Lines Matching refs:ds1307
169 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()
249 switch (ds1307->type) { in ds1307_get_time()
262 ret = regmap_read(ds1307->regmap, DS1307_REG_CONTROL, &tmp); in ds1307_get_time()
272 ret = regmap_read(ds1307->regmap, DS1340_REG_FLAG, &tmp); in ds1307_get_time()
279 ret = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &tmp); in ds1307_get_time()
299 if (ds1307->type == rx_8130) in ds1307_get_time()
323 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_set_time() local
324 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_set_time()
350 if (ds1307->type == rx_8130) in ds1307_set_time()
366 switch (ds1307->type) { in ds1307_set_time()
369 regmap_update_bits(ds1307->regmap, DS1307_REG_CONTROL, in ds1307_set_time()
373 regmap_update_bits(ds1307->regmap, DS1340_REG_FLAG, in ds1307_set_time()
377 regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1307_set_time()
395 result = regmap_bulk_write(ds1307->regmap, chip->offset, regs, in ds1307_set_time()
402 if (ds1307->type == rx_8130) { in ds1307_set_time()
404 result = regmap_write(ds1307->regmap, RX8130_REG_FLAG, in ds1307_set_time()
417 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_read_alarm() local
421 if (!test_bit(HAS_ALARM, &ds1307->flags)) in ds1337_read_alarm()
425 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, in ds1337_read_alarm()
459 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_set_alarm() local
464 if (!test_bit(HAS_ALARM, &ds1307->flags)) in ds1337_set_alarm()
474 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
501 ret = regmap_bulk_write(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
512 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, regs[7]); in ds1337_set_alarm()
520 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_alarm_irq_enable() local
522 if (!test_bit(HAS_ALARM, &ds1307->flags)) in ds1307_alarm_irq_enable()
525 return regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_alarm_irq_enable()
530 static u8 do_trickle_setup_ds1339(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_ds1339() argument
548 dev_warn(ds1307->dev, in do_trickle_setup_ds1339()
555 static u8 do_trickle_setup_rx8130(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_rx8130() argument
567 struct ds1307 *ds1307 = dev_id; in rx8130_irq() local
568 struct mutex *lock = &ds1307->rtc->ops_lock; in rx8130_irq()
575 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
584 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
589 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in rx8130_irq()
599 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_read_alarm() local
603 if (!test_bit(HAS_ALARM, &ds1307->flags)) in rx8130_read_alarm()
607 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_read_alarm()
613 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_read_alarm()
641 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_set_alarm() local
645 if (!test_bit(HAS_ALARM, &ds1307->flags)) in rx8130_set_alarm()
655 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
664 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
674 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_set_alarm()
684 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, ctl[2]); in rx8130_set_alarm()
689 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_alarm_irq_enable() local
692 if (!test_bit(HAS_ALARM, &ds1307->flags)) in rx8130_alarm_irq_enable()
695 ret = regmap_read(ds1307->regmap, RX8130_REG_CONTROL0, ®); in rx8130_alarm_irq_enable()
704 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, reg); in rx8130_alarm_irq_enable()
709 struct ds1307 *ds1307 = dev_id; in mcp794xx_irq() local
710 struct mutex *lock = &ds1307->rtc->ops_lock; in mcp794xx_irq()
716 ret = regmap_read(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, ®); in mcp794xx_irq()
722 ret = regmap_write(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, reg); in mcp794xx_irq()
727 ret = regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_irq()
732 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in mcp794xx_irq()
742 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_read_alarm() local
746 if (!test_bit(HAS_ALARM, &ds1307->flags)) in mcp794xx_read_alarm()
750 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_read_alarm()
800 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_set_alarm() local
804 if (!test_bit(HAS_ALARM, &ds1307->flags)) in mcp794xx_set_alarm()
818 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
838 ret = regmap_bulk_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
846 return regmap_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs[0]); in mcp794xx_set_alarm()
851 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_alarm_irq_enable() local
853 if (!test_bit(HAS_ALARM, &ds1307->flags)) in mcp794xx_alarm_irq_enable()
856 return regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_alarm_irq_enable()
863 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_read_offset() local
867 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in m41txx_rtc_read_offset()
882 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_set_offset() local
897 return regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, in m41txx_rtc_set_offset()
905 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_start() local
909 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1388_wdt_start()
