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clk: always pass parent_rate into .round_rate

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The parent_rate will likely be used by most .round_rate implementation
no matter whether flag CLK_SET_RATE_PARENT is set or not, so let's
always pass parent_rate into .round_rate.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Shawn Guo
2012-04-12 20:50:17 +08:00
committed by Mike Turquette
parent 27d545915f
commit 81536e072b
2 changed files with 10 additions and 18 deletions
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12
drivers/clk/clk-divider.c
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@@ -67,8 +67,8 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate,
if (divider->flags & CLK_DIVIDER_ONE_BASED)
maxdiv--;
if (!best_parent_rate) {
parent_rate = __clk_get_rate(__clk_get_parent(hw->clk));
if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) {
parent_rate = *best_parent_rate;
bestdiv = DIV_ROUND_UP(parent_rate, rate);
bestdiv = bestdiv == 0 ? 1 : bestdiv;
bestdiv = bestdiv > maxdiv ? maxdiv : bestdiv;
@@ -108,13 +108,7 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate,
int div;
div = clk_divider_bestdiv(hw, rate, prate);
if (prate)
return *prate / div;
else {
unsigned long r;
r = __clk_get_rate(__clk_get_parent(hw->clk));
return r / div;
}
return *prate / div;
}
static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate)