diff options
Diffstat (limited to 'drivers/clk/at91/clk-programmable.c')
| -rw-r--r-- | drivers/clk/at91/clk-programmable.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 8c86c0f7847a..43dacad5c96d 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -54,12 +54,8 @@ static unsigned long clk_programmable_recalc_rate(struct clk_hw *hw, return parent_rate >> pres; } -static long clk_programmable_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_hw) +static int clk_programmable_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk *parent = NULL; long best_rate = -EINVAL; @@ -76,24 +72,29 @@ static long clk_programmable_determine_rate(struct clk_hw *hw, parent_rate = __clk_get_rate(parent); for (shift = 0; shift < PROG_PRES_MASK; shift++) { tmp_rate = parent_rate >> shift; - if (tmp_rate <= rate) + if (tmp_rate <= req->rate) break; } - if (tmp_rate > rate) + if (tmp_rate > req->rate) continue; - if (best_rate < 0 || (rate - tmp_rate) < (rate - best_rate)) { + if (best_rate < 0 || + (req->rate - tmp_rate) < (req->rate - best_rate)) { best_rate = tmp_rate; - *best_parent_rate = parent_rate; - *best_parent_hw = __clk_get_hw(parent); + req->best_parent_rate = parent_rate; + req->best_parent_hw = __clk_get_hw(parent); } if (!best_rate) break; } - return best_rate; + if (best_rate < 0) + return best_rate; + + req->rate = best_rate; + return 0; } static int clk_programmable_set_parent(struct clk_hw *hw, u8 index) |