diff options
Diffstat (limited to 'drivers/media/platform/rockchip/rga/rga-buf.c')
| -rw-r--r-- | drivers/media/platform/rockchip/rga/rga-buf.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/media/platform/rockchip/rga/rga-buf.c b/drivers/media/platform/rockchip/rga/rga-buf.c index ff36efade060..d6774a844d9b 100644 --- a/drivers/media/platform/rockchip/rga/rga-buf.c +++ b/drivers/media/platform/rockchip/rga/rga-buf.c @@ -74,6 +74,18 @@ static int rga_buf_init(struct vb2_buffer *vb) return 0; } +static int get_plane_offset(struct rga_frame *f, int plane) +{ + if (plane == 0) + return 0; + if (plane == 1) + return f->width * f->height; + if (plane == 2) + return f->width * f->height + (f->width * f->height / f->fmt->uv_factor); + + return -EINVAL; +} + static int rga_buf_prepare(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); @@ -89,6 +101,10 @@ static int rga_buf_prepare(struct vb2_buffer *vb) /* Create local MMU table for RGA */ fill_descriptors(rbuf->dma_desc, vb2_dma_sg_plane_desc(vb, 0)); + rbuf->offset.y_off = get_plane_offset(f, 0); + rbuf->offset.u_off = get_plane_offset(f, 1); + rbuf->offset.v_off = get_plane_offset(f, 2); + return 0; } |