Currently, there are two drivers binding to the R-Mobile System
Controller (SYSC):
- The rmobile-sysc driver registers PM domains from a core_initcall(),
and does not use a platform driver,
- The optional rmobile-reset driver registers a reset handler, and
does use a platform driver.
As fw_devlink only considers devices, commit bab2d712ee ("PM:
domains: Mark fwnodes when their powerdomain is added/removed") works
only for PM Domain drivers where the DT node is a real device node, and
not for PM Domain drivers using a hierarchical representation inside a
subnode. Hence if fw_devlink is enabled, probing of on-chip devices
that are part of the SYSC PM domain is deferred until the optional
rmobile-reset driver has been bound. If the rmobile-reset driver is
not available, this will never happen, and thus lead to complete system
boot failures.
Fix this by explicitly marking the fwnode initialized.
Suggested-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210216123958.3180014-1-geert+renesas@glider.be
1d9ffbc6b1