From patchwork Wed Jan 29 15:36:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 11356379 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A078714E3 for ; Wed, 29 Jan 2020 15:36:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F3C1207FD for ; Wed, 29 Jan 2020 15:36:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="kp+98DtP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726817AbgA2Pgz (ORCPT ); Wed, 29 Jan 2020 10:36:55 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:48567 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726643AbgA2Pgx (ORCPT ); Wed, 29 Jan 2020 10:36:53 -0500 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00TFNArl019435; Wed, 29 Jan 2020 16:36:38 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=Z1Wgoe4EswiTX75HahUI/4xIRqX8EIbIqY4iMdzt30U=; b=kp+98DtPH1Friws1CwEvSRQyk2c1hlXw0nVpOQn5cOXcx7J6AO0IbqocKcB+JAChEQYN t7svnnRIBxYsy4QE5PwIhOko8c7k+AzzL1MQGV498SnjhA9qwAczFgM9q1bjuev7c3Yc HrLlvW1mlT7QerkxSPepzgSPfQ4uYIFreO5Tl/SlZOFJIjqSGCwGYiMT/3ND9ohBvh3x Zmv4P0bJT4cMfkP2NBugH1NVJEqMgdH13jszczY+A6huqs5ld5C3FeuKeV2l8Nv7HXGD 4zbTAAT4eCI0pGimrJkki734FX06CabcYqgSI2AiLtvpxpucFaenSKgG4tQvtTGzhBX2 pQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2xrcay3vb9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 29 Jan 2020 16:36:38 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3F8D7100034; Wed, 29 Jan 2020 16:36:38 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 32EC52BC7C2; Wed, 29 Jan 2020 16:36:38 +0100 (CET) Received: from localhost (10.75.127.46) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Wed, 29 Jan 2020 16:36:37 +0100 From: Amelie Delaunay To: Vinod Koul , Dan Williams , Maxime Coquelin , Alexandre Torgue CC: , , , , Amelie Delaunay , Pierre-Yves MORDRET Subject: [PATCH 6/8] dmaengine: stm32-dma: add copy_align constraint Date: Wed, 29 Jan 2020 16:36:26 +0100 Message-ID: <20200129153628.29329-7-amelie.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200129153628.29329-1-amelie.delaunay@st.com> References: <20200129153628.29329-1-amelie.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.46] X-ClientProxiedBy: SFHDAG1NODE3.st.com (10.75.127.3) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-29_03:2020-01-28,2020-01-29 signatures=0 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org This patch adds copy_align property in accordance with hardware restriction. Signed-off-by: Ludovic Barre Signed-off-by: Amelie Delaunay --- drivers/dma/stm32-dma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c index b7e18cfcd439..01a2374ae03a 100644 --- a/drivers/dma/stm32-dma.c +++ b/drivers/dma/stm32-dma.c @@ -1345,6 +1345,7 @@ static int stm32_dma_probe(struct platform_device *pdev) BIT(DMA_SLAVE_BUSWIDTH_4_BYTES); dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; + dd->copy_align = DMAENGINE_ALIGN_32_BYTES; dd->max_burst = STM32_DMA_MAX_BURST; dd->descriptor_reuse = true; dd->dev = &pdev->dev;