Commit bab5cca7 authored by Douglas Anderson's avatar Douglas Anderson
Browse files

drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() 



The drm_bridge_chain_pre_enable() is not the proper opposite of
drm_bridge_chain_post_disable(). It continues along the chain to
_before_ the starting bridge. Let's fix that.

Fixes: 05193dc3 ("drm/bridge: Make the bridge chain a double-linked list")
Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Reviewed-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210416153909.v4.1.If62a003f76a2bc4ccc6c53565becc05d2aad4430@changeid
parent a584e2c3

drivers/gpu/drm/drm_bridge.c

+3 −0
Original line number Diff line number Diff line
@@ -522,6 +522,9 @@ void drm_bridge_chain_pre_enable(struct drm_bridge *bridge) 
	list_for_each_entry_reverse(iter, &encoder->bridge_chain, chain_node) {

		if (iter->funcs->pre_enable)

			iter->funcs->pre_enable(iter);



		if (iter == bridge)

			break;

	}

}

EXPORT_SYMBOL(drm_bridge_chain_pre_enable);