linux-kernel - [PATCH 6/6] sound: soc: stm: stm32_sai_sub: convert from round_rate() to determine

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Message-Id: <20250710-sound-clk-round-rate-v1-6-4a9c3bb6ff3a@redhat.com>
Date: Thu, 10 Jul 2025 11:51:12 -0400
From: Brian Masney <bmasney@...hat.com>
To: Support Opensource <support.opensource@...semi.com>, 
 Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Oder Chiou <oder_chiou@...ltek.com>, Srinivas Kandagatla <srini@...nel.org>, 
 Olivier Moysan <olivier.moysan@...s.st.com>, 
 Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Maxime Ripard <mripard@...nel.org>, Stephen Boyd <sboyd@...nel.org>
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org, 
 Brian Masney <bmasney@...hat.com>
Subject: [PATCH 6/6] sound: soc: stm: stm32_sai_sub: 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>
---
 sound/soc/stm/stm32_sai_sub.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index bf5299ba11c3c95ad89dfb00612ade7ed42b9d0d..463a2b7d023b9cae802f88041c23a9bcc3219a6a 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -489,20 +489,22 @@ static int stm32_sai_set_parent_rate(struct stm32_sai_sub_data *sai,
 	return -EINVAL;
 }
 
-static long stm32_sai_mclk_round_rate(struct clk_hw *hw, unsigned long rate,
-				      unsigned long *prate)
+static int stm32_sai_mclk_determine_rate(struct clk_hw *hw,
+					 struct clk_rate_request *req)
 {
 	struct stm32_sai_mclk_data *mclk = to_mclk_data(hw);
 	struct stm32_sai_sub_data *sai = mclk->sai_data;
 	int div;
 
-	div = stm32_sai_get_clk_div(sai, *prate, rate);
+	div = stm32_sai_get_clk_div(sai, req->best_parent_rate, req->rate);
 	if (div <= 0)
 		return -EINVAL;
 
-	mclk->freq = *prate / div;
+	mclk->freq = req->best_parent_rate / div;
 
-	return mclk->freq;
+	req->rate = mclk->freq;
+
+	return 0;
 }
 
 static unsigned long stm32_sai_mclk_recalc_rate(struct clk_hw *hw,
@@ -558,7 +560,7 @@ static const struct clk_ops mclk_ops = {
 	.enable = stm32_sai_mclk_enable,
 	.disable = stm32_sai_mclk_disable,
 	.recalc_rate = stm32_sai_mclk_recalc_rate,
-	.round_rate = stm32_sai_mclk_round_rate,
+	.determine_rate = stm32_sai_mclk_determine_rate,
 	.set_rate = stm32_sai_mclk_set_rate,
 };
 

-- 
2.50.0