linux-kernel - Re: [PATCH v3] watchdog: s3c2410_wdt: Report when the watchdog reset the system

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Date:	Fri, 6 Dec 2013 13:28:48 -0800
From:	Guenter Roeck <linux@...ck-us.net>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Wim Van Sebroeck <wim@...ana.be>,
	Leela Krishna Amudala <l.krishna@...sung.com>,
	Olof Johansson <olof@...om.net>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Ben Dooks <ben-linux@...ff.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-watchdog@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] watchdog: s3c2410_wdt: Report when the watchdog reset
 the system

On Fri, Dec 06, 2013 at 01:08:07PM -0800, Doug Anderson wrote:
> A good watchdog driver is supposed to report when it was responsible
> for resetting the system.  Implement this for the s3c2410, at least on
> exynos5250 and exynos5420 where we already have a pointer to the PMU
> registers to read the information.
> 
> Note that exynos4 SoCs also provide the reset status, but providing
> that is left as an exercise for future changes and is not plumbed up
> in this patch series.  Also note the exynos4 SoCs don't appear to need
> any PMU config, which is why this patch separates the concepts of
> having PMU Registers vs. needing PMU Config.
> 
> Signed-off-by: Doug Anderson <dianders@...omium.org>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>
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