linux-kernel - [PATCH 13/27] clk: nxp: lpc32xx: convert from divider_round_rate() to divider_determine

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Message-Id: <20260108-clk-divider-round-rate-v1-13-535a3ed73bf3@redhat.com>
Date: Thu, 08 Jan 2026 16:16:31 -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>, Vladimir Zapolskiy <vz@...ia.com>, 
 Piotr Wojtaszczyk <piotr.wojtaszczyk@...esys.com>, 
 linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 13/27] clk: nxp: lpc32xx: 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: 0879768df240 ("clk: nxp: lpc32xx: convert from round_rate() to determine_rate()")
Signed-off-by: Brian Masney <bmasney@...hat.com>

---
To: Vladimir Zapolskiy <vz@...ia.com>
To: Piotr Wojtaszczyk <piotr.wojtaszczyk@...esys.com>
Cc: linux-arm-kernel@...ts.infradead.org
---
 drivers/clk/nxp/clk-lpc32xx.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/nxp/clk-lpc32xx.c b/drivers/clk/nxp/clk-lpc32xx.c
index 23f980cf6a2b59ee1c93a2519fe5188d251fa12f..ae2fa5341a2e4fbe5f2d3ef9a6cf9e9d75180d59 100644
--- a/drivers/clk/nxp/clk-lpc32xx.c
+++ b/drivers/clk/nxp/clk-lpc32xx.c
@@ -975,10 +975,8 @@ static int clk_divider_determine_rate(struct clk_hw *hw,
 		return 0;
 	}
 
-	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 clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,

-- 
2.52.0