RTC for 5.11

Subsystem:
 - Remove nvram ABI. There was no complaints about the deprecation for the last
   3 years.
 - Improve RTC device allocation and registration
 - Now available for ARCH=um

Drivers:
 - at91rm9200: correction and sam9x60 support
 - ds1307: improve ACPI support
 - mxc: now DT only
 - pcf2127: watchdog support now needs the reset-source property
 - pcf8523: set range
 - rx6110: i2c support
rtc: pcf2127: only use watchdog when explicitly available

Most boards using the pcf2127 chip (in my bubble) don't make use of the
watchdog functionality and the respective output is not connected. The
effect on such a board is that there is a watchdog device provided that
doesn't work.

So only register the watchdog if the device tree has a "reset-source"
property.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[RV: s/has-watchdog/reset-source/]
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201218101054.25416-3-rasmus.villemoes@prevas.dk
1 file changed