123 static int rv3029_eeprom_busywait(struct rv3029_data *rv3029)  in rv3029_eeprom_busywait()  argument
129 		ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);  in rv3029_eeprom_busywait()
137 		dev_err(rv3029->dev, "EEPROM busy wait timeout.\n");  in rv3029_eeprom_busywait()
144 static int rv3029_eeprom_exit(struct rv3029_data *rv3029)  in rv3029_eeprom_exit()  argument
147 	return regmap_update_bits(rv3029->regmap, RV3029_ONOFF_CTRL,  in rv3029_eeprom_exit()
152 static int rv3029_eeprom_enter(struct rv3029_data *rv3029)  in rv3029_eeprom_enter()  argument
158 	ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);  in rv3029_eeprom_enter()
167 		ret = regmap_update_bits(rv3029->regmap, RV3029_STATUS,  in rv3029_eeprom_enter()
172 		ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);  in rv3029_eeprom_enter()
176 			dev_err(rv3029->dev,  in rv3029_eeprom_enter()
183 	ret = regmap_update_bits(rv3029->regmap, RV3029_ONOFF_CTRL,  in rv3029_eeprom_enter()
189 	ret = rv3029_eeprom_busywait(rv3029);  in rv3029_eeprom_enter()
191 		rv3029_eeprom_exit(rv3029);  in rv3029_eeprom_enter()
196 static int rv3029_eeprom_read(struct rv3029_data *rv3029, u8 reg,  in rv3029_eeprom_read()  argument
201 	err = rv3029_eeprom_enter(rv3029);  in rv3029_eeprom_read()
205 	ret = regmap_bulk_read(rv3029->regmap, reg, buf, len);  in rv3029_eeprom_read()
207 	err = rv3029_eeprom_exit(rv3029);  in rv3029_eeprom_read()
214 static int rv3029_eeprom_write(struct rv3029_data *rv3029, u8 reg,  in rv3029_eeprom_write()  argument
221 	err = rv3029_eeprom_enter(rv3029);  in rv3029_eeprom_write()
226 		ret = regmap_read(rv3029->regmap, reg, &tmp);  in rv3029_eeprom_write()
231 			ret = regmap_write(rv3029->regmap, reg, tmp);  in rv3029_eeprom_write()
235 		ret = rv3029_eeprom_busywait(rv3029);  in rv3029_eeprom_write()
240 	err = rv3029_eeprom_exit(rv3029);  in rv3029_eeprom_write()
247 static int rv3029_eeprom_update_bits(struct rv3029_data *rv3029,  in rv3029_eeprom_update_bits()  argument
253 	ret = rv3029_eeprom_read(rv3029, reg, &buf, 1);  in rv3029_eeprom_update_bits()
258 	ret = rv3029_eeprom_write(rv3029, reg, &buf, 1);  in rv3029_eeprom_update_bits()
268 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_handle_irq()  local
273 	rtc_lock(rv3029->rtc);  in rv3029_handle_irq()
275 	ret = regmap_read(rv3029->regmap, RV3029_IRQ_CTRL, &controls);  in rv3029_handle_irq()
278 		rtc_unlock(rv3029->rtc);  in rv3029_handle_irq()
282 	ret = regmap_read(rv3029->regmap, RV3029_IRQ_FLAGS, &flags);  in rv3029_handle_irq()
285 		rtc_unlock(rv3029->rtc);  in rv3029_handle_irq()
296 		rtc_update_irq(rv3029->rtc, 1, events);  in rv3029_handle_irq()
297 		regmap_write(rv3029->regmap, RV3029_IRQ_FLAGS, flags);  in rv3029_handle_irq()
298 		regmap_write(rv3029->regmap, RV3029_IRQ_CTRL, controls);  in rv3029_handle_irq()
300 	rtc_unlock(rv3029->rtc);  in rv3029_handle_irq()
307 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_read_time()  local
312 	ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);  in rv3029_read_time()
319 	ret = regmap_bulk_read(rv3029->regmap, RV3029_W_SEC, regs,  in rv3029_read_time()
350 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_read_alarm()  local
356 	ret = regmap_bulk_read(rv3029->regmap, RV3029_A_SC, regs,  in rv3029_read_alarm()
