[PATCH v1 7/7] dtpm/soc/rk3399: Add the ability to unload the module

[Daniel Lezcano <daniel.lezcano@linaro.org>]

The dtpm hierarchy can now be removed with the
dtpm_destroy_hierarchy() function. Add the module_exit() callback so
the module can be unloaded by removing the previously created
hierarchy.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/soc/rockchip/dtpm.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/soc/rockchip/dtpm.c b/drivers/soc/rockchip/dtpm.c
index ebebb748488b..5a23784b5221 100644
--- a/drivers/soc/rockchip/dtpm.c
+++ b/drivers/soc/rockchip/dtpm.c
@@ -52,6 +52,12 @@ static int __init rockchip_dtpm_init(void)
 }
 module_init(rockchip_dtpm_init);
 
+static void __exit rockchip_dtpm_exit(void)
+{
+	return dtpm_destroy_hierarchy();
+}
+module_exit(rockchip_dtpm_exit);
+
 MODULE_SOFTDEP("pre: panfrost cpufreq-dt");
 MODULE_DESCRIPTION("Rockchip DTPM driver");
 MODULE_LICENSE("GPL");
-- 
2.25.1