On Tue, Jul 22, 2025 at 04:41:06PM +0200, Otto Pflüger wrote: > The drm_of_component_probe function is intended to bind all devices in > an OF graph given a set of ports linked using the "ports" property on a > main device node. This means that it should also bind the components > providing these ports, not just the components of other ports connected > to them. In order to do this, it calls drm_of_component_match_add with > a pointer to each port node after checking that its parent node is a > device. > > However, when given a pointer to the port node, the compare_of callback > does not match it with a device node and thus fails to detect that the > node belongs to a component. Fix this by passing a pointer to the parent > node here too. > > Currently only the Unisoc platform driver relies on this feature, which > was previously broken and is fixed by this change. On other platforms, > the "ports" property points to ports that are not part of a component, > i.e. the components only have indirect connections to the main node. > > Signed-off-by: Otto Pflüger <otto.pflue...@abscue.de>
Should this get a Fixes tag? Maxime
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