[PATCH 066/114] clk: xilinx: xlnx-clock-wizard: convert from round_rate() to determine_rate()

[Brian Masney via B4 Relay <devnull+bmasney.redhat.com@xxxxxxxxxx>]

From: Brian Masney <bmasney@xxxxxxxxxx>

The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.

Signed-off-by: Brian Masney <bmasney@xxxxxxxxxx>
---
 drivers/clk/xilinx/clk-xlnx-clock-wizard.c | 55 ++++++++++++++++--------------
 1 file changed, 30 insertions(+), 25 deletions(-)

diff --git a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
index 0295a13a811cf8e00fd49879eefc5bcf4fb89228..3ee14770212a9f241d49123b25cee7abca350194 100644
--- a/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
+++ b/drivers/clk/xilinx/clk-xlnx-clock-wizard.c
@@ -322,8 +322,8 @@ static int clk_wzrd_dynamic_reconfig(struct clk_hw *hw, unsigned long rate,
 	return err;
 }
 
-static long clk_wzrd_round_rate(struct clk_hw *hw, unsigned long rate,
-				unsigned long *prate)
+static int clk_wzrd_determine_rate(struct clk_hw *hw,
+				   struct clk_rate_request *req)
 {
 	u8 div;
 
@@ -331,9 +331,11 @@ static long clk_wzrd_round_rate(struct clk_hw *hw, unsigned long rate,
 	 * since we don't change parent rate we just round rate to closest
 	 * achievable
 	 */
-	div = DIV_ROUND_CLOSEST(*prate, rate);
+	div = DIV_ROUND_CLOSEST(req->best_parent_rate, req->rate);
 
-	return *prate / div;
+	req->rate = req->best_parent_rate / div;
+
+	return 0;
 }
 
 static int clk_wzrd_get_divisors_ver(struct clk_hw *hw, unsigned long rate,
@@ -642,14 +644,14 @@ static unsigned long clk_wzrd_recalc_rate_all_ver(struct clk_hw *hw,
 			divider->flags, divider->width);
 }
 
-static long clk_wzrd_round_rate_all(struct clk_hw *hw, unsigned long rate,
-				    unsigned long *prate)
+static int clk_wzrd_determine_rate_all(struct clk_hw *hw,
+				       struct clk_rate_request *req)
 {
 	struct clk_wzrd_divider *divider = to_clk_wzrd_divider(hw);
 	u32 m, d, o;
 	int err;
 
-	err = clk_wzrd_get_divisors(hw, rate, *prate);
+	err = clk_wzrd_get_divisors(hw, req->rate, req->best_parent_rate);
 	if (err)
 		return err;
 
@@ -657,19 +659,20 @@ static long clk_wzrd_round_rate_all(struct clk_hw *hw, unsigned long rate,
 	d = divider->d;
 	o = divider->o;
 
-	rate = div_u64(*prate * (m * 1000 + divider->m_frac), d * (o * 1000 + divider->o_frac));
-	return rate;
+	req->rate = div_u64(req->best_parent_rate * (m * 1000 + divider->m_frac),
+			    d * (o * 1000 + divider->o_frac));
+	return 0;
 }
 
-static long clk_wzrd_ver_round_rate_all(struct clk_hw *hw, unsigned long rate,
-					unsigned long *prate)
+static int clk_wzrd_ver_determine_rate_all(struct clk_hw *hw,
+					   struct clk_rate_request *req)
 {
 	struct clk_wzrd_divider *divider = to_clk_wzrd_divider(hw);
 	unsigned long int_freq;
 	u32 m, d, o, div, f;
 	int err;
 
-	err = clk_wzrd_get_divisors_ver(hw, rate, *prate);
+	err = clk_wzrd_get_divisors_ver(hw, req->rate, req->best_parent_rate);
 	if (err)
 		return err;
 
@@ -678,36 +681,38 @@ static long clk_wzrd_ver_round_rate_all(struct clk_hw *hw, unsigned long rate,
 	o = divider->o;
 
 	div = d * o;
-	int_freq =  divider_recalc_rate(hw, *prate * m, div, divider->table,
+	int_freq =  divider_recalc_rate(hw, req->best_parent_rate * m, div,
+					divider->table,
 					divider->flags, divider->width);
 
-	if (rate > int_freq) {
-		f = DIV_ROUND_CLOSEST_ULL(rate * WZRD_FRAC_POINTS, int_freq);
-		rate = DIV_ROUND_CLOSEST(int_freq * f, WZRD_FRAC_POINTS);
+	if (req->rate > int_freq) {
+		f = DIV_ROUND_CLOSEST_ULL(req->rate * WZRD_FRAC_POINTS,
+					  int_freq);
+		req->rate = DIV_ROUND_CLOSEST(int_freq * f, WZRD_FRAC_POINTS);
 	}
-	return rate;
+	return 0;
 }
 
 static const struct clk_ops clk_wzrd_ver_divider_ops = {
-	.round_rate = clk_wzrd_round_rate,
+	.determine_rate = clk_wzrd_determine_rate,
 	.set_rate = clk_wzrd_ver_dynamic_reconfig,
 	.recalc_rate = clk_wzrd_recalc_rate_ver,
 };
 
 static const struct clk_ops clk_wzrd_ver_div_all_ops = {
-	.round_rate = clk_wzrd_ver_round_rate_all,
+	.determine_rate = clk_wzrd_ver_determine_rate_all,
 	.set_rate = clk_wzrd_dynamic_all_ver,
 	.recalc_rate = clk_wzrd_recalc_rate_all_ver,
 };
 
 static const struct clk_ops clk_wzrd_clk_divider_ops = {
-	.round_rate = clk_wzrd_round_rate,
+	.determine_rate = clk_wzrd_determine_rate,
 	.set_rate = clk_wzrd_dynamic_reconfig,
 	.recalc_rate = clk_wzrd_recalc_rate,
 };
 
 static const struct clk_ops clk_wzrd_clk_div_all_ops = {
-	.round_rate = clk_wzrd_round_rate_all,
+	.determine_rate = clk_wzrd_determine_rate_all,
 	.set_rate = clk_wzrd_dynamic_all,
 	.recalc_rate = clk_wzrd_recalc_rate_all,
 };
@@ -769,14 +774,14 @@ static int clk_wzrd_dynamic_reconfig_f(struct clk_hw *hw, unsigned long rate,
 				WZRD_USEC_POLL, WZRD_TIMEOUT_POLL);
 }
 
-static long clk_wzrd_round_rate_f(struct clk_hw *hw, unsigned long rate,
-				  unsigned long *prate)
+static int clk_wzrd_determine_rate_f(struct clk_hw *hw,
+				     struct clk_rate_request *req)
 {
-	return rate;
+	return 0;
 }
 
 static const struct clk_ops clk_wzrd_clk_divider_ops_f = {
-	.round_rate = clk_wzrd_round_rate_f,
+	.determine_rate = clk_wzrd_determine_rate_f,
 	.set_rate = clk_wzrd_dynamic_reconfig_f,
 	.recalc_rate = clk_wzrd_recalc_ratef,
 };

-- 
2.50.1