From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chuanxiao Dong Subject: [PATCH v1 0/3]mmc: add runtime pm for mmc host stack Date: Fri, 14 Jan 2011 16:22:55 +0800 Message-ID: <20110114082255.GA27523@intel.com> Reply-To: Chuanxiao Dong Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga03.intel.com ([143.182.124.21]:63848 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751046Ab1ANI2P (ORCPT ); Fri, 14 Jan 2011 03:28:15 -0500 Content-Disposition: inline Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: linux-mmc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, cjb@laptop.org, ohad@wizery.com Hi all, These are the version 1 patches for enabling runtime power management for mmc host driver stack. Right now runtime pm in mmc driver stack can only care about the power of SDIO card, not the host controller. Host controller also needs runtime pm to save power. MMC host can let the host device go into runtime suspended state when there is no user request to deal, and wake up host device when there comes one. MMC driver will manage the power of host controller like this way. patch1: implemented runtime pm for mmc host patch2: implemented runtime pm for SDHCI host controller patch3: Do not let mmc host clock gated when host is in runtime suspended state. Thanks Chuanxiao