Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp3084086pxb; Sun, 29 Aug 2021 13:00:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxdzNzWMQ+O/k9uw2XuYG6GcLyuy7QQH04I6+nmI6yBQlsWN/TtCI6XF2HBCVFr6S2X6cZi X-Received: by 2002:aa7:d3c7:: with SMTP id o7mr19982231edr.288.1630267241460; Sun, 29 Aug 2021 13:00:41 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630267241; cv=none; d=google.com; s=arc-20160816; b=sOdPysv4YIqkcGflE0Y48jN7BJFGDQr2P4KmRrgjgv7I7FBeMrw51EGgAwyW3E61sC DVgHecOGrVHUTS08fQOlhDrvVLh5rfAgTxMpa9nDZbn2Nr3f2cEOaLoR2AgK6VKFUEEo TqE5O1BOZroGoEC48gTUhkU47r/nyDul2gtkzkPWtOUBQQ0GNo2brTqfhcexinLgiUFD 98ja08joHgAe4PkJEqFj8qUWitWwIcwBCgFwuq7OP3se5bV77R4Prno/JqzoirObBwCK +cpYgK6m/CXVsGXNqiLLkkUKBADAGol29+eYOlxUqegpBrIgAYV4mH8z+LWtdKfVh4TJ YD8g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=4AvFAOB6QhBdSAIF+/ASsxKQlBWnYIyeeVQo5uO7ilU=; b=IS2gEwSl6dtZWVTyYxUXg9Z2iQh0tAaSbs1w9+Geqs/4BOl+7NNXOBF6tMN3DC9KOr MtDXnS80cGmlQFbi50aMBJbzojDY0/+pc20vFaVdl/evCDFYhGZEXRz75qQE7u3sHsib AlNunv/+YRcrvbfqs1e41j5Pr9FaJwvHtU0CyriUfLz0kKWpsz08qvBQG6ENyVnrmXMd KKrCD597jKgli7E46oxM7m2Rtvqrrc8Du0hpZkURwPbv3psX7najezFqB5JUg5j38BgS p5awNwtdvTIL770D810lsIeK8OW5EU4IUSQg4T3rmoQuLg9ESoRClqzhdd+saxSZnrTL edUg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id a97si7355450edf.111.2021.08.29.13.00.15; Sun, 29 Aug 2021 13:00:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236018AbhH2T73 (ORCPT + 99 others); Sun, 29 Aug 2021 15:59:29 -0400 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:57111 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235923AbhH2T72 (ORCPT ); Sun, 29 Aug 2021 15:59:28 -0400 Received: (Authenticated sender: contact@artur-rojek.eu) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 184E620006; Sun, 29 Aug 2021 19:58:32 +0000 (UTC) From: Artur Rojek To: Paul Cercueil , Vinod Koul Cc: linux-mips@vger.kernel.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, Artur Rojek Subject: [PATCH] dmaengine: jz4780: Set max number of SGs per burst Date: Sun, 29 Aug 2021 21:58:05 +0200 Message-Id: <20210829195805.148964-1-contact@artur-rojek.eu> X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Total amount of SG list entries executed in a single burst is limited by the number of available DMA descriptors. This information is useful for device drivers utilizing this DMA engine. Signed-off-by: Artur Rojek --- drivers/dma/dma-jz4780.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index ebee94dbd630..96701dedcac8 100644 --- a/drivers/dma/dma-jz4780.c +++ b/drivers/dma/dma-jz4780.c @@ -915,6 +915,7 @@ static int jz4780_dma_probe(struct platform_device *pdev) dd->dst_addr_widths = JZ_DMA_BUSWIDTHS; dd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST; + dd->max_sg_burst = JZ_DMA_MAX_DESC; /* * Enable DMA controller, mark all channels as not programmable. -- 2.33.0