From patchwork Fri Jul 21 09:49:40 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 9856429 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 F406760392 for ; Fri, 21 Jul 2017 09:56:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D19B22872B for ; Fri, 21 Jul 2017 09:56:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C5CFB2877C; Fri, 21 Jul 2017 09:56:45 +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 6C50D2872B for ; Fri, 21 Jul 2017 09:56:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754162AbdGUJ4o (ORCPT ); Fri, 21 Jul 2017 05:56:44 -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 S1753762AbdGUJ4o (ORCPT ); Fri, 21 Jul 2017 05:56:44 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga105.fm.intel.com with ESMTP; 21 Jul 2017 02:56:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,389,1496127600"; d="scan'208";a="1153800142" Received: from ahunter-desktop.fi.intel.com ([10.237.72.168]) by orsmga001.jf.intel.com with ESMTP; 21 Jul 2017 02:56:39 -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 07/11] mmc: mmc: Enable CQE's Date: Fri, 21 Jul 2017 12:49:40 +0300 Message-Id: <1500630584-22852-8-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 Enable or disable CQE when a card is added or removed respectively. Signed-off-by: Adrian Hunter --- drivers/mmc/core/bus.c | 7 +++++++ drivers/mmc/core/mmc.c | 13 +++++++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 301246513a37..a4b49e25fe96 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -369,10 +369,17 @@ int mmc_add_card(struct mmc_card *card) */ void mmc_remove_card(struct mmc_card *card) { + struct mmc_host *host = card->host; + #ifdef CONFIG_DEBUG_FS mmc_remove_card_debugfs(card); #endif + if (host->cqe_enabled) { + host->cqe_ops->cqe_disable(host); + host->cqe_enabled = false; + } + if (mmc_card_present(card)) { if (mmc_host_is_spi(card->host)) { pr_info("%s: SPI card removed\n", diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 2ff0caf92bc8..92c6167d64e0 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1804,6 +1804,19 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, */ card->reenable_cmdq = card->ext_csd.cmdq_en; + if (card->ext_csd.cmdq_en && (host->caps2 & MMC_CAP2_CQE) && + !host->cqe_enabled) { + err = host->cqe_ops->cqe_enable(host, card); + if (err) { + pr_err("%s: Failed to enable CQE, error %d\n", + mmc_hostname(host), err); + } else { + host->cqe_enabled = true; + pr_info("%s: Command Queue Engine enabled\n", + mmc_hostname(host)); + } + } + /* * The mandatory minimum values are defined for packed command. * read: 5, write: 3