464 	ret = regmap_read(info->regmap,  in max77686_rtc_read_alarm()
465 			  info->drv_data->alarm_pending_status_reg, &val);  in max77686_rtc_read_alarm()
467 		dev_err(info->dev,  in max77686_rtc_read_alarm()
476 	mutex_unlock(&info->lock);  in max77686_rtc_read_alarm()
480 static int max77686_rtc_stop_alarm(struct max77686_rtc_info *info)  in max77686_rtc_stop_alarm()  argument
485 	const unsigned int *map = info->drv_data->map;  in max77686_rtc_stop_alarm()
487 	if (!mutex_is_locked(&info->lock))  in max77686_rtc_stop_alarm()
488 		dev_warn(info->dev, "%s: should have mutex locked\n", __func__);  in max77686_rtc_stop_alarm()
490 	ret = max77686_rtc_update(info, MAX77686_RTC_READ);  in max77686_rtc_stop_alarm()
494 	if (info->drv_data->alarm_enable_reg) {  in max77686_rtc_stop_alarm()
497 			dev_err(info->dev,  in max77686_rtc_stop_alarm()
502 		ret = regmap_write(info->rtc_regmap, map[REG_RTC_AE1], 0);  in max77686_rtc_stop_alarm()
504 		ret = regmap_bulk_read(info->rtc_regmap, map[REG_ALARM1_SEC],  in max77686_rtc_stop_alarm()
507 			dev_err(info->dev, "Fail to read alarm reg(%d)\n", ret);  in max77686_rtc_stop_alarm()
511 		max77686_rtc_data_to_tm(data, &tm, info);  in max77686_rtc_stop_alarm()
516 		ret = regmap_bulk_write(info->rtc_regmap, map[REG_ALARM1_SEC],  in max77686_rtc_stop_alarm()
521 		dev_err(info->dev, "Fail to write alarm reg(%d)\n", ret);  in max77686_rtc_stop_alarm()
525 	ret = max77686_rtc_update(info, MAX77686_RTC_WRITE);  in max77686_rtc_stop_alarm()
530 static int max77686_rtc_start_alarm(struct max77686_rtc_info *info)  in max77686_rtc_start_alarm()  argument
535 	const unsigned int *map = info->drv_data->map;  in max77686_rtc_start_alarm()
537 	if (!mutex_is_locked(&info->lock))  in max77686_rtc_start_alarm()
538 		dev_warn(info->dev, "%s: should have mutex locked\n", __func__);  in max77686_rtc_start_alarm()
540 	ret = max77686_rtc_update(info, MAX77686_RTC_READ);  in max77686_rtc_start_alarm()
544 	if (info->drv_data->alarm_enable_reg) {  in max77686_rtc_start_alarm()
545 		ret = regmap_write(info->rtc_regmap, map[REG_RTC_AE1],  in max77686_rtc_start_alarm()
548 		ret = regmap_bulk_read(info->rtc_regmap, map[REG_ALARM1_SEC],  in max77686_rtc_start_alarm()
551 			dev_err(info->dev, "Fail to read alarm reg(%d)\n", ret);  in max77686_rtc_start_alarm()
555 		max77686_rtc_data_to_tm(data, &tm, info);  in max77686_rtc_start_alarm()
563 		if (data[RTC_YEAR] & info->drv_data->mask)  in max77686_rtc_start_alarm()
568 		ret = regmap_bulk_write(info->rtc_regmap, map[REG_ALARM1_SEC],  in max77686_rtc_start_alarm()
573 		dev_err(info->dev, "Fail to write alarm reg(%d)\n", ret);  in max77686_rtc_start_alarm()
577 	ret = max77686_rtc_update(info, MAX77686_RTC_WRITE);  in max77686_rtc_start_alarm()
584 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_set_alarm()  local
588 	ret = max77686_rtc_tm_to_data(&alrm->time, data, info);  in max77686_rtc_set_alarm()
592 	mutex_lock(&info->lock);  in max77686_rtc_set_alarm()
