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authorDmitry Osipenko <digetx@gmail.com>2019-05-02 02:38:10 +0300
committerMyungJoo Ham <myungjoo.ham@samsung.com>2019-08-24 20:11:12 +0900
commit5a7e10c89501ec69adc5c39b24d7d69a223bf275 (patch)
treef0c9bfbf83a48b4d2dd5e36dc42b9ba96fd7e937 /drivers/devfreq/tegra-devfreq.c
parent386789ebbdd3a204ebe16b7a6277f7a45823549d (diff)
downloadlinux-5a7e10c89501ec69adc5c39b24d7d69a223bf275.tar.bz2
PM / devfreq: tegra: Move governor registration to driver's probe
There is no need to register the ACTMON's governor separately from the driver, hence let's move the registration into the driver's probe function for consistency and to make code cleaner a tad. Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Diffstat (limited to 'drivers/devfreq/tegra-devfreq.c')
-rw-r--r--drivers/devfreq/tegra-devfreq.c43
1 files changed, 12 insertions, 31 deletions
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index bf3fe2e81bc9..d78f29ac138b 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -683,6 +683,12 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
goto remove_opps;
}
+ err = devfreq_add_governor(&tegra_devfreq_governor);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to add governor: %d\n", err);
+ goto unreg_notifier;
+ }
+
tegra_devfreq_profile.initial_freq = clk_get_rate(tegra->emc_clock);
tegra->devfreq = devfreq_add_device(&pdev->dev,
&tegra_devfreq_profile,
@@ -690,7 +696,7 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
NULL);
if (IS_ERR(tegra->devfreq)) {
err = PTR_ERR(tegra->devfreq);
- goto unreg_notifier;
+ goto remove_governor;
}
err = devm_request_threaded_irq(&pdev->dev, tegra->irq, NULL,
@@ -706,6 +712,9 @@ static int tegra_devfreq_probe(struct platform_device *pdev)
remove_devfreq:
devfreq_remove_device(tegra->devfreq);
+remove_governor:
+ devfreq_remove_governor(&tegra_devfreq_governor);
+
unreg_notifier:
clk_notifier_unregister(tegra->emc_clock, &tegra->rate_change_nb);
@@ -723,6 +732,7 @@ static int tegra_devfreq_remove(struct platform_device *pdev)
struct tegra_devfreq *tegra = platform_get_drvdata(pdev);
devfreq_remove_device(tegra->devfreq);
+ devfreq_remove_governor(&tegra_devfreq_governor);
clk_notifier_unregister(tegra->emc_clock, &tegra->rate_change_nb);
dev_pm_opp_remove_all_dynamic(&pdev->dev);
@@ -748,36 +758,7 @@ static struct platform_driver tegra_devfreq_driver = {
.of_match_table = tegra_devfreq_of_match,
},
};
-
-static int __init tegra_devfreq_init(void)
-{
- int ret = 0;
-
- ret = devfreq_add_governor(&tegra_devfreq_governor);
- if (ret) {
- pr_err("%s: failed to add governor: %d\n", __func__, ret);
- return ret;
- }
-
- ret = platform_driver_register(&tegra_devfreq_driver);
- if (ret)
- devfreq_remove_governor(&tegra_devfreq_governor);
-
- return ret;
-}
-module_init(tegra_devfreq_init)
-
-static void __exit tegra_devfreq_exit(void)
-{
- int ret = 0;
-
- platform_driver_unregister(&tegra_devfreq_driver);
-
- ret = devfreq_remove_governor(&tegra_devfreq_governor);
- if (ret)
- pr_err("%s: failed to remove governor: %d\n", __func__, ret);
-}
-module_exit(tegra_devfreq_exit)
+module_platform_driver(tegra_devfreq_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Tegra devfreq driver");