ACPI: platform_profile: Notify change events on register and unregister

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@gmx.de>
Tested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
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>
Link: https://lore.kernel.org/r/20241206031918.1537-15-mario.limonciello@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index d2c83cb258296dc2e713b056b3ebe97e60d65a0d..2a4f067c3c5c1af7db12d361f3fb756f27385548 100644 (file)
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -361,6 +361,8 @@ 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);
@@ -391,6 +393,8 @@ 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;