This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Cc: Manish Badarkhe <badarkhe.manish@xxxxxxxxx>
Cc: Abhilash Kesavan <a.kesavan@xxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-samsung-soc@xxxxxxxxxxxxxxx
---
drivers/devfreq/exynos/exynos5_bus.c | 23 ++++++++---------------
1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index ab54a69..1f622f8 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -165,11 +165,6 @@ static int exynos5_int_get_dev_status(struct device *dev,
}
static void exynos5_int_exit(struct device *dev)
{
- struct platform_device *pdev = container_of(dev, struct platform_device,
- dev);
- struct busfreq_data_int *data = platform_get_drvdata(pdev);
-
- devfreq_unregister_opp_notifier(dev, data->devfreq);
}
static struct devfreq_dev_profile exynos5_devfreq_int_profile = {
@@ -343,30 +338,29 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
busfreq_mon_reset(ppmu_data);
- data->devfreq = devfreq_add_device(dev, &exynos5_devfreq_int_profile,
+ data->devfreq = devm_devfreq_add_device(dev, &exynos5_devfreq_int_profile,
"simple_ondemand", NULL);
-
if (IS_ERR(data->devfreq)) {
err = PTR_ERR(data->devfreq);
- goto err_devfreq_add;
+ return err;
}
- devfreq_register_opp_notifier(dev, data->devfreq);
+ err = devm_devfreq_register_opp_notifier(dev, data->devfreq);
+ if (err < 0) {
+ dev_err(dev, "Failed to register opp notifier\n");
+ return err;
+ }
err = register_pm_notifier(&data->pm_notifier);
if (err) {
dev_err(dev, "Failed to setup pm notifier\n");
- goto err_devfreq_add;
+ return err;
}
/* TODO: Add a new QOS class for int/mif bus */
pm_qos_add_request(&data->int_req, PM_QOS_NETWORK_THROUGHPUT, -1);
return 0;
-
-err_devfreq_add:
- devfreq_remove_device(data->devfreq);
- return err;
}
static int exynos5_busfreq_int_remove(struct platform_device *pdev)
@@ -375,7 +369,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev)
pm_qos_remove_request(&data->int_req);
unregister_pm_notifier(&data->pm_notifier);
- devfreq_remove_device(data->devfreq);
return 0;
}
--
1.8.0
--
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