linux-kernel - [PATCH mvebu v2 08/10] cpufreq: armada-37xx: Fix determining base CPU frequency

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Message-Id: <20210114124032.12765-9-pali@kernel.org>
Date:   Thu, 14 Jan 2021 13:40:30 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Gregory Clement <gregory.clement@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org
Cc:     Marek Behún <kabel@...nel.org>,
        "Miquel Raynal" <miquel.raynal@...tlin.com>,
        "Tomasz Maciej Nowak" <tmn505@...il.com>,
        "Luka Perkov" <luka.perkov@...tura.hr>,
        "Andre Heider" <a.heider@...il.com>,
        "Vladimir Vid" <vladimir.vid@...tura.hr>,
        "Russell King" <rmk+kernel@...linux.org.uk>,
        Gérald Kerma <gerald@....net>,
        "Konstantin Porotchkin" <kostap@...vell.com>
Subject: [PATCH mvebu v2 08/10] cpufreq: armada-37xx: Fix determining base CPU frequency

When current CPU load is not L0 then loading armada-37xx-cpufreq.ko driver
fails with following error:

    # modprobe armada-37xx-cpufreq
    [  502.702097] Unsupported CPU frequency 250 MHz

This issue was partially fixed by commit 8db82563451f ("cpufreq:
armada-37xx: fix frequency calculation for opp"), but only for calculating
CPU frequency for opp.

Fix this also for determination of base CPU frequency.

Signed-off-by: Pali Rohár <pali@...nel.org>
Fixes: 92ce45fb875d ("cpufreq: Add DVFS support for Armada 37xx")
Cc: stable@...r.kernel.org # 8db82563451f ("cpufreq: armada-37xx: fix frequency calculation for opp")
---
 drivers/cpufreq/armada-37xx-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/armada-37xx-cpufreq.c b/drivers/cpufreq/armada-37xx-cpufreq.c
index 002a71775e08..f08281fc525c 100644
--- a/drivers/cpufreq/armada-37xx-cpufreq.c
+++ b/drivers/cpufreq/armada-37xx-cpufreq.c
@@ -458,7 +458,7 @@ static int __init armada37xx_cpufreq_driver_init(void)
 		return -EINVAL;
 	}
 
-	dvfs = armada_37xx_cpu_freq_info_get(cur_frequency);
+	dvfs = armada_37xx_cpu_freq_info_get(base_frequency);
 	if (!dvfs) {
 		clk_put(clk);
 		return -EINVAL;
-- 
2.20.1