Lines Matching refs:ds1307
172 struct ds1307 { struct
195 u8 (*do_trickle_setup)(struct ds1307 *, u32, argument
212 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_get_time() local
214 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_get_time()
217 if (ds1307->type == rx_8130) { in ds1307_get_time()
219 ret = regmap_read(ds1307->regmap, RX8130_REG_FLAG, ®flag); in ds1307_get_time()
232 ret = regmap_bulk_read(ds1307->regmap, chip->offset, regs, in ds1307_get_time()
242 if (ds1307->type == m41t0 && in ds1307_get_time()
246 } else if (ds1307->type == mcp794xx && in ds1307_get_time()
253 switch (ds1307->type) { in ds1307_get_time()
266 ret = regmap_read(ds1307->regmap, DS1307_REG_CONTROL, &tmp); in ds1307_get_time()
276 ret = regmap_read(ds1307->regmap, DS1340_REG_FLAG, &tmp); in ds1307_get_time()
283 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &tmp); in ds1307_get_time()
290 ret = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &tmp); in ds1307_get_time()
310 if (ds1307->type == rx_8130) in ds1307_get_time()
334 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_set_time() local
335 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_set_time()
361 if (ds1307->type == rx_8130) in ds1307_set_time()
377 switch (ds1307->type) { in ds1307_set_time()
380 regmap_update_bits(ds1307->regmap, DS1307_REG_CONTROL, in ds1307_set_time()
384 regmap_update_bits(ds1307->regmap, DS1340_REG_FLAG, in ds1307_set_time()
388 regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS, in ds1307_set_time()
392 regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1307_set_time()
410 result = regmap_bulk_write(ds1307->regmap, chip->offset, regs, in ds1307_set_time()
417 if (ds1307->type == rx_8130) { in ds1307_set_time()
419 result = regmap_write(ds1307->regmap, RX8130_REG_FLAG, in ds1307_set_time()
432 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_read_alarm() local
437 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, in ds1337_read_alarm()
471 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_set_alarm() local
483 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
510 ret = regmap_bulk_write(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
521 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, regs[7]); in ds1337_set_alarm()
529 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_alarm_irq_enable() local
531 return regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_alarm_irq_enable()
536 static u8 do_trickle_setup_ds1339(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_ds1339() argument
554 dev_warn(ds1307->dev, in do_trickle_setup_ds1339()
561 static u8 do_trickle_setup_rx8130(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_rx8130() argument
573 struct ds1307 *ds1307 = dev_id; in rx8130_irq() local
577 rtc_lock(ds1307->rtc); in rx8130_irq()
580 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
589 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
594 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in rx8130_irq()
597 rtc_unlock(ds1307->rtc); in rx8130_irq()
604 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_read_alarm() local
609 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_read_alarm()
615 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_read_alarm()
643 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_set_alarm() local
654 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
663 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
673 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_set_alarm()
683 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, ctl[2]); in rx8130_set_alarm()
688 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_alarm_irq_enable() local
691 ret = regmap_read(ds1307->regmap, RX8130_REG_CONTROL0, ®); in rx8130_alarm_irq_enable()
700 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, reg); in rx8130_alarm_irq_enable()
705 struct ds1307 *ds1307 = dev_id; in mcp794xx_irq() local
706 struct mutex *lock = &ds1307->rtc->ops_lock; in mcp794xx_irq()
712 ret = regmap_read(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, ®); in mcp794xx_irq()
718 ret = regmap_write(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, reg); in mcp794xx_irq()
723 ret = regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_irq()
728 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in mcp794xx_irq()
738 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_read_alarm() local
743 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_read_alarm()
793 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_set_alarm() local
808 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
828 ret = regmap_bulk_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
836 return regmap_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs[0]); in mcp794xx_set_alarm()
841 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_alarm_irq_enable() local
843 return regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_alarm_irq_enable()
850 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_read_offset() local
854 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in m41txx_rtc_read_offset()
869 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_set_offset() local
884 return regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, in m41txx_rtc_set_offset()
892 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_start() local
896 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1388_wdt_start()
