From patchwork Sun Sep 27 05:48:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chen Yu X-Patchwork-Id: 7273041 X-Patchwork-Delegate: rui.zhang@intel.com Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 165F29F36A for ; Sun, 27 Sep 2015 05:46:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A5CFD2092A for ; Sun, 27 Sep 2015 05:46:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7AFC2070E for ; Sun, 27 Sep 2015 05:46:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753764AbbI0Fpx (ORCPT ); Sun, 27 Sep 2015 01:45:53 -0400 Received: from mga14.intel.com ([192.55.52.115]:2676 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753063AbbI0Fpq (ORCPT ); Sun, 27 Sep 2015 01:45:46 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga103.fm.intel.com with ESMTP; 26 Sep 2015 22:45:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,596,1437462000"; d="scan'208";a="814001968" Received: from unknown (HELO localhost.localdomain.sh.intel.com) ([10.239.160.87]) by orsmga002.jf.intel.com with ESMTP; 26 Sep 2015 22:45:44 -0700 From: Chen Yu To: linux-pm@vger.kernel.org, edubezval@gmail.com, javi.merino@arm.com Cc: rui.zhang@intel.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH 3/3] Thermal: do thermal zone update after a cooling device registered Date: Sun, 27 Sep 2015 13:48:44 +0800 Message-Id: <1443332924-14028-1-git-send-email-yu.c.chen@intel.com> X-Mailer: git-send-email 1.8.4.2 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Zhang Rui When a new cooling device is registered, we need to update the thermal zone to set the new registered cooling device to a proper state. This fixes a problem that the system is cool, while the fan devices are left running on full speed after boot, if fan device is registered after thermal zone device. CC: #3.18+ Reference:https://bugzilla.kernel.org/show_bug.cgi?id=92431 Tested-by: Manuel Krause Tested-by: szegad Tested-by: prash Tested-by: amish Signed-off-by: Zhang Rui Signed-off-by: Chen Yu --- drivers/thermal/thermal_core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index c3bdb48..09c78a4 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1450,6 +1450,7 @@ __thermal_cooling_device_register(struct device_node *np, const struct thermal_cooling_device_ops *ops) { struct thermal_cooling_device *cdev; + struct thermal_instance *pos, *next; int result; if (type && strlen(type) >= THERMAL_NAME_LENGTH) @@ -1494,6 +1495,15 @@ __thermal_cooling_device_register(struct device_node *np, /* Update binding information for 'this' new cdev */ bind_cdev(cdev); + list_for_each_entry_safe(pos, next, &cdev->thermal_instances, cdev_node) { + if (next->cdev_node.next == &cdev->thermal_instances) { + thermal_zone_device_update(next->tz); + break; + } + if (pos->tz != next->tz) + thermal_zone_device_update(pos->tz); + } + return cdev; }