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Message-ID: <20241107060254.17615-14-mario.limonciello@amd.com>
Date: Thu, 7 Nov 2024 00:02:47 -0600
From: Mario Limonciello <mario.limonciello@....com>
To: Hans de Goede <hdegoede@...hat.com>, Ilpo Järvinen
	<ilpo.jarvinen@...ux.intel.com>
CC: "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>,
	Maximilian Luz <luzmaximilian@...il.com>, Lee Chun-Yi <jlee@...e.com>, "Shyam
 Sundar S K" <Shyam-sundar.S-k@....com>, Corentin Chary
	<corentin.chary@...il.com>, "Luke D . Jones" <luke@...nes.dev>, Ike Panhc
	<ike.pan@...onical.com>, Henrique de Moraes Holschuh <hmh@....eng.br>,
	"Alexis Belmonte" <alexbelm48@...il.com>, Uwe Kleine-König
	<u.kleine-koenig@...gutronix.de>, Ai Chao <aichao@...inos.cn>, Gergo Koteles
	<soyer@....hu>, open list <linux-kernel@...r.kernel.org>, "open list:ACPI"
	<linux-acpi@...r.kernel.org>, "open list:MICROSOFT SURFACE PLATFORM PROFILE
 DRIVER" <platform-driver-x86@...r.kernel.org>, "open list:THINKPAD ACPI
 EXTRAS DRIVER" <ibm-acpi-devel@...ts.sourceforge.net>, Mark Pearson
	<mpearson-lenovo@...ebb.ca>, Matthew Schwartz <matthew.schwartz@...ux.dev>,
	Mario Limonciello <mario.limonciello@....com>
Subject: [PATCH v5 13/20] 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.

Tested-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
Tested-by: Matthew Schwartz <matthew.schwartz@...ux.dev>
Reviewed-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
 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 35e0e8f666072..510e1435d3980 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -399,6 +399,8 @@ int platform_profile_register(struct platform_profile_handler *pprof)
 	}
 	dev_set_drvdata(pprof->class_dev, pprof);
 
+	sysfs_notify(acpi_kobj, NULL, "platform_profile");
+
 	cur_profile = pprof;
 	return 0;
 
@@ -421,6 +423,8 @@ 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");
+
 	cur_profile = NULL;
 	return 0;
 }
-- 
2.43.0


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