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| author | Mike Turquette <mturquette@linaro.org> | 2012-05-03 03:23:43 +0400 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2012-05-09 01:11:53 +0400 |
| commit | 63f5c3b2b18dcaca0fc8983b52a3f5d4d70a0590 (patch) | |
| tree | 966cda40bacfc4be9dfc7c3b13427d7661665c2e /drivers/clk/Kconfig | |
| parent | 7704addb60e274d4e98c69a02f7ebe3f77c6c3a4 (diff) | |
| download | linux-63f5c3b2b18dcaca0fc8983b52a3f5d4d70a0590.tar.xz | |
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>
Diffstat (limited to 'drivers/clk/Kconfig')
0 files changed, 0 insertions, 0 deletions