[PATCH RFC 2/2] drm: add plane properties

[Rob Clark]

From: Rob Clark <r...@ti.com>

The omapdrm driver uses this for setting per-overlay rotation.  It
is likely also useful for setting YUV->RGB colorspace conversion
matrix, etc.
---
 drivers/gpu/drm/drm_crtc.c |   19 +++++++++++++++++++
 include/drm/drm_crtc.h     |    5 +++++
 2 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 2b462f6..b158b72 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -606,6 +606,7 @@ 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,
@@ -3163,6 +3164,21 @@ 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)
 {
@@ -3268,6 +3284,9 @@ 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 28e9a78..b5017c9 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -618,6 +618,9 @@ 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);
 };

 /**
@@ -657,6 +660,8 @@ struct drm_plane {

        const struct drm_plane_funcs *funcs;
        void *helper_private;
+
+       struct drm_object_properties properties;
 };

 /**
-- 
1.7.9.1