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Author SHA1 Message Date
Alexandre Belloni
fb38b5da90 rtc: ds1672: quiet maybe-unused variable warning 
When CONFIG_OF is disabled then the matching table is not referenced.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210202112219.3610853-7-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
97de1f587a rtc: digicolor: quiet maybe-unused variable warning 
When CONFIG_OF is disabled then the matching table is not referenced.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Link: https://lore.kernel.org/r/20210202112219.3610853-6-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
ae1247f79d rtc: brcmstb-waketimer: quiet maybe-unused variable warning 
When CONFIG_OF is disabled then the matching table is not referenced.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20210202112219.3610853-5-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
b8ded8177a rtc: bq32k: quiet maybe-unused variable warning 
When CONFIG_OF is disabled then the matching table is not referenced.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210202112219.3610853-4-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
8792bab957 rtc: armada38x: depend on OF 
The driver will compile with warning without OF because armada38x_data and
armada8k_data will be defined but not used. It would be possible to move
then in the #ifdef CONFIG_OF section but then their members will be defined
but not used. Instead of moving most of the driver in the #ifdef, simply
depend on OF.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210202112219.3610853-3-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
d5328499bf rtc: class: remove bogus documentation 
rtc_device_unregister is gone since commit fdcfd85433 ("rtc: rework
rtc_register_device() resource management"). Remove its documentation.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210202112219.3610853-2-alexandre.belloni@bootlin.com
 2021-02-06 00:58:24 +01:00
Alexandre Belloni
3b8fc144d9 dt-bindings: rtc: pcf2127: update bindings 
The NXP pcf2127 supports reset-source.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210202000634.3438575-1-alexandre.belloni@bootlin.com
 2021-02-06 00:57:26 +01:00
Alexandre Belloni
c37b643026 rtc: rv3028: remove useless warning messages 
Remove voltage low messages as userspace has a proper way to get the
information and react on it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210126221435.2152339-2-alexandre.belloni@bootlin.com
 2021-02-06 00:56:31 +01:00
Alexandre Belloni
f007c479c2 rtc: rv3028: fix PORF handling 
The PORF bit is cleared on interrupts which prevents the driver to know
when the time and date are invalid. Stop clearing PORF in the interrupt
handler.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210126221435.2152339-1-alexandre.belloni@bootlin.com
 2021-02-06 00:56:30 +01:00
Xiaofei Tan
0c1095d334 rtc: mxc_v2: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-7-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:48 +01:00
Xiaofei Tan
3f2d301847 rtc: mxc: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-6-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:48 +01:00
Xiaofei Tan
669022c29a rtc: tegra: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-5-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:47 +01:00
Xiaofei Tan
be3df3f858 rtc: r7301: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-4-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:47 +01:00
Xiaofei Tan
5131797556 rtc: pm8xxx: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-3-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:47 +01:00
Xiaofei Tan
6950d046eb rtc: cmos: Replace spin_lock_irqsave with spin_lock in hard IRQ 
It is redundant to do irqsave and irqrestore in hardIRQ context, where
it has been in a irq-disabled context.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1612355981-6764-2-git-send-email-tanxiaofei@huawei.com
 2021-02-06 00:50:47 +01:00
David Gow
ddd0521549 rtc: zynqmp: depend on HAS_IOMEM 
The Xilinx zynqmp RTC driver makes use of IOMEM functions like
devm_platform_ioremap_resource(), which are only available if
CONFIG_HAS_IOMEM is defined.

This causes the driver not to be enable under make ARCH=um allyesconfig,
even though it won't build.

By adding a dependency on HAS_IOMEM, the driver will not be enabled on
architectures which don't support it.

Fixes: 09ef18bcd5 ("rtc: use devm_platform_ioremap_resource() to simplify code")
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210127035146.1523286-1-davidgow@google.com
 2021-02-03 00:55:01 +01:00
Philipp Rosenberger
15f57b3e31 rtc: pcf2127: Run a OTP refresh if not done before 
The datasheet of the PCF2127 states, it is recommended to process an OTP
refresh once the power is up and the oscillator is operating stable. The
OTP refresh takes less than 100 ms to complete.

Signed-off-by: Philipp Rosenberger <p.rosenberger@kunbus.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210118085752.5759-3-p.rosenberger@kunbus.com
 2021-01-26 00:27:06 +01:00
Philipp Rosenberger
b9ac079abe rtc: pcf2127: Disable Power-On Reset Override 
To resume normal operation after a total power loss (no or empty
battery) the "Power-On Reset Override (PORO)" facility needs to be
disabled.

The register reset value sets the PORO enabled and the data sheet
recommends setting it to disabled for normal operation.

From what I've seen on the PCF2127 and PCF2129 there is no event
generated at the interrupt pin (INT), as long the PORO bit is set. This
behavior is not documented in the manual.

