linux.git/drivers/rtc, branch v4.12

Merge branches 'pm-sleep' and 'powercap'

2017-05-22T18:32:05+00:00

* pm-sleep:
  PM / hibernate: Declare variables as static
  RTC: rtc-cmos: Fix wakeup from suspend-to-idle
  PM / wakeup: Fix up wakeup_source_report_event()

* powercap:
  PowerCap: Fix an error code in powercap_register_zone()

RTC: rtc-cmos: Fix wakeup from suspend-to-idle

2017-05-14T00:23:12+00:00

Commit eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from
suspend-to-idle) modified the core suspend-to-idle code to filter
out spurious SCI interrupts received while suspended, which requires
ACPI event source handlers to report wakeup events in a way that
will trigger a wakeup from suspend to idle (or abort system suspends
in progress, which is equivalent).

That needs to be done in the rtc-cmos driver too, which was overlooked
by the above commit, so do that now.

Fixes: eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
Reported-by: David E. Box 
Signed-off-by: Rafael J. Wysocki

Merge tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

2017-05-11T02:37:14+00:00

Pull RTC updates from Alexandre Belloni:
 "RTC subsystem update:
   - Add OF device ID table for i2c drivers

  New RTC driver:
   - Motorola CPCAP PMIC RTC

  RTC driver updates:
   - cmos: fix IRQ selection
   - ds1307: Add ST m41t0 support
   - ds1374: fix watchdog configuration
   - sh: Add rza series support"

* tag 'rtc-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (33 commits)
  rtc: gemini: add return value validation
  rtc: snvs: fix an incorrect check of return value
  rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
  rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks
  rtc: sh: mark PM functions as unused
  rtc: hid-sensor-time: remove some dead code
  rtc: m41t80: Add proper compatible for rv4162
  rtc: ds1307: Add m41t0 to OF device ID table
  rtc: ds1307: support m41t0 variant
  rtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irq
  rtc: cmos: Do not assume irq 8 for rtc when there are no legacy irqs
  x86: i8259: export legacy_pic symbol
  dt-bindings: rtc: document the rtc-sh bindings
  rtc: sh: add support for rza series
  rtc: cpcap: kfreeing devm allocated memory
  rtc: wm8350: Remove unused to_wm8350_from_rtc_dev
  rtc: cpcap: new rtc driver
  dt-bindings: Add vendor prefix for Motorola
  rtc: omap: mark PM methods as __maybe_unused
  rtc: omap: remove incorrect __exit markups
  ...

rtc: gemini: add return value validation

2017-05-04T22:43:52+00:00

Function devm_ioremap() will return a NULL pointer if it fails to remap
IO address, and its return value should be validated before it is used.
However, in function gemini_rtc_probe(), its return value is not
checked. This may result in bad memory access bugs on future access,
e.g. calling the function gemini_rtc_read_time().

Signed-off-by: Pan Bian 
Acked-by: Hans Ulli Kroll 
Signed-off-by: Alexandre Belloni

rtc: snvs: fix an incorrect check of return value

2017-05-04T22:43:50+00:00

Function devm_regmap_init_mmio() returns an ERR_PTR on error. However,
in function snvs_rtc_probe() its return value is checked against NULL.
This patch fixes it by checking the return value with IS_ERR().

Signed-off-by: Pan Bian 
Signed-off-by: Alexandre Belloni

rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL

2017-05-04T12:46:25+00:00

The WDIOC_SETOPTIONS case in the watchdog ioctl would alwayss falls
through to the -EINVAL case. This is wrong since thew watchdog does
actually get stopped or started correctly.

Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support")
Signed-off-by: Moritz Fischer 
Signed-off-by: Alexandre Belloni

rtc: ds1374: wdt: Fix issue with timeout scaling from secs to wdt ticks

2017-05-04T12:45:25+00:00

The issue is that the internal counter that triggers the watchdog reset
is actually running at 4096 Hz instead of 1Hz, therefore the value
given by userland (in sec) needs to be multiplied by 4096 to get the
correct behavior.

Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support")
Signed-off-by: Moritz Fischer 
Signed-off-by: Alexandre Belloni

rtc: sh: mark PM functions as unused

2017-04-22T16:01:15+00:00

The sh_rtc_set_irq_wake() function is only called from the suspend/resume handlers
that may be hidden, causing a harmless warning:

drivers/rtc/rtc-sh.c:724:13: error: 'sh_rtc_set_irq_wake' defined but not used [-Werror=unused-function]
 static void sh_rtc_set_irq_wake(struct device *dev, int enabled)

The most reliable way to avoid the warning is to remove the existing #ifdef
and mark the two functions as __maybe_unused so the compiler can silently
drop all three when there is no reference.

Fixes: dab5aec64bf5 ("rtc: sh: add support for rza series")
Signed-off-by: Arnd Bergmann 
Signed-off-by: Alexandre Belloni

rtc: hid-sensor-time: remove some dead code

2017-04-22T15:56:18+00:00

devm_rtc_device_register() doesn't ever return NULL so there is no need
to check.

Signed-off-by: Dan Carpenter 
Signed-off-by: Alexandre Belloni

rtc: m41t80: Add proper compatible for rv4162

2017-04-19T20:05:48+00:00

The correct compatible for the rv4162 (microcrystal,rv4162) was not used
upstream and so was not added by eb235c561d04e.

Signed-off-by: Alexandre Belloni