linux-kernel - [PATCH 08/13] clk: imx: pfd: convert from round_rate() to determine

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Message-Id: <20250710-clk-imx-round-rate-v1-8-5726f98e6d8d@redhat.com>
Date: Thu, 10 Jul 2025 17:10:40 -0400
From: Brian Masney <bmasney@...hat.com>
To: Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Maxime Ripard <mripard@...nel.org>
Cc: linux-clk@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Brian Masney <bmasney@...hat.com>
Subject: [PATCH 08/13] clk: imx: pfd: 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@...hat.com>
---
 drivers/clk/imx/clk-pfd.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/imx/clk-pfd.c b/drivers/clk/imx/clk-pfd.c
index 5cf0149dfa15aab8b4cee47c8120753e3df45dac..31220fa7882b601f3535ad125114dba1eec95a9f 100644
--- a/drivers/clk/imx/clk-pfd.c
+++ b/drivers/clk/imx/clk-pfd.c
@@ -62,24 +62,26 @@ static unsigned long clk_pfd_recalc_rate(struct clk_hw *hw,
 	return tmp;
 }
 
-static long clk_pfd_round_rate(struct clk_hw *hw, unsigned long rate,
-			       unsigned long *prate)
+static int clk_pfd_determine_rate(struct clk_hw *hw,
+				  struct clk_rate_request *req)
 {
-	u64 tmp = *prate;
+	u64 tmp = req->best_parent_rate;
 	u8 frac;
 
-	tmp = tmp * 18 + rate / 2;
-	do_div(tmp, rate);
+	tmp = tmp * 18 + req->rate / 2;
+	do_div(tmp, req->rate);
 	frac = tmp;
 	if (frac < 12)
 		frac = 12;
 	else if (frac > 35)
 		frac = 35;
-	tmp = *prate;
+	tmp = req->best_parent_rate;
 	tmp *= 18;
 	do_div(tmp, frac);
 
-	return tmp;
+	req->rate = tmp;
+
+	return 0;
 }
 
 static int clk_pfd_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -117,7 +119,7 @@ static const struct clk_ops clk_pfd_ops = {
 	.enable		= clk_pfd_enable,
 	.disable	= clk_pfd_disable,
 	.recalc_rate	= clk_pfd_recalc_rate,
-	.round_rate	= clk_pfd_round_rate,
+	.determine_rate = clk_pfd_determine_rate,
 	.set_rate	= clk_pfd_set_rate,
 	.is_enabled     = clk_pfd_is_enabled,
 };

-- 
2.50.0