From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Linux ACPI <linux-acpi@vger.kernel.org>,
Linux PCI <linux-pci@vger.kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: [PATCH v1 9/9] PCI: PM: Set power.strict_midlayer in pci_pm_init()
Date: Wed, 25 Jun 2025 21:25:21 +0200 [thread overview]
Message-ID: <116746583.nniJfEyVGO@rjwysocki.net> (raw)
In-Reply-To: <22759968.EfDdHjke4D@rjwysocki.net>
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The PCI bus type does not expect its runtime PM callbacks,
pci_pm_runtime_suspend() and pci_pm_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 all PCI devices.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/pci/pci.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3208,6 +3208,8 @@
u16 status;
u16 pmc;
+ dev_pm_strict_midlayer(&dev->dev, true);
+
device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
next prev parent reply other threads:[~2025-06-25 19:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-25 19:14 [PATCH v1 0/9] PM: Reconcile different driver options for runtime PM integration with system sleep Rafael J. Wysocki
2025-06-25 19:16 ` [PATCH v1 1/9] PM: Use true/false as power.needs_force_resume values Rafael J. Wysocki
2025-06-26 10:10 ` Ulf Hansson
2025-06-25 19:17 ` [PATCH v1 0/9] PM: Check power.needs_force_resume in pm_runtime_force_suspend() Rafael J. Wysocki
2025-06-25 19:30 ` Rafael J. Wysocki
2025-06-26 10:10 ` Ulf Hansson
2025-06-26 10:15 ` Rafael J. Wysocki
2025-06-25 19:18 ` [PATCH v1 3/9] PM: Make pm_runtime_force_resume() work with DPM_FLAG_SMART_SUSPEND Rafael J. Wysocki
2025-06-26 10:26 ` Ulf Hansson
2025-06-25 19:19 ` [PATCH v1 4/9] PM: Move pm_runtime_force_suspend/resume() under CONFIG_PM_SLEEP Rafael J. Wysocki
2025-06-26 9:38 ` Ulf Hansson
2025-06-26 9:41 ` Rafael J. Wysocki
2025-06-26 10:04 ` Ulf Hansson
2025-06-26 10:13 ` Rafael J. Wysocki
2025-06-26 10:20 ` Ulf Hansson
2025-06-25 19:20 ` [PATCH v1 5/9] PM: Move needs_force_resume " Rafael J. Wysocki
2025-06-25 19:24 ` [PATCH v1 7/9] PM: sleep: Add strict_midlayer flag to struct dev_pm_info Rafael J. Wysocki
2025-06-25 19:24 ` [PATCH v1 8/9] ACPI: PM: Set/clear power.strict_midlayer during attach/detach Rafael J. Wysocki
2025-06-25 19:25 ` Rafael J. Wysocki [this message]
2025-06-26 10:30 ` [PATCH v1 0/9] PM: Reconcile different driver options for runtime PM integration with system sleep Ulf Hansson
2025-06-26 10:34 ` Rafael J. Wysocki
2025-06-26 10:41 ` Ulf Hansson
2025-06-26 10:59 ` Rafael J. Wysocki
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