From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34E59C432C3 for ; Sat, 16 Nov 2019 15:58:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F28E32089D for ; Sat, 16 Nov 2019 15:57:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573919880; bh=i4QKo1c3jisTV2BspdLecAEOwACkSI6dwzcxae6X5fI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=r95Ahq0D9ievsS6PN0UTEEAarKb82YHgkEgpW9BDpGR2kboR4IeprixHl/LXGhc18 ZAGQFA4w4A/AOmXWueWX+KRCmsLfzbXQi2MOMuwm9bjm+25T+ziZuEShUOeq32jBkD Pshv5nU98S1Ho3xlm9LaGHZyUtjcliaabRn86v2k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731000AbfKPP56 (ORCPT ); Sat, 16 Nov 2019 10:57:58 -0500 Received: from mail.kernel.org ([198.145.29.99]:36108 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730145AbfKPPy1 (ORCPT ); Sat, 16 Nov 2019 10:54:27 -0500 Received: from sasha-vm.mshome.net (unknown [50.234.116.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 91FB8208E3; Sat, 16 Nov 2019 15:54:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573919666; bh=i4QKo1c3jisTV2BspdLecAEOwACkSI6dwzcxae6X5fI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ghND9pJ10iJPn3seTYiL7rttUJQVIySVfAlYxSW08UQnUsAXPrazLsNrpDXgtoco1 pKhMGDPrYk8+79R72fqTvPJxI0h7U8V0Fa+lhlZ7ZLYkSHNEO3idBu8gUBPdOQqxJf /qaYUQE2mk2owMY5Zey8pONJl+F0YrovKgTz8h2Q= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Geert Uytterhoeven , =?UTF-8?q?Niklas=20S=C3=B6derlund?= , Eduardo Valentin , Sasha Levin , linux-pm@vger.kernel.org Subject: [PATCH AUTOSEL 4.4 39/77] thermal: rcar_thermal: Prevent hardware access during system suspend Date: Sat, 16 Nov 2019 10:53:01 -0500 Message-Id: <20191116155339.11909-39-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191116155339.11909-1-sashal@kernel.org> References: <20191116155339.11909-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Geert Uytterhoeven [ Upstream commit 3a31386217628ffe2491695be2db933c25dde785 ] On r8a7791/koelsch, sometimes the following message is printed during system suspend: rcar_thermal e61f0000.thermal: thermal sensor was broken This happens if the workqueue runs while the device is already suspended. Fix this by using the freezable system workqueue instead, cfr. commit 51e20d0e3a60cf46 ("thermal: Prevent polling from happening during system suspend"). Fixes: e0a5172e9eec7f0d ("thermal: rcar: add interrupt support") Signed-off-by: Geert Uytterhoeven Reviewed-by: Niklas Söderlund Signed-off-by: Eduardo Valentin Signed-off-by: Sasha Levin --- drivers/thermal/rcar_thermal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c index 13d01edc7a043..487c5cd7516c0 100644 --- a/drivers/thermal/rcar_thermal.c +++ b/drivers/thermal/rcar_thermal.c @@ -350,8 +350,8 @@ static irqreturn_t rcar_thermal_irq(int irq, void *data) rcar_thermal_for_each_priv(priv, common) { if (rcar_thermal_had_changed(priv, status)) { rcar_thermal_irq_disable(priv); - schedule_delayed_work(&priv->work, - msecs_to_jiffies(300)); + queue_delayed_work(system_freezable_wq, &priv->work, + msecs_to_jiffies(300)); } } -- 2.20.1