From: "jiale yao" <19888972804@163.com>
To: "Liam Girdwood" <lgirdwood@gmail.com>,
"Mark Brown" <broonie@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re:[PATCH 1/2] regulator: core: freeze deferred disable work during suspend
Date: Sat, 17 Oct 2026 15:21:56 +0800 (CST) [thread overview]
Message-ID: <242bbb5b.17ba.1a148bd21d3.Coremail.19888972804@163.com> (raw)
In-Reply-To: <20261016100522.2582557-2-yaojiale02@163.com>
At 2026-10-16 18:05:21, "Jiale Yao" <yaojiale02@163.com> wrote:
>regulator_disable_deferred() schedules hardware access after a
>caller-provided delay. The power-efficient system workqueue remains
>active during system suspend, so deferred regulator operations can reach
>a bus after its controller has been suspended.
>
>Use the freezable power-efficient workqueue to preserve the existing
>power policy while deferring regulator access until devices have resumed.
>
Fixes: da07ecd93b19 ("regulator: Implement deferred disable support")
>Signed-off-by: Jiale Yao <yaojiale02@163.com>
>---
> drivers/regulator/core.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
>index 6a4008f387b5..317f02696e47 100644
>--- a/drivers/regulator/core.c
>+++ b/drivers/regulator/core.c
>@@ -3465,7 +3465,8 @@ int regulator_disable_deferred(struct regulator *regulator, int ms)
>
> regulator_lock(rdev);
> regulator->deferred_disables++;
>- mod_delayed_work(system_power_efficient_wq, &rdev->disable_work,
>+ mod_delayed_work(system_freezable_power_efficient_wq,
>+ &rdev->disable_work,
> msecs_to_jiffies(ms));
> regulator_unlock(rdev);
>
>--
>2.34.1
next prev parent reply other threads:[~2026-10-17 7:22 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-16 10:05 [PATCH 0/2] regulator: freeze delayed hardware access " Jiale Yao
2026-10-16 10:05 ` [PATCH 1/2] regulator: core: freeze deferred disable work " Jiale Yao
2026-10-17 7:21 ` jiale yao [this message]
2026-10-16 10:05 ` [PATCH 2/2] regulator: irq: freeze deferred hardware access " Jiale Yao
2026-10-17 7:23 ` jiale yao
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