fimc_prepare_addr
fimc_prepare_addr(ctx, &buf->vb.vb2_buf, &ctx->d_frame, &buf->addr);
int fimc_prepare_addr(struct fimc_ctx *ctx, struct vb2_buffer *vb,
ret = fimc_prepare_addr(ctx, &src_vb->vb2_buf, sf, &sf->addr);
ret = fimc_prepare_addr(ctx, &dst_vb->vb2_buf, df, &df->addr);