[PATCH v9 14/22] ACPI: platform_profile: Notify change events on register and unregister

[Mario Limonciello]

As multiple platform profile handlers may come and go, send a notification
to userspace each time that a platform profile handler is registered or
unregistered.

Reviewed-by: Armin Wolf <W_Armin@xxxxxx>
Tested-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Tested-by: Matthew Schwartz <matthew.schwartz@xxxxxxxxx>
Reviewed-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
 drivers/acpi/platform_profile.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index fdff374aab128..bb0178e52ff6b 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -358,6 +358,8 @@ int platform_profile_register(struct platform_profile_handler *pprof)
 		goto cleanup_ida;
 	}
 
+	sysfs_notify(acpi_kobj, NULL, "platform_profile");
+
 	cur_profile = pprof;
 
 	err = sysfs_update_group(acpi_kobj, &platform_profile_group);
@@ -388,6 +390,8 @@ int platform_profile_remove(struct platform_profile_handler *pprof)
 	device_unregister(pprof->class_dev);
 	ida_free(&platform_profile_ida, id);
 
+	sysfs_notify(acpi_kobj, NULL, "platform_profile");
+
 	sysfs_update_group(acpi_kobj, &platform_profile_group);
 
 	return 0;
-- 
2.43.0