290e44bada
The SCU Key controller can be used as a system wakeup source. Document the 'wakeup-source' property. This fixes the following schema warning: system-controller: keys: 'wakeup-source' does not match any of the regexes: 'pinctrl-[0-9]+' from schema $id: http://devicetree.org/schemas/firmware/fsl,scu.yaml# Signed-off-by: Fabio Estevam <festevam@denx.de> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230926122957.341094-1-festevam@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>