[PATCH] drm: renesas: Add zpos, alpha and blend properties to RZ/G2L DU

[Lad, Prabhakar]

On Fri, Apr 4, 2025 at 2:32 PM Biju Das <biju.das.jz at bp.renesas.com> wrote:
>
> Add support for zpos, alpha and blend properties to RZ/G2L DU
> driver as the IP supports all these properties.
>
> It is tested by the below modetest commands:
>
> modetest -M rzg2l-du -s 44 at 42:1920x1080 at AR24 -d -P \
> 37 at 42:512x300+200+200 at XR15
>
> modetest -M rzg2l-du -w {32,37}:alpha:{0,65535}
> modetest -M rzg2l-du -w {32,37}:zpos:{0,1}
>
> Signed-off-by: Biju Das <biju.das.jz at bp.renesas.com>
> ---
>  drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj at bp.renesas.com> #On RZ/V2H

Cheers,
Prabhakar

> diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
> index 8643ff2eec46..040d4e4aff00 100644
> --- a/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
> +++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_du_vsp.c
> @@ -340,6 +340,15 @@ int rzg2l_du_vsp_init(struct rzg2l_du_vsp *vsp, struct device_node *np,
>
>                 drm_plane_helper_add(&plane->plane,
>                                      &rzg2l_du_vsp_plane_helper_funcs);
> +
> +               drm_plane_create_alpha_property(&plane->plane);
> +               drm_plane_create_zpos_property(&plane->plane, i, 0,
> +                                              num_planes - 1);
> +
> +               drm_plane_create_blend_mode_property(&plane->plane,
> +                                       BIT(DRM_MODE_BLEND_PIXEL_NONE) |
> +                                       BIT(DRM_MODE_BLEND_PREMULTI) |
> +                                       BIT(DRM_MODE_BLEND_COVERAGE));
>         }
>
>         return 0;
> --
> 2.43.0
>
>