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Wysocki" To: Linux PM Cc: LKML , Linux ACPI , Linux PCI , Ulf Hansson , Mika Westerberg Subject: [PATCH v1 8/9] ACPI: PM: Set/clear power.strict_midlayer during attach/detach Date: Wed, 25 Jun 2025 21:24:27 +0200 Message-ID: <1916173.atdPhlSkOF@rjwysocki.net> In-Reply-To: <22759968.EfDdHjke4D@rjwysocki.net> References: <22759968.EfDdHjke4D@rjwysocki.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CLIENT-IP: 5.63.189.50 X-CLIENT-HOSTNAME: 5.63.189.50 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: dmFkZTFsHB4ndHl+EixzVvfcW9Mmmy1kJBTax7trknkJLaM7+K738OXHPnCLWL71aVWNGrvB6SMUqGuVyxhuQ+ooiLNs2MbM4c4D0d0tOrBg/iqNv0NqZnl4bI7AjHbqvRt2zNkln610HrDv5mcESQciqXkjUvPbGU2EDCNxbdy4W0+PztFwXuz2PoVolx+WqtpeqA/IjF5HnJOewYMwBLd3YUcwVvpscrXqL25wGO+dHcovAc/0P/JFJdFj7a2OZUqN+PhZCSQpVtIs9I8x2nQlmx9gfVUTLdqVFWNLWvDXpj2m/7jpvs2hYMUoWA1lIxHkWnadOR0nWIatMTQTpWUFdoNAnsp4krQvH27ZQg3rDTlJj3aETi5LzRYEBJyx/qw/ZRd23vJwz9J/wza1zzh5NAgsfGrrGEU5yvBImkk0/nuuedQ4UxCufzCEzWgP8wg8Hq2diqWUpw14NDJSDymQz7XKmBYUojlq+QfGjEEJ4K1o8XvbVnU/S8T9z6GkHmLEbxE9WfHJ32tBUUDKtJhhT3rWAlJKnpcgdtwA85SkI2Tq6u2txG44GBsTB/ad+HGFUuXwENwtADqabvgHnxul6UxXOclNmFnd+7+gcwZ8X8fsNk8QzDQD50zWjtYlswCS0W9FaAdT9M1vGnbyxRMjoG9QxReXkcKImqO/vXzLdtq0VA X-DCC--Metrics: v370.home.net.pl 1024; Body=6 Fuz1=6 Fuz2=6 Content-Type: text/plain; charset="utf-8" From: Rafael J. Wysocki The ACPI general PM domain does not expect its runtime PM callbacks, acpi_subsys_runtime_suspend() and acpi_subsys_runtime_resume(), to be invoked at any point during system-wide suspend and resume, so make it express that expectation by setting power.strict_midlayer for devices that it is attached to. Also make it clear that flag when it detaches from those devices. Signed-off-by: Rafael J. Wysocki --- This depends on https://lore.kernel.org/linux-acpi/4665476.LvFx2qVVIh@rjwysocki.net/ --- drivers/acpi/device_pm.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1404,6 +1404,7 @@ struct acpi_device *adev =3D ACPI_COMPANION(dev); =20 if (adev && dev->pm_domain =3D=3D &acpi_general_pm_domain) { + dev_pm_strict_midlayer(dev, false); dev_pm_domain_set(dev, NULL); acpi_remove_pm_notifier(adev); if (power_off) { @@ -1463,6 +1464,7 @@ =20 acpi_add_pm_notifier(adev, dev, acpi_pm_notify_work_func); dev_pm_domain_set(dev, &acpi_general_pm_domain); + dev_pm_strict_midlayer(dev, true); if (power_on) { acpi_dev_pm_full_power(adev); acpi_device_wakeup_disable(adev);