drm: add CRTC properties

The i915 driver needs this for the rotation and overscan compensation
properties. Other drivers might need this too.

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

1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 368e3e72a45..a177d0abb8b 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -384,6 +384,8 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
         if (ret)
                 goto out;
 
+        crtc->base.properties = &crtc->properties;
+
         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
         dev->mode_config.num_crtc++;
 
@@ -3141,6 +3143,21 @@ static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
         return ret;
 }
 
+static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
+                                      struct drm_property *property,
+                                      uint64_t value)
+{
+        int ret = -EINVAL;
+        struct drm_crtc *crtc = obj_to_crtc(obj);
+
+        if (crtc->funcs->set_property)
+                ret = crtc->funcs->set_property(crtc, 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)
 {
@@ -3239,6 +3256,9 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
                 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
                                                       arg->value);
                 break;
+        case DRM_MODE_OBJECT_CRTC:
+                ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
+                break;
         }
 
 out: