From: Mike Turquette <mturquette@linaro.org>
Date: Wed, 2 May 2012 23:23:43 +0000 (-0700)
Subject: clk: prevent spurious parent rate propagation
X-Git-Tag: v3.5-rc1~71^2~6^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63f5c3b2b18dcaca0fc8983b52a3f5d4d70a0590;p=pandora-kernel.git

clk: prevent spurious parent rate propagation

Patch 'clk: always pass parent_rate into .round_rate' made a subtle
change to the semantics of .round_rate.  It is now expected for the
parent's rate to always be passed in, simplifying the implemenation of
various .round_rate callback definitions.

However the patch also introduced a bug in clk_calc_new_rates whereby a
clock without the CLK_SET_RATE_PARENT flag set could still propagate a
rate change up to a parent clock if the the .round_rate callback
modified the &best_parent_rate value in any way.

This patch fixes the issue at the framework level (in
clk_calc_new_rates) by specifically handling the case where the
CLK_SET_RATE_PARENT flag is not set.

Signed-off-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
---

Reading git-diff-tree failed