Will Deacon wrote:
>> +static int sbsa_gwdt_keepalive(struct watchdog_device *wdd)
>> >+{
>> >+	struct sbsa_gwdt *gwdt = to_sbsa_gwdt(wdd);
>> >+
>> >+	/*
>> >+	* Writing WRR for an explicit watchdog refresh.
>> >+	* You can write anyting(like 0xc0ffee).
>> >+	*/
>> >+	writel(0xc0ffee, gwdt->refresh_base + SBSA_GWDT_WRR);
>> >+
>> >+	return 0;
>> >+}
> You might get in trouble for that. 0xd09f00d is probably less poisonous.
>
> http://www.petpoisonhelpline.com/poison/caffeine/

Any reason why we can't just keep it simple and write 0?