[PATCH v6 2/8] drm: Support per-plane async flip configuration

[André Almeida]

Drivers have different capabilities on what plane types they can or
cannot perform async flips. Create a plane::async_flip field so each
driver can choose which planes they allow doing async flips.

Signed-off-by: André Almeida <andrealm...@igalia.com>
---
 drivers/gpu/drm/drm_atomic_uapi.c | 4 ++--
 include/drm/drm_plane.h           | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_uapi.c 
b/drivers/gpu/drm/drm_atomic_uapi.c
index 2e1d9391febe..ed1af3455477 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -1079,9 +1079,9 @@ int drm_atomic_set_property(struct drm_atomic_state 
*state,
                        break;
                }
 
-               if (async_flip && plane_state->plane->type != 
DRM_PLANE_TYPE_PRIMARY) {
+               if (async_flip && !plane->async_flip) {
                        drm_dbg_atomic(prop->dev,
-                                      "[OBJECT:%d] Only primary planes can be 
changed during async flip\n",
+                                      "[PLANE:%d] does not support async 
flips\n",
                                       obj->id);
                        ret = -EINVAL;
                        break;
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 9507542121fa..0bebc72af5c3 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -786,6 +786,11 @@ struct drm_plane {
         * @kmsg_panic: Used to register a panic notifier for this plane
         */
        struct kmsg_dumper kmsg_panic;
+
+       /**
+        * @async_flip: indicates if a plane can do async flips
+        */
+       bool async_flip;
 };
 
 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
-- 
2.45.2