From patchwork Mon Dec 21 17:23:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kai-Heng Feng X-Patchwork-Id: 346526 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 EAC9CC433DB for ; Mon, 21 Dec 2020 17:25:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BCD5322B45 for ; Mon, 21 Dec 2020 17:25:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726044AbgLURYs (ORCPT ); Mon, 21 Dec 2020 12:24:48 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:32918 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726026AbgLURYs (ORCPT ); Mon, 21 Dec 2020 12:24:48 -0500 Received: from 36-229-229-222.dynamic-ip.hinet.net ([36.229.229.222] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1krOub-0003Tq-14; Mon, 21 Dec 2020 17:23:57 +0000 From: Kai-Heng Feng To: rui.zhang@intel.com, daniel.lezcano@linaro.org, amitk@kernel.org Cc: andrzej.p@collabora.com, mjg59@google.com, srinivas.pandruvada@linux.intel.com, Kai-Heng Feng , Sumeet Pawnikar , Andy Shevchenko , Gayatri Kammela , Randy Dunlap , Andres Freund , Chuhong Yuan , Akinobu Mita , linux-pm@vger.kernel.org (open list:THERMAL), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 2/2] thermal: intel: pch: Fix unexpected shutdown at critical temperature Date: Tue, 22 Dec 2020 01:23:44 +0800 Message-Id: <20201221172345.36976-2-kai.heng.feng@canonical.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201221172345.36976-1-kai.heng.feng@canonical.com> References: <20201221172345.36976-1-kai.heng.feng@canonical.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Like previous patch, the intel_pch_thermal device is not in ACPI ThermalZone namespace, so a critical trip doesn't mean shutdown. Override the default .critical callback to prevent surprising thermal shutdoown. Signed-off-by: Kai-Heng Feng --- v2: - Amend subject. drivers/thermal/intel/intel_pch_thermal.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/thermal/intel/intel_pch_thermal.c b/drivers/thermal/intel/intel_pch_thermal.c index 41723c6c6c0c..527c91f5960b 100644 --- a/drivers/thermal/intel/intel_pch_thermal.c +++ b/drivers/thermal/intel/intel_pch_thermal.c @@ -326,10 +326,16 @@ static int pch_get_trip_temp(struct thermal_zone_device *tzd, int trip, int *tem return 0; } +static void pch_critical(struct thermal_zone_device *tzd) +{ + dev_dbg(&tzd->device, "%s: critical temperature reached\n", tzd->type); +} + static struct thermal_zone_device_ops tzd_ops = { .get_temp = pch_thermal_get_temp, .get_trip_type = pch_get_trip_type, .get_trip_temp = pch_get_trip_temp, + .critical = pch_critical, }; enum board_ids {