Use SPDX-License-Identifier to be clearer on the license. Choose the v2
only as this is the default Linux license.
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The Sun4v Hypervisor Core API Specification states:
Time is described by a single unsigned 64-bit word equivalent to a time_t
for the POSIX time(2) system call. The word contains the time since the
Epoch (00:00:00 UTC, January 1, 1970), measured in seconds.
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_tm time conversion as the hypervisor handles
64bit values.
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_time_to_tm now that the range is enforced by
the core.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The PS3 has a 64bit second counter from 2000. While this exceeds the 64bit
UNIX timestamp, there is not doubt that non of them will still be working
by then.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This allows further improvement of the driver.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text.
Reviewed-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_tm time conversion as the PS3 handles 64bit
values.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Correct trivial checkpatch warnings, mostly whitespace issues and
unbalanced braces.
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_tm time conversion as the range is enforced
by the core.
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The AT91 RTT is a 32bit second counter that is saved in a 32bit global
purpose register.
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This allows further improvement of the driver.
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

ARCH_AT91 is DT only for a while, drop platform data support.
Acked-by: NNicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The SH RTC is a BCD RTC with some version having 4 digits for the year.

The range for the RTCs with only 2 digits for the year was unfortunately
shifted to handle 1999 to 2098.
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The IRQ is requested before the struct rtc is allocated and registered, but
this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.

Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
struct before requesting the IRQ.
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

There is no point in resetting the time to epoch as this means that
userspace will never get the valuable information that time is actually
invalid.
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Tested-by: NGeert Uytterhoeven <geert+renesas@glider.be>
[Anders Roxell <anders.roxell@linaro.org>: remove unused variable r]
Signed-off-by: NAnders Roxell <anders.roxell@linaro.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_tm time conversion as the range is enforced
by the core.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The MSP430 has a 32bit second counter.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This allows further improvement of the driver.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This RTC handles dates after 2106 (up to July 2554), call the 64bit
versions of rtc_tm time conversion.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Goldfish can be ARM or x86, allow building the driver for more than just
MIPS.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Sort headers alphabetically.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This RTC has a 64bit nanosecond counter.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This allows further improvement of the driver.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use .set_time instead of the deprecated .set_mmss.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Call the 64bit versions of rtc_tm time conversion as the range is enforced
by the core.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

There is no point in caching alarm_time for .read_alarm because
.read_alarm is only called at boo time and thus alarm_time is always 0.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Correct trivial whitespace issues. Also sort the headers.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

CCVR is a 32bit second counter.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

The IRQ is requested before the struct rtc is allocated and registered, but
this struct is used in the IRQ handler. This may lead to a NULL pointer
dereference.

Switch to devm_rtc_allocate_device/rtc_register_device to allocate the rtc
struct before requesting the IRQ.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Fix checkpatch error:
drivers/rtc/rtc-test.c:155: ERROR: do not use assignment in if condition
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Use SPDX-License-Identifier instead of a verbose license text.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Correct trivial whitespace and split strings issues.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

Correct trivial checkpatch warnings, mostly whitespace issues and
unbalanced braces.
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>

This makes it possible to probe the X1205 RTC from the
device tree. This is needed when adding device tree boot
support for the IXP4xx-based NSLU2 which has this RTC.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>