To iterate over all bridges attached to a specific encoder.
Suggested-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Boris Brezillon boris.brezillon@collabora.com --- Changes in v2: * New patch --- include/drm/drm_bridge.h | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 8af92f0a9541..cf05b30f2967 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -409,6 +409,17 @@ struct drm_bridge *of_drm_find_bridge(struct device_node *np); int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge, struct drm_bridge *previous);
+/** + * for_each_bridge_in_chain() - Iterate over all bridges present in a chain + * @encoder: the encoder to iterate bridges on + * @bridge: a bridge pointer updated to point to the current bridge at each + * iteration + * + * Iterate over all bridges present in the bridge chain attached to @encoder. + */ +#define drm_for_each_bridge_in_chain(encoder, bridge) \ + list_for_each_entry(bridge, &(encoder)->bridge_chain, chain_node) + struct drm_bridge * drm_bridge_chain_get_next_bridge(struct drm_bridge *bridge); bool drm_bridge_chain_mode_fixup(struct drm_bridge *bridge,