From patchwork Fri Jul 21 09:49:37 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 9856423 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5A40560392 for ; Fri, 21 Jul 2017 09:56:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 373CA2872B for ; Fri, 21 Jul 2017 09:56:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2BF472877C; Fri, 21 Jul 2017 09:56:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C556C2872B for ; Fri, 21 Jul 2017 09:56:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754155AbdGUJ4a (ORCPT ); Fri, 21 Jul 2017 05:56:30 -0400 Received: from mga05.intel.com ([192.55.52.43]:29961 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753762AbdGUJ43 (ORCPT ); Fri, 21 Jul 2017 05:56:29 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP; 21 Jul 2017 02:56:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,389,1496127600"; d="scan'208";a="1153800075" Received: from ahunter-desktop.fi.intel.com ([10.237.72.168]) by orsmga001.jf.intel.com with ESMTP; 21 Jul 2017 02:56:24 -0700 From: Adrian Hunter To: Ulf Hansson Cc: linux-mmc , Bough Chen , Alex Lemberg , Mateusz Nowak , Yuliy Izrailov , Jaehoon Chung , Dong Aisheng , Das Asutosh , Zhangfei Gao , Dorfman Konstantin , David Griego , Sahitya Tummala , Harjani Ritesh , Venu Byravarasu , Linus Walleij , Shawn Lin Subject: [PATCH V4 04/11] mmc: core: Turn off CQE before sending commands Date: Fri, 21 Jul 2017 12:49:37 +0300 Message-Id: <1500630584-22852-5-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1500630584-22852-1-git-send-email-adrian.hunter@intel.com> References: <1500630584-22852-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Turn off the CQE before sending commands, and ensure it is off in any reset or power management paths, or re-tuning. Signed-off-by: Adrian Hunter --- drivers/mmc/core/core.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 26431267a3e2..b0af9db18eef 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -260,6 +260,9 @@ static void __mmc_start_request(struct mmc_host *host, struct mmc_request *mrq) trace_mmc_request_start(host, mrq); + if (host->cqe_on) + host->cqe_ops->cqe_off(host); + host->ops->request(host, mrq); } @@ -982,6 +985,9 @@ int mmc_execute_tuning(struct mmc_card *card) if (!host->ops->execute_tuning) return 0; + if (host->cqe_on) + host->cqe_ops->cqe_off(host); + if (mmc_card_mmc(card)) opcode = MMC_SEND_TUNING_BLOCK_HS200; else @@ -1021,6 +1027,9 @@ void mmc_set_bus_width(struct mmc_host *host, unsigned int width) */ void mmc_set_initial_state(struct mmc_host *host) { + if (host->cqe_on) + host->cqe_ops->cqe_off(host); + mmc_retune_disable(host); if (mmc_host_is_spi(host))