914 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
926 ret = regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_start()
931 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
938 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_stop() local
940 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_stop()
946 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_ping() local
949 return regmap_bulk_read(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_ping()
956 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_set_timeout() local
963 return regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_set_timeout()
1212 struct ds1307 *ds1307 = dev_id; in ds1307_irq() local
1213 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1307_irq()
1217 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &stat); in ds1307_irq()
1223 regmap_write(ds1307->regmap, DS1337_REG_STATUS, stat); in ds1307_irq()
1225 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_irq()
1230 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in ds1307_irq()
1253 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_store() local
1263 regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, M41TXX_BIT_FT, in frequency_test_store()
1273 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_show() local
1276 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in frequency_test_show()
1293 static int ds1307_add_frequency_test(struct ds1307 *ds1307) in ds1307_add_frequency_test() argument
1297 switch (ds1307->type) { in ds1307_add_frequency_test()
1301 err = rtc_add_group(ds1307->rtc, &rtc_freq_test_attr_group); in ds1307_add_frequency_test()
1317 struct ds1307 *ds1307 = priv; in ds1307_nvram_read() local
1318 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_read()
1320 return regmap_bulk_read(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_read()
1327 struct ds1307 *ds1307 = priv; in ds1307_nvram_write() local
1328 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_write()
1330 return regmap_bulk_write(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_write()
1336 static u8 ds1307_trickle_init(struct ds1307 *ds1307, in ds1307_trickle_init() argument
1345 if (device_property_read_u32(ds1307->dev, "trickle-resistor-ohms", in ds1307_trickle_init()
1352 if (!device_property_read_u32(ds1307->dev, "aux-voltage-chargeable", in ds1307_trickle_init()
1362 dev_warn(ds1307->dev, in ds1307_trickle_init()
1366 } else if (device_property_read_bool(ds1307->dev, in ds1307_trickle_init()
1371 return chip->do_trickle_setup(ds1307, ohms, diode); in ds1307_trickle_init()
1390 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds3231_hwmon_read_temp() local
1395 ret = regmap_bulk_read(ds1307->regmap, DS3231_REG_TEMPERATURE, in ds3231_hwmon_read_temp()
1431 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1435 if (ds1307->type != ds_3231) in ds1307_hwmon_register()
1438 dev = devm_hwmon_device_register_with_groups(ds1307->dev, ds1307->name, in ds1307_hwmon_register()
1439 ds1307, in ds1307_hwmon_register()
1442 dev_warn(ds1307->dev, "unable to register hwmon device %ld\n", in ds1307_hwmon_register()
1449 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1469 container_of(clk, struct ds1307, clks[DS3231_CLK_SQW])
1471 container_of(clk, struct ds1307, clks[DS3231_CLK_32KHZ])
1480 static int ds1337_write_control(struct ds1307 *ds1307, u8 mask, u8 value) in ds1337_write_control() argument
1482 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1337_write_control()
1486 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1337_write_control()
1496 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_recalc_rate() local
1500 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_recalc_rate()
1527 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_set_rate() local
1545 return ds1337_write_control(ds1307, DS1337_BIT_RS1 | DS1337_BIT_RS2, in ds3231_clk_sqw_set_rate()
1551 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_prepare() local
1553 return ds1337_write_control(ds1307, DS1337_BIT_INTCN, 0); in ds3231_clk_sqw_prepare()
1558 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_unprepare() local
1560 ds1337_write_control(ds1307, DS1337_BIT_INTCN, DS1337_BIT_INTCN); in ds3231_clk_sqw_unprepare()
1565 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_is_prepared() local
1568 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_is_prepared()
1590 static int ds3231_clk_32khz_control(struct ds1307 *ds1307, bool enable) in ds3231_clk_32khz_control() argument
1592 struct mutex *lock = &ds1307->rtc->ops_lock; in ds3231_clk_32khz_control()
1596 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS, in ds3231_clk_32khz_control()
1606 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_prepare() local
1608 return ds3231_clk_32khz_control(ds1307, true); in ds3231_clk_32khz_prepare()
1613 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_unprepare() local
1615 ds3231_clk_32khz_control(ds1307, false); in ds3231_clk_32khz_unprepare()
1620 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_is_prepared() local
1623 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &status); in ds3231_clk_32khz_is_prepared()
1648 static int ds3231_clks_register(struct ds1307 *ds1307) in ds3231_clks_register() argument
1650 struct device_node *node = ds1307->dev->of_node; in ds3231_clks_register()
1654 onecell = devm_kzalloc(ds1307->dev, sizeof(*onecell), GFP_KERNEL); in ds3231_clks_register()
