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ARM: tegra: clock: Round rate before dvfs

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Call the clock's round_rate op, if it exists, before setting
dvfs rate.  Ensures dvfs is set to the rate the clock will
be at after the later call to set_rate.

Change-Id: I4c8e85991238492adc3c37aed57c7269f3b41a2c
Signed-off-by: Colin Cross <ccross@android.com>
This commit is contained in:
Colin Cross
2010-12-07 18:24:55 -08:00
parent 0e3fe9b394
commit a8f05581f7
1 changed files with 12 additions and 0 deletions
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12
arch/arm/mach-tegra/clock.c
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@@ -350,6 +350,7 @@ int clk_set_rate(struct clk *c, unsigned long rate)
int ret = 0;
unsigned long flags;
unsigned long old_rate;
long new_rate;
clk_lock_save(c, flags);
@@ -363,6 +364,17 @@ int clk_set_rate(struct clk *c, unsigned long rate)
if (rate > c->max_rate)
rate = c->max_rate;
if (c->ops && c->ops->round_rate) {
new_rate = c->ops->round_rate(c, rate);
if (new_rate < 0) {
ret = new_rate;
goto out;
}
rate = new_rate;
}
if (clk_is_auto_dvfs(c) && rate > old_rate && c->refcnt > 0) {
ret = tegra_dvfs_set_rate(c, rate);
if (ret)