Hi Paul, On Sat 16 Apr 22, 23:21, Paul Cercueil wrote: > Hi Paul, > > This patch breaks the ingenic-drm driver. > > It calls drm_of_find_panel_or_bridge(np, 0, i, ...) starting for i=0, until > -ENODEV is returned, which does not happen anymore. > > The idea is to probe all the connected panels/bridges, should it be done > differently now? I've sent out a different patch which restores -ENODEV at: https://patchwork.freedesktop.org/patch/481135/ Feel free to try it and reply with tested-by/reviewed-by there. I've also made a proposal in the thread to skip the "child node" mechanism as soon as an of graph is present, which would allow covering more legit cases with -ENODEV (the patch linked above doesn't cover all cases that need -ENODEV). Ideally we'd like to remove the child node mechanism entirely, but it may already be part of a device-tree binding spec. Cheers, Paul -- Paul Kocialkowski, Bootlin Embedded Linux and kernel engineering https://bootlin.com
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