From patchwork Mon Jan 27 08:53:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amelie Delaunay X-Patchwork-Id: 11352231 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 8868313A4 for ; Mon, 27 Jan 2020 08:54:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 66D30214DB for ; Mon, 27 Jan 2020 08:54:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="0RxnEf+P" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728238AbgA0IyU (ORCPT ); Mon, 27 Jan 2020 03:54:20 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:44282 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728449AbgA0IyD (ORCPT ); Mon, 27 Jan 2020 03:54:03 -0500 Received: from pps.filterd (m0046661.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00R8qifV031730; Mon, 27 Jan 2020 09:53:49 +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=jX92yodowvq0X+wN/iB1cefd5N695QA/mW6VRMfU52M=; b=0RxnEf+PDs4l6Jt7vFC9p/9bEgkDAiSE9hDan9ya6sf0WNX8ZeM6Pbi+8v/VdkNuQ/M3 VjOeSDa2wAQN00SlQrvJMSi6dTcG9jrPXyHXJiyqIqs4/YG9CtPp2gC+lXAxzZ7ZR+JB OotVFr9oMWobsOuTB1ZPE7EYPDoSCHekbnANMTrpb9UZGG93Wjs6pT665b5SseeuWGCc Y/oRMbekYFFWpTi9XTRwfsSE6HXRKO95Wd+KvMMEv5lI2qzs1hXzDGCYP90QetjlvjsB aJmjcWoGKU5ZnvKwzHzTDRWf4bMFnDXwWGI5ScYwNs9umfsZoUzB5RmTKWYLcLynQ7Qr cA== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2xrdek7tsf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 27 Jan 2020 09:53:49 +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 7180310002A; Mon, 27 Jan 2020 09:53:45 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 6635321CA6A; Mon, 27 Jan 2020 09:53:45 +0100 (CET) Received: from localhost (10.75.127.47) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 27 Jan 2020 09:53:45 +0100 From: Amelie Delaunay To: Vinod Koul , Dan Williams , Maxime Coquelin , Alexandre Torgue CC: , , , , Amelie Delaunay , Pierre-Yves MORDRET Subject: [PATCH 5/6] dmaengine: stm32-mdma: enable descriptor_reuse Date: Mon, 27 Jan 2020 09:53:33 +0100 Message-ID: <20200127085334.13163-6-amelie.delaunay@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200127085334.13163-1-amelie.delaunay@st.com> References: <20200127085334.13163-1-amelie.delaunay@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.47] 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=2020-01-27_02:2020-01-24,2020-01-27 signatures=0 Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Pierre-Yves MORDRET Enable descriptor reuse to allow client to resubmit already processed descriptors in order to save descriptor creation time. Signed-off-by: Pierre-Yves MORDRET Signed-off-by: Amelie Delaunay --- drivers/dma/stm32-mdma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c index 2dbd1f38a6f5..f2043f47ae9e 100644 --- a/drivers/dma/stm32-mdma.c +++ b/drivers/dma/stm32-mdma.c @@ -1618,6 +1618,8 @@ static int stm32_mdma_probe(struct platform_device *pdev) dd->device_resume = stm32_mdma_resume; dd->device_terminate_all = stm32_mdma_terminate_all; dd->device_synchronize = stm32_mdma_synchronize; + dd->descriptor_reuse = true; + dd->src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) |