From patchwork Thu Nov 12 08:49:43 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sia Jee Heng X-Patchwork-Id: 11899441 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 02343C56201 for ; Thu, 12 Nov 2020 09:06:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AA306221FE for ; Thu, 12 Nov 2020 09:06:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727475AbgKLJGg (ORCPT ); Thu, 12 Nov 2020 04:06:36 -0500 Received: from mga11.intel.com ([192.55.52.93]:52954 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727663AbgKLJGd (ORCPT ); Thu, 12 Nov 2020 04:06:33 -0500 IronPort-SDR: SiBdswN45h/+a1l/SdKRLpJ+tDSobuCm4y9/6q9oxnBI8lKF7a/zkL7Xc8XbRbcJM7+Xw6Vusu Cb2h5EwCfoxA== X-IronPort-AV: E=McAfee;i="6000,8403,9802"; a="166773040" X-IronPort-AV: E=Sophos;i="5.77,471,1596524400"; d="scan'208";a="166773040" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Nov 2020 01:06:33 -0800 IronPort-SDR: iVRFTIR6bSZk1bHUq0JddlsSKGSUMMqpwZBRIrME1vrE7k5CVXUL1z+WYPYe18QGrYWuvy77Z8 HKTrYR/E0N3w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,471,1596524400"; d="scan'208";a="360911545" Received: from jsia-hp-z620-workstation.png.intel.com ([10.221.118.135]) by fmsmga002.fm.intel.com with ESMTP; 12 Nov 2020 01:06:31 -0800 From: Sia Jee Heng To: vkoul@kernel.org, Eugeniy.Paltsev@synopsys.com, robh+dt@kernel.org Cc: andriy.shevchenko@linux.intel.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 05/15] dmaengine: dw-axi-dmac: Add device_config operation Date: Thu, 12 Nov 2020 16:49:43 +0800 Message-Id: <20201112084953.21629-6-jee.heng.sia@intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201112084953.21629-1-jee.heng.sia@intel.com> References: <20201112084953.21629-1-jee.heng.sia@intel.com> Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org Add device_config() callback function so that the device address can be passed to the dma driver. DMA clients use this interface to pass in the device address to the AxiDMA. Without this interface, data transfer between device to memory and memory to device would failed. Reviewed-by: Andy Shevchenko Signed-off-by: Sia Jee Heng --- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 11 +++++++++++ drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 1 + 2 files changed, 12 insertions(+) diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index 56b213211341..16e6934ae9a1 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -559,6 +559,16 @@ dma_chan_prep_dma_memcpy(struct dma_chan *dchan, dma_addr_t dst_adr, return NULL; } +static int dw_axi_dma_chan_slave_config(struct dma_chan *dchan, + struct dma_slave_config *config) +{ + struct axi_dma_chan *chan = dchan_to_axi_dma_chan(dchan); + + memcpy(&chan->config, config, sizeof(*config)); + + return 0; +} + static void axi_chan_dump_lli(struct axi_dma_chan *chan, struct axi_dma_hw_desc *desc) { @@ -948,6 +958,7 @@ static int dw_probe(struct platform_device *pdev) dw->dma.device_prep_dma_memcpy = dma_chan_prep_dma_memcpy; dw->dma.device_synchronize = dw_axi_dma_synchronize; + dw->dma.device_config = dw_axi_dma_chan_slave_config; platform_set_drvdata(pdev, chip); diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h index f886b2bb75de..a75b921d6b1a 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h @@ -43,6 +43,7 @@ struct axi_dma_chan { struct virt_dma_chan vc; struct axi_dma_desc *desc; + struct dma_slave_config config; /* these other elements are all protected by vc.lock */ bool is_paused; };