linux-kernel - Re: [PATCH v10 4/5] Watchdog: introduce ARM SBSA watchdog driver

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Message-ID: <CADyBb7u1rN9f8A+eeC4-BgLyjnhYbgyQfepRDy0OmMmMWxD6sQ@mail.gmail.com>
Date:	Fri, 5 Feb 2016 16:52:55 +0800
From:	Fu Wei <fu.wei@...aro.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Timur Tabi <timur@...eaurora.org>,
	Will Deacon <will.deacon@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Paweł Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Wim Van Sebroeck <wim@...ana.be>,
	Jon Corbet <corbet@....net>,
	Catalin Marinas <catalin.marinas@....com>,
	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-watchdog@...r.kernel.org, linux-doc@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Linaro ACPI Mailman List <linaro-acpi@...ts.linaro.org>,
	rruigrok@...eaurora.org, "Abdulhamid, Harb" <harba@...eaurora.org>,
	Christopher Covington <cov@...eaurora.org>,
	Dave Young <dyoung@...hat.com>,
	Pratyush Anand <panand@...hat.com>,
	G Gregory <graeme.gregory@...aro.org>,
	Al Stone <al.stone@...aro.org>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Jon Masters <jcm@...hat.com>, Arnd Bergmann <arnd@...db.de>,
	Leo Duran <leo.duran@....com>,
	Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v10 4/5] Watchdog: introduce ARM SBSA watchdog driver

Hi

On 5 February 2016 at 00:46, Guenter Roeck <linux@...ck-us.net> wrote:
> On 02/04/2016 08:37 AM, Timur Tabi wrote:
>>
>> 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?
>
>
> +1

yes, we can, just "0" would be fine, will do.

Thanks :-)

>
> Guenter
>



-- 
Best regards,

Fu Wei
Software Engineer
Red Hat Software (Beijing) Co.,Ltd.Shanghai Branch
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