361 	ret = regmap_read(rv3029->regmap, RV3029_IRQ_CTRL, &controls);  in rv3029_read_alarm()
365 	ret = regmap_read(rv3029->regmap, RV3029_IRQ_FLAGS, &flags);  in rv3029_read_alarm()
385 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_alarm_irq_enable()  local
387 	return regmap_update_bits(rv3029->regmap, RV3029_IRQ_CTRL,  in rv3029_alarm_irq_enable()
394 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_set_alarm()  local
414 	ret = regmap_bulk_write(rv3029->regmap, RV3029_A_SC, regs,  in rv3029_set_alarm()
424 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_set_time()  local
436 	ret = regmap_bulk_write(rv3029->regmap, RV3029_W_SEC, regs,  in rv3029_set_time()
442 	return regmap_update_bits(rv3029->regmap, RV3029_STATUS,  in rv3029_set_time()
448 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_ioctl()  local
454 		ret = regmap_read(rv3029->regmap, RV3029_STATUS, &sr);  in rv3029_ioctl()
467 		return regmap_update_bits(rv3029->regmap, RV3029_STATUS,  in rv3029_ioctl()
546 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_trickle_config()  local
573 	err = rv3029_eeprom_update_bits(rv3029, RV3029_CONTROL_E2P_EECTRL,  in rv3029_trickle_config()
582 static int rv3029_read_temp(struct rv3029_data *rv3029, int *temp_mC)  in rv3029_read_temp()  argument
587 	ret = regmap_read(rv3029->regmap, RV3029_TEMP_PAGE, &temp);  in rv3029_read_temp()
600 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_hwmon_show_temp()  local
603 	ret = rv3029_read_temp(rv3029, &temp_mC);  in rv3029_hwmon_show_temp()
615 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_hwmon_set_update_interval()  local
629 	ret = rv3029_eeprom_update_bits(rv3029, RV3029_CONTROL_E2P_EECTRL,  in rv3029_hwmon_set_update_interval()
642 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_hwmon_show_update_interval()  local
646 	ret = rv3029_eeprom_read(rv3029, RV3029_CONTROL_E2P_EECTRL,  in rv3029_hwmon_show_update_interval()
678 	struct rv3029_data *rv3029 = dev_get_drvdata(dev);  in rv3029_hwmon_register()  local
681 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, name, rv3029,  in rv3029_hwmon_register()
709 	struct rv3029_data *rv3029;  in rv3029_probe()  local
721 	rv3029 = devm_kzalloc(dev, sizeof(*rv3029), GFP_KERNEL);  in rv3029_probe()
722 	if (!rv3029)  in rv3029_probe()
725 	rv3029->regmap = regmap;  in rv3029_probe()
726 	rv3029->irq = irq;  in rv3029_probe()
727 	rv3029->dev = dev;  in rv3029_probe()
728 	dev_set_drvdata(dev, rv3029);  in rv3029_probe()
733 	rv3029->rtc = devm_rtc_allocate_device(dev);  in rv3029_probe()
734 	if (IS_ERR(rv3029->rtc))  in rv3029_probe()
735 		return PTR_ERR(rv3029->rtc);  in rv3029_probe()
737 	if (rv3029->irq > 0) {  in rv3029_probe()
743 		rc = devm_request_threaded_irq(dev, rv3029->irq,  in rv3029_probe()
749 			rv3029->irq = 0;  in rv3029_probe()
752 	if (!rv3029->irq)  in rv3029_probe()
753 		clear_bit(RTC_FEATURE_ALARM, rv3029->rtc->features);  in rv3029_probe()
755 	rv3029->rtc->ops = &rv3029_rtc_ops;  in rv3029_probe()
756 	rv3029->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in rv3029_probe()
757 	rv3029->rtc->range_max = RTC_TIMESTAMP_END_2079;  in rv3029_probe()
759 	rc = devm_rtc_register_device(rv3029->rtc);  in rv3029_probe()
763 	nvmem_cfg.priv = rv3029->regmap;  in rv3029_probe()
764 	devm_rtc_nvmem_register(rv3029->rtc, &nvmem_cfg);  in rv3029_probe()