From patchwork Sat Oct 2 11:54:08 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: 226671 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id o92BvT2m020246 for ; Sat, 2 Oct 2010 11:57:29 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755333Ab0JBL51 (ORCPT ); Sat, 2 Oct 2010 07:57:27 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:33923 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755316Ab0JBL50 (ORCPT ); Sat, 2 Oct 2010 07:57:26 -0400 Received: by mail-fx0-f46.google.com with SMTP id 14so1071577fxm.19 for ; Sat, 02 Oct 2010 04:57:25 -0700 (PDT) Received: by 10.223.126.139 with SMTP id c11mr6501949fas.69.1286020645262; Sat, 02 Oct 2010 04:57:25 -0700 (PDT) Received: from localhost.localdomain (46-116-86-31.bb.netvision.net.il [46.116.86.31]) by mx.google.com with ESMTPS id j14sm1159450faa.23.2010.10.02.04.57.22 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 02 Oct 2010 04:57:23 -0700 (PDT) From: Ohad Ben-Cohen To: , Cc: Chris Ball , Nicolas Pitre , Luciano Coelho , Ohad Ben-Cohen Subject: [PATCH v2 04/11] mmc: add runtime PM handlers Date: Sat, 2 Oct 2010 13:54:08 +0200 Message-Id: <1286020455-28946-5-git-send-email-ohad@wizery.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1286020455-28946-1-git-send-email-ohad@wizery.com> References: <1286020455-28946-1-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-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Sat, 02 Oct 2010 11:57:29 +0000 (UTC) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index da3c01b..af8dc6a 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include @@ -141,6 +142,41 @@ 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 = mmc_dev_to_card(dev); + + return mmc_power_save_host(card->host); +} + +static int mmc_runtime_resume(struct device *dev) +{ + struct mmc_card *card = mmc_dev_to_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, @@ -150,6 +186,7 @@ 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)