linux-kernel - [PATCH 22/27] clk: x86: cgu: convert from divider_round_rate() to divider_determine

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Message-Id: <20260108-clk-divider-round-rate-v1-22-535a3ed73bf3@redhat.com>
Date: Thu, 08 Jan 2026 16:16:40 -0500
From: Brian Masney <bmasney@...hat.com>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>
Cc: linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Brian Masney <bmasney@...hat.com>
Subject: [PATCH 22/27] clk: x86: cgu: convert from divider_round_rate() to
 divider_determine_rate()

The divider_round_rate() function is now deprecated, so let's migrate
to divider_determine_rate() instead so that this deprecated API can be
removed.

Note that when the main function itself was migrated to use
determine_rate, this was mistakenly converted to:

    req->rate = divider_round_rate(...)

This is invalid in the case when an error occurs since it can set the
rate to a negative value.

Fixes: f7a6bed91a19 ("clk: x86: cgu: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@...hat.com>
---
 drivers/clk/x86/clk-cgu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/x86/clk-cgu.c b/drivers/clk/x86/clk-cgu.c
index d099667355f8d80785b0f43097ad10c274dd61ea..92ee05d75af2b262d3e0e281c79fa07b3be1574c 100644
--- a/drivers/clk/x86/clk-cgu.c
+++ b/drivers/clk/x86/clk-cgu.c
@@ -137,10 +137,8 @@ static int lgm_clk_divider_determine_rate(struct clk_hw *hw,
 {
 	struct lgm_clk_divider *divider = to_lgm_clk_divider(hw);
 
-	req->rate = divider_round_rate(hw, req->rate, &req->best_parent_rate, divider->table,
-				       divider->width, divider->flags);
-
-	return 0;
+	return divider_determine_rate(hw, req, divider->table, divider->width,
+				      divider->flags);
 }
 
 static int

-- 
2.52.0