To iterate over all bridges attached to a specific encoder.
Suggested-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Boris Brezillon <boris.brezil...@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,
--
2.21.0
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