901 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
913 ret = regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_start()
918 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
925 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_stop() local
927 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_stop()
933 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_ping() local
936 return regmap_bulk_read(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_ping()
943 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_set_timeout() local
950 return regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_set_timeout()
1172 struct ds1307 *ds1307 = dev_id; in ds1307_irq() local
1173 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1307_irq()
1177 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &stat); in ds1307_irq()
1183 regmap_write(ds1307->regmap, DS1337_REG_STATUS, stat); in ds1307_irq()
1185 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_irq()
1190 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in ds1307_irq()
1213 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_store() local
1223 regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, M41TXX_BIT_FT, in frequency_test_store()
1233 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_show() local
1236 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in frequency_test_show()
1252 static int ds1307_add_frequency_test(struct ds1307 *ds1307) in ds1307_add_frequency_test() argument
1256 switch (ds1307->type) { in ds1307_add_frequency_test()
1260 err = rtc_add_group(ds1307->rtc, &rtc_freq_test_attr_group); in ds1307_add_frequency_test()
1276 struct ds1307 *ds1307 = priv; in ds1307_nvram_read() local
1277 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_read()
1279 return regmap_bulk_read(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_read()
1286 struct ds1307 *ds1307 = priv; in ds1307_nvram_write() local
1287 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_write()
1289 return regmap_bulk_write(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_write()
1295 static u8 ds1307_trickle_init(struct ds1307 *ds1307, in ds1307_trickle_init() argument
1304 if (device_property_read_u32(ds1307->dev, "trickle-resistor-ohms", in ds1307_trickle_init()
1311 if (!device_property_read_u32(ds1307->dev, "aux-voltage-chargeable", in ds1307_trickle_init()
1321 dev_warn(ds1307->dev, in ds1307_trickle_init()
1325 } else if (device_property_read_bool(ds1307->dev, in ds1307_trickle_init()
1330 return chip->do_trickle_setup(ds1307, ohms, diode); in ds1307_trickle_init()
1349 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds3231_hwmon_read_temp() local
1354 ret = regmap_bulk_read(ds1307->regmap, DS3231_REG_TEMPERATURE, in ds3231_hwmon_read_temp()
1390 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1394 if (ds1307->type != ds_3231) in ds1307_hwmon_register()
1397 dev = devm_hwmon_device_register_with_groups(ds1307->dev, ds1307->name, in ds1307_hwmon_register()
1398 ds1307, in ds1307_hwmon_register()
1401 dev_warn(ds1307->dev, "unable to register hwmon device %ld\n", in ds1307_hwmon_register()
1408 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1428 container_of(clk, struct ds1307, clks[DS3231_CLK_SQW])
1430 container_of(clk, struct ds1307, clks[DS3231_CLK_32KHZ])
1439 static int ds1337_write_control(struct ds1307 *ds1307, u8 mask, u8 value) in ds1337_write_control() argument
1441 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1337_write_control()
1445 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1337_write_control()
1455 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_recalc_rate() local
1459 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_recalc_rate()
1491 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_set_rate() local
1509 return ds1337_write_control(ds1307, DS1337_BIT_RS1 | DS1337_BIT_RS2, in ds3231_clk_sqw_set_rate()
1515 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_prepare() local
1517 return ds1337_write_control(ds1307, DS1337_BIT_INTCN, 0); in ds3231_clk_sqw_prepare()
1522 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_unprepare() local
1524 ds1337_write_control(ds1307, DS1337_BIT_INTCN, DS1337_BIT_INTCN); in ds3231_clk_sqw_unprepare()
1529 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_is_prepared() local
1532 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_is_prepared()
1554 static int ds3231_clk_32khz_control(struct ds1307 *ds1307, bool enable) in ds3231_clk_32khz_control() argument
1556 struct mutex *lock = &ds1307->rtc->ops_lock; in ds3231_clk_32khz_control()
1560 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS, in ds3231_clk_32khz_control()
1570 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_prepare() local
1572 return ds3231_clk_32khz_control(ds1307, true); in ds3231_clk_32khz_prepare()
1577 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_unprepare() local
1579 ds3231_clk_32khz_control(ds1307, false); in ds3231_clk_32khz_unprepare()
1584 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_is_prepared() local
1587 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &status); in ds3231_clk_32khz_is_prepared()
1615 static int ds3231_clks_register(struct ds1307 *ds1307) in ds3231_clks_register() argument
1617 struct device_node *node = ds1307->dev->of_node; in ds3231_clks_register()
1621 onecell = devm_kzalloc(ds1307->dev, sizeof(*onecell), GFP_KERNEL); in ds3231_clks_register()
