From patchwork Thu Oct 15 01:36:04 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Lin X-Patchwork-Id: 7399651 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E00FDBEEA4 for ; Thu, 15 Oct 2015 01:39:19 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F1638207A8 for ; Thu, 15 Oct 2015 01:39:18 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1E7AE20788 for ; Thu, 15 Oct 2015 01:39:18 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZmXUL-0004Ql-Ub; Thu, 15 Oct 2015 01:37:49 +0000 Received: from lucky1.263xmail.com ([211.157.147.130]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZmXU0-0003UB-T5; Thu, 15 Oct 2015 01:37:30 +0000 Received: from shawn.lin?rock-chips.com (unknown [192.168.167.139]) by lucky1.263xmail.com (Postfix) with SMTP id B13B41E8336; Thu, 15 Oct 2015 09:37:07 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id C880E436; Thu, 15 Oct 2015 09:37:03 +0800 (CST) X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: vinod.koul@intel.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: lintao@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 2564CSOEZW; Thu, 15 Oct 2015 09:37:05 +0800 (CST) From: Shawn Lin To: Vinod Koul , Heiko Stuebner , Jaroslav Kysela , Takashi Iwai , Mark Brown Subject: [PATCH v6 06/10] DMA: dmaengine: expose max burst capability to clients Date: Thu, 15 Oct 2015 09:36:04 +0800 Message-Id: <1444872964-2425-1-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1444872865-2169-1-git-send-email-shawn.lin@rock-chips.com> References: <1444872865-2169-1-git-send-email-shawn.lin@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151014_183729_372044_E56FACA1 X-CRM114-Status: UNSURE ( 7.50 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Addy Ke , Lars-Peter Clausen , alsa-devel@alsa-project.org, Boojin Kim , Shawn Lin , Doug Anderson , linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org, Olof Johansson , linux-rockchip@lists.infradead.org, linux-spi@vger.kernel.org, Sonny Rao , linux-arm-kernel@lists.infradead.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-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch add max_burst to dma_get_slave_caps for clients to get the burst capability of slave dma controller. Signed-off-by: Shawn Lin --- Changes in v6: - remove expose quirk and add dma max_burst caps for clients Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None drivers/dma/dmaengine.c | 1 + include/linux/dmaengine.h | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index 3ecec14..1ccf64b 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -492,6 +492,7 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps) caps->src_addr_widths = device->src_addr_widths; caps->dst_addr_widths = device->dst_addr_widths; caps->directions = device->directions; + caps->max_burst = device->max_burst; caps->residue_granularity = device->residue_granularity; /* diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index 7ea9184..b6bc79e 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -401,6 +401,7 @@ enum dma_residue_granularity { * since the enum dma_transfer_direction is not defined as bits for each * type of direction, the dma controller should fill (1 << ) and same * should be checked by controller as well + * @max_burst: max burst capability per-transfer * @cmd_pause: true, if pause and thereby resume is supported * @cmd_terminate: true, if terminate cmd is supported * @residue_granularity: granularity of the reported transfer residue @@ -411,6 +412,7 @@ struct dma_slave_caps { u32 src_addr_widths; u32 dst_addr_widths; u32 directions; + u32 max_burst; bool cmd_pause; bool cmd_terminate; enum dma_residue_granularity residue_granularity; @@ -627,6 +629,7 @@ enum dmaengine_alignment { * the enum dma_transfer_direction is not defined as bits for * each type of direction, the dma controller should fill (1 << * ) and same should be checked by controller as well + * @max_burst: max burst capability per-transfer * @residue_granularity: granularity of the transfer residue reported * by tx_status * @device_alloc_chan_resources: allocate resources and return the @@ -680,6 +683,7 @@ struct dma_device { u32 src_addr_widths; u32 dst_addr_widths; u32 directions; + u32 max_burst; enum dma_residue_granularity residue_granularity; int (*device_alloc_chan_resources)(struct dma_chan *chan);