From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934211AbcJSOND (ORCPT ); Wed, 19 Oct 2016 10:13:03 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:60058 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933718AbcJSONA (ORCPT ); Wed, 19 Oct 2016 10:13:00 -0400 From: Thierry Escande To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Pawel Osciak , Marek Szyprowski , Kyungmin Park Subject: [PATCH 0/2] [media] DMA direction support in vb2_queue Date: Wed, 19 Oct 2016 10:24:15 +0200 Message-Id: <1476865457-506-1-git-send-email-thierry.escande@collabora.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset = "utf-8" Content-Transfert-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This series adds a dma_dir field to the vb2_queue structure in order to store the DMA direction once for all in vb2_queue_init(); It also adds a new capture_dma_bidirectional flag to the vb2_queue structure allowing the hardware to read from the CAPTURE buffer. This flag is ignored for OUTPUT queues. This is used on ChromeOS by the rockchip-vpu driver. Changes since v1: - Renamed use_dma_bidirectional field as capture_dma_bidirectional - Added a VB2_DMA_DIR() macro Pawel Osciak (2): [media] vb2: Store dma_dir in vb2_queue [media] vb2: Add support for capture_dma_bidirectional queue flag drivers/media/v4l2-core/videobuf2-core.c | 12 +++--------- drivers/media/v4l2-core/videobuf2-v4l2.c | 6 ++++++ include/media/videobuf2-core.h | 6 ++++++ 3 files changed, 15 insertions(+), 9 deletions(-) -- 2.7.4