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] [thread-next>] [day] [month] [year] [list]
Message-ID: <20090731214401.GC6335@sirena.org.uk>
Date:	Fri, 31 Jul 2009 22:44:01 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Roger Quadros <quadros.roger@...il.com>
Cc:	pHilipp Zabel <philipp.zabel@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] regulator: Add GPIO enable control to fixed voltage
 regulator driver

On Fri, Jul 31, 2009 at 11:32:32PM +0300, Roger Quadros wrote:

> Not having gpio_get_direction() in gpiolib is a limitation I think.
> Can we just do the following for now ? (i.e. disable regulator by default)
> Will there be any glitch? If yes, then how?

If you're going to do this then like I say you should make the default
state controllable by platform data.  If we unconditionally disable the
regulator then if, for example, the regulator is controlling the display
backlight and it's on when Linux get controls then the user will see the
backlight blink off then on during startup.
--
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