Hi Laurent,
On 12/02/17 23:17, Laurent Pinchart wrote:
> The WPF U/V order bit has no effect for 3-planar formats on Gen3
> hardware. Swap the U and V planes manually instead in that case.
Nice effective solution.
> Fixes: b915bd24a034 ("[media] v4l: vsp1: Add tri-planar memory formats support")
> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
> ---
> drivers/media/platform/vsp1/vsp1_wpf.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> This makes the vsp-unit-test-0002.sh test pass on both H2 and H3.
>
> diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c b/drivers/media/platform/vsp1/vsp1_wpf.c
> index 7c48f81cd5c1..052a83e2d489 100644
> --- a/drivers/media/platform/vsp1/vsp1_wpf.c
> +++ b/drivers/media/platform/vsp1/vsp1_wpf.c
> @@ -216,6 +216,7 @@ static void wpf_configure(struct vsp1_entity *entity,
>
> if (params == VSP1_ENTITY_PARAMS_PARTITION) {
> const struct v4l2_pix_format_mplane *format = &wpf->format;
> + const struct vsp1_format_info *fmtinfo = wpf->fmtinfo;
> struct vsp1_rwpf_memory mem = wpf->mem;
> unsigned int flip = wpf->flip.active;
> unsigned int width = source_format->width;
> @@ -281,6 +282,14 @@ static void wpf_configure(struct vsp1_entity *entity,
> }
> }
>
> + /*
> + * On Gen3 hardware the SPUVS bit has no effect on 3-planar
> + * formats. Swap the U and V planes manually in that case.
> + */
> + if (vsp1->info->gen == 3 && format->num_planes == 3 &&
> + fmtinfo->swap_uv)
> + swap(mem.addr[1], mem.addr[2]);
> +
> vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_Y, mem.addr[0]);
> vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C0, mem.addr[1]);
> vsp1_wpf_write(wpf, dl, VI6_WPF_DSTM_ADDR_C1, mem.addr[2]);
>
