[PATCHv5 08/14] drm: Add plane type property (v2)

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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@xxxxxxxxx>
---
 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 a7384d7..eb21659 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
@@ -4568,6 +4590,7 @@ 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 fee37b0..45bcfc2 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

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