alarm_enable and alarm_flag are allowed to be NULL but will be dereferenced
later by the dev_dbg call.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/r/202305180042.DEzW1pSd-lkp@intel.com/
Link: https://lore.kernel.org/r/20240229222127.1878176-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Fix the register value comparison in the `max31335_volatile_reg`
function for the interrupt status register.

MAX31335_STATUS1 macro definition corresponds to the actual
interrupt status register.

Fixes: dedaf03b ("rtc: max31335: add driver support")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240219091616.24480-1-antoniu.miclaus@analog.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

IRQ_DOMAIN is a hidden (not user visible) symbol. Users cannot set
it directly thru "make *config", so drivers should select it instead
of depending on it if they need it.
Relying on it being set for a dependency is risky.

Consistently using "select" or "depends on" can also help reduce
Kconfig circular dependency issues.

Therefore, change the use of "depends on" for IRQ_DOMAIN to
"select" for RTC_DRV_MT6397.

Fixes: 04d3ba70 ("rtc: mt6397: add IRQ domain dependency")
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eddie Huang <eddie.huang@mediatek.com>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: Marc Zyngier <maz@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Peter Rosin <peda@axentia.se>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240213050258.6167-1-rdunlap@infradead.orgSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Convert the abracon abx80x rtc text bindings to dt-schema format.

In addition to the text description reference generic interrupts
properties and add an example.
Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240219-rtc-abracon-convert-bindings-v7-1-aca4fc3b8cec@solid-run.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

This allows both ACPI and Device Tree systems to specify the m41t80 as a
wakeup-source.
Signed-off-by: Curtis Klein <curtis.klein@hpe.com>
Link: https://lore.kernel.org/r/20240222011129.79241-1-curtis.klein@hpe.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Add compatible for SAM9X7 RTT.
Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240223172552.672094-1-varshini.rajendran@microchip.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

This helps validating DTS files. Introduced changes:
1. Reworded title
2. Dropper redundant properties descriptions
3. Added required #include-s and adjusted "reg" in example
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240123125043.27192-1-zajec5@gmail.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

This helps validating DTS files. Introduced changes:
1. Reworded title
2. Dropper redundant properties descriptions
3. Added required #include and adjusted "reg" in example
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240122124949.29577-1-zajec5@gmail.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Ensure the RTC is able to wake up the system from suspend.

Link: https://lore.kernel.org/r/20240227211833.1820800-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The ds1511 can only support alarms up to a month in the future (which we
currently limit to 28 days).

Link: https://lore.kernel.org/r/20240227231356.1840523-2-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The ds1511 leap year calculation fails in 2100.

Link: https://lore.kernel.org/r/20240227231356.1840523-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

There is no reason to not let the compiler optimise those functions as it
wants.

Link: https://lore.kernel.org/r/20240227230431.1837717-12-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

pdata is not actually about patform_data, rename it to something local to
the driver.

Link: https://lore.kernel.org/r/20240227230431.1837717-11-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

ds1511_rtc_read_alarm was useless as it is only called at boot time so
the alarm members of pdata have not yet been set. Read the actual registers
so there is a chance to get a meaningful value.

Then, drop the alarm related members of pdata as they are not used anymore.

Link: https://lore.kernel.org/r/20240227230431.1837717-10-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The RTC core will always provide an alarm with all its members set, it is
not necessary to support partial alarms.

Link: https://lore.kernel.org/r/20240227230431.1837717-9-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Instead of failing function calls, let the core know alarms are not
supported so it can fail early and avoid unnecessary calls.

Link: https://lore.kernel.org/r/20240227230431.1837717-8-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

ds1511_rtc_update_alarm is called twice but one of the call is overkill as
it only has to enable or disable the alarm instead of updating all the alarm
registers. Merge it in its main call site and introduce a new finction to
enable or disable the alarm.

Link: https://lore.kernel.org/r/20240227230431.1837717-7-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

There is no way to enable UIE in the driver, drop RTC_UF support.

Link: https://lore.kernel.org/r/20240227230431.1837717-6-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Use proper style for function definition.

Link: https://lore.kernel.org/r/20240227230431.1837717-5-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Use regular defines for register offsets instead of the enum that doesn't
bring any benefit.

Link: https://lore.kernel.org/r/20240227230431.1837717-4-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The watchdog part of the code is not reachable and should be reimplemented
properly as a watchdog driver.

Link: https://lore.kernel.org/r/20240227230431.1837717-3-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

All the callers of ds1511_rtc_set_time will use the same epoch for tm_year
which is defined as the number of years minus 1900 since POSIX.1-2001.

Link: https://lore.kernel.org/r/20240227230431.1837717-2-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

The RTC core will always pass a valid rtc_tm, it is unnecessary to check
the validity of its members, especially with an open coded version of
rtc_valid_tm().

Link: https://lore.kernel.org/r/20240227230431.1837717-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Pull more bcachefs updates from Kent Overstreet:
 "Some fixes, Some refactoring, some minor features:

   - Assorted prep work for disk space accounting rewrite

   - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
     makes our trigger context more explicit

   - A few fixes to avoid excessive transaction restarts on
     multithreaded workloads: fstests (in addition to ktest tests) are
     now checking slowpath counters, and that's shaking out a few bugs

   - Assorted tracepoint improvements

   - Starting to break up bcachefs_format.h and move on disk types so
     they're with the code they belong to; this will make room to start
     documenting the on disk format better.

   - A few minor fixes"

* tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits)
  bcachefs: Improve inode_to_text()
  bcachefs: logged_ops_format.h
  bcachefs: reflink_format.h
  bcachefs; extents_format.h
  bcachefs: ec_format.h
  bcachefs: subvolume_format.h
  bcachefs: snapshot_format.h
  bcachefs: alloc_background_format.h
  bcachefs: xattr_format.h
  bcachefs: dirent_format.h
  bcachefs: inode_format.h
  bcachefs; quota_format.h
  bcachefs: sb-counters_format.h
  bcachefs: counters.c -> sb-counters.c
  bcachefs: comment bch_subvolume
  bcachefs: bch_snapshot::btime
  bcachefs: add missing __GFP_NOWARN
  bcachefs: opts->compression can now also be applied in the background
  bcachefs: Prep work for variable size btree node buffers
  bcachefs: grab s_umount only if snapshotting
  ...

Pull timer updates from Thomas Gleixner:
 "Updates for time and clocksources:

   - A fix for the idle and iowait time accounting vs CPU hotplug.

     The time is reset on CPU hotplug which makes the accumulated
     systemwide time jump backwards.

   - Assorted fixes and improvements for clocksource/event drivers"

* tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
  clocksource/drivers/ep93xx: Fix error handling during probe
  clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings
  clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings
  clocksource/timer-riscv: Add riscv_clock_shutdown callback
  dt-bindings: timer: Add StarFive JH8100 clint
  dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs

Pull powerpc fixes from Aneesh Kumar:

 - Increase default stack size to 32KB for Book3S

Thanks to Michael Ellerman.

* tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Increase default stack size to 32KB

Add line breaks - inode_to_text() is now much easier to read.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

bcachefs_format.h has gotten too big; let's do some organizing.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>