[PATCH 2/2] [media] vb2: Add support for capture_dma_bidirectional queue flag

From: Pawel Osciak When this flag is set for CAPTURE queues by the driver on calling vb2_queue_init(), it forces the buffers on the queue to be allocated/mapped with DMA_BIDIRECTIONAL direction flag, instead of DMA_FROM_DEVICE. This allows the device not only to write to

[PATCH 2/2] [media] vb2: Add support for capture_dma_bidirectional queue flag

From: Pawel Osciak When this flag is set for CAPTURE queues by the driver on calling vb2_queue_init(), it forces the buffers on the queue to be allocated/mapped with DMA_BIDIRECTIONAL direction flag, instead of DMA_FROM_DEVICE. This allows the device not only to write to the buffers, but also