diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-04-12 14:50:17 +0200 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2012-04-25 01:37:39 +0200 |
| commit | 81536e072b54e30bbfd1a9a6b8094f7b3dd5321c (patch) | |
| tree | 6c1f0df5e626ecf7c30368033478cdaf48b1b872 /drivers/clk/clk-divider.c | |
| parent | clk: basic: improve parent_names & return errors (diff) | |
| download | linux-81536e072b54e30bbfd1a9a6b8094f7b3dd5321c.tar.xz linux-81536e072b54e30bbfd1a9a6b8094f7b3dd5321c.zip | |
clk: always pass parent_rate into .round_rate
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>
Diffstat (limited to 'drivers/clk/clk-divider.c')
| -rw-r--r-- | drivers/clk/clk-divider.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index 5fc541d017f1..03b127c0313b 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -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) |