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 for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 11 Nov 2013 13:43:55 -0600
From:	Felipe Balbi <balbi@...com>
To:	Stephen Warren <swarren@...dotorg.org>
CC:	Felipe Balbi <balbi@...com>, <mturquette@...aro.org>,
	Linux ARM Kernel Mailing List 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	<james.hogan@...tec.com>, <luca@...lho.fi>
Subject: Re: [PATCH] clk: add flags to distinguish xtal clocks

Hi,

On Mon, Nov 11, 2013 at 09:27:58AM -0700, Stephen Warren wrote:
> On 11/08/2013 11:00 AM, Felipe Balbi wrote:
> > From: Luciano Coelho <luca@...lho.fi>
> > 
> > Add a flag that indicate whether the clock is a crystal or not.
> > 
> > Additionally, parse a new device tree binding in clk-fixed-rate to set
> > this flag.
> > 
> > If clock-xtal isn't set, the clock framework will assume clock to be
> > generated by an oscillator.  There's only one user for this binding
> > right now which is Texas Instruments' WiLink devices which need to know
> > details about the clock in order to initialize the underlying WiFi HW
> > correctly.
> 
> Why on earth does it care? Surely the WiFi HW doesn't care about
> crystal-vs-non-crystal, but rather some facet of the clock signal that
> the type of source implies. Shouldn't the DT property describe that
> facet of the signal, rather than the reason why it has that facet?

well, if you can figure out what that facet is, then _do_ tell. Luca has
tried for months to get that information with no success.

-- 
balbi

Download attachment "signature.asc" of type "application/pgp-signature" (837 bytes)

Powered by blists - more mailing lists