3  * drivers/rtc/rtc-pcf85363.c
5  * Driver for NXP PCF85363 real-time clock.
113 struct pcf85363 {  struct
123 static int pcf85363_load_capacitance(struct pcf85363 *pcf85363, struct device_node *node)  in pcf85363_load_capacitance()  argument
132 		dev_warn(&pcf85363->rtc->dev, "Unknown quartz-load-femtofarads value: %d. Assuming 7000",  in pcf85363_load_capacitance()
145 	return regmap_update_bits(pcf85363->regmap, CTRL_OSCILLATOR,  in pcf85363_load_capacitance()
151 	struct pcf85363 *pcf85363 = dev_get_drvdata(dev);  in pcf85363_rtc_read_time()  local
156 	ret = regmap_bulk_read(pcf85363->regmap, DT_100THS, buf, len);  in pcf85363_rtc_read_time()
180 	struct pcf85363 *pcf85363 = dev_get_drvdata(dev);  in pcf85363_rtc_set_time()  local
197 	ret = regmap_bulk_write(pcf85363->regmap, CTRL_STOP_EN,  in pcf85363_rtc_set_time()
202 	ret = regmap_bulk_write(pcf85363->regmap, DT_100THS,  in pcf85363_rtc_set_time()
207 	return regmap_write(pcf85363->regmap, CTRL_STOP_EN, 0);  in pcf85363_rtc_set_time()
212 	struct pcf85363 *pcf85363 = dev_get_drvdata(dev);  in pcf85363_rtc_read_alarm()  local
217 	ret = regmap_bulk_read(pcf85363->regmap, DT_SECOND_ALM1, buf,  in pcf85363_rtc_read_alarm()
228 	ret = regmap_read(pcf85363->regmap, CTRL_INTA_EN, &val);  in pcf85363_rtc_read_alarm()
237 static int _pcf85363_rtc_alarm_irq_enable(struct pcf85363 *pcf85363, unsigned  in _pcf85363_rtc_alarm_irq_enable()  argument
244 	ret = regmap_update_bits(pcf85363->regmap, DT_ALARM_EN, alarm_flags,  in _pcf85363_rtc_alarm_irq_enable()
249 	ret = regmap_update_bits(pcf85363->regmap, CTRL_INTA_EN,  in _pcf85363_rtc_alarm_irq_enable()
256 	return regmap_update_bits(pcf85363->regmap, CTRL_FLAGS, FLAGS_A1F, 0);  in _pcf85363_rtc_alarm_irq_enable()
262 	struct pcf85363 *pcf85363 = dev_get_drvdata(dev);  in pcf85363_rtc_alarm_irq_enable()  local
264 	return _pcf85363_rtc_alarm_irq_enable(pcf85363, enabled);  in pcf85363_rtc_alarm_irq_enable()
269 	struct pcf85363 *pcf85363 = dev_get_drvdata(dev);  in pcf85363_rtc_set_alarm()  local
283 	ret = _pcf85363_rtc_alarm_irq_enable(pcf85363, 0);  in pcf85363_rtc_set_alarm()
287 	ret = regmap_bulk_write(pcf85363->regmap, DT_SECOND_ALM1, buf,  in pcf85363_rtc_set_alarm()
292 	return _pcf85363_rtc_alarm_irq_enable(pcf85363, alrm->enabled);  in pcf85363_rtc_set_alarm()
297 	struct pcf85363 *pcf85363 = i2c_get_clientdata(dev_id);  in pcf85363_rtc_handle_irq()  local
301 	err = regmap_read(pcf85363->regmap, CTRL_FLAGS, &flags);  in pcf85363_rtc_handle_irq()
306 		rtc_update_irq(pcf85363->rtc, 1, RTC_IRQF | RTC_AF);  in pcf85363_rtc_handle_irq()
307 		regmap_update_bits(pcf85363->regmap, CTRL_FLAGS, FLAGS_A1F, 0);  in pcf85363_rtc_handle_irq()
325 	struct pcf85363 *pcf85363 = priv;  in pcf85363_nvram_read()  local
327 	return regmap_bulk_read(pcf85363->regmap, CTRL_RAM + offset,  in pcf85363_nvram_read()
334 	struct pcf85363 *pcf85363 = priv;  in pcf85363_nvram_write()  local
336 	return regmap_bulk_write(pcf85363->regmap, CTRL_RAM + offset,  in pcf85363_nvram_write()
343 	struct pcf85363 *pcf85363 = priv;  in pcf85x63_nvram_read()  local
347 	ret = regmap_read(pcf85363->regmap, CTRL_RAMBYTE, &tmp_val);  in pcf85x63_nvram_read()
356 	struct pcf85363 *pcf85363 = priv;  in pcf85x63_nvram_write()  local
360 	return regmap_write(pcf85363->regmap, CTRL_RAMBYTE,  in pcf85x63_nvram_write()
384 	struct pcf85363 *pcf85363;  in pcf85363_probe()  local
396 			.name = "pcf85363-",  in pcf85363_probe()
410 	pcf85363 = devm_kzalloc(&client->dev, sizeof(struct pcf85363),  in pcf85363_probe()
412 	if (!pcf85363)  in pcf85363_probe()
415 	pcf85363->regmap = devm_regmap_init_i2c(client, &config->regmap);  in pcf85363_probe()
416 	if (IS_ERR(pcf85363->regmap)) {  in pcf85363_probe()
418 		return PTR_ERR(pcf85363->regmap);  in pcf85363_probe()
421 	i2c_set_clientdata(client, pcf85363);  in pcf85363_probe()
423 	pcf85363->rtc = devm_rtc_allocate_device(&client->dev);  in pcf85363_probe()
424 	if (IS_ERR(pcf85363->rtc))  in pcf85363_probe()
425 		return PTR_ERR(pcf85363->rtc);  in pcf85363_probe()
427 	err = pcf85363_load_capacitance(pcf85363, client->dev.of_node);  in pcf85363_probe()
432 	pcf85363->rtc->ops = &rtc_ops;  in pcf85363_probe()
433 	pcf85363->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;  in pcf85363_probe()
434 	pcf85363->rtc->range_max = RTC_TIMESTAMP_END_2099;  in pcf85363_probe()
439 		regmap_write(pcf85363->regmap, CTRL_FLAGS, 0);  in pcf85363_probe()
440 		regmap_update_bits(pcf85363->regmap, CTRL_PIN_IO,  in pcf85363_probe()
452 						"pcf85363", client);  in pcf85363_probe()
462 		set_bit(RTC_FEATURE_ALARM, pcf85363->rtc->features);  in pcf85363_probe()
464 		clear_bit(RTC_FEATURE_ALARM, pcf85363->rtc->features);  in pcf85363_probe()
467 	ret = devm_rtc_register_device(pcf85363->rtc);  in pcf85363_probe()
470 		nvmem_cfg[i].priv = pcf85363;  in pcf85363_probe()
471 		devm_rtc_nvmem_register(pcf85363->rtc, &nvmem_cfg[i]);  in pcf85363_probe()
479 	{ .compatible = "nxp,pcf85363", .data = &pcf_85363_config },
486 		.name	= "pcf85363",
495 MODULE_DESCRIPTION("pcf85263/pcf85363 I2C RTC driver");