Lines Matching refs:ds1307
171 struct ds1307 { struct
194 u8 (*do_trickle_setup)(struct ds1307 *, u32, argument
211 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_get_time() local
213 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_get_time()
216 if (ds1307->type == rx_8130) { in ds1307_get_time()
218 ret = regmap_read(ds1307->regmap, RX8130_REG_FLAG, ®flag); in ds1307_get_time()
231 ret = regmap_bulk_read(ds1307->regmap, chip->offset, regs, in ds1307_get_time()
241 if (ds1307->type == m41t0 && in ds1307_get_time()
248 switch (ds1307->type) { in ds1307_get_time()
261 ret = regmap_read(ds1307->regmap, DS1307_REG_CONTROL, &tmp); in ds1307_get_time()
271 ret = regmap_read(ds1307->regmap, DS1340_REG_FLAG, &tmp); in ds1307_get_time()
278 ret = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &tmp); in ds1307_get_time()
298 if (ds1307->type == rx_8130) in ds1307_get_time()
322 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_set_time() local
323 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_set_time()
349 if (ds1307->type == rx_8130) in ds1307_set_time()
365 switch (ds1307->type) { in ds1307_set_time()
368 regmap_update_bits(ds1307->regmap, DS1307_REG_CONTROL, in ds1307_set_time()
372 regmap_update_bits(ds1307->regmap, DS1340_REG_FLAG, in ds1307_set_time()
376 regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1307_set_time()
394 result = regmap_bulk_write(ds1307->regmap, chip->offset, regs, in ds1307_set_time()
401 if (ds1307->type == rx_8130) { in ds1307_set_time()
403 result = regmap_write(ds1307->regmap, RX8130_REG_FLAG, in ds1307_set_time()
416 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_read_alarm() local
421 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, in ds1337_read_alarm()
455 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1337_set_alarm() local
467 ret = regmap_bulk_read(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
494 ret = regmap_bulk_write(ds1307->regmap, DS1339_REG_ALARM1_SECS, regs, in ds1337_set_alarm()
505 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, regs[7]); in ds1337_set_alarm()
513 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds1307_alarm_irq_enable() local
515 return regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_alarm_irq_enable()
520 static u8 do_trickle_setup_ds1339(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_ds1339() argument
538 dev_warn(ds1307->dev, in do_trickle_setup_ds1339()
545 static u8 do_trickle_setup_rx8130(struct ds1307 *ds1307, u32 ohms, bool diode) in do_trickle_setup_rx8130() argument
557 struct ds1307 *ds1307 = dev_id; in rx8130_irq() local
561 rtc_lock(ds1307->rtc); in rx8130_irq()
564 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
573 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_irq()
578 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in rx8130_irq()
581 rtc_unlock(ds1307->rtc); in rx8130_irq()
588 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_read_alarm() local
593 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_read_alarm()
599 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_read_alarm()
627 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_set_alarm() local
638 ret = regmap_bulk_read(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
647 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_EXTENSION, ctl, in rx8130_set_alarm()
657 ret = regmap_bulk_write(ds1307->regmap, RX8130_REG_ALARM_MIN, ald, in rx8130_set_alarm()
667 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, ctl[2]); in rx8130_set_alarm()
672 struct ds1307 *ds1307 = dev_get_drvdata(dev); in rx8130_alarm_irq_enable() local
675 ret = regmap_read(ds1307->regmap, RX8130_REG_CONTROL0, ®); in rx8130_alarm_irq_enable()
684 return regmap_write(ds1307->regmap, RX8130_REG_CONTROL0, reg); in rx8130_alarm_irq_enable()
689 struct ds1307 *ds1307 = dev_id; in mcp794xx_irq() local
690 struct mutex *lock = &ds1307->rtc->ops_lock; in mcp794xx_irq()
696 ret = regmap_read(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, ®); in mcp794xx_irq()
702 ret = regmap_write(ds1307->regmap, MCP794XX_REG_ALARM0_CTRL, reg); in mcp794xx_irq()
707 ret = regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_irq()
