From: Peter De Schrijver <pdeschrijver@nvidia.com>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: Mike Turquette <mturquette@linaro.org>,
Prashant Gaikwad <pgaikwad@nvidia.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] clk: tegra: PLLE spread spectrum control
Date: Thu, 3 Oct 2013 13:52:28 +0300 [thread overview]
Message-ID: <20131003105228.GK3973@tbergstrom-lnx.Nvidia.com> (raw)
In-Reply-To: <524B28EA.40702@wwwdotorg.org>
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.
Cheers,
Peter.
next prev parent reply other threads:[~2013-10-03 10:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-26 15:34 Peter De Schrijver
2013-10-01 19:56 ` Stephen Warren
2013-10-03 10:52 ` Peter De Schrijver [this message]
2013-10-03 15:23 ` Stephen Warren
2013-10-03 15:35 ` Peter De Schrijver
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