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Message-ID: <20241031040952.109057-15-mario.limonciello@amd.com>
Date: Wed, 30 Oct 2024 23:09:44 -0500
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 v3 14/22] 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: Matthew Schwartz <matthew.schwartz@...ux.dev>
Signed-off-by: Mario Limonciello <mario.limonciello@....com>
---
drivers/acpi/platform_profile.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 57c66d7dbf827..7bd32f1e8d834 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -182,6 +182,7 @@ int platform_profile_register(struct platform_profile_handler *pprof)
if (err)
return err;
list_add_tail(&pprof->list, &platform_profile_handler_list);
+ sysfs_notify(acpi_kobj, NULL, "platform_profile");
cur_profile = pprof;
return 0;
@@ -195,6 +196,8 @@ int platform_profile_remove(struct platform_profile_handler *pprof)
list_del(&pprof->list);
cur_profile = NULL;
+
+ sysfs_notify(acpi_kobj, NULL, "platform_profile");
if (!platform_profile_is_registered())
sysfs_remove_group(acpi_kobj, &platform_profile_group);
--
2.43.0
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