From mboxrd@z Thu Jan 1 00:00:00 1970 From: Adrian Hunter Subject: Re: [PATCH V4 00/15] mmc: host: Add facility to support re-tuning Date: Wed, 01 Apr 2015 09:21:47 +0300 Message-ID: <551B8E7B.9020605@intel.com> References: <1427489863-9050-1-git-send-email-adrian.hunter@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com ([134.134.136.24]:63532 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751302AbbDAGXv (ORCPT ); Wed, 1 Apr 2015 02:23:51 -0400 In-Reply-To: <1427489863-9050-1-git-send-email-adrian.hunter@intel.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Ulf Hansson Cc: linux-mmc , Aaron Lu , Philip Rakity , Al Cooper , Arend van Spriel On 27/03/15 22:57, Adrian Hunter wrote: > Hi > > Here is V4 of some patches to move re-tuning support > out of sdhci and into the core, and add support for HS400 > re-tuning. > > Currently sdhci does re-tuning transparently by > calling sdhci_execute_tuning() from its ->request() > function. > > The problem with HS400 re-tuning is that it must be > done in HS200 mode. That means using switch commands > and making ios changes. That means it potentially > conflicts with other command sequences. The new > re-tuning support accomodates that. > > These patches now depend on Ulf's patch: > > mmc: core: Enable runtime PM management of host devices > > > Changes in V4: > > mmc: host: Add facility to support re-tuning > > Assume mmc_claim_host() runtime resumes the host > controller so there are no races with runtime pm. > Consequently remove now un-needed re-tuning host > operations. > > mmc: core: Add support for re-tuning before each request > > Call mmc_retune() prior to ->request() > > mmc: sdhci: Change to new way of doing re-tuning > > Updated to reflect the changes above. Hi What is the status of this? Regards Adrian