dt-bindings: leds: Optional multi-led unit address

The unit address does not make sense in all cases the multi-led node is
used, e.g. for the upcoming PWM multi-color LED driver.

Signed-off-by: Sven Schwermer <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Pavel Machek <[email protected]>
1 file changed