[PATCH v2 08/19] PM / devfreq: tegra: Remove OPP entries on driver removal

From: Dmitry Osipenko
Date: Mon Apr 15 2019 - 10:55:51 EST


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

Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
---
drivers/devfreq/tegra-devfreq.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index c248c18431d9..98ba27b1e2c4 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -701,7 +701,7 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
NULL);
if (IS_ERR(tegra->devfreq)) {
err = PTR_ERR(tegra->devfreq);
- return err;
+ goto remove_opps;
}

tegra->rate_change_nb.notifier_call = tegra_actmon_rate_notify_cb;
@@ -709,10 +709,15 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
if (err) {
dev_err(&pdev->dev,
"Failed to register rate change notifier\n");
- return err;
+ goto remove_opps;
}

return 0;
+
+remove_opps:
+ dev_pm_opp_remove_all_dynamic(&pdev->dev);
+
+ return err;
}

static int tegra_devfreq_remove(struct platform_device *pdev)
@@ -722,6 +727,9 @@ static int tegra_devfreq_remove(struct platform_device *pdev)
u32 val;
unsigned int i;

+ devm_devfreq_remove_device(&pdev->dev, 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