diff options
Diffstat (limited to 'drivers/rtc/rtc-ds1307.c')
| -rw-r--r-- | drivers/rtc/rtc-ds1307.c | 83 |
1 files changed, 25 insertions, 58 deletions
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 9f5f54ca039d..183cf7c01364 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -8,12 +8,12 @@ * Copyright (C) 2012 Bertrand Achard (nvram access fixes) */ -#include <linux/acpi.h> #include <linux/bcd.h> #include <linux/i2c.h> #include <linux/init.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> -#include <linux/of_device.h> +#include <linux/property.h> #include <linux/rtc/ds1307.h> #include <linux/rtc.h> #include <linux/slab.h> @@ -31,6 +31,7 @@ * That's a natural job for a factory or repair bench. */ enum ds_type { + unknown_ds_type, /* always first and 0 */ ds_1307, ds_1308, ds_1337, @@ -1090,7 +1091,6 @@ static const struct i2c_device_id ds1307_id[] = { }; MODULE_DEVICE_TABLE(i2c, ds1307_id); -#ifdef CONFIG_OF static const struct of_device_id ds1307_of_match[] = { { .compatible = "dallas,ds1307", @@ -1167,32 +1167,6 @@ static const struct of_device_id ds1307_of_match[] = { { } }; MODULE_DEVICE_TABLE(of, ds1307_of_match); -#endif - -#ifdef CONFIG_ACPI -static const struct acpi_device_id ds1307_acpi_ids[] = { - { .id = "DS1307", .driver_data = ds_1307 }, - { .id = "DS1308", .driver_data = ds_1308 }, - { .id = "DS1337", .driver_data = ds_1337 }, - { .id = "DS1338", .driver_data = ds_1338 }, - { .id = "DS1339", .driver_data = ds_1339 }, - { .id = "DS1388", .driver_data = ds_1388 }, - { .id = "DS1340", .driver_data = ds_1340 }, - { .id = "DS1341", .driver_data = ds_1341 }, - { .id = "DS3231", .driver_data = ds_3231 }, - { .id = "M41T0", .driver_data = m41t0 }, - { .id = "M41T00", .driver_data = m41t00 }, - { .id = "M41T11", .driver_data = m41t11 }, - { .id = "MCP7940X", .driver_data = mcp794xx }, - { .id = "MCP7941X", .driver_data = mcp794xx }, - { .id = "PT7C4338", .driver_data = ds_1307 }, - { .id = "RX8025", .driver_data = rx_8025 }, - { .id = "ISL12057", .driver_data = ds_1337 }, - { .id = "RX8130", .driver_data = rx_8130 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, ds1307_acpi_ids); -#endif /* * The ds1337 and ds1339 both have two alarms, but we only use the first @@ -1626,13 +1600,16 @@ static const struct clk_ops ds3231_clk_32khz_ops = { .recalc_rate = ds3231_clk_32khz_recalc_rate, }; +static const char *ds3231_clks_names[] = { + [DS3231_CLK_SQW] = "ds3231_clk_sqw", + [DS3231_CLK_32KHZ] = "ds3231_clk_32khz", +}; + static struct clk_init_data ds3231_clks_init[] = { [DS3231_CLK_SQW] = { - .name = "ds3231_clk_sqw", .ops = &ds3231_clk_sqw_ops, }, [DS3231_CLK_32KHZ] = { - .name = "ds3231_clk_32khz", .ops = &ds3231_clk_32khz_ops, }, }; @@ -1653,6 +1630,11 @@ static int ds3231_clks_register(struct ds1307 *ds1307) if (!onecell->clks) return -ENOMEM; + /* optional override of the clockname */ + device_property_read_string_array(ds1307->dev, "clock-output-names", + ds3231_clks_names, + ARRAY_SIZE(ds3231_clks_names)); + for (i = 0; i < ARRAY_SIZE(ds3231_clks_init); i++) { struct clk_init_data init = ds3231_clks_init[i]; @@ -1663,9 +1645,7 @@ static int ds3231_clks_register(struct ds1307 *ds1307) if (i == DS3231_CLK_SQW && test_bit(HAS_ALARM, &ds1307->flags)) continue; - /* optional override of the clockname */ - of_property_read_string_index(node, "clock-output-names", i, - &init.name); + init.name = ds3231_clks_names[i]; ds1307->clks[i].init = &init; onecell->clks[i] = devm_clk_register(ds1307->dev, @@ -1674,10 +1654,8 @@ static int ds3231_clks_register(struct ds1307 *ds1307) return PTR_ERR(onecell->clks[i]); } - if (!node) - return 0; - - of_clk_add_provider(node, of_clk_src_onecell_get, onecell); + if (node) + of_clk_add_provider(node, of_clk_src_onecell_get, onecell); return 0; } @@ -1761,6 +1739,7 @@ static int ds1307_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct ds1307 *ds1307; + const void *match; int err = -ENODEV; int tmp; const struct chip_desc *chip; @@ -1786,22 +1765,15 @@ static int ds1307_probe(struct i2c_client *client, i2c_set_clientdata(client, ds1307); - if (client->dev.of_node) { - ds1307->type = (enum ds_type) - of_device_get_match_data(&client->dev); + match = device_get_match_data(&client->dev); + if (match) { + ds1307->type = (enum ds_type)match; chip = &chips[ds1307->type]; } else if (id) { chip = &chips[id->driver_data]; ds1307->type = id->driver_data; } else { - const struct acpi_device_id *acpi_id; - - acpi_id = acpi_match_device(ACPI_PTR(ds1307_acpi_ids), - ds1307->dev); - if (!acpi_id) - return -ENODEV; - chip = &chips[acpi_id->driver_data]; - ds1307->type = acpi_id->driver_data; + return -ENODEV; } want_irq = client->irq > 0 && chip->alarm; @@ -1819,7 +1791,6 @@ static int ds1307_probe(struct i2c_client *client, trickle_charger_setup); } -#ifdef CONFIG_OF /* * For devices with no IRQ directly connected to the SoC, the RTC chip * can be forced as a wakeup source by stating that explicitly in @@ -1828,10 +1799,8 @@ static int ds1307_probe(struct i2c_client *client, * This will guarantee the 'wakealarm' sysfs entry is available on the device, * if supported by the RTC. */ - if (chip->alarm && of_property_read_bool(client->dev.of_node, - "wakeup-source")) + if (chip->alarm && device_property_read_bool(&client->dev, "wakeup-source")) ds1307_can_wakeup_device = true; -#endif switch (ds1307->type) { case ds_1337: @@ -2032,7 +2001,7 @@ static int ds1307_probe(struct i2c_client *client, if (err) return err; - err = rtc_register_device(ds1307->rtc); + err = devm_rtc_register_device(ds1307->rtc); if (err) return err; @@ -2047,8 +2016,7 @@ static int ds1307_probe(struct i2c_client *client, .priv = ds1307, }; - ds1307->rtc->nvram_old_abi = true; - rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); } ds1307_hwmon_register(ds1307); @@ -2064,8 +2032,7 @@ exit: static struct i2c_driver ds1307_driver = { .driver = { .name = "rtc-ds1307", - .of_match_table = of_match_ptr(ds1307_of_match), - .acpi_match_table = ACPI_PTR(ds1307_acpi_ids), + .of_match_table = ds1307_of_match, }, .probe = ds1307_probe, .id_table = ds1307_id, |