[PATCH v3 2/2] drm: bridge: Add missing headerdocs for older bridge functions

[Archit Taneja <architt@codeaurora.org>]

Add headerdocs for drm_bridge_add, drm_bridge_remove, drm_bridge_attach and
of_drm_find_bridge.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
---
 drivers/gpu/drm/drm_bridge.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index f70e617..ceb8121 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -31,6 +31,11 @@
 static DEFINE_MUTEX(bridge_lock);
 static LIST_HEAD(bridge_list);
 
+/**
+ * drm_bridge_add - add the given bridge to the global bridge list
+ *
+ * @bridge: bridge control structure
+ */
 int drm_bridge_add(struct drm_bridge *bridge)
 {
 	mutex_lock(&bridge_lock);
@@ -41,6 +46,11 @@ int drm_bridge_add(struct drm_bridge *bridge)
 }
 EXPORT_SYMBOL(drm_bridge_add);
 
+/**
+ * drm_bridge_remove - remove the given bridge from the global bridge list
+ *
+ * @bridge: bridge control structure
+ */
 void drm_bridge_remove(struct drm_bridge *bridge)
 {
 	mutex_lock(&bridge_lock);
@@ -49,6 +59,18 @@ void drm_bridge_remove(struct drm_bridge *bridge)
 }
 EXPORT_SYMBOL(drm_bridge_remove);
 
+/**
+ * drm_bridge_attach - associate given bridge to our DRM device
+ *
+ * @dev: DRM device
+ * @bridge: bridge control structure
+ *
+ * called by a kms driver to link one of our encoder/bridge to the given
+ * bridge.
+ *
+ * Note that setting up links between the bridge and our encoder/bridge
+ * objects needs to be handled by the kms driver itself
+ */
 int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge)
 {
 	if (!dev || !bridge)
@@ -211,6 +233,12 @@ void drm_bridge_enable(struct drm_bridge *bridge)
 EXPORT_SYMBOL(drm_bridge_enable);
 
 #ifdef CONFIG_OF
+/**
+ * of_drm_find_bridge - find the bridge corresponding to the device node in
+ *			the global bridge list
+ *
+ * @np: device node
+ */
 struct drm_bridge *of_drm_find_bridge(struct device_node *np)
 {
 	struct drm_bridge *bridge;
-- 
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