linux-toradex.git/drivers/rtc/rtc-ds1307.c, branch v6.1

rtc: ds1307: switch to RTC_FEATURE_UPDATE_INTERRUPT

2022-03-23T18:58:38+00:00

Stop using uie_unsupported and clear RTC_FEATURE_UPDATE_INTERRUPT instead.

Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20220309162301.61679-3-alexandre.belloni@bootlin.com

rtc: ds1307: Fix wday settings for rx8130

2021-04-29T21:37:18+00:00

rx8130 wday specifies the bit position, not BCD.

Fixes: ee0981be7704 ("rtc: ds1307: Add support for Epson RX8130CE")
Signed-off-by: Nobuhiro Iwamatsu 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20210420023917.1949066-1-nobuhiro1.iwamatsu@toshiba.co.jp

rtc: ds1307: remove flags

2021-04-29T21:04:13+00:00

flags is now unused, drop it.

Tested-by: Łukasz Stelmach 
Reviewed-by: Łukasz Stelmach 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20210418000023.995758-2-alexandre.belloni@bootlin.com

rtc: ds1307: replace HAS_ALARM by RTC_FEATURE_ALARM

2021-04-29T21:04:13+00:00

The core now has RTC_FEATURE_ALARM for the driver to indicate whether
alarms are available. Use that instead of HAS_ALARM to ensure the alarm
callbacks are not even called.

Tested-by: Łukasz Stelmach 
Reviewed-by: Łukasz Stelmach 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20210418000023.995758-1-alexandre.belloni@bootlin.com

rtc: ds1307: use rtc_lock/rtc_unlock

2021-01-25T22:46:17+00:00

Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20210119220653.677750-4-alexandre.belloni@bootlin.com

rtc: rework rtc_register_device() resource management

2020-11-19T11:50:12+00:00

rtc_register_device() is a managed interface but it doesn't use devres
by itself - instead it marks an rtc_device as "registered" and the devres
callback for devm_rtc_allocate_device() takes care of resource release.

This doesn't correspond with the design behind devres where managed
structures should not be aware of being managed. The correct solution
here is to register a separate devres callback for unregistering the
device.

While at it: rename rtc_register_device() to devm_rtc_register_device()
and add it to the list of managed interfaces in devres.rst. This way we
can avoid any potential confusion of driver developers who may expect
there to exist a corresponding unregister function.

Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20201109163409.24301-8-brgl@bgdev.pl

rtc: add devm_ prefix to rtc_nvmem_register()

2020-11-19T11:50:11+00:00

rtc_nvmem_register() is a managed interface. It doesn't require any
release function to be called at driver detach. To avoid confusing
driver authors, let's rename it to devm_rtc_nvmem_register() and add it
to the list of managed interfaces in Documentation/.

Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20201109163409.24301-6-brgl@bgdev.pl

rtc: nvmem: remove nvram ABI

2020-11-19T11:50:11+00:00

The nvram sysfs attributes have been deprecated at least since v4.13, more
than 3 years ago and nobody ever complained about the deprecation warning.

Remove the sysfs attributes now.

[Bartosz: remove the declaration of rtc_nvmem_unregister()]

Signed-off-by: Alexandre Belloni 
Signed-off-by: Bartosz Golaszewski 
Link: https://lore.kernel.org/r/20201109163409.24301-5-brgl@bgdev.pl

rtc: ds1307: Drop of_match_ptr and CONFIG_OF protections

2020-11-17T19:25:42+00:00

These prevent use of this driver with ACPI via PRP0001.
Drop them to remove this restriction.

Also added mod_devicetable.h include given use of struct of_device_id.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Rafael J. Wysocki 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20201116142859.31257-3-andriy.shevchenko@linux.intel.com

rtc: ds1307: Make use of device properties

2020-11-17T19:25:34+00:00

Device property API allows to gather device resources from different sources,
such as ACPI. Convert the drivers to unleash the power of device property API.

Signed-off-by: Andy Shevchenko 
Reviewed-by: Rafael J. Wysocki 
Signed-off-by: Alexandre Belloni 
Link: https://lore.kernel.org/r/20201116142859.31257-2-andriy.shevchenko@linux.intel.com