From patchwork Fri Jun 25 05:22:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 12343619 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 7AF39C48BC2 for ; Fri, 25 Jun 2021 05:22:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 637226140B for ; Fri, 25 Jun 2021 05:22:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233171AbhFYFZB (ORCPT ); Fri, 25 Jun 2021 01:25:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:46324 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233133AbhFYFZA (ORCPT ); Fri, 25 Jun 2021 01:25:00 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C54B56140B; Fri, 25 Jun 2021 05:22:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624598560; bh=MPl3vTAAEWf4+fP0ly5QUJMsJvvm/k1y8noRL42CSiI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A32ePgDycnk16AQJ9ftY5wD76rBy/xHphLZ0/ePtzUmNAAgeC0CfleSfg2G5pFSZA /h1SYvGeFn7dUIDaeQjW6AV5Uo/Fiok8d0NTBhASL3DoMvgcbYVVmye+ebcQbD04Gj guqoKhh6Gt7CPVoPCTPZ2yGXXjZZ8VBzqRUjCSHAUa+8LmeqDKMgzWqNW6tYyqb3Tx w2nxVetxHq2PFEvZSUTqp5L6hsxBvxTJfLHZ+AXkD26cQtJRE7Dnw4SHIAr5h80w/U o6vBqeHtQ5etL4H56CKEW8F6ULlba0ZqJP7BN/JQsn/ojD0exaTbV1f47GC9wVEAxl BvkAjYJUho1Zg== From: Vinod Koul To: Bjorn Andersson , Mark Brown , Wolfram Sang Cc: Vinod Koul , Andy Gross , Sumit Semwal , Douglas Anderson , Matthias Kaehlcke , linux-spi@vger.kernel.org, linux-i2c@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/5] spi: core: add dma_map_dev for dma device Date: Fri, 25 Jun 2021 10:52:11 +0530 Message-Id: <20210625052213.32260-4-vkoul@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210625052213.32260-1-vkoul@kernel.org> References: <20210625052213.32260-1-vkoul@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some controllers like qcom geni need the parent device to be used for dma mapping, so add a dma_map_dev field and let drivers fill this to be used as mapping device Signed-off-by: Vinod Koul --- drivers/spi/spi.c | 4 ++++ include/linux/spi/spi.h | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index e353b7a9e54e..315f7e7545f7 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -961,11 +961,15 @@ static int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg) if (ctlr->dma_tx) tx_dev = ctlr->dma_tx->device->dev; + else if (ctlr->dma_map_dev) + tx_dev = ctlr->dma_map_dev; else tx_dev = ctlr->dev.parent; if (ctlr->dma_rx) rx_dev = ctlr->dma_rx->device->dev; + else if (ctlr->dma_map_dev) + rx_dev = ctlr->dma_map_dev; else rx_dev = ctlr->dev.parent; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 74239d65c7fd..4d3f116f5723 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -586,6 +586,7 @@ struct spi_controller { bool (*can_dma)(struct spi_controller *ctlr, struct spi_device *spi, struct spi_transfer *xfer); + struct device *dma_map_dev; /* * These hooks are for drivers that want to use the generic