From: Luca Ceresoli Date: Fri, 6 Jun 2025 08:41:20 +0000 (+0200) Subject: drm/bridge: add a .destroy func X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=85ad3e84105d44d0c67e3139c939e0c1047436aa;p=thirdparty%2Flinux.git drm/bridge: add a .destroy func Some users of DRM bridges may need to execute specific code just before deallocation. As of now the only known user would be KUnit tests. Suggested-by: Maxime Ripard Acked-by: Maxime Ripard Signed-off-by: Luca Ceresoli Link: https://lore.kernel.org/r/20250606-drm-bridge-alloc-doc-test-v9-2-b5bf7b43ed92@bootlin.com Signed-off-by: Maxime Ripard --- diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index d0e81639927a7..bf34cc5ab0316 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -203,6 +203,8 @@ static void __drm_bridge_free(struct kref *kref) { struct drm_bridge *bridge = container_of(kref, struct drm_bridge, refcount); + if (bridge->funcs->destroy) + bridge->funcs->destroy(bridge); kfree(bridge->container); } diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index ecdeb90e55865..7f66f9018c109 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -77,6 +77,16 @@ struct drm_bridge_funcs { int (*attach)(struct drm_bridge *bridge, struct drm_encoder *encoder, enum drm_bridge_attach_flags flags); + /** + * @destroy: + * + * This callback is invoked when the bridge is about to be + * deallocated. + * + * The @destroy callback is optional. + */ + void (*destroy)(struct drm_bridge *bridge); + /** * @detach: *