1 files changed, 27 insertions, 29 deletions

diff --git a/drivers/clk/sunxi-ng/ccu_nm.c b/drivers/clk/sunxi-ng/ccu_nm.c
index c1fd11542c45..df01ed3b37a6 100644
--- a/drivers/clk/sunxi-ng/ccu_nm.c
+++ b/drivers/clk/sunxi-ng/ccu_nm.c
@@ -27,8 +27,8 @@ static unsigned long ccu_nm_calc_rate(unsigned long parent,
 	return rate;
 }
 
-static unsigned long ccu_nm_find_best(unsigned long parent, unsigned long rate,
-				      struct _ccu_nm *nm)
+static unsigned long ccu_nm_find_best(struct ccu_common *common, unsigned long parent,
+				      unsigned long rate, struct _ccu_nm *nm)
 {
 	unsigned long best_rate = 0;
 	unsigned long best_n = 0, best_m = 0;
@@ -39,10 +39,7 @@ static unsigned long ccu_nm_find_best(unsigned long parent, unsigned long rate,
 			unsigned long tmp_rate = ccu_nm_calc_rate(parent,
 								  _n, _m);
 
-			if (tmp_rate > rate)
-				continue;
-
-			if ((rate - tmp_rate) < (rate - best_rate)) {
+			if (ccu_is_better_rate(common, rate, tmp_rate, best_rate)) {
 				best_rate = tmp_rate;
 				best_n = _n;
 				best_m = _m;
@@ -119,39 +116,39 @@ static unsigned long ccu_nm_recalc_rate(struct clk_hw *hw,
 	return rate;
 }
 
-static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate,
-			      unsigned long *parent_rate)
+static int ccu_nm_determine_rate(struct clk_hw *hw,
+				 struct clk_rate_request *req)
 {
 	struct ccu_nm *nm = hw_to_ccu_nm(hw);
 	struct _ccu_nm _nm;
 
 	if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-		rate *= nm->fixed_post_div;
+		req->rate *= nm->fixed_post_div;
 
-	if (rate < nm->min_rate) {
-		rate = nm->min_rate;
+	if (req->rate < nm->min_rate) {
+		req->rate = nm->min_rate;
 		if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-			rate /= nm->fixed_post_div;
-		return rate;
+			req->rate /= nm->fixed_post_div;
+		return 0;
 	}
 
-	if (nm->max_rate && rate > nm->max_rate) {
-		rate = nm->max_rate;
+	if (nm->max_rate && req->rate > nm->max_rate) {
+		req->rate = nm->max_rate;
 		if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-			rate /= nm->fixed_post_div;
-		return rate;
+			req->rate /= nm->fixed_post_div;
+		return 0;
 	}
 
-	if (ccu_frac_helper_has_rate(&nm->common, &nm->frac, rate)) {
+	if (ccu_frac_helper_has_rate(&nm->common, &nm->frac, req->rate)) {
 		if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-			rate /= nm->fixed_post_div;
-		return rate;
+			req->rate /= nm->fixed_post_div;
+		return 0;
 	}
 
-	if (ccu_sdm_helper_has_rate(&nm->common, &nm->sdm, rate)) {
+	if (ccu_sdm_helper_has_rate(&nm->common, &nm->sdm, req->rate)) {
 		if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-			rate /= nm->fixed_post_div;
-		return rate;
+			req->rate /= nm->fixed_post_div;
+		return 0;
 	}
 
 	_nm.min_n = nm->n.min ?: 1;
@@ -159,12 +156,13 @@ static long ccu_nm_round_rate(struct clk_hw *hw, unsigned long rate,
 	_nm.min_m = 1;
 	_nm.max_m = nm->m.max ?: 1 << nm->m.width;
 
-	rate = ccu_nm_find_best(*parent_rate, rate, &_nm);
+	req->rate = ccu_nm_find_best(&nm->common, req->best_parent_rate,
+				     req->rate, &_nm);
 
 	if (nm->common.features & CCU_FEATURE_FIXED_POSTDIV)
-		rate /= nm->fixed_post_div;
+		req->rate /= nm->fixed_post_div;
 
-	return rate;
+	return 0;
 }
 
 static int ccu_nm_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -210,7 +208,7 @@ static int ccu_nm_set_rate(struct clk_hw *hw, unsigned long rate,
 					   &_nm.m, &_nm.n);
 	} else {
 		ccu_sdm_helper_disable(&nm->common, &nm->sdm);
-		ccu_nm_find_best(parent_rate, rate, &_nm);
+		ccu_nm_find_best(&nm->common, parent_rate, rate, &_nm);
 	}
 
 	spin_lock_irqsave(nm->common.lock, flags);
@@ -236,7 +234,7 @@ const struct clk_ops ccu_nm_ops = {
 	.is_enabled	= ccu_nm_is_enabled,
 
 	.recalc_rate	= ccu_nm_recalc_rate,
-	.round_rate	= ccu_nm_round_rate,
+	.determine_rate = ccu_nm_determine_rate,
 	.set_rate	= ccu_nm_set_rate,
 };
-EXPORT_SYMBOL_NS_GPL(ccu_nm_ops, SUNXI_CCU);
+EXPORT_SYMBOL_NS_GPL(ccu_nm_ops, "SUNXI_CCU");