linux-kernel - [PATCH 0/2] [media] DMA direction support in vb2

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Message-Id: <1476446894-4220-1-git-send-email-thierry.escande@collabora.com>
Date:   Fri, 14 Oct 2016 14:08:12 +0200
From:   Thierry Escande <thierry.escande@...labora.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Pawel Osciak <pawel@...iak.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>
Subject: [PATCH 0/2] [media] DMA direction support in vb2_queue

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 use_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.

Pawel Osciak (2):
  [media] vb2: Store dma_dir in vb2_queue
  [media] vb2: Add support for use_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