From patchwork Wed Sep 24 16:14:51 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 4968611 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3551D9F2F0 for ; Wed, 24 Sep 2014 16:57:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1682820270 for ; Wed, 24 Sep 2014 16:57:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D96C92026C for ; Wed, 24 Sep 2014 16:57:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752979AbaIXQ5X (ORCPT ); Wed, 24 Sep 2014 12:57:23 -0400 Received: from mga11.intel.com ([192.55.52.93]:49437 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753173AbaIXQqf (ORCPT ); Wed, 24 Sep 2014 12:46:35 -0400 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP; 24 Sep 2014 09:46:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.04,590,1406617200"; d="scan'208";a="604749217" Received: from vkoul-udesk3.iind.intel.com (HELO localhost.localdomain) ([10.223.96.11]) by fmsmga002.fm.intel.com with ESMTP; 24 Sep 2014 09:45:27 -0700 From: Vinod Koul To: linux-kernel@vger.kernel.org Cc: subhransu.s.prusty@intel.com, vinod.koul@intel.com, "Rafael J. Wysocki" , Len Brown , Pavel Machek , Randy Dunlap , Ulf Hansson , Alan Stern , linux-pm@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH 01/27] PM: Add helper pm_runtime_last_busy_and_autosuspend() Date: Wed, 24 Sep 2014 21:44:51 +0530 Message-Id: <1411575342-31048-2-git-send-email-vinod.koul@intel.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1411575342-31048-1-git-send-email-vinod.koul@intel.com> References: <1411575342-31048-1-git-send-email-vinod.koul@intel.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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: Subhransu S. Prusty pm_runtime_mark_last_busy and pm_runtime_put_autosuspend are used together in quite a lot of places. Add a helper for these. Also updated Documentation for this Signed-off-by: Subhransu S. Prusty Signed-off-by: Vinod Koul --- Documentation/power/runtime_pm.txt | 4 ++++ include/linux/pm_runtime.h | 6 ++++++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index f32ce54..5d9565b 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -490,6 +490,10 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: power.use_autosuspend isn't set, otherwise returns the expiration time in jiffies + int pm_runtime_last_busy_and_autosuspend(struct device *dev); + - invoke pm_runtime_mark_last_busy(dev) and then run + pm_runtime_put_autosuspend(dev) and return its result + It is safe to execute the following helper functions from interrupt context: pm_request_idle() diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 367f49b..256ec50 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -277,4 +277,10 @@ static inline void pm_runtime_dont_use_autosuspend(struct device *dev) __pm_runtime_use_autosuspend(dev, false); } +static inline int pm_runtime_last_busy_and_autosuspend(struct device *dev) +{ + pm_runtime_mark_last_busy(dev); + return pm_runtime_put_autosuspend(dev); +} + #endif