Signed-off-by: Philipp Rosenberger <p.rosenberger@kunbus.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210118085752.5759-2-p.rosenberger@kunbus.com
 2021-01-26 00:26:16 +01:00
Dmitry Osipenko
454ba154a6 rtc: tps65910: Support wakeup-source property 
TPS65910 is a PMIC MFD device and RTC is one of its functions. The
wakeup-source DT property is specified for the parent MFD device and we
need to use this property for the RTC in order to allow to use RTC alarm
for waking up system from suspend by default, instead of requiring user
to enable wakeup manually via sysfs.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210120211603.18555-1-digetx@gmail.com
 2021-01-25 23:57:24 +01:00
Alexandre Belloni
f66e7f2d32 rtc: stm32: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-14-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
31247546b4 rtc: rx8025: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-13-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
2dbbedb9b3 rtc: rx8010: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-12-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
2a5654fe2b rtc: rv3029: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-11-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
a82430fd2d rtc: pcf2123: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-10-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
cc92301784 rtc: mcp795: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-9-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
06c6e32167 rtc: m41t80: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-8-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
92e2c3e61d rtc: hym8563: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-7-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
3aa7eaf238 rtc: ds3232: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-6-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
811c791660 rtc: ds1685: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20210119220653.677750-5-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
5923819274 rtc: ds1307: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-4-alexandre.belloni@bootlin.com
 2021-01-25 23:46:17 +01:00
Alexandre Belloni
d57949bb3c rtc: ds1305: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-3-alexandre.belloni@bootlin.com
 2021-01-25 23:46:16 +01:00
Alexandre Belloni
3fbd293c16 rtc: asm9260: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210119220653.677750-2-alexandre.belloni@bootlin.com
 2021-01-25 23:46:16 +01:00
Alexandre Belloni
de490e0580 rtc: ac100: use rtc_lock/rtc_unlock 
Avoid accessing directly rtc->ops_lock and use the RTC core helpers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210125221402.1958484-1-alexandre.belloni@bootlin.com
 2021-01-25 23:45:37 +01:00
Arnd Bergmann
2f58f5eea8 rtc: remove ste ab3100 driver 
The ST-Ericsson U300 platform is getting removed, so this driver is no
longer needed.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210120154158.1860736-4-arnd@kernel.org
 2021-01-23 14:57:21 +01:00
Arnd Bergmann
dd2d3b4003 rtc: remove ste coh901 driver 
The ST-Ericsson U300 platform is getting removed, so this driver is no
longer needed.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210120154158.1860736-3-arnd@kernel.org
 2021-01-23 14:57:21 +01:00
Arnd Bergmann
9d0735519f rtc: remove sirfsoc driver 
The CSR SiRF prima2/atlas platforms are getting removed, so this driver
is no longer needed.

Cc: Barry Song <baohua@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Barry Song <baohua@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210120154158.1860736-2-arnd@kernel.org
 2021-01-23 14:57:21 +01:00
Alexandre Belloni
12b1ef321a rtc: tps65910: remove tps65910_rtc_ops_noirq 
Clear RTC_FEATURE_ALARM to signal that alarms are not available instead of
having a supplementary struct rtc_class_ops without alarm callbacks.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-18-alexandre.belloni@bootlin.com
 2021-01-16 23:19:27 +01:00
Alexandre Belloni
45909e5cda rtc: rv8803: constify rv8803_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-17-alexandre.belloni@bootlin.com
 2021-01-16 23:19:27 +01:00
Alexandre Belloni
19588d50a2 rtc: rv3032: constify rv3032_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-16-alexandre.belloni@bootlin.com
 2021-01-16 23:19:27 +01:00
Alexandre Belloni
9476b67bf9 rtc: rv3029: constify rv3029_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-15-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
0f7695691b rtc: rv3028: constify rv3028_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-14-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
50f97e919f rtc: opal: constify opal_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-13-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
3948a86682 rtc: m41t80: constify m41t80_rtc_ops 
Use RTC_FEATURE_ALARM to signal to the core whether alarms are available
instead of changing the global struct rtc_class_ops, allowing to make it
const.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-12-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
732b7341b1 rtc: pcf85363: drop a struct rtc_class_ops 
Merge both struct rtc_class_ops in a single one and use RTC_FEATURE_ALARM
to signal to the core whether alarms are available.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-11-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
aaaea29cb1 rtc: rx8010: drop a struct rtc_class_ops 
Merge both struct rtc_class_ops in a single one and use RTC_FEATURE_ALARM
to signal to the core whether alarms are available.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-10-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
d4eaffe28b rtc: pcf85063: remove pcf85063_rtc_ops_alarm 
Move the alarm callbacks in pcf85063_rtc_ops and use RTC_FEATURE_ALARM to
signal to the core whether alarms are available instead of having a
supplementary struct rtc_class_ops without alarm callbacks.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-9-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
25cbe9c8d9 rtc: pcf2127: remove pcf2127_rtc_alrm_ops 
Move the alarm callbacks in pcf2127_rtc_ops and use RTC_FEATURE_ALARM to
signal to the core whether alarms are available instead of having a
supplementary struct rtc_class_ops without alarm callbacks.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-8-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
e53ad0841c rtc: m48t59: remove m48t02_rtc_ops 
Clear RTC_FEATURE_ALARM to signal that alarms are not available instead of
having a supplementary struct rtc_class_ops without alarm callbacks.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-7-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
b0d42defe1 rtc: mv: remove mv_rtc_alarm_ops 
Move the alarm callbacks in mv_rtc_ops and clear RTC_FEATURE_ALARM to
signal that alarms are not available instead of having a supplementary
struct rtc_class_ops.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-6-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00
Alexandre Belloni
30f5bd537f rtc: cmos: remove cmos_rtc_ops_no_alarm 
Clear RTC_FEATURE_ALARM to signal that alarms are not available instead of
having a supplementary struct rtc_class_ops with a NULL .set_alarm.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20210110231752.1418816-5-alexandre.belloni@bootlin.com
 2021-01-16 23:19:26 +01:00