From patchwork Sun Jun 17 17:02:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Jarzmik X-Patchwork-Id: 10469169 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E308D60532 for ; Sun, 17 Jun 2018 17:32:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CA3AE288A7 for ; Sun, 17 Jun 2018 17:32:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD0E0288B9; Sun, 17 Jun 2018 17:32:29 +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,FREEMAIL_FROM,MAILING_LIST_MULTI 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 732DB288A7 for ; Sun, 17 Jun 2018 17:32:29 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=zcKddkjPU8UN86R6lQxRRXZ6zRhoFCXMcgQXdLWYnW4=; b=j1xWv1FOyHnk04htm746iwmKVU eQ8/gjjtsQI5513+ict/oo5b+aaGVE0t+w439SzIiCiAa/UB4Wv1DDaO+Uadja/IDkkjLTSanHNTD YkodEqvWTwgGGNwRiV8R6GIbKI22vVGb3qhThOV7VNZoCS4zJ51SY3gpf7wyiHwG8kWxb2OlPpNFG EjIheTgkx/m542WlDj93lthMp89QYUyf79S3aF+aDQWchpc+V+hvqmg1/a0r+A09Lkn8I/99ba1TC nqRzomZ+UItDXHHTpHrH5dqOnyG7pN3Ldtnq2VogBTdE3wwb0vKUXkdlJox+gxohFDiXVEnyJjjAc 0X3PMK6w==; 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 1fUbXO-0005wf-D7; Sun, 17 Jun 2018 17:32:26 +0000 Received: from smtp07.smtpout.orange.fr ([80.12.242.129] helo=smtp.smtpout.orange.fr) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fUb53-0006tv-6K for linux-arm-kernel@lists.infradead.org; Sun, 17 Jun 2018 17:03:22 +0000 Received: from belgarion.home ([90.55.203.186]) by mwinf5d83 with ME id zt2e1x00N41oiFu03t2wMQ; Sun, 17 Jun 2018 19:02:58 +0200 X-ME-Helo: belgarion.home X-ME-Auth: amFyem1pay5yb2JlcnRAb3JhbmdlLmZy X-ME-Date: Sun, 17 Jun 2018 19:02:58 +0200 X-ME-IP: 90.55.203.186 From: Robert Jarzmik To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Bartlomiej Zolnierkiewicz , Tejun Heo , Vinod Koul , Mauro Carvalho Chehab , Ulf Hansson , Miquel Raynal , Boris Brezillon , David Woodhouse , Brian Norris , Marek Vasut , Richard Weinberger , Nicolas Pitre , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown Subject: [PATCH v3 01/14] dmaengine: pxa: use a dma slave map Date: Sun, 17 Jun 2018 19:02:04 +0200 Message-Id: <20180617170217.24177-2-robert.jarzmik@free.fr> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180617170217.24177-1-robert.jarzmik@free.fr> References: <20180617170217.24177-1-robert.jarzmik@free.fr> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180617_100309_605529_72EE29BB X-CRM114-Status: GOOD ( 21.01 ) 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: alsa-devel@alsa-project.org, netdev@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org, linux-mtd@lists.infradead.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org MIME-Version: 1.0 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 In order to remove the specific knowledge of the dma mapping from PXA drivers, add a default slave map for pxa architectures. This won't impact MMP architecture, but is aimed only at all PXA boards. This is the first step, and once all drivers are converted, pxad_filter_fn() will be made static, and the DMA resources removed from device.c. Signed-off-by: Robert Jarzmik Reported-by: Arnd Bergmann Acked-by: Vinod Koul --- drivers/dma/pxa_dma.c | 10 +++++++++- include/linux/platform_data/mmp_dma.h | 4 ++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c index b53fb618bbf6..9505334f9c6e 100644 --- a/drivers/dma/pxa_dma.c +++ b/drivers/dma/pxa_dma.c @@ -179,6 +179,8 @@ static unsigned int pxad_drcmr(unsigned int line) return 0x1000 + line * 4; } +bool pxad_filter_fn(struct dma_chan *chan, void *param); + /* * Debug fs */ @@ -1396,9 +1398,10 @@ static int pxad_probe(struct platform_device *op) { struct pxad_device *pdev; const struct of_device_id *of_id; + const struct dma_slave_map *slave_map = NULL; struct mmp_dma_platdata *pdata = dev_get_platdata(&op->dev); struct resource *iores; - int ret, dma_channels = 0, nb_requestors = 0; + int ret, dma_channels = 0, nb_requestors = 0, slave_map_cnt = 0; const enum dma_slave_buswidth widths = DMA_SLAVE_BUSWIDTH_1_BYTE | DMA_SLAVE_BUSWIDTH_2_BYTES | DMA_SLAVE_BUSWIDTH_4_BYTES; @@ -1429,6 +1432,8 @@ static int pxad_probe(struct platform_device *op) } else if (pdata && pdata->dma_channels) { dma_channels = pdata->dma_channels; nb_requestors = pdata->nb_requestors; + slave_map = pdata->slave_map; + slave_map_cnt = pdata->slave_map_cnt; } else { dma_channels = 32; /* default 32 channel */ } @@ -1440,6 +1445,9 @@ static int pxad_probe(struct platform_device *op) pdev->slave.device_prep_dma_memcpy = pxad_prep_memcpy; pdev->slave.device_prep_slave_sg = pxad_prep_slave_sg; pdev->slave.device_prep_dma_cyclic = pxad_prep_dma_cyclic; + pdev->slave.filter.map = slave_map; + pdev->slave.filter.mapcnt = slave_map_cnt; + pdev->slave.filter.fn = pxad_filter_fn; pdev->slave.copy_align = PDMA_ALIGNMENT; pdev->slave.src_addr_widths = widths; diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h index d1397c8ed94e..6397b9c8149a 100644 --- a/include/linux/platform_data/mmp_dma.h +++ b/include/linux/platform_data/mmp_dma.h @@ -12,9 +12,13 @@ #ifndef MMP_DMA_H #define MMP_DMA_H +struct dma_slave_map; + struct mmp_dma_platdata { int dma_channels; int nb_requestors; + int slave_map_cnt; + const struct dma_slave_map *slave_map; }; #endif /* MMP_DMA_H */