594 	ret = max77686_rtc_stop_alarm(info);  in max77686_rtc_set_alarm()
598 	ret = regmap_bulk_write(info->rtc_regmap,  in max77686_rtc_set_alarm()
599 				info->drv_data->map[REG_ALARM1_SEC],  in max77686_rtc_set_alarm()
603 		dev_err(info->dev, "Fail to write alarm reg(%d)\n", ret);  in max77686_rtc_set_alarm()
607 	ret = max77686_rtc_update(info, MAX77686_RTC_WRITE);  in max77686_rtc_set_alarm()
612 		ret = max77686_rtc_start_alarm(info);  in max77686_rtc_set_alarm()
614 	mutex_unlock(&info->lock);  in max77686_rtc_set_alarm()
621 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_alarm_irq_enable()  local
624 	mutex_lock(&info->lock);  in max77686_rtc_alarm_irq_enable()
626 		ret = max77686_rtc_start_alarm(info);  in max77686_rtc_alarm_irq_enable()
628 		ret = max77686_rtc_stop_alarm(info);  in max77686_rtc_alarm_irq_enable()
629 	mutex_unlock(&info->lock);  in max77686_rtc_alarm_irq_enable()
636 	struct max77686_rtc_info *info = data;  in max77686_rtc_alarm_irq()  local
638 	dev_dbg(info->dev, "RTC alarm IRQ: %d\n", irq);  in max77686_rtc_alarm_irq()
640 	rtc_update_irq(info->rtc_dev, 1, RTC_IRQF | RTC_AF);  in max77686_rtc_alarm_irq()
653 static int max77686_rtc_init_reg(struct max77686_rtc_info *info)  in max77686_rtc_init_reg()  argument
662 	info->rtc_24hr_mode = 1;  in max77686_rtc_init_reg()
664 	ret = regmap_bulk_write(info->rtc_regmap,  in max77686_rtc_init_reg()
665 				info->drv_data->map[REG_RTC_CONTROLM],  in max77686_rtc_init_reg()
668 		dev_err(info->dev, "Fail to write controlm reg(%d)\n", ret);  in max77686_rtc_init_reg()
672 	ret = max77686_rtc_update(info, MAX77686_RTC_WRITE);  in max77686_rtc_init_reg()
676 static int max77686_init_rtc_regmap(struct max77686_rtc_info *info)  in max77686_init_rtc_regmap()  argument
678 	struct device *parent = info->dev->parent;  in max77686_init_rtc_regmap()
682 	if (info->drv_data->rtc_irq_from_platform) {  in max77686_init_rtc_regmap()
683 		struct platform_device *pdev = to_platform_device(info->dev);  in max77686_init_rtc_regmap()
685 		info->rtc_irq = platform_get_irq(pdev, 0);  in max77686_init_rtc_regmap()
686 		if (info->rtc_irq < 0)  in max77686_init_rtc_regmap()
687 			return info->rtc_irq;  in max77686_init_rtc_regmap()
689 		info->rtc_irq =  parent_i2c->irq;  in max77686_init_rtc_regmap()
692 	info->regmap = dev_get_regmap(parent, NULL);  in max77686_init_rtc_regmap()
693 	if (!info->regmap) {  in max77686_init_rtc_regmap()
694 		dev_err(info->dev, "Failed to get rtc regmap\n");  in max77686_init_rtc_regmap()
698 	if (info->drv_data->rtc_i2c_addr == MAX77686_INVALID_I2C_ADDR) {  in max77686_init_rtc_regmap()
699 		info->rtc_regmap = info->regmap;  in max77686_init_rtc_regmap()
703 	info->rtc = devm_i2c_new_dummy_device(info->dev, parent_i2c->adapter,  in max77686_init_rtc_regmap()
704 					      info->drv_data->rtc_i2c_addr);  in max77686_init_rtc_regmap()
705 	if (IS_ERR(info->rtc)) {  in max77686_init_rtc_regmap()
706 		dev_err(info->dev, "Failed to allocate I2C device for RTC\n");  in max77686_init_rtc_regmap()
