Lines Matching full:pcf8563
3 * An I2C driver for the Philips PCF8563 RTC
11 * https://www.nxp.com/docs/en/data-sheet/PCF8563.pdf
63 struct pcf8563 { struct
67 * From PCF8563 datasheet: this bit is toggled when the years
87 static int pcf8563_set_alarm_mode(struct pcf8563 *pcf8563, bool on) in pcf8563_set_alarm_mode() argument
92 err = regmap_read(pcf8563->regmap, PCF8563_REG_ST2, &buf); in pcf8563_set_alarm_mode()
103 return regmap_write(pcf8563->regmap, PCF8563_REG_ST2, buf); in pcf8563_set_alarm_mode()
106 static int pcf8563_get_alarm_mode(struct pcf8563 *pcf8563, unsigned char *en, in pcf8563_get_alarm_mode() argument
112 err = regmap_read(pcf8563->regmap, PCF8563_REG_ST2, &buf); in pcf8563_get_alarm_mode()
126 struct pcf8563 *pcf8563 = dev_id; in pcf8563_irq() local
130 err = pcf8563_get_alarm_mode(pcf8563, NULL, &pending); in pcf8563_irq()
135 rtc_update_irq(pcf8563->rtc, 1, RTC_IRQF | RTC_AF); in pcf8563_irq()
136 pcf8563_set_alarm_mode(pcf8563, 1); in pcf8563_irq()
144 * In the routines that deal directly with the pcf8563 hardware, we use
149 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_rtc_read_time() local
153 err = regmap_bulk_read(pcf8563->regmap, PCF8563_REG_ST1, buf, in pcf8563_rtc_read_time()
180 pcf8563->c_polarity = (buf[PCF8563_REG_MO] & PCF8563_MO_C) ? in pcf8563_rtc_read_time()
194 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_rtc_set_time() local
215 if (pcf8563->c_polarity ? (tm->tm_year >= 100) : (tm->tm_year < 100)) in pcf8563_rtc_set_time()
220 return regmap_bulk_write(pcf8563->regmap, PCF8563_REG_SC, in pcf8563_rtc_set_time()
227 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_rtc_ioctl() local
232 ret = regmap_test_bits(pcf8563->regmap, PCF8563_REG_SC, in pcf8563_rtc_ioctl()
246 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_rtc_read_alarm() local
250 err = regmap_bulk_read(pcf8563->regmap, PCF8563_REG_AMN, buf, in pcf8563_rtc_read_alarm()
265 err = pcf8563_get_alarm_mode(pcf8563, &tm->enabled, &tm->pending); in pcf8563_rtc_read_alarm()
279 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_rtc_set_alarm() local
288 err = regmap_bulk_write(pcf8563->regmap, PCF8563_REG_SC, buf, in pcf8563_rtc_set_alarm()
293 return pcf8563_set_alarm_mode(pcf8563, !!tm->enabled); in pcf8563_rtc_set_alarm()
298 struct pcf8563 *pcf8563 = dev_get_drvdata(dev); in pcf8563_irq_enable() local
301 return pcf8563_set_alarm_mode(pcf8563, !!enabled); in pcf8563_irq_enable()
309 #define clkout_hw_to_pcf8563(_hw) container_of(_hw, struct pcf8563, clkout_hw)
321 struct pcf8563 *pcf8563 = clkout_hw_to_pcf8563(hw); in pcf8563_clkout_recalc_rate() local
325 ret = regmap_read(pcf8563->regmap, PCF8563_REG_CLKO, &buf); in pcf8563_clkout_recalc_rate()
348 struct pcf8563 *pcf8563 = clkout_hw_to_pcf8563(hw); in pcf8563_clkout_set_rate() local
352 ret = regmap_read(pcf8563->regmap, PCF8563_REG_CLKO, &buf); in pcf8563_clkout_set_rate()
360 return regmap_update_bits(pcf8563->regmap, in pcf8563_clkout_set_rate()
371 struct pcf8563 *pcf8563 = clkout_hw_to_pcf8563(hw); in pcf8563_clkout_control() local
375 ret = regmap_read(pcf8563->regmap, PCF8563_REG_CLKO, &buf); in pcf8563_clkout_control()
384 return regmap_update_bits(pcf8563->regmap, PCF8563_REG_CLKO, in pcf8563_clkout_control()
400 struct pcf8563 *pcf8563 = clkout_hw_to_pcf8563(hw); in pcf8563_clkout_is_prepared() local
404 ret = regmap_read(pcf8563->regmap, PCF8563_REG_CLKO, &buf); in pcf8563_clkout_is_prepared()
420 static struct clk *pcf8563_clkout_register_clk(struct pcf8563 *pcf8563) in pcf8563_clkout_register_clk() argument
422 struct device_node *node = pcf8563->rtc->dev.of_node; in pcf8563_clkout_register_clk()
428 ret = regmap_clear_bits(pcf8563->regmap, PCF8563_REG_CLKO, in pcf8563_clkout_register_clk()
433 init.name = "pcf8563-clkout"; in pcf8563_clkout_register_clk()
438 pcf8563->clkout_hw.init = &init; in pcf8563_clkout_register_clk()
444 clk = devm_clk_register(&pcf8563->rtc->dev, &pcf8563->clkout_hw); in pcf8563_clkout_register_clk()
470 struct pcf8563 *pcf8563; in pcf8563_probe() local
478 pcf8563 = devm_kzalloc(&client->dev, sizeof(struct pcf8563), in pcf8563_probe()
480 if (!pcf8563) in pcf8563_probe()
483 pcf8563->regmap = devm_regmap_init_i2c(client, ®map_config); in pcf8563_probe()
484 if (IS_ERR(pcf8563->regmap)) in pcf8563_probe()
485 return PTR_ERR(pcf8563->regmap); in pcf8563_probe()
487 i2c_set_clientdata(client, pcf8563); in pcf8563_probe()
491 err = regmap_set_bits(pcf8563->regmap, PCF8563_REG_TMRC, in pcf8563_probe()
499 err = regmap_write(pcf8563->regmap, PCF8563_REG_ST2, 0); in pcf8563_probe()
505 pcf8563->rtc = devm_rtc_allocate_device(&client->dev); in pcf8563_probe()
506 if (IS_ERR(pcf8563->rtc)) in pcf8563_probe()
507 return PTR_ERR(pcf8563->rtc); in pcf8563_probe()
509 pcf8563->rtc->ops = &pcf8563_rtc_ops; in pcf8563_probe()
510 /* the pcf8563 alarm only supports a minute accuracy */ in pcf8563_probe()
511 set_bit(RTC_FEATURE_ALARM_RES_MINUTE, pcf8563->rtc->features); in pcf8563_probe()
512 clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, pcf8563->rtc->features); in pcf8563_probe()
513 clear_bit(RTC_FEATURE_ALARM, pcf8563->rtc->features); in pcf8563_probe()
514 pcf8563->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; in pcf8563_probe()
515 pcf8563->rtc->range_max = RTC_TIMESTAMP_END_2099; in pcf8563_probe()
516 pcf8563->rtc->set_start_time = true; in pcf8563_probe()
539 set_bit(RTC_FEATURE_ALARM, pcf8563->rtc->features); in pcf8563_probe()
542 err = devm_rtc_register_device(pcf8563->rtc); in pcf8563_probe()
548 pcf8563_clkout_register_clk(pcf8563); in pcf8563_probe()
555 { "pcf8563" },
564 { .compatible = "nxp,pcf8563" },
575 .name = "rtc-pcf8563",
585 MODULE_DESCRIPTION("Philips PCF8563/Epson RTC8564 RTC driver");