Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753366Ab3IZPk1 (ORCPT ); Thu, 26 Sep 2013 11:40:27 -0400 Received: from mail-qc0-f169.google.com ([209.85.216.169]:47355 "EHLO mail-qc0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750788Ab3IZPkW (ORCPT ); Thu, 26 Sep 2013 11:40:22 -0400 Date: Thu, 26 Sep 2013 11:40:19 -0400 (EDT) From: Nicolas Pitre To: Ulf Hansson cc: linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, Chris Ball , Thomas Petazzoni , Jason Cooper , Andrew Lunn Subject: Re: [PATCH 09/27] mmc: mvsdio: Remove redundant suspend and resume callbacks In-Reply-To: <1380207292-16968-10-git-send-email-ulf.hansson@linaro.org> Message-ID: References: <1380207292-16968-1-git-send-email-ulf.hansson@linaro.org> <1380207292-16968-10-git-send-email-ulf.hansson@linaro.org> User-Agent: Alpine 2.03 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 694 Lines: 18 On Thu, 26 Sep 2013, Ulf Hansson wrote: > Suspend and resume of cards are handled by the protocol layer and > consequently the mmc_suspend|resume_host APIs are marked as deprecated. Having the protocol layer take care of card suspend is perfectly sound. However, what about host controllers? Shouldn't they suspend themselves as well? There is certainly potential for power saving by gating clocks to the host IP block or the like. Nicolas -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/