1626 onecell->clks = devm_kcalloc(ds1307->dev, onecell->clk_num, in ds3231_clks_register()
1632 device_property_read_string_array(ds1307->dev, "clock-output-names", in ds3231_clks_register()
1643 if (i == DS3231_CLK_SQW && test_bit(RTC_FEATURE_ALARM, ds1307->rtc->features)) in ds3231_clks_register()
1647 ds1307->clks[i].init = &init; in ds3231_clks_register()
1649 onecell->clks[i] = devm_clk_register(ds1307->dev, in ds3231_clks_register()
1650 &ds1307->clks[i]); in ds3231_clks_register()
1661 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1665 if (ds1307->type != ds_3231) in ds1307_clks_register()
1668 ret = ds3231_clks_register(ds1307); in ds1307_clks_register()
1670 dev_warn(ds1307->dev, "unable to register clock device %d\n", in ds1307_clks_register()
1677 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1698 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1704 if (ds1307->type != ds_1388) in ds1307_wdt_register()
1707 wdt = devm_kzalloc(ds1307->dev, sizeof(*wdt), GFP_KERNEL); in ds1307_wdt_register()
1711 err = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &val); in ds1307_wdt_register()
1721 watchdog_init_timeout(wdt, 0, ds1307->dev); in ds1307_wdt_register()
1722 watchdog_set_drvdata(wdt, ds1307); in ds1307_wdt_register()
1723 devm_watchdog_register_device(ds1307->dev, wdt); in ds1307_wdt_register()
1726 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1739 struct ds1307 *ds1307; in ds1307_probe() local
1750 ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL); in ds1307_probe()
1751 if (!ds1307) in ds1307_probe()
1754 dev_set_drvdata(&client->dev, ds1307); in ds1307_probe()
1755 ds1307->dev = &client->dev; in ds1307_probe()
1756 ds1307->name = client->name; in ds1307_probe()
1758 ds1307->regmap = devm_regmap_init_i2c(client, ®map_config); in ds1307_probe()
1759 if (IS_ERR(ds1307->regmap)) { in ds1307_probe()
1760 dev_err(ds1307->dev, "regmap allocation failed\n"); in ds1307_probe()
1761 return PTR_ERR(ds1307->regmap); in ds1307_probe()
1764 i2c_set_clientdata(client, ds1307); in ds1307_probe()
1768 ds1307->type = (uintptr_t)match; in ds1307_probe()
1769 chip = &chips[ds1307->type]; in ds1307_probe()
1772 ds1307->type = id->driver_data; in ds1307_probe()
1780 trickle_charger_setup = ds1307_trickle_init(ds1307, chip); in ds1307_probe()
1785 dev_dbg(ds1307->dev, in ds1307_probe()
1788 regmap_write(ds1307->regmap, chip->trickle_charger_reg, in ds1307_probe()
1803 switch (ds1307->type) { in ds1307_probe()
1809 err = regmap_bulk_read(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1812 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1829 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1834 dev_warn(ds1307->dev, "SET TIME!\n"); in ds1307_probe()
1839 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1842 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1849 regmap_write(ds1307->regmap, in ds1307_probe()
1852 dev_warn(ds1307->dev, in ds1307_probe()
1858 regmap_write(ds1307->regmap, in ds1307_probe()
1861 dev_warn(ds1307->dev, "power-on detected\n"); in ds1307_probe()
1866 regmap_write(ds1307->regmap, in ds1307_probe()
1869 dev_warn(ds1307->dev, "voltage drop detected\n"); in ds1307_probe()
1877 regmap_write(ds1307->regmap, in ds1307_probe()
1881 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1885 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1896 regmap_write(ds1307->regmap, in ds1307_probe()
1901 err = regmap_read(ds1307->regmap, DS1388_REG_CONTROL, &tmp); in ds1307_probe()
1903 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1910 regmap_write(ds1307->regmap, DS1388_REG_CONTROL, tmp); in ds1307_probe()
1918 err = regmap_bulk_read(ds1307->regmap, chip->offset, regs, in ds1307_probe()
1921 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1925 if (ds1307->type == mcp794xx && in ds1307_probe()
1927 regmap_write(ds1307->regmap, DS1307_REG_WDAY, in ds1307_probe()
1933 switch (ds1307->type) { in ds1307_probe()
1958 regmap_write(ds1307->regmap, chip->offset + DS1307_REG_HOUR, in ds1307_probe()
1962 ds1307->rtc = devm_rtc_allocate_device(ds1307->dev); in ds1307_probe()
1963 if (IS_ERR(ds1307->rtc)) in ds1307_probe()
1964 return PTR_ERR(ds1307->rtc); in ds1307_probe()
1967 device_set_wakeup_capable(ds1307->dev, true); in ds1307_probe()
1969 clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features); in ds1307_probe()
1972 dev_info(ds1307->dev, in ds1307_probe()
1975 clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, ds1307->rtc->features); in ds1307_probe()
1979 err = devm_request_threaded_irq(ds1307->dev, client->irq, NULL, in ds1307_probe()
1982 ds1307->name, ds1307); in ds1307_probe()
1985 device_set_wakeup_capable(ds1307->dev, false); in ds1307_probe()
1986 clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features); in ds1307_probe()
1987 dev_err(ds1307->dev, "unable to request IRQ!\n"); in ds1307_probe()
1989 dev_dbg(ds1307->dev, "got IRQ %d\n", client->irq); in ds1307_probe()
1993 ds1307->rtc->ops = chip->rtc_ops ?: &ds13xx_rtc_ops; in ds1307_probe()
1994 err = ds1307_add_frequency_test(ds1307); in ds1307_probe()
1998 err = devm_rtc_register_device(ds1307->rtc); in ds1307_probe()
2010 .priv = ds1307, in ds1307_probe()
2013 devm_rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); in ds1307_probe()
2016 ds1307_hwmon_register(ds1307); in ds1307_probe()
2017 ds1307_clks_register(ds1307); in ds1307_probe()
2018 ds1307_wdt_register(ds1307); in ds1307_probe()