watchdog: sch311x_wdt: Fix Polarity when starting watchdog
Some motherboards like the Advantech ARK3400 documentation use a non-inverted GPIO pin. We fix this by assuming that the BIOS will set the Polarity bit for the GPIO correctly at startup and we keep the Bit-setting intact when we start and stop the watchdog. Reported-by: NJean-François Deverge <jf.deverge@gmail.com> Signed-off-by: NDave Mueller <d.mueller@elsoft.ch> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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