diff options
Diffstat (limited to 'drivers/clk/sunxi')
| -rw-r--r-- | drivers/clk/sunxi/clk-factors.c | 21 | ||||
| -rw-r--r-- | drivers/clk/sunxi/clk-sun6i-ar100.c | 21 | ||||
| -rw-r--r-- | drivers/clk/sunxi/clk-sunxi.c | 20 |
3 files changed, 29 insertions, 33 deletions
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index 8c20190a3e9f..7a485870991d 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -79,11 +79,8 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate, return rate; } -static long clk_factors_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_p) +static int clk_factors_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -96,13 +93,14 @@ static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, if (!parent) continue; if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT) - parent_rate = __clk_round_rate(parent, rate); + parent_rate = __clk_round_rate(parent, req->rate); else parent_rate = __clk_get_rate(parent); - child_rate = clk_factors_round_rate(hw, rate, &parent_rate); + child_rate = clk_factors_round_rate(hw, req->rate, + &parent_rate); - if (child_rate <= rate && child_rate > best_child_rate) { + if (child_rate <= req->rate && child_rate > best_child_rate) { best_parent = parent; best = parent_rate; best_child_rate = child_rate; @@ -110,10 +108,11 @@ static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, } if (best_parent) - *best_parent_p = __clk_get_hw(best_parent); - *best_parent_rate = best; + req->best_parent_hw = __clk_get_hw(best_parent); + req->best_parent_rate = best; + req->rate = best_child_rate; - return best_child_rate; + return 0; } static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate, diff --git a/drivers/clk/sunxi/clk-sun6i-ar100.c b/drivers/clk/sunxi/clk-sun6i-ar100.c index 63cf149195ae..d70c1ea345db 100644 --- a/drivers/clk/sunxi/clk-sun6i-ar100.c +++ b/drivers/clk/sunxi/clk-sun6i-ar100.c @@ -44,17 +44,14 @@ static unsigned long ar100_recalc_rate(struct clk_hw *hw, return (parent_rate >> shift) / (div + 1); } -static long ar100_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_clk) +static int ar100_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { int nparents = __clk_get_num_parents(hw->clk); long best_rate = -EINVAL; int i; - *best_parent_clk = NULL; + req->best_parent_hw = NULL; for (i = 0; i < nparents; i++) { unsigned long parent_rate; @@ -65,7 +62,7 @@ static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, parent = clk_get_parent_by_index(hw->clk, i); parent_rate = __clk_get_rate(parent); - div = DIV_ROUND_UP(parent_rate, rate); + div = DIV_ROUND_UP(parent_rate, req->rate); /* * The AR100 clk contains 2 divisors: @@ -101,14 +98,16 @@ static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, continue; tmp_rate = (parent_rate >> shift) / div; - if (!*best_parent_clk || tmp_rate > best_rate) { - *best_parent_clk = __clk_get_hw(parent); - *best_parent_rate = parent_rate; + if (!req->best_parent_hw || tmp_rate > best_rate) { + req->best_parent_hw = __clk_get_hw(parent); + req->best_parent_rate = parent_rate; best_rate = tmp_rate; } } - return best_rate; + req->rate = best_rate; + + return 0; } static int ar100_set_parent(struct clk_hw *hw, u8 index) diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 9a82f17d2d73..d0f72a151bf1 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -118,11 +118,8 @@ static long sun6i_ahb1_clk_round(unsigned long rate, u8 *divp, u8 *pre_divp, return (parent_rate / calcm) >> calcp; } -static long sun6i_ahb1_clk_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_clk) +static int sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk *clk = hw->clk, *parent, *best_parent = NULL; int i, num_parents; @@ -135,14 +132,14 @@ static long sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, unsigned long rate, if (!parent) continue; if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT) - parent_rate = __clk_round_rate(parent, rate); + parent_rate = __clk_round_rate(parent, req->rate); else parent_rate = __clk_get_rate(parent); - child_rate = sun6i_ahb1_clk_round(rate, NULL, NULL, i, + child_rate = sun6i_ahb1_clk_round(req->rate, NULL, NULL, i, parent_rate); - if (child_rate <= rate && child_rate > best_child_rate) { + if (child_rate <= req->rate && child_rate > best_child_rate) { best_parent = parent; best = parent_rate; best_child_rate = child_rate; @@ -150,10 +147,11 @@ static long sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, unsigned long rate, } if (best_parent) - *best_parent_clk = __clk_get_hw(best_parent); - *best_parent_rate = best; + req->best_parent_hw = __clk_get_hw(best_parent); + req->best_parent_rate = best; + req->rate = best_child_rate; - return best_child_rate; + return 0; } static int sun6i_ahb1_clk_set_rate(struct clk_hw *hw, unsigned long rate, |