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1* Pin configuration for TI DA850/OMAP-L138/AM18x2 3These SoCs have a separate controller for setting bias (internal pullup/down).4Bias can only be selected for groups rather than individual pins.5 6Required Properties:7 8 - compatible: Must be "ti,da850-pupd"9 - reg: Base address and length of the memory resource used by the pullup/down10 controller hardware module.11 12The controller node also acts as a container for pin group configuration nodes.13The names of these groups are ignored.14 15Pin Group Node Properties:16 17- groups: An array of strings, each string containing the name of a pin group.18 Valid names are "cp0".."cp31".19 20The pin configuration parameters use the generic pinconf bindings defined in21pinctrl