watchdog: Add Renesas RZ/N1 Watchdog driver

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This is a driver for the standard WDT on the RZ/N1 devices. This WDT has
very limited timeout capabilities. However, it can reset the device.
To do so, the corresponding bits in the SysCtrl RSTEN register need to
be enabled. This is not done by this driver.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20220427135531.708279-3-jjhiblot@traphandler.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

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Phil Edworthy 2022-04-27 15:55:31 +02:00 • committed by Wim Van Sebroeck

parent 9dc731bbb4

commit d65112f584

3 changed files with 212 additions and 0 deletions

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8

drivers/watchdog/Kconfig

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1

drivers/watchdog/Makefile

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203

drivers/watchdog/rzn1_wdt.c

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