From: Paul Walmsley <paul@pwsan.com>
Date: Wed, 12 Nov 2008 18:51:01 +0000 (-0700)
Subject: OMAP3 clock: optimize DPLL rate rounding algorithm
X-Git-Tag: v2.6.28-davinci1-diff-base~117
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f6d82bb2f80fa20a841ac3e95a6f44a5a156188;p=pandora-kernel.git

OMAP3 clock: optimize DPLL rate rounding algorithm

The previous DPLL rate rounding algorithm counted the divider (N) down
from the maximum to 1.  Since we currently use a broad DPLL rate
tolerance, and lower N values are more power-efficient, we can often
bypass several iterations through the loop by counting N upwards from
1.

Peter de Schrijver <peter.de-schrijver@nokia.com> put up with several
test cycles of this patch - thanks Peter.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Peter de Schrijver <peter.de-schrijver@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

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