From patchwork Mon Jun 29 11:16:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Pietrasiewicz X-Patchwork-Id: 11630725 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BE2EE138C for ; Mon, 29 Jun 2020 11:19:30 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9810823A51 for ; Mon, 29 Jun 2020 11:19:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="D+kK1324" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9810823A51 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:References:In-Reply-To:Message-Id:Date:Subject:To: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ti7kH4n4oEtcTBhX2JhqYbFDlGuQPynEw0gttvRGULg=; b=D+kK1324XjN982x6o0G618v6qc raG4+VeMdq7L1paJjTJ7nl8qDZFBEjStYsaq8pDkN3Fml6/YjOZsLPL5QVAxdlTLfT7b9l71cxj3U pKGw+/9yqnZiM2Svw8IyfK6fzNLX7wOkcAljf0QBXatf6bfTMa5QgxDFoSwtdx2OO+40zQ4BQdb+n K4mz6Tm8Uxu5Nt1fK4XT0HQ9QofM/F9YI/8eiLCxDVLW4C+srGIth7c0O/rAzIw/dWOvPDyx3EALi hQYDjqOuU7AbUqvFgaaRHY+Og2iMv+gVwNDog73fL7NiiBvgz7tKi/Fh7Wd056Z752P4Cd5gSxxvb VFJ/SI3A==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jprnP-0004wD-MA; Mon, 29 Jun 2020 11:17:56 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jprmD-0004T7-CX; Mon, 29 Jun 2020 11:16:45 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: andrzej.p) with ESMTPSA id E6EC627D8DE From: Andrzej Pietrasiewicz To: linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: [PATCH v6 09/11] thermal: core: Stop polling DISABLED thermal devices Date: Mon, 29 Jun 2020 13:16:13 +0200 Message-Id: <20200629111615.18131-10-andrzej.p@collabora.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200629111615.18131-1-andrzej.p@collabora.com> References: <20200629111615.18131-1-andrzej.p@collabora.com> X-Spam-Note: CRM114 invocation failed X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [46.235.227.227 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Emmanuel Grumbach , Heiko Stuebner , "Rafael J . Wysocki" , Vishal Kulkarni , Luca Coelho , Miquel Raynal , kernel@collabora.com, Fabio Estevam , Amit Kucheria , Chunyan Zhang , Daniel Lezcano , Allison Randal , NXP Linux Team , Darren Hart , Zhang Rui , Gayatri Kammela , Len Brown , Johannes Berg , Intel Linux Wireless , Sascha Hauer , Ido Schimmel , Baolin Wang , Jiri Pirko , Orson Zhai , Thomas Gleixner , Kalle Valo , Support Opensource , Enrico Weigelt , Peter Kaestle , Sebastian Reichel , Andrzej Pietrasiewicz , Bartlomiej Zolnierkiewicz , Pengutronix Kernel Team , =?utf-8?q?Niklas_S=C3=B6de?= =?utf-8?q?rlund?= , Shawn Guo , "David S . Miller" , Andy Shevchenko MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Polling DISABLED devices is not desired, as all such "disabled" devices are meant to be handled by userspace. This patch introduces and uses should_stop_polling() to decide whether the device should be polled or not. Signed-off-by: Andrzej Pietrasiewicz Reviewed-by: Bartlomiej Zolnierkiewicz --- drivers/thermal/thermal_core.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 52d136780577..e613f5c07bad 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -301,13 +301,22 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz, cancel_delayed_work(&tz->poll_queue); } +static inline bool should_stop_polling(struct thermal_zone_device *tz) +{ + return !thermal_zone_device_is_enabled(tz); +} + static void monitor_thermal_zone(struct thermal_zone_device *tz) { + bool stop; + + stop = should_stop_polling(tz); + mutex_lock(&tz->lock); - if (tz->passive) + if (!stop && tz->passive) thermal_zone_device_set_polling(tz, tz->passive_delay); - else if (tz->polling_delay) + else if (!stop && tz->polling_delay) thermal_zone_device_set_polling(tz, tz->polling_delay); else thermal_zone_device_set_polling(tz, 0); @@ -517,6 +526,9 @@ void thermal_zone_device_update(struct thermal_zone_device *tz, { int count; + if (should_stop_polling(tz)) + return; + if (atomic_read(&in_suspend)) return;