linux-kernel - Re: [PATCH] clk: tegra: PLLE spread spectrum control

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Date:	Thu, 3 Oct 2013 18:35:19 +0300
From:	Peter De Schrijver <pdeschrijver@...dia.com>
To:	Stephen Warren <swarren@...dotorg.org>,
	Mike Turquette <mturquette@...aro.org>
CC:	Prashant Gaikwad <pgaikwad@...dia.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] clk: tegra: PLLE spread spectrum control

On Thu, Oct 03, 2013 at 05:23:55PM +0200, Stephen Warren wrote:
> On 10/03/2013 04:52 AM, Peter De Schrijver wrote:
> > On Tue, Oct 01, 2013 at 09:56:26PM +0200, Stephen Warren wrote:
> >> On 09/26/2013 09:34 AM, Peter De Schrijver wrote:
> >>> Add spread spectrum control for PLLE in Tegra114.
> >>
> >> It would be useful to have some description of the end-user-visible
> >> benefit of this change; why is it useful?
> > 
> > spread spectrum clocking is a technique to reduce EMI caused by the clock
> > signal by modulating the frequency with a low frequency signal. This should
> > reduce interference with eg. Wifi or cellular modems on the same board.
> 
> Great. The intent of my request was for that information to be included
> in the patch description.
> 

Mike,

Do you want a version 2 for this?

Cheers,

Peter.
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