Re: [PATCH] Expose the OMAP Z-Order property through DRM

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On Tue, Aug 7, 2012 at 9:11 PM, Andre Renaud <andre@xxxxxxxxxxxxxxxx> wrote:
> Added support for zorder changes through DRM plane properties
>
> Signed-off-by: Andre Renaud <andre@xxxxxxxxxxxxxxxx>

Signed-off-by: Rob Clark <rob.clark@xxxxxxxxxx>

> ---
>  drivers/staging/omapdrm/omap_drv.h   |    1 +
>  drivers/staging/omapdrm/omap_plane.c |   19 +++++++++++++++++++
>  2 files changed, 20 insertions(+)
>
> diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h
> index 799dd46..14d67de 100644
> --- a/drivers/staging/omapdrm/omap_drv.h
> +++ b/drivers/staging/omapdrm/omap_drv.h
> @@ -62,6 +62,7 @@ struct omap_drm_private {
>
>         /* properties: */
>         struct drm_property *rotation_prop;
> +       struct drm_property *zorder_prop;
>  };
>
>  /* this should probably be in drm-core to standardize amongst drivers */
> diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c
> index 6931d06..4bde639 100644
> --- a/drivers/staging/omapdrm/omap_plane.c
> +++ b/drivers/staging/omapdrm/omap_plane.c
> @@ -433,6 +433,15 @@ void omap_plane_install_properties(struct drm_plane *plane,
>                 priv->rotation_prop = prop;
>         }
>         drm_object_attach_property(obj, prop, 0);
> +
> +        prop = priv->zorder_prop;
> +        if (!prop) {
> +               prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
> +               if (prop == NULL)
> +                       return;
> +               priv->zorder_prop = prop;
> +       }
> +       drm_object_attach_property(obj, prop, 0);
>  }
>
>  int omap_plane_set_property(struct drm_plane *plane,
> @@ -452,6 +461,16 @@ int omap_plane_set_property(struct drm_plane *plane,
>                         ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
>                 else
>                         ret = 0;
> +       } else if (property == priv->zorder_prop) {
> +               struct omap_overlay *ovl = omap_plane->ovl;
> +
> +               DBG("%s: zorder: %d", ovl->name, (uint32_t)val);
> +               omap_plane->info.zorder = val;
> +
> +               if (ovl->is_enabled(ovl))
> +                       ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
> +               else
> +                       ret = 0;
>         }
>
>         return ret;
> --
> 1.7.9.5
>
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