linux-kernel - [PATCH v1 7/8] PM / devfreq: tegra: Remove OPP entries on driver removal

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Date:   Fri, 12 Apr 2019 01:29:13 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: [PATCH v1 7/8] PM / devfreq: tegra: Remove OPP entries on driver removal

This fixes "_opp_is_duplicate" warning messages on driver's module reload.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/devfreq/tegra-devfreq.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 96f1e8e64e46..0985c02b75fe 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -691,10 +691,10 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
 	}
 
 	tegra_devfreq_profile.initial_freq = clk_get_rate(tegra->emc_clock);
-	tegra->devfreq = devm_devfreq_add_device(&pdev->dev,
-						 &tegra_devfreq_profile,
-						 "tegra_actmon",
-						 NULL);
+	tegra->devfreq = devfreq_add_device(&pdev->dev,
+					    &tegra_devfreq_profile,
+					    "tegra_actmon",
+					    NULL);
 
 	return 0;
 }
@@ -705,6 +705,9 @@ static int tegra_devfreq_remove(struct platform_device *pdev)
 	u32 val;
 	unsigned int i;
 
+	devfreq_remove_device(tegra->devfreq);
+	dev_pm_opp_remove_all_dynamic(&pdev->dev);
+
 	for (i = 0; i < ARRAY_SIZE(actmon_device_configs); i++) {
 		val = device_readl(&tegra->devices[i], ACTMON_DEV_CTRL);
 		val &= ~ACTMON_DEV_CTRL_ENB;
-- 
2.21.0