diff --git a/drivers/gpu/drm/drm_atomic_state_helper.c b/drivers/gpu/drm/drm_atomic_state_helper.c index 9dfb9b6ba392..cfb54fc853ef 100644 --- a/drivers/gpu/drm/drm_atomic_state_helper.c +++ b/drivers/gpu/drm/drm_atomic_state_helper.c @@ -873,6 +873,7 @@ EXPORT_SYMBOL(drm_atomic_helper_bridge_duplicate_state); * @state: bridge state to destroy * * Destroys a bridge state previously created by + * &drm_atomic_helper_bridge_create_state(), * &drm_atomic_helper_bridge_reset() or * &drm_atomic_helper_bridge_duplicate_state(). This helper is meant to be * used as a bridge &drm_bridge_funcs.atomic_destroy_state hook for bridges @@ -917,6 +918,25 @@ EXPORT_SYMBOL(__drm_atomic_helper_bridge_state_init); */ struct drm_bridge_state * drm_atomic_helper_bridge_reset(struct drm_bridge *bridge) +{ + return drm_atomic_helper_bridge_create_state(bridge); +} +EXPORT_SYMBOL(drm_atomic_helper_bridge_reset); + +/** + * drm_atomic_helper_bridge_create_state - default + * &drm_bridge_funcs.atomic_create_state hook for bridges + * @bridge: bridge object + * + * Allocates and initializes pristine @drm_bridge_state. + * + * This is useful for drivers that don't subclass @drm_bridge_state. + * + * RETURNS: + * Pointer to new bridge state, or ERR_PTR on failure. + */ +struct drm_bridge_state * +drm_atomic_helper_bridge_create_state(struct drm_bridge *bridge) { struct drm_bridge_state *bridge_state; @@ -927,4 +947,4 @@ drm_atomic_helper_bridge_reset(struct drm_bridge *bridge) __drm_atomic_helper_bridge_state_init(bridge_state, bridge); return bridge_state; } -EXPORT_SYMBOL(drm_atomic_helper_bridge_reset); +EXPORT_SYMBOL(drm_atomic_helper_bridge_create_state); diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h index cbc760598b9e..68c685ad330f 100644 --- a/include/drm/drm_atomic_state_helper.h +++ b/include/drm/drm_atomic_state_helper.h @@ -105,4 +105,6 @@ void drm_atomic_helper_bridge_destroy_state(struct drm_bridge *bridge, void __drm_atomic_helper_bridge_state_init(struct drm_bridge_state *state, struct drm_bridge *bridge); struct drm_bridge_state * +drm_atomic_helper_bridge_create_state(struct drm_bridge *bridge); +struct drm_bridge_state * drm_atomic_helper_bridge_reset(struct drm_bridge *bridge);