1659 onecell->clks = devm_kcalloc(ds1307->dev, onecell->clk_num, in ds3231_clks_register()
1671 if (i == DS3231_CLK_SQW && test_bit(HAS_ALARM, &ds1307->flags)) in ds3231_clks_register()
1677 ds1307->clks[i].init = &init; in ds3231_clks_register()
1679 onecell->clks[i] = devm_clk_register(ds1307->dev, in ds3231_clks_register()
1680 &ds1307->clks[i]); in ds3231_clks_register()
1693 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1697 if (ds1307->type != ds_3231) in ds1307_clks_register()
1700 ret = ds3231_clks_register(ds1307); in ds1307_clks_register()
1702 dev_warn(ds1307->dev, "unable to register clock device %d\n", in ds1307_clks_register()
1709 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1730 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1736 if (ds1307->type != ds_1388) in ds1307_wdt_register()
1739 wdt = devm_kzalloc(ds1307->dev, sizeof(*wdt), GFP_KERNEL); in ds1307_wdt_register()
1743 err = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &val); in ds1307_wdt_register()
1753 watchdog_init_timeout(wdt, 0, ds1307->dev); in ds1307_wdt_register()
1754 watchdog_set_drvdata(wdt, ds1307); in ds1307_wdt_register()
1755 devm_watchdog_register_device(ds1307->dev, wdt); in ds1307_wdt_register()
1758 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1771 struct ds1307 *ds1307; in ds1307_probe() local
1781 ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL); in ds1307_probe()
1782 if (!ds1307) in ds1307_probe()
1785 dev_set_drvdata(&client->dev, ds1307); in ds1307_probe()
1786 ds1307->dev = &client->dev; in ds1307_probe()
1787 ds1307->name = client->name; in ds1307_probe()
1789 ds1307->regmap = devm_regmap_init_i2c(client, ®map_config); in ds1307_probe()
1790 if (IS_ERR(ds1307->regmap)) { in ds1307_probe()
1791 dev_err(ds1307->dev, "regmap allocation failed\n"); in ds1307_probe()
1792 return PTR_ERR(ds1307->regmap); in ds1307_probe()
1795 i2c_set_clientdata(client, ds1307); in ds1307_probe()
1798 ds1307->type = (enum ds_type) in ds1307_probe()
1800 chip = &chips[ds1307->type]; in ds1307_probe()
1803 ds1307->type = id->driver_data; in ds1307_probe()
1808 ds1307->dev); in ds1307_probe()
1812 ds1307->type = acpi_id->driver_data; in ds1307_probe()
1818 trickle_charger_setup = ds1307_trickle_init(ds1307, chip); in ds1307_probe()
1823 dev_dbg(ds1307->dev, in ds1307_probe()
1826 regmap_write(ds1307->regmap, chip->trickle_charger_reg, in ds1307_probe()
1844 switch (ds1307->type) { in ds1307_probe()
1850 err = regmap_bulk_read(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1853 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1872 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1877 regmap_write(ds1307->regmap, DS1337_REG_STATUS, in ds1307_probe()
1879 dev_warn(ds1307->dev, "SET TIME!\n"); in ds1307_probe()
1884 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1887 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1894 regmap_write(ds1307->regmap, in ds1307_probe()
1897 dev_warn(ds1307->dev, in ds1307_probe()
1903 regmap_write(ds1307->regmap, in ds1307_probe()
1906 dev_warn(ds1307->dev, "power-on detected\n"); in ds1307_probe()
1911 regmap_write(ds1307->regmap, in ds1307_probe()
1914 dev_warn(ds1307->dev, "voltage drop detected\n"); in ds1307_probe()
1922 regmap_write(ds1307->regmap, in ds1307_probe()
1926 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1930 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1941 regmap_write(ds1307->regmap, in ds1307_probe()
1946 err = regmap_read(ds1307->regmap, DS1388_REG_CONTROL, &tmp); in ds1307_probe()
1948 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1955 regmap_write(ds1307->regmap, DS1388_REG_CONTROL, tmp); in ds1307_probe()
1963 err = regmap_bulk_read(ds1307->regmap, chip->offset, regs, in ds1307_probe()
1966 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1970 if (ds1307->type == mcp794xx && in ds1307_probe()
1972 regmap_write(ds1307->regmap, DS1307_REG_WDAY, in ds1307_probe()
1978 switch (ds1307->type) { in ds1307_probe()
2003 regmap_write(ds1307->regmap, chip->offset + DS1307_REG_HOUR, in ds1307_probe()
2008 device_set_wakeup_capable(ds1307->dev, true); in ds1307_probe()
2009 set_bit(HAS_ALARM, &ds1307->flags); in ds1307_probe()
2012 ds1307->rtc = devm_rtc_allocate_device(ds1307->dev); in ds1307_probe()
2013 if (IS_ERR(ds1307->rtc)) in ds1307_probe()
2014 return PTR_ERR(ds1307->rtc); in ds1307_probe()
2017 dev_info(ds1307->dev, in ds1307_probe()
2020 ds1307->rtc->uie_unsupported = 1; in ds1307_probe()
2024 err = devm_request_threaded_irq(ds1307->dev, client->irq, NULL, in ds1307_probe()
2027 ds1307->name, ds1307); in ds1307_probe()
2030 device_set_wakeup_capable(ds1307->dev, false); in ds1307_probe()
2031 clear_bit(HAS_ALARM, &ds1307->flags); in ds1307_probe()
2032 dev_err(ds1307->dev, "unable to request IRQ!\n"); in ds1307_probe()
2034 dev_dbg(ds1307->dev, "got IRQ %d\n", client->irq); in ds1307_probe()
2038 ds1307->rtc->ops = chip->rtc_ops ?: &ds13xx_rtc_ops; in ds1307_probe()
2039 err = ds1307_add_frequency_test(ds1307); in ds1307_probe()
2043 err = rtc_register_device(ds1307->rtc); in ds1307_probe()
2055 .priv = ds1307, in ds1307_probe()
2058 ds1307->rtc->nvram_old_abi = true; in ds1307_probe()
2059 rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); in ds1307_probe()
2062 ds1307_hwmon_register(ds1307); in ds1307_probe()
2063 ds1307_clks_register(ds1307); in ds1307_probe()
2064 ds1307_wdt_register(ds1307); in ds1307_probe()