From 0c3a14c177aa85afb991e7c2be3921aa9a52a893 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 18 Nov 2014 09:51:01 -0300 Subject: [media] vb2-dma-sg: add allocation context to dma-sg Require that dma-sg also uses an allocation context. This is in preparation for adding prepare/finish memops to sync the memory between DMA and CPU. Signed-off-by: Hans Verkuil Acked-by: Pawel Osciak Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/marvell-ccic/mcam-core.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/media/platform/marvell-ccic/mcam-core.c') diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c index f0eeb6cd262c..c3ff5388aeb3 100644 --- a/drivers/media/platform/marvell-ccic/mcam-core.c +++ b/drivers/media/platform/marvell-ccic/mcam-core.c @@ -1079,6 +1079,8 @@ static int mcam_vb_queue_setup(struct vb2_queue *vq, *nbufs = minbufs; if (cam->buffer_mode == B_DMA_contig) alloc_ctxs[0] = cam->vb_alloc_ctx; + else if (cam->buffer_mode == B_DMA_sg) + alloc_ctxs[0] = cam->vb_alloc_ctx_sg; return 0; } @@ -1286,10 +1288,12 @@ static int mcam_setup_vb2(struct mcam_camera *cam) vq->ops = &mcam_vb2_ops; vq->mem_ops = &vb2_dma_contig_memops; vq->buf_struct_size = sizeof(struct mcam_vb_buffer); - cam->vb_alloc_ctx = vb2_dma_contig_init_ctx(cam->dev); vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_contig; cam->frame_complete = mcam_dma_contig_done; + cam->vb_alloc_ctx = vb2_dma_contig_init_ctx(cam->dev); + if (IS_ERR(cam->vb_alloc_ctx)) + return PTR_ERR(cam->vb_alloc_ctx); #endif break; case B_DMA_sg: @@ -1300,6 +1304,9 @@ static int mcam_setup_vb2(struct mcam_camera *cam) vq->io_modes = VB2_MMAP | VB2_USERPTR; cam->dma_setup = mcam_ctlr_dma_sg; cam->frame_complete = mcam_dma_sg_done; + cam->vb_alloc_ctx_sg = vb2_dma_sg_init_ctx(cam->dev); + if (IS_ERR(cam->vb_alloc_ctx_sg)) + return PTR_ERR(cam->vb_alloc_ctx_sg); #endif break; case B_vmalloc: @@ -1325,6 +1332,10 @@ static void mcam_cleanup_vb2(struct mcam_camera *cam) if (cam->buffer_mode == B_DMA_contig) vb2_dma_contig_cleanup_ctx(cam->vb_alloc_ctx); #endif +#ifdef MCAM_MODE_DMA_SG + if (cam->buffer_mode == B_DMA_sg) + vb2_dma_sg_cleanup_ctx(cam->vb_alloc_ctx_sg); +#endif } -- cgit v1.2.1