[PATCHv4 08/13] drm: Add plane type property (v2)

[Matt Roper]

Add a plane type property to allow userspace to distinguish plane types.

v2: Driver-specific churn eliminated now that drm_plane_init() and
    drm_universal_plane_init() were separated out in a previous patch.

Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
 drivers/gpu/drm/drm_crtc.c | 23 +++++++++++++++++++++++
 include/drm/drm_crtc.h     |  1 +
 2 files changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 42aea88..0c70101 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -121,6 +121,13 @@ static const struct drm_prop_enum_list 
drm_dpms_enum_list[] =

 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)

+static const struct drm_prop_enum_list drm_plane_type_enum_list[] =
+{
+       { DRM_PLANE_TYPE_OVERLAY, "Overlay" },
+       { DRM_PLANE_TYPE_PRIMARY, "Primary" },
+       { DRM_PLANE_TYPE_CURSOR, "Cursor" },
+};
+
 /*
  * Optional properties
  */
@@ -1165,6 +1172,21 @@ static int 
drm_mode_create_standard_connector_properties(struct drm_device *dev)
        return 0;
 }

+static int drm_mode_create_standard_plane_properties(struct drm_device *dev)
+{
+       struct drm_property *type;
+
+       /*
+        * Standard properties (apply to all planes)
+        */
+       type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+                                       "type", drm_plane_type_enum_list,
+                                       ARRAY_SIZE(drm_plane_type_enum_list));
+       dev->mode_config.plane_type_property = type;
+
+       return 0;
+}
+
 /**
  * drm_mode_create_dvi_i_properties - create DVI-I specific connector 
properties
  * @dev: DRM device
@@ -4566,6 +4588,7 @@ void drm_mode_config_init(struct drm_device *dev)

        drm_modeset_lock_all(dev);
        drm_mode_create_standard_connector_properties(dev);
+       drm_mode_create_standard_plane_properties(dev);
        drm_modeset_unlock_all(dev);

        /* Just to be sure */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 201d8c2..4c4f792 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -771,6 +771,7 @@ struct drm_mode_config {
        struct list_head property_blob_list;
        struct drm_property *edid_property;
        struct drm_property *dpms_property;
+       struct drm_property *plane_type_property;

        /* DVI-I properties */
        struct drm_property *dvi_i_subconnector_property;
-- 
1.8.5.1