707 		return PTR_ERR(info->rtc);  in max77686_init_rtc_regmap()
710 	info->rtc_regmap = devm_regmap_init_i2c(info->rtc,  in max77686_init_rtc_regmap()
711 						info->drv_data->regmap_config);  in max77686_init_rtc_regmap()
712 	if (IS_ERR(info->rtc_regmap)) {  in max77686_init_rtc_regmap()
713 		ret = PTR_ERR(info->rtc_regmap);  in max77686_init_rtc_regmap()
714 		dev_err(info->dev, "Failed to allocate RTC regmap: %d\n", ret);  in max77686_init_rtc_regmap()
719 	ret = regmap_add_irq_chip(info->rtc_regmap, info->rtc_irq,  in max77686_init_rtc_regmap()
721 				  0, info->drv_data->rtc_irq_chip,  in max77686_init_rtc_regmap()
722 				  &info->rtc_irq_data);  in max77686_init_rtc_regmap()
724 		dev_err(info->dev, "Failed to add RTC irq chip: %d\n", ret);  in max77686_init_rtc_regmap()
733 	struct max77686_rtc_info *info;  in max77686_rtc_probe()  local
737 	info = devm_kzalloc(&pdev->dev, sizeof(struct max77686_rtc_info),  in max77686_rtc_probe()
739 	if (!info)  in max77686_rtc_probe()
742 	mutex_init(&info->lock);  in max77686_rtc_probe()
743 	info->dev = &pdev->dev;  in max77686_rtc_probe()
744 	info->drv_data = (const struct max77686_rtc_driver_data *)  in max77686_rtc_probe()
747 	ret = max77686_init_rtc_regmap(info);  in max77686_rtc_probe()
751 	platform_set_drvdata(pdev, info);  in max77686_rtc_probe()
753 	ret = max77686_rtc_init_reg(info);  in max77686_rtc_probe()
761 	info->rtc_dev = devm_rtc_device_register(&pdev->dev, id->name,  in max77686_rtc_probe()
764 	if (IS_ERR(info->rtc_dev)) {  in max77686_rtc_probe()
765 		ret = PTR_ERR(info->rtc_dev);  in max77686_rtc_probe()
772 	info->virq = regmap_irq_get_virq(info->rtc_irq_data,  in max77686_rtc_probe()
774 	if (info->virq <= 0) {  in max77686_rtc_probe()
779 	ret = request_threaded_irq(info->virq, NULL, max77686_rtc_alarm_irq, 0,  in max77686_rtc_probe()
780 				   "rtc-alarm1", info);  in max77686_rtc_probe()
783 			info->virq, ret);  in max77686_rtc_probe()
790 	regmap_del_irq_chip(info->rtc_irq, info->rtc_irq_data);  in max77686_rtc_probe()
797 	struct max77686_rtc_info *info = platform_get_drvdata(pdev);  in max77686_rtc_remove()  local
799 	free_irq(info->virq, info);  in max77686_rtc_remove()
800 	regmap_del_irq_chip(info->rtc_irq, info->rtc_irq_data);  in max77686_rtc_remove()
808 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_suspend()  local
812 		struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_suspend()  local
814 		ret = enable_irq_wake(info->virq);  in max77686_rtc_suspend()
825 	if (!info->drv_data->rtc_irq_from_platform)  in max77686_rtc_suspend()
826 		disable_irq(info->rtc_irq);  in max77686_rtc_suspend()
833 	struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_resume()  local
835 	if (!info->drv_data->rtc_irq_from_platform)  in max77686_rtc_resume()
836 		enable_irq(info->rtc_irq);  in max77686_rtc_resume()
839 		struct max77686_rtc_info *info = dev_get_drvdata(dev);  in max77686_rtc_resume()  local
841 		return disable_irq_wake(info->virq);  in max77686_rtc_resume()