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From:   Benedikt Spranger <b.spranger@linutronix.de>
To:     linux-kernel@vger.kernel.org
Cc:     linux-clk@vger.kernel.org, Maxime Ripard <mripard@kernel.org>,
        Stephen Boyd <sboyd@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Dinh Nguyen <dinguyen@kernel.org>
Subject: [PATCH 1/1] clk: socfpga: gate: Fix of by factor 2 for serial console
Date:   Thu,  5 Oct 2023 11:59:27 +0200
Message-ID: <20231005095927.12398-2-b.spranger@linutronix.de>
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Commit 9607beb917df ("clk: socfpga: gate: Add a determine_rate hook")
introduce a specific determine_rate hook. As a result the calculated
clock for the serial IP is off by factor 2 after that i.e. if the system
configures a baudrate of 115200 it is set physicaly to 57600.

Change the determine_rate hook to the reparent variant
__clk_mux_determine_rate() to fix the issue.

Cc: stable@vger.kernel.org
Fixes: 9607beb917df ("clk: socfpga: gate: Add a determine_rate hook")
Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
---
 drivers/clk/socfpga/clk-gate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index 8dd601bd8538..47500976f987 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -110,7 +110,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk,
 
 static struct clk_ops gateclk_ops = {
 	.recalc_rate = socfpga_clk_recalc_rate,
-	.determine_rate = clk_hw_determine_rate_no_reparent,
+	.determine_rate = __clk_mux_determine_rate,
 	.get_parent = socfpga_clk_get_parent,
 	.set_parent = socfpga_clk_set_parent,
 };
-- 
2.42.0