From patchwork Mon Mar 15 14:59:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Wolfram Sang X-Patchwork-Id: 12139781 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72902C43332 for ; Mon, 15 Mar 2021 15:00:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4757E64D5D for ; Mon, 15 Mar 2021 15:00:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234481AbhCOPAB (ORCPT ); Mon, 15 Mar 2021 11:00:01 -0400 Received: from www.zeus03.de ([194.117.254.33]:47524 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233183AbhCOO7n (ORCPT ); Mon, 15 Mar 2021 10:59:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s=k1; bh=X HWdSMJT3SK/dokK4XrN9UwDTghxNOnmHFGyv7BBqJ0=; b=kkH+HyPveybhv/Csp +P05JsW4k6OXdFx/KrOpH2uYO7s73EdVwGWbUQ627cMhl2K3RCYCMLqkMmjsMFvc aekvezwvL1QFayAdfV2Fj4Arsyd31jBsU5c68t++3uzmTELtavY3XqedIZJqM8Is Dwx9cAhYeV/UdTKzkBAKpiLP48= Received: (qmail 1439236 invoked from network); 15 Mar 2021 15:59:40 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 15 Mar 2021 15:59:40 +0100 X-UD-Smtp-Session: l3s3148p1@JpjHf5S9DIsgARa4RYTzARykWRFxRPkz From: Wolfram Sang To: linux-mmc@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Wolfram Sang , =?utf-8?q?Niklas_S=C3=B6de?= =?utf-8?q?rlund?= Subject: [PATCH v2 1/3] mmc: tmio: abort DMA before reset Date: Mon, 15 Mar 2021 15:59:36 +0100 Message-Id: <20210315145938.58565-2-wsa+renesas@sang-engineering.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210315145938.58565-1-wsa+renesas@sang-engineering.com> References: <20210315145938.58565-1-wsa+renesas@sang-engineering.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org We will soon allow resetting the whole IP core via a reset controller. For this case, DMA must be terminated before the actual reset. For the other cases, it is probably better, too. Signed-off-by: Wolfram Sang Reviewed-by: Niklas Söderlund --- drivers/mmc/host/tmio_mmc_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index 5aa57640d0e6..eca767dcabba 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -172,11 +172,11 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host) sd_ctrl_write16(host, CTL_RESET_SD, 0x0001); usleep_range(10000, 11000); + tmio_mmc_abort_dma(host); + if (host->reset) host->reset(host); - tmio_mmc_abort_dma(host); - if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) { sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask); sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0001);