So this driver builds as a module.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---
v2: * Remove governor if driver registration fails
---
drivers/devfreq/tegra-devfreq.c | 37 ++++++++++++++++++++++++++++++-------
1 file changed, 30 insertions(+), 7 deletions(-)
diff --git a/drivers/devfreq/tegra-devfreq.c b/drivers/devfreq/tegra-devfreq.c
index 8e633a6..13a1a6e 100644
--- a/drivers/devfreq/tegra-devfreq.c
+++ b/drivers/devfreq/tegra-devfreq.c
@@ -606,12 +606,6 @@ static struct devfreq_governor tegra_devfreq_governor = {
.event_handler = tegra_governor_event_handler,
};
-static int __init tegra_governor_init(void)
-{
- return devfreq_add_governor(&tegra_devfreq_governor);
-}
-subsys_initcall(tegra_governor_init);
-
static int tegra_devfreq_probe(struct platform_device *pdev)
{
struct tegra_devfreq *tegra;
@@ -755,7 +749,36 @@ static struct platform_driver tegra_devfreq_driver = {
.of_match_table = tegra_devfreq_of_match,
},
};
-module_platform_driver(tegra_devfreq_driver);
+
+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_LICENSE("GPL v2");
MODULE_DESCRIPTION("Tegra devfreq driver");
--
2.1.0
--
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