Commits
Alexandre Belloni committed ddd6d240b26
watchdog: sama5d4: fix race condition WDT_MR and WDT_CR must not updated within three slow clock periods after the last ping (write to WDT_CR or WDT_MR). Ensure enough time has elapsed before writing those registers. wdt_write() waits for 4 periods to ensure at least 3 edges are seen by the IP. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou.Yang <wenyou.yang@microchip.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>