This patch add checks for atomic_[duplicate/destroy]_state of
drm_[connector/crtc/plane]_funcs for atomic drivers in the relevant
drm_*_init functions since these callback are mandatory for atomic drivers.
Update the kerneldoc comments for those callbacks.
Signed-off-by: Haneen Mohammed <hamohammed.sa@xxxxxxxxx>
---
drivers/gpu/drm/drm_connector.c | 4 ++++
drivers/gpu/drm/drm_crtc.c | 4 ++++
drivers/gpu/drm/drm_plane.c | 4 ++++
include/drm/drm_connector.h | 4 ++++
include/drm/drm_crtc.h | 4 ++++
include/drm/drm_plane.h | 4 ++++
6 files changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index b3cde897cd80..ab291f4f339a 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -195,6 +195,10 @@ int drm_connector_init(struct drm_device *dev,
struct ida *connector_ida =
&drm_connector_enum_list[connector_type].ida;
+ WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
+ (!funcs->atomic_destroy_state ||
+ !funcs->atomic_duplicate_state));
+
ret = __drm_mode_object_add(dev, &connector->base,
DRM_MODE_OBJECT_CONNECTOR,
false, drm_connector_free);
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 03583887cfec..d1933c5f2524 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -286,6 +286,10 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
if (WARN_ON(config->num_crtc >= 32))
return -EINVAL;
+ WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
+ (!funcs->atomic_destroy_state ||
+ !funcs->atomic_duplicate_state));
+
crtc->dev = dev;
crtc->funcs = funcs;
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 6d2a6e428a3e..e0efb06eec31 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -177,6 +177,10 @@ int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
if (WARN_ON(config->num_total_plane >= 32))
return -EINVAL;
+ WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
+ (!funcs->atomic_destroy_state ||
+ !funcs->atomic_duplicate_state));
+
ret = drm_mode_object_add(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
if (ret)
return ret;
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 675cc3f8cf85..65b6c86ecd50 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -608,6 +608,8 @@ struct drm_connector_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
+ * This callback is mandatory for atomic drivers.
+ *
* Atomic drivers which don't subclass &struct drm_connector_state should use
* drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@@ -634,6 +636,8 @@ struct drm_connector_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
+ *
+ * This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_connector *connector,
struct drm_connector_state *state);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index a2d81d2907a9..26511d6775d7 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -503,6 +503,8 @@ struct drm_crtc_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
+ * This callback is mandatory for atomic drivers.
+ *
* Atomic drivers which don't subclass &struct drm_crtc_state should use
* drm_atomic_helper_crtc_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@@ -529,6 +531,8 @@ struct drm_crtc_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
+ *
+ * This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_crtc *crtc,
struct drm_crtc_state *state);
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index f7bf4a48b1c3..d6d68b466649 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -277,6 +277,8 @@ struct drm_plane_funcs {
* cleaned up by calling the @atomic_destroy_state hook in this
* structure.
*
+ * This callback is mandatory for atomic drivers.
+ *
* Atomic drivers which don't subclass &struct drm_plane_state should use
* drm_atomic_helper_plane_duplicate_state(). Drivers that subclass the
* state structure to extend it with driver-private state should use
@@ -303,6 +305,8 @@ struct drm_plane_funcs {
*
* Destroy a state duplicated with @atomic_duplicate_state and release
* or unreference all resources it references
+ *
+ * This callback is mandatory for atomic drivers.
*/
void (*atomic_destroy_state)(struct drm_plane *plane,
struct drm_plane_state *state);
--
2.17.0
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