drm: add plane properties

The omapdrm driver uses this for setting per-overlay rotation.  It
is likely also useful for setting YUV->RGB colorspace conversion
matrix, etc.

Signed-off-by: Rob Clark <rob@ti.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index e3135c7..92cea9d 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -608,6 +608,7 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
        if (ret)
                goto out;
 
+       plane->base.properties = &plane->properties;
        plane->dev = dev;
        plane->funcs = funcs;
        plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
@@ -3199,6 +3200,21 @@ static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
        return ret;
 }
 
+static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
+                                     struct drm_property *property,
+                                     uint64_t value)
+{
+       int ret = -EINVAL;
+       struct drm_plane *plane = obj_to_plane(obj);
+
+       if (plane->funcs->set_property)
+               ret = plane->funcs->set_property(plane, property, value);
+       if (!ret)
+               drm_object_property_set_value(obj, property, value);
+
+       return ret;
+}
+
 int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
                                      struct drm_file *file_priv)
 {
@@ -3300,6 +3316,9 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
        case DRM_MODE_OBJECT_CRTC:
                ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
                break;
+       case DRM_MODE_OBJECT_PLANE:
+               ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
+               break;
        }
 
 out:

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9b33629..73e4560 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -601,6 +601,7 @@ struct drm_connector {
  * @update_plane: update the plane configuration
  * @disable_plane: shut down the plane
  * @destroy: clean up plane resources
+ * @set_property: called when a property is changed
  */
 struct drm_plane_funcs {
        int (*update_plane)(struct drm_plane *plane,
@@ -611,6 +612,9 @@ struct drm_plane_funcs {
                            uint32_t src_w, uint32_t src_h);
        int (*disable_plane)(struct drm_plane *plane);
        void (*destroy)(struct drm_plane *plane);
+
+       int (*set_property)(struct drm_plane *plane,
+                           struct drm_property *property, uint64_t val);
 };
 
 /**
@@ -628,6 +632,7 @@ struct drm_plane_funcs {
  * @enabled: enabled flag
  * @funcs: helper functions
  * @helper_private: storage for drver layer
+ * @properties: property tracking for this plane
  */
 struct drm_plane {
        struct drm_device *dev;
@@ -650,6 +655,8 @@ struct drm_plane {
 
        const struct drm_plane_funcs *funcs;
        void *helper_private;
+
+       struct drm_object_properties properties;
 };
 
 /**