From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Alan Stern <stern@rowland.harvard.edu>,
Ulf Hansson <ulf.hansson@linaro.org>,
Johan Hovold <johan@kernel.org>,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
Jon Hunter <jonathanh@nvidia.com>
Subject: [PATCH v1 02/10] PM: sleep: core: Use pm_runtime_no_support() during set_active updates
Date: Tue, 11 Feb 2025 22:03:56 +0100 [thread overview]
Message-ID: <3876702.kQq0lBPeGt@rjwysocki.net> (raw)
In-Reply-To: <2314745.iZASKD2KPV@rjwysocki.net>
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
It is pointless to set power.set_active for devices that have never had
runtime PM enabled, so don't do that.
Fixes: 7585946243d6 ("PM: sleep: core: Restrict power.set_active propagation")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/base/power/main.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1281,9 +1281,11 @@
dev->power.must_resume = true;
if (dev->power.must_resume) {
- if (dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND)) {
+ if (dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) &&
+ !pm_runtime_no_support(dev)) {
dev->power.set_active = true;
- if (dev->parent && !dev->parent->power.ignore_children)
+ if (dev->parent && !dev->parent->power.ignore_children &&
+ !pm_runtime_no_support(dev->parent))
dev->parent->power.set_active = true;
}
dpm_superior_set_must_resume(dev);
next prev parent reply other threads:[~2025-02-11 21:25 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-11 21:01 [PATCH v1 00/10] PM: Make the core and pm_runtime_force_suspend/resume() agree more Rafael J. Wysocki
2025-02-11 21:02 ` [PATCH v1 01/10] PM: runtime: Introduce pm_runtime_no_support() Rafael J. Wysocki
2025-02-11 21:03 ` Rafael J. Wysocki [this message]
2025-02-11 21:05 ` [PATCH v1 03/10] PM: runtime: Use pm_runtime_no_support() in pm_runtime_force_suspend() Rafael J. Wysocki
2025-02-11 21:07 ` [PATCH v1 04/10] PM: runtime: Drop status check from pm_runtime_force_resume() Rafael J. Wysocki
2025-02-11 21:09 ` [PATCH v1 05/10] PM: runtime: Do not enable wakeup IRQs during system resume Rafael J. Wysocki
2025-02-11 21:10 ` [PATCH v1 06/10] PM: sleep: Adjust check before setting power.must_resume Rafael J. Wysocki
2025-02-11 21:11 ` [PATCH v1 07/10] PM: sleep: Clear the power.set_active upfront Rafael J. Wysocki
2025-02-11 21:19 ` [PATCH v1 08/10] PM: sleep: Make pm_runtime_force_resume() look at power.set_active Rafael J. Wysocki
2025-02-11 21:21 ` [PATCH v1 09/10] PM: sleep: Propagate power.set_active in dependency chains Rafael J. Wysocki
2025-02-11 21:25 ` [PATCH v1 10/10] PM: runtime: Discover the lack of runtime PM support Rafael J. Wysocki
2025-02-12 11:14 ` Rafael J. Wysocki
2025-02-12 9:12 ` [PATCH v1 00/10] PM: Make the core and pm_runtime_force_suspend/resume() agree more Ulf Hansson
2025-02-12 10:59 ` Rafael J. Wysocki
2025-02-12 11:33 ` Rafael J. Wysocki
2025-02-12 11:36 ` Rafael J. Wysocki
2025-02-12 15:14 ` Ulf Hansson
2025-02-12 17:05 ` Rafael J. Wysocki
2025-02-12 19:04 ` Rafael J. Wysocki
2025-02-13 13:37 ` Ulf Hansson
2025-02-13 20:42 ` Rafael J. Wysocki
2025-02-13 13:10 ` Ulf Hansson
2025-02-13 20:17 ` Rafael J. Wysocki
2025-02-14 9:55 ` Ulf Hansson
2025-02-15 12:32 ` Rafael J. Wysocki
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