From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752972Ab2G0JC4 (ORCPT ); Fri, 27 Jul 2012 05:02:56 -0400 Received: from co1ehsobe003.messaging.microsoft.com ([216.32.180.186]:17275 "EHLO co1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752275Ab2G0JCU (ORCPT ); Fri, 27 Jul 2012 05:02:20 -0400 X-Forefront-Antispam-Report: CIP:163.181.249.109;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-SpamScore: 0 X-BigFish: VPS0(zzzz1202hzz8275bhz2dh668h839hd24he5bhf0ah107ah) X-WSS-ID: 0M7TAFR-02-6OO-02 X-M-MSG: From: Aaron Lu To: James Bottomley , Jeff Garzik , Alan Stern , Sergei Shtylyov , Oliver Neukum CC: Jeff Wu , Lin Ming , , , , , Aaron Lu , Aaron Lu Subject: [PATCH v4 2/7] scsi: pm: add interface to autosuspend scsi device Date: Fri, 27 Jul 2012 17:00:45 +0800 Message-ID: <1343379650-2867-3-git-send-email-aaron.lu@amd.com> X-Mailer: git-send-email 1.7.11.3 In-Reply-To: <1343379650-2867-1-git-send-email-aaron.lu@amd.com> References: <1343379650-2867-1-git-send-email-aaron.lu@amd.com> X-OriginalArrivalTime: 27 Jul 2012 09:01:59.0252 (UTC) FILETIME=[7AE39140:01CD6BD6] MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new interface scsi_autopm_put_device_autosuspend to mark last busy for the device and then put autosuspend the device. Signed-off-by: Aaron Lu --- drivers/scsi/scsi_pm.c | 7 +++++++ include/scsi/scsi_device.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index dc0ad85..83edb93 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -201,6 +201,13 @@ void scsi_autopm_put_device(struct scsi_device *sdev) } EXPORT_SYMBOL_GPL(scsi_autopm_put_device); +void scsi_autopm_put_device_autosuspend(struct scsi_device *sdev) +{ + pm_runtime_mark_last_busy(&sdev->sdev_gendev); + pm_runtime_put_autosuspend(&sdev->sdev_gendev); +} +EXPORT_SYMBOL_GPL(scsi_autopm_put_device_autosuspend); + void scsi_autopm_get_target(struct scsi_target *starget) { pm_runtime_get_sync(&starget->dev); diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 9895f69..3636146 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -395,9 +395,11 @@ extern int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd, #ifdef CONFIG_PM_RUNTIME extern int scsi_autopm_get_device(struct scsi_device *); extern void scsi_autopm_put_device(struct scsi_device *); +extern void scsi_autopm_put_device_autosuspend(struct scsi_device *); #else static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; } static inline void scsi_autopm_put_device(struct scsi_device *d) {} +static inline void scsi_autopm_put_device_autosuspend(struct scsi_device *d) {} #endif /* CONFIG_PM_RUNTIME */ static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev) -- 1.7.11.3