diff options
Diffstat (limited to 'drivers/clk/sunxi-ng/ccu_nk.c')
| -rw-r--r-- | drivers/clk/sunxi-ng/ccu_nk.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/clk/sunxi-ng/ccu_nk.c b/drivers/clk/sunxi-ng/ccu_nk.c index aee68b00f3b2..5db748fbb5bd 100644 --- a/drivers/clk/sunxi-ng/ccu_nk.c +++ b/drivers/clk/sunxi-ng/ccu_nk.c @@ -15,8 +15,8 @@ struct _ccu_nk { unsigned long k, min_k, max_k; }; -static void ccu_nk_find_best(unsigned long parent, unsigned long rate, - struct _ccu_nk *nk) +static unsigned long ccu_nk_find_best(unsigned long parent, unsigned long rate, + struct _ccu_nk *nk) { unsigned long best_rate = 0; unsigned int best_k = 0, best_n = 0; @@ -39,6 +39,8 @@ static void ccu_nk_find_best(unsigned long parent, unsigned long rate, nk->k = best_k; nk->n = best_n; + + return best_rate; } static void ccu_nk_disable(struct clk_hw *hw) @@ -90,27 +92,26 @@ static unsigned long ccu_nk_recalc_rate(struct clk_hw *hw, return rate; } -static long ccu_nk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int ccu_nk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct ccu_nk *nk = hw_to_ccu_nk(hw); struct _ccu_nk _nk; if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) - rate *= nk->fixed_post_div; + req->rate *= nk->fixed_post_div; _nk.min_n = nk->n.min ?: 1; _nk.max_n = nk->n.max ?: 1 << nk->n.width; _nk.min_k = nk->k.min ?: 1; _nk.max_k = nk->k.max ?: 1 << nk->k.width; - ccu_nk_find_best(*parent_rate, rate, &_nk); - rate = *parent_rate * _nk.n * _nk.k; + req->rate = ccu_nk_find_best(req->best_parent_rate, req->rate, &_nk); if (nk->common.features & CCU_FEATURE_FIXED_POSTDIV) - rate = rate / nk->fixed_post_div; + req->rate = req->rate / nk->fixed_post_div; - return rate; + return 0; } static int ccu_nk_set_rate(struct clk_hw *hw, unsigned long rate, @@ -154,6 +155,7 @@ const struct clk_ops ccu_nk_ops = { .is_enabled = ccu_nk_is_enabled, .recalc_rate = ccu_nk_recalc_rate, - .round_rate = ccu_nk_round_rate, + .determine_rate = ccu_nk_determine_rate, .set_rate = ccu_nk_set_rate, }; +EXPORT_SYMBOL_NS_GPL(ccu_nk_ops, "SUNXI_CCU"); |