diff mbox series

[v4,13/20] ACPI: platform_profile: Notify change events on register and unregister

Message ID 20241105153316.378-14-mario.limonciello@amd.com
State New
Headers show
Series Add support for binding ACPI platform profile to multiple drivers | expand

Commit Message

Mario Limonciello Nov. 5, 2024, 3:33 p.m. UTC 
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.

Tested-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/acpi/platform_profile.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 79083d0bb22e3..c9917daf683cb 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -404,6 +404,7 @@  int platform_profile_register(struct platform_profile_handler *pprof)
 	if (IS_ERR(pprof->class_dev))
 		return PTR_ERR(pprof->class_dev);
 	dev_set_drvdata(pprof->class_dev, pprof);
+	sysfs_notify(acpi_kobj, NULL, "platform_profile");
 
 	cur_profile = pprof;
 	return 0;
@@ -419,7 +420,9 @@  int platform_profile_remove(struct platform_profile_handler *pprof)
 {
 	guard(mutex)(&profile_lock);
 
-	sysfs_remove_group(acpi_kobj, &platform_profile_group);
+	cur_profile = NULL;
+
+	sysfs_notify(acpi_kobj, NULL, "platform_profile");
 
 	device_destroy(&platform_profile_class, MKDEV(0, pprof->minor));