linux-kernel - Re: [PATCH v3 4/9] power: reset: Add AT91RM9200 reset driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20150305150956.GT3989@piout.net>
Date:	Thu, 5 Mar 2015 16:09:56 +0100
From:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:	Sebastian Reichel <sre@...nel.org>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Lee Jones <lee.jones@...aro.org>,
	Wim Van Sebroeck <wim@...ana.be>,
	Guenter Roeck <linux@...ck-us.net>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-watchdog@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v3 4/9] power: reset: Add AT91RM9200 reset driver

On 04/03/2015 at 18:17:58 +0100, Sebastian Reichel wrote :
> Hi,
> 
> On Wed, Mar 04, 2015 at 03:21:32PM +0100, Alexandre Belloni wrote:
> > AT91RM9200 uses the watchdog from the system timer to reset.
> > [...]
> > +	regmap_write(regmap_st, AT91_ST_WDMR,
> > +		     AT91_ST_RSTEN | AT91_ST_EXTEN | 1);
> > +	regmap_write(regmap_st, AT91_ST_CR, AT91_ST_WDRST);
> > +
> > +	mdelay(2000);
> 
> At pity that you have to write into two registers, otherwise you
> could have used the syscon-reboot driver.
> 

Exactly what I was thinking :)

> > [...]
> > +module_platform_driver(at91rm9200_reset_driver);
> 
> Apart from missing module metadata (MODULE_AUTHOR(),
> MODULE_LICENSE(), ...) the driver looks fine to me.
> 

I'll add those.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/