From patchwork Tue Oct 27 06:38:48 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: 11859503 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=-12.8 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 C1762C4363A for ; Tue, 27 Oct 2020 06:55:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7EF832225E for ; Tue, 27 Oct 2020 06:55:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2506902AbgJ0Gze (ORCPT ); Tue, 27 Oct 2020 02:55:34 -0400 Received: from mga02.intel.com ([134.134.136.20]:42071 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2506906AbgJ0Gzc (ORCPT ); Tue, 27 Oct 2020 02:55:32 -0400 IronPort-SDR: OejG2p/D1XzDdN+bN/yHT3ar04UoET0eEEetvfzIc8K0SHrXiEyXqRm21KiYXtEVC1kaj/FA0t WNEeHZr5krVg== X-IronPort-AV: E=McAfee;i="6000,8403,9786"; a="155004151" X-IronPort-AV: E=Sophos;i="5.77,422,1596524400"; d="scan'208";a="155004151" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2020 23:55:32 -0700 IronPort-SDR: AzfNElvIe+6ZAVFltlPpCPBijUmDhPs3fOgJlUkdVffGwbIWsR/EI+6p+L69OpPrZYSXTYvSEL cqo1+3qV81ig== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,422,1596524400"; d="scan'208";a="350175852" Received: from jsia-hp-z620-workstation.png.intel.com ([10.221.118.135]) by orsmga008.jf.intel.com with ESMTP; 26 Oct 2020 23:55:30 -0700 From: Sia Jee Heng To: vkoul@kernel.org, Eugeniy.Paltsev@synopsys.com Cc: andriy.shevchenko@linux.intel.com, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 05/15] dmaengine: dw-axi-dmac: Add device_config operation Date: Tue, 27 Oct 2020 14:38:48 +0800 Message-Id: <20201027063858.4877-6-jee.heng.sia@intel.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20201027063858.4877-1-jee.heng.sia@intel.com> References: <20201027063858.4877-1-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; };