From: Brian Masney <bmasney@redhat.com>
Date: Wed, 3 Sep 2025 15:15:03 +0000 (-0400)
Subject: clk: tegra: divider: convert from round_rate() to determine_rate()
X-Git-Tag: v6.18-rc1~50^2^2~2^2~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3891c3c70012d634963b0203152aef5eeb079d47;p=thirdparty%2Fkernel%2Flinux.git

clk: tegra: divider: convert from round_rate() to determine_rate()

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@redhat.com>
---

diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c
index 38daf483ddf17..37439fcb3ac0d 100644
--- a/drivers/clk/tegra/clk-divider.c
+++ b/drivers/clk/tegra/clk-divider.c
@@ -58,23 +58,31 @@ static unsigned long clk_frac_div_recalc_rate(struct clk_hw *hw,
 	return rate;
 }
 
-static long clk_frac_div_round_rate(struct clk_hw *hw, unsigned long rate,
-				   unsigned long *prate)
+static int clk_frac_div_determine_rate(struct clk_hw *hw,
+				       struct clk_rate_request *req)
 {
 	struct tegra_clk_frac_div *divider = to_clk_frac_div(hw);
 	int div, mul;
-	unsigned long output_rate = *prate;
+	unsigned long output_rate = req->best_parent_rate;
 
-	if (!rate)
-		return output_rate;
+	if (!req->rate) {
+		req->rate = output_rate;
 
-	div = get_div(divider, rate, output_rate);
-	if (div < 0)
-		return *prate;
+		return 0;
+	}
+
+	div = get_div(divider, req->rate, output_rate);
+	if (div < 0) {
+		req->rate = req->best_parent_rate;
+
+		return 0;
+	}
 
 	mul = get_mul(divider);
 
-	return DIV_ROUND_UP(output_rate * mul, div + mul);
+	req->rate = DIV_ROUND_UP(output_rate * mul, div + mul);
+
+	return 0;
 }
 
 static int clk_frac_div_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -127,7 +135,7 @@ static void clk_divider_restore_context(struct clk_hw *hw)
 const struct clk_ops tegra_clk_frac_div_ops = {
 	.recalc_rate = clk_frac_div_recalc_rate,
 	.set_rate = clk_frac_div_set_rate,
-	.round_rate = clk_frac_div_round_rate,
+	.determine_rate = clk_frac_div_determine_rate,
 	.restore_context = clk_divider_restore_context,
 };