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path: root/drivers/gpu/drm/drm_of.c
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Diffstat (limited to 'drivers/gpu/drm/drm_of.c')
-rw-r--r--drivers/gpu/drm/drm_of.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 4c191c050e7d..7a36934ea5db 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -262,3 +262,36 @@ int drm_of_find_panel_or_bridge(const struct device_node *np,
return ret;
}
EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge);
+
+#ifdef CONFIG_DRM_PANEL_BRIDGE
+/*
+ * drm_of_panel_bridge_remove - remove panel bridge
+ * @np: device tree node containing panel bridge output ports
+ *
+ * Remove the panel bridge of a given DT node's port and endpoint number
+ *
+ * Returns zero if successful, or one of the standard error codes if it fails.
+ */
+int drm_of_panel_bridge_remove(const struct device_node *np,
+ int port, int endpoint)
+{
+ struct drm_bridge *bridge;
+ struct device_node *remote;
+
+ remote = of_graph_get_remote_node(np, port, endpoint);
+ if (!remote)
+ return -ENODEV;
+
+ bridge = of_drm_find_bridge(remote);
+ drm_panel_bridge_remove(bridge);
+
+ return 0;
+}
+#else
+int drm_of_panel_bridge_remove(const struct device_node *np,
+ int port, int endpoint)
+{
+ return -EINVAL;
+}
+#endif
+EXPORT_SYMBOL_GPL(drm_of_panel_bridge_remove);

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