staging: media: imx: vdic: Drop unused prepare_vdi_in_buffers()

This function is unused and unlikely to be used in the near future.
Remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>

diff --git a/drivers/staging/media/imx/imx-media-vdic.c b/drivers/staging/media/imx/imx-media-vdic.c
index 09da4103a8dbedfd02c60804c73a6259f2b3ac8a..86f2b30cb06cb25716bab2b7c722e3ac4c94f3ec 100644 (file)
--- a/drivers/staging/media/imx/imx-media-vdic.c
+++ b/drivers/staging/media/imx/imx-media-vdic.c
@@ -180,60 +180,6 @@ out:
        return ret;
 }
 
-/*
- * This function is currently unused, but will be called when the
- * output/mem2mem device at the IDMAC input pad sends us a new
- * buffer. It kicks off the IDMAC read channels to bring in the
- * buffer fields from memory and begin the conversions.
- */
-static void __maybe_unused prepare_vdi_in_buffers(struct vdic_priv *priv,
-                                                 struct imx_media_buffer *curr)
-{
-       dma_addr_t prev_phys, curr_phys, next_phys;
-       struct imx_media_buffer *prev;
-       struct vb2_buffer *curr_vb, *prev_vb;
-       u32 fs = priv->field_size;
-       u32 is = priv->in_stride;
-
-       /* current input buffer is now previous */
-       priv->prev_in_buf = priv->curr_in_buf;
-       priv->curr_in_buf = curr;
-       prev = priv->prev_in_buf ? priv->prev_in_buf : curr;
-
-       prev_vb = &prev->vbuf.vb2_buf;
-       curr_vb = &curr->vbuf.vb2_buf;
-
-       switch (priv->fieldtype) {
-       case V4L2_FIELD_SEQ_TB:
-       case V4L2_FIELD_SEQ_BT:
-               prev_phys = vb2_dma_contig_plane_dma_addr(prev_vb, 0) + fs;
-               curr_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0);
-               next_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0) + fs;
-               break;
-       case V4L2_FIELD_INTERLACED_TB:
-       case V4L2_FIELD_INTERLACED_BT:
-       case V4L2_FIELD_INTERLACED:
-               prev_phys = vb2_dma_contig_plane_dma_addr(prev_vb, 0) + is;
-               curr_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0);
-               next_phys = vb2_dma_contig_plane_dma_addr(curr_vb, 0) + is;
-               break;
-       default:
-               /*
-                * can't get here, priv->fieldtype can only be one of
-                * the above. This is to quiet smatch errors.
-                */
-               return;
-       }
-
-       ipu_cpmem_set_buffer(priv->vdi_in_ch_p, 0, prev_phys);
-       ipu_cpmem_set_buffer(priv->vdi_in_ch,   0, curr_phys);
-       ipu_cpmem_set_buffer(priv->vdi_in_ch_n, 0, next_phys);
-
-       ipu_idmac_select_buffer(priv->vdi_in_ch_p, 0);
-       ipu_idmac_select_buffer(priv->vdi_in_ch, 0);
-       ipu_idmac_select_buffer(priv->vdi_in_ch_n, 0);
-}
-
 static int setup_vdi_channel(struct vdic_priv *priv,
                             struct ipuv3_channel *channel,
                             dma_addr_t phys0, dma_addr_t phys1)