drm: of: Properly try all possible cases for bridge/panel detection
While bridge/panel detection was initially relying on the usual port/ports-based of graph detection, it was recently changed to perform the lookup on any child node that is not port/ports instead when such a node is available, with no fallback on the usual way. This results in breaking detection when a child node is present but does not contain any panel or bridge node, even when the usual port/ports-based of graph is there. In order to support both situations properly, this commit reworks the logic to try both options and not just one of the two: it will only return -EPROBE_DEFER when both have failed. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Fixes: 80253168 ("drm: of: Lookup if child node has panel or bridge") Signed-off-by: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20220329132732.628474-1-paul.kocialkowski@bootlin.com
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