712 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in mcp794xx_irq()
722 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_read_alarm() local
727 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_read_alarm()
777 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_set_alarm() local
792 ret = regmap_bulk_read(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
812 ret = regmap_bulk_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs, in mcp794xx_set_alarm()
820 return regmap_write(ds1307->regmap, MCP794XX_REG_CONTROL, regs[0]); in mcp794xx_set_alarm()
825 struct ds1307 *ds1307 = dev_get_drvdata(dev); in mcp794xx_alarm_irq_enable() local
827 return regmap_update_bits(ds1307->regmap, MCP794XX_REG_CONTROL, in mcp794xx_alarm_irq_enable()
834 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_read_offset() local
838 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in m41txx_rtc_read_offset()
853 struct ds1307 *ds1307 = dev_get_drvdata(dev); in m41txx_rtc_set_offset() local
868 return regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, in m41txx_rtc_set_offset()
876 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_start() local
880 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_FLAG, in ds1388_wdt_start()
885 ret = regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
897 ret = regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_start()
902 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_start()
909 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_stop() local
911 return regmap_update_bits(ds1307->regmap, DS1388_REG_CONTROL, in ds1388_wdt_stop()
917 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_ping() local
920 return regmap_bulk_read(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_ping()
927 struct ds1307 *ds1307 = watchdog_get_drvdata(wdt_dev); in ds1388_wdt_set_timeout() local
934 return regmap_bulk_write(ds1307->regmap, DS1388_REG_WDOG_HUN_SECS, regs, in ds1388_wdt_set_timeout()
1156 struct ds1307 *ds1307 = dev_id; in ds1307_irq() local
1157 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1307_irq()
1161 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &stat); in ds1307_irq()
1167 regmap_write(ds1307->regmap, DS1337_REG_STATUS, stat); in ds1307_irq()
1169 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_irq()
1174 rtc_update_irq(ds1307->rtc, 1, RTC_AF | RTC_IRQF); in ds1307_irq()
1197 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_store() local
1207 regmap_update_bits(ds1307->regmap, M41TXX_REG_CONTROL, M41TXX_BIT_FT, in frequency_test_store()
1217 struct ds1307 *ds1307 = dev_get_drvdata(dev->parent); in frequency_test_show() local
1220 regmap_read(ds1307->regmap, M41TXX_REG_CONTROL, &ctrl_reg); in frequency_test_show()
1236 static int ds1307_add_frequency_test(struct ds1307 *ds1307) in ds1307_add_frequency_test() argument
1240 switch (ds1307->type) { in ds1307_add_frequency_test()
1244 err = rtc_add_group(ds1307->rtc, &rtc_freq_test_attr_group); in ds1307_add_frequency_test()
1260 struct ds1307 *ds1307 = priv; in ds1307_nvram_read() local
1261 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_read()
1263 return regmap_bulk_read(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_read()
1270 struct ds1307 *ds1307 = priv; in ds1307_nvram_write() local
1271 const struct chip_desc *chip = &chips[ds1307->type]; in ds1307_nvram_write()
1273 return regmap_bulk_write(ds1307->regmap, chip->nvram_offset + offset, in ds1307_nvram_write()
1279 static u8 ds1307_trickle_init(struct ds1307 *ds1307, in ds1307_trickle_init() argument
1288 if (device_property_read_u32(ds1307->dev, "trickle-resistor-ohms", in ds1307_trickle_init()
1295 if (!device_property_read_u32(ds1307->dev, "aux-voltage-chargeable", in ds1307_trickle_init()
1305 dev_warn(ds1307->dev, in ds1307_trickle_init()
1309 } else if (device_property_read_bool(ds1307->dev, in ds1307_trickle_init()
1314 return chip->do_trickle_setup(ds1307, ohms, diode); in ds1307_trickle_init()
1333 struct ds1307 *ds1307 = dev_get_drvdata(dev); in ds3231_hwmon_read_temp() local
1338 ret = regmap_bulk_read(ds1307->regmap, DS3231_REG_TEMPERATURE, in ds3231_hwmon_read_temp()
