From patchwork Mon Oct 8 12:08:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ludovic BARRE X-Patchwork-Id: 10630567 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1230314DB for ; Mon, 8 Oct 2018 12:21:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D02B028D87 for ; Mon, 8 Oct 2018 12:21:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C3CA828D74; Mon, 8 Oct 2018 12:21:44 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 45FF628D48 for ; Mon, 8 Oct 2018 12:21:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=UDHQdMKnLe/uSl/f9+Ax+KrnLldAUb/0vMDRj2RvLCU=; b=gviSBD72EUyBJF D26TauM2rsc/YA/l9MW24j6JdlDAOqKdEdzvq1F/caP1L3bGBHLxFW3ba4H38bJ25jwYs9Aoiwdy2 oma9mnx0IBmgocN4kfR9j6URexV2ubcYOea8JhYkhl1qxELnSbuE1Z29XeUuF8TX+S7ICL0Q+k7Dd VlkNky2Z5MFAD7L2GzjYGUVF5zfy/nonaoDDcg2jPNPMcIz9quJTOcXgLYtZkP+zcWc1f8GpFcQEr RFlvew+3Dqe6Uqfn3so+e83bcZYVwFob3bwEkwQ1EW6+ixusb4YLg6Ctry3LRnb1wS2ENPQRlBeZ7 i8oKLfD0gSyxIOA4hmiA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1g9UXU-0004ZU-Qr; Mon, 08 Oct 2018 12:21:32 +0000 Received: from mx07-00178001.pphosted.com ([62.209.51.94]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1g9UMB-0004PT-Iz for linux-arm-kernel@lists.infradead.org; Mon, 08 Oct 2018 12:10:54 +0000 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id w98C44u2018783; Mon, 8 Oct 2018 14:09:41 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2n01heht4w-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 08 Oct 2018 14:09:40 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 24CFA4A; Mon, 8 Oct 2018 12:09:40 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id EF5592D03; Mon, 8 Oct 2018 12:09:39 +0000 (GMT) Received: from SAFEX1HUBCAS22.st.com (10.75.90.93) by SAFEX1HUBCAS23.st.com (10.75.90.46) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 8 Oct 2018 14:09:39 +0200 Received: from lmecxl0923.lme.st.com (10.48.0.237) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.361.1; Mon, 8 Oct 2018 14:09:39 +0200 From: Ludovic Barre To: Ulf Hansson , Rob Herring Subject: [PATCH V6 08/23] mmc: mmci: add dma_error callback Date: Mon, 8 Oct 2018 14:08:40 +0200 Message-ID: <1539000535-13261-9-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1539000535-13261-1-git-send-email-ludovic.Barre@st.com> References: <1539000535-13261-1-git-send-email-ludovic.Barre@st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.0.237] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-10-08_03:, , signatures=0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181008_050952_034858_0ECDBB2C X-CRM114-Status: GOOD ( 16.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Alexandre Torgue , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@linaro.org, Ludovic Barre , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Ludovic Barre This patch adds dma_error callback at mmci_host_ops to allow to call specific variant. Signed-off-by: Ludovic Barre --- drivers/mmc/host/mmci.c | 26 +++++++++++++++----------- drivers/mmc/host/mmci.h | 2 ++ drivers/mmc/host/mmci_qcom_dml.c | 1 + 3 files changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 4570042..3d4431b 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -469,6 +469,15 @@ void mmci_dma_finalize(struct mmci_host *host, struct mmc_data *data) host->ops->dma_finalize(host, data); } +void mmci_dma_error(struct mmci_host *host) +{ + if (!host->use_dma) + return; + + if (host->ops && host->ops->dma_error) + host->ops->dma_error(host); +} + static void mmci_request_end(struct mmci_host *host, struct mmc_request *mrq) { @@ -633,11 +642,11 @@ static void mmci_dma_unmap(struct mmci_host *host, struct mmc_data *data) mmc_get_dma_dir(data)); } -static void mmci_dma_data_error(struct mmci_host *host) +void mmci_dmae_error(struct mmci_host *host) { struct mmci_dmae_priv *dmae = host->dma_priv; - if (!host->use_dma || !dma_inprogress(host)) + if (!dma_inprogress(host)) return; dev_err(mmc_dev(host->mmc), "error during DMA transfer!\n"); @@ -674,7 +683,7 @@ void mmci_dmae_finalize(struct mmci_host *host, struct mmc_data *data) * contiguous buffers. On TX, we'll get a FIFO underrun error. */ if (status & MCI_RXDATAAVLBLMASK) { - mmci_dma_data_error(host); + mmci_dma_error(host); if (!data->error) data->error = -EIO; } else if (!data->host_cookie) { @@ -854,18 +863,13 @@ static struct mmci_host_ops mmci_variant_ops = { .dma_release = mmci_dmae_release, .dma_start = mmci_dmae_start, .dma_finalize = mmci_dmae_finalize, + .dma_error = mmci_dmae_error, }; void mmci_variant_init(struct mmci_host *host) { host->ops = &mmci_variant_ops; } -#else -/* Blank functions if the DMA engine is not available */ -static inline void mmci_dma_data_error(struct mmci_host *host) -{ -} - #endif static void mmci_pre_request(struct mmc_host *mmc, struct mmc_request *mrq) @@ -1037,7 +1041,7 @@ mmci_data_irq(struct mmci_host *host, struct mmc_data *data, u32 remain, success; /* Terminate the DMA transfer */ - mmci_dma_data_error(host); + mmci_dma_error(host); /* * Calculate how far we are into the transfer. Note that @@ -1183,7 +1187,7 @@ mmci_cmd_irq(struct mmci_host *host, struct mmc_command *cmd, if ((!sbc && !cmd->data) || cmd->error) { if (host->data) { /* Terminate the DMA transfer */ - mmci_dma_data_error(host); + mmci_dma_error(host); mmci_stop_data(host); } diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 8c1493b..bcf3e8b 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -282,6 +282,7 @@ struct mmci_host_ops { void (*dma_release)(struct mmci_host *host); int (*dma_start)(struct mmci_host *host, unsigned int *datactrl); void (*dma_finalize)(struct mmci_host *host, struct mmc_data *data); + void (*dma_error)(struct mmci_host *host); }; struct mmci_host { @@ -343,3 +344,4 @@ int mmci_dmae_setup(struct mmci_host *host); void mmci_dmae_release(struct mmci_host *host); int mmci_dmae_start(struct mmci_host *host, unsigned int *datactrl); void mmci_dmae_finalize(struct mmci_host *host, struct mmc_data *data); +void mmci_dmae_error(struct mmci_host *host); diff --git a/drivers/mmc/host/mmci_qcom_dml.c b/drivers/mmc/host/mmci_qcom_dml.c index c2ef73f..25d0a75 100644 --- a/drivers/mmc/host/mmci_qcom_dml.c +++ b/drivers/mmc/host/mmci_qcom_dml.c @@ -191,6 +191,7 @@ static struct mmci_host_ops qcom_variant_ops = { .dma_release = mmci_dmae_release, .dma_start = mmci_dmae_start, .dma_finalize = mmci_dmae_finalize, + .dma_error = mmci_dmae_error, }; void qcom_variant_init(struct mmci_host *host)