From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB12547AF6F for ; Fri, 16 Oct 2026 10:05:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792145141; cv=none; b=kEISRwl1VlREMi1C/BHEuySw8GMvuU1TiE/aM6sN/QB5iIR9MVlU0wtnpIlOO7HcF0cVHLtjn9GdybfmZYt/fCOGNE/os/rgmNPZggG4JdM8r0RccG3XyJpPd6whvGVeYoVznuEDp3SnOQ1uH4iqlMP3i0LO2TaR9JJ1+MpO6rM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792145141; c=relaxed/simple; bh=YQO5XetIQSEANhtWhA5qbrsfyJQkeAvh8IbfMoixrtk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=b6z5mR6TAdjY2qNnQoohP8YtRopjXg5n0beLruvyNvclCVodihpkvN/EiyajihadsRKAkIDbmmHLh+el3fgrFwEl39oQJaKPBP5mtgVM/QilRe7JX2wR8TZfseWook4F+YLN+mWBVfzMS9wk7+Gqt5Yz571Xg3h1jXTOouGjPG8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=ofvm5xTo; arc=none smtp.client-ip=220.197.31.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="ofvm5xTo" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=Bp NxUCsJWScZvGQdH1JJBZmMbVWwOQFNRIHMtTZzXkE=; b=ofvm5xTo+0VhwqLXRc SU7XZueQBM90uoXAFbaapb1L0HIIi5wTWxnrDMsYhdZ15USJ1qLAXxakydPeELGR C9lo+ARie8TBC/eAiNdSdM/Beeyopdo4aWzpiiM3hlwXEEC6FWFbFMB/We5331iX UWDcRB61cDCbeQlASn4ME8VP4= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wD3fxXj9tFqdQTxAQ--.15252S3; Fri, 16 Oct 2026 18:05:25 +0800 (CST) From: Jiale Yao To: Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org Cc: Jiale Yao Subject: [PATCH 1/2] regulator: core: freeze deferred disable work during suspend Date: Fri, 16 Oct 2026 18:05:21 +0800 Message-Id: <20261016100522.2582557-2-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261016100522.2582557-1-yaojiale02@163.com> References: <20261016100522.2582557-1-yaojiale02@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wD3fxXj9tFqdQTxAQ--.15252S3 X-Coremail-Antispam: 1Uf129KBjvdXoW7Xw15XFy5Kry5Zw1xtry8AFb_yoWkWwb_W3 48X3Z7uwsxursI9w1IvFs0vryYkwn2q3Wrur48KrW2yrW7AFy5Jwnru343Ar47Jw4IyFnr XrnxKr45Ar1YgjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sR_89N7UUUUU== X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbCzgUGQGrR9uXlwgAA3C 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. Signed-off-by: Jiale Yao --- 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