From patchwork Tue Sep 7 11:29:05 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ohad Ben Cohen X-Patchwork-Id: 178062 Return-path: X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on void.printf.net X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.9 tests=RCVD_IN_DNSWL_LOW autolearn=disabled version=3.2.5 Envelope-to: chris@printf.net Delivery-date: Tue, 07 Sep 2010 12:29:51 +0100 Received: from lists.laptop.org ([18.85.2.145] helo=mail.laptop.org) by void.printf.net with esmtp (Exim 4.69) (envelope-from ) id 1OswN5-0004RR-4V for chris@printf.net; Tue, 07 Sep 2010 12:29:51 +0100 Received: by mail.laptop.org (Postfix) id CA31F2499B; Tue, 7 Sep 2010 07:29:30 -0400 (EDT) Delivered-To: cjb@laptop.org Received: from spam.laptop.org (spam.laptop.org [18.85.46.23]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.laptop.org (Postfix) with ESMTPS id CD5DC24999 for ; Tue, 7 Sep 2010 07:29:29 -0400 (EDT) X-ASG-Debug-ID: 1283858985-0b74e4e70001-zHW3sV Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by spam.laptop.org with ESMTP id C0OxBMOAY3oNJrYu for ; Tue, 07 Sep 2010 07:29:46 -0400 (EDT) X-Barracuda-Envelope-From: linux-mmc-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756501Ab0IGL3p (ORCPT ); Tue, 7 Sep 2010 07:29:45 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:49491 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756511Ab0IGL3o (ORCPT ); Tue, 7 Sep 2010 07:29:44 -0400 Received: by mail-fx0-f46.google.com with SMTP id 13so2890806fxm.19 for ; Tue, 07 Sep 2010 04:29:43 -0700 (PDT) Received: by 10.223.114.1 with SMTP id c1mr1354541faq.57.1283858983774; Tue, 07 Sep 2010 04:29:43 -0700 (PDT) Received: from localhost.localdomain (46-116-15-195.bb.netvision.net.il [46.116.15.195]) by mx.google.com with ESMTPS id r8sm2764094faq.34.2010.09.07.04.29.41 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 07 Sep 2010 04:29:43 -0700 (PDT) From: Ohad Ben-Cohen To: , Cc: Luciano Coelho , , San Mehat , Roger Quadros , Nicolas Pitre , Gao Yunpeng , Ohad Ben-Cohen X-ASG-Orig-Subj: [PATCH v1 4/8] mmc: add general Runtime PM support Subject: [PATCH v1 4/8] mmc: add general Runtime PM support Date: Tue, 7 Sep 2010 14:29:05 +0300 Message-Id: <1283858949-11073-5-git-send-email-ohad@wizery.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1283858949-11073-1-git-send-email-ohad@wizery.com> References: <1283858949-11073-1-git-send-email-ohad@wizery.com> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Barracuda-Connect: vger.kernel.org[209.132.180.67] X-Barracuda-Start-Time: 1283858985 X-Barracuda-URL: http://18.85.46.23:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at laptop.org X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.5 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.40182 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 7cd9749..a302e57 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -142,6 +143,41 @@ static int mmc_bus_resume(struct device *dev) return ret; } +#ifdef CONFIG_PM_RUNTIME + +static int mmc_runtime_suspend(struct device *dev) +{ + struct mmc_card *card = dev_to_mmc_card(dev); + + return mmc_power_save_host(card->host); +} + +static int mmc_runtime_resume(struct device *dev) +{ + struct mmc_card *card = dev_to_mmc_card(dev); + + return mmc_power_restore_host(card->host); +} + +static int mmc_runtime_idle(struct device *dev) +{ + return pm_runtime_suspend(dev); +} + +static const struct dev_pm_ops mmc_bus_pm_ops = { + .runtime_suspend = mmc_runtime_suspend, + .runtime_resume = mmc_runtime_resume, + .runtime_idle = mmc_runtime_idle, +}; + +#define MMC_PM_OPS_PTR (&mmc_bus_pm_ops) + +#else /* !CONFIG_PM_RUNTIME */ + +#define MMC_PM_OPS_PTR NULL + +#endif /* !CONFIG_PM_RUNTIME */ + static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -151,6 +187,7 @@ static struct bus_type mmc_bus_type = { .remove = mmc_bus_remove, .suspend = mmc_bus_suspend, .resume = mmc_bus_resume, + .pm = MMC_PM_OPS_PTR, }; int mmc_register_bus(void)