1374 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1378 if (ds1307->type != ds_3231) in ds1307_hwmon_register()
1381 dev = devm_hwmon_device_register_with_groups(ds1307->dev, ds1307->name, in ds1307_hwmon_register()
1382 ds1307, in ds1307_hwmon_register()
1385 dev_warn(ds1307->dev, "unable to register hwmon device %ld\n", in ds1307_hwmon_register()
1392 static void ds1307_hwmon_register(struct ds1307 *ds1307) in ds1307_hwmon_register() argument
1412 container_of(clk, struct ds1307, clks[DS3231_CLK_SQW])
1414 container_of(clk, struct ds1307, clks[DS3231_CLK_32KHZ])
1423 static int ds1337_write_control(struct ds1307 *ds1307, u8 mask, u8 value) in ds1337_write_control() argument
1425 struct mutex *lock = &ds1307->rtc->ops_lock; in ds1337_write_control()
1429 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_CONTROL, in ds1337_write_control()
1439 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_recalc_rate() local
1443 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_recalc_rate()
1470 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_set_rate() local
1488 return ds1337_write_control(ds1307, DS1337_BIT_RS1 | DS1337_BIT_RS2, in ds3231_clk_sqw_set_rate()
1494 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_prepare() local
1496 return ds1337_write_control(ds1307, DS1337_BIT_INTCN, 0); in ds3231_clk_sqw_prepare()
1501 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_unprepare() local
1503 ds1337_write_control(ds1307, DS1337_BIT_INTCN, DS1337_BIT_INTCN); in ds3231_clk_sqw_unprepare()
1508 struct ds1307 *ds1307 = clk_sqw_to_ds1307(hw); in ds3231_clk_sqw_is_prepared() local
1511 ret = regmap_read(ds1307->regmap, DS1337_REG_CONTROL, &control); in ds3231_clk_sqw_is_prepared()
1533 static int ds3231_clk_32khz_control(struct ds1307 *ds1307, bool enable) in ds3231_clk_32khz_control() argument
1535 struct mutex *lock = &ds1307->rtc->ops_lock; in ds3231_clk_32khz_control()
1539 ret = regmap_update_bits(ds1307->regmap, DS1337_REG_STATUS, in ds3231_clk_32khz_control()
1549 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_prepare() local
1551 return ds3231_clk_32khz_control(ds1307, true); in ds3231_clk_32khz_prepare()
1556 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_unprepare() local
1558 ds3231_clk_32khz_control(ds1307, false); in ds3231_clk_32khz_unprepare()
1563 struct ds1307 *ds1307 = clk_32khz_to_ds1307(hw); in ds3231_clk_32khz_is_prepared() local
1566 ret = regmap_read(ds1307->regmap, DS1337_REG_STATUS, &status); in ds3231_clk_32khz_is_prepared()
1594 static int ds3231_clks_register(struct ds1307 *ds1307) in ds3231_clks_register() argument
1596 struct device_node *node = ds1307->dev->of_node; in ds3231_clks_register()
1600 onecell = devm_kzalloc(ds1307->dev, sizeof(*onecell), GFP_KERNEL); in ds3231_clks_register()
1605 onecell->clks = devm_kcalloc(ds1307->dev, onecell->clk_num, in ds3231_clks_register()
1611 device_property_read_string_array(ds1307->dev, "clock-output-names", in ds3231_clks_register()
1622 if (i == DS3231_CLK_SQW && test_bit(RTC_FEATURE_ALARM, ds1307->rtc->features)) in ds3231_clks_register()
1626 ds1307->clks[i].init = &init; in ds3231_clks_register()
1628 onecell->clks[i] = devm_clk_register(ds1307->dev, in ds3231_clks_register()
1629 &ds1307->clks[i]); in ds3231_clks_register()
1640 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1644 if (ds1307->type != ds_3231) in ds1307_clks_register()
1647 ret = ds3231_clks_register(ds1307); in ds1307_clks_register()
1649 dev_warn(ds1307->dev, "unable to register clock device %d\n", in ds1307_clks_register()
1656 static void ds1307_clks_register(struct ds1307 *ds1307) in ds1307_clks_register() argument
1677 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1683 if (ds1307->type != ds_1388) in ds1307_wdt_register()
1686 wdt = devm_kzalloc(ds1307->dev, sizeof(*wdt), GFP_KERNEL); in ds1307_wdt_register()
1690 err = regmap_read(ds1307->regmap, DS1388_REG_FLAG, &val); in ds1307_wdt_register()
1700 watchdog_init_timeout(wdt, 0, ds1307->dev); in ds1307_wdt_register()
1701 watchdog_set_drvdata(wdt, ds1307); in ds1307_wdt_register()
1702 devm_watchdog_register_device(ds1307->dev, wdt); in ds1307_wdt_register()
1705 static void ds1307_wdt_register(struct ds1307 *ds1307) in ds1307_wdt_register() argument
1718 struct ds1307 *ds1307; in ds1307_probe() local
1729 ds1307 = devm_kzalloc(&client->dev, sizeof(struct ds1307), GFP_KERNEL); in ds1307_probe()
1730 if (!ds1307) in ds1307_probe()
1733 dev_set_drvdata(&client->dev, ds1307); in ds1307_probe()
1734 ds1307->dev = &client->dev; in ds1307_probe()
1735 ds1307->name = client->name; in ds1307_probe()
1737 ds1307->regmap = devm_regmap_init_i2c(client, ®map_config); in ds1307_probe()
1738 if (IS_ERR(ds1307->regmap)) { in ds1307_probe()
1739 dev_err(ds1307->dev, "regmap allocation failed\n"); in ds1307_probe()
1740 return PTR_ERR(ds1307->regmap); in ds1307_probe()
1743 i2c_set_clientdata(client, ds1307); in ds1307_probe()
1747 ds1307->type = (uintptr_t)match; in ds1307_probe()
1748 chip = &chips[ds1307->type]; in ds1307_probe()
1751 ds1307->type = id->driver_data; in ds1307_probe()
1759 trickle_charger_setup = ds1307_trickle_init(ds1307, chip); in ds1307_probe()
1764 dev_dbg(ds1307->dev, in ds1307_probe()
1767 regmap_write(ds1307->regmap, chip->trickle_charger_reg, in ds1307_probe()
1782 switch (ds1307->type) { in ds1307_probe()
1788 err = regmap_bulk_read(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1791 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1810 regmap_write(ds1307->regmap, DS1337_REG_CONTROL, in ds1307_probe()
1815 regmap_write(ds1307->regmap, DS1337_REG_STATUS, in ds1307_probe()
1817 dev_warn(ds1307->dev, "SET TIME!\n"); in ds1307_probe()
1822 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1825 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1832 regmap_write(ds1307->regmap, in ds1307_probe()
1835 dev_warn(ds1307->dev, in ds1307_probe()
1841 regmap_write(ds1307->regmap, in ds1307_probe()
1844 dev_warn(ds1307->dev, "power-on detected\n"); in ds1307_probe()
1849 regmap_write(ds1307->regmap, in ds1307_probe()
1852 dev_warn(ds1307->dev, "voltage drop detected\n"); in ds1307_probe()
1860 regmap_write(ds1307->regmap, in ds1307_probe()
1864 err = regmap_bulk_read(ds1307->regmap, in ds1307_probe()
1868 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1879 regmap_write(ds1307->regmap, in ds1307_probe()
1884 err = regmap_read(ds1307->regmap, DS1388_REG_CONTROL, &tmp); in ds1307_probe()
1886 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1893 regmap_write(ds1307->regmap, DS1388_REG_CONTROL, tmp); in ds1307_probe()
1901 err = regmap_bulk_read(ds1307->regmap, chip->offset, regs, in ds1307_probe()
1904 dev_dbg(ds1307->dev, "read error %d\n", err); in ds1307_probe()
1908 if (ds1307->type == mcp794xx && in ds1307_probe()
1910 regmap_write(ds1307->regmap, DS1307_REG_WDAY, in ds1307_probe()
1916 switch (ds1307->type) { in ds1307_probe()
1941 regmap_write(ds1307->regmap, chip->offset + DS1307_REG_HOUR, in ds1307_probe()
1945 ds1307->rtc = devm_rtc_allocate_device(ds1307->dev); in ds1307_probe()
1946 if (IS_ERR(ds1307->rtc)) in ds1307_probe()
1947 return PTR_ERR(ds1307->rtc); in ds1307_probe()
1950 device_set_wakeup_capable(ds1307->dev, true); in ds1307_probe()
1952 clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features); in ds1307_probe()
1955 dev_info(ds1307->dev, in ds1307_probe()
1958 clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, ds1307->rtc->features); in ds1307_probe()
1962 err = devm_request_threaded_irq(ds1307->dev, client->irq, NULL, in ds1307_probe()
1965 ds1307->name, ds1307); in ds1307_probe()
1968 device_set_wakeup_capable(ds1307->dev, false); in ds1307_probe()
1969 clear_bit(RTC_FEATURE_ALARM, ds1307->rtc->features); in ds1307_probe()
1970 dev_err(ds1307->dev, "unable to request IRQ!\n"); in ds1307_probe()
1972 dev_dbg(ds1307->dev, "got IRQ %d\n", client->irq); in ds1307_probe()
1976 ds1307->rtc->ops = chip->rtc_ops ?: &ds13xx_rtc_ops; in ds1307_probe()
1977 err = ds1307_add_frequency_test(ds1307); in ds1307_probe()
1981 err = devm_rtc_register_device(ds1307->rtc); in ds1307_probe()
1993 .priv = ds1307, in ds1307_probe()
1996 devm_rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); in ds1307_probe()
1999 ds1307_hwmon_register(ds1307); in ds1307_probe()
2000 ds1307_clks_register(ds1307); in ds1307_probe()
2001 ds1307_wdt_register(ds1307); in ds1307_probe()