pinctrl-maps

via terminal i entered directory “cat /sys/kernel/debug/pinctrl/pinctrl-maps”. In the reponse there are 2 lines with “config”, what does “config” indicate? is there any documentation that further defines that?

https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/fsl%2Cimx-pinctrl.txt
https://www.kernel.org/doc/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
https://www.kernel.org/doc/Documentation/pinctrl.txt