[PATCH 0/2] [media] DMA direction support in vb2_queue

From: Thierry Escande
Date: Fri Oct 14 2016 - 08:11:22 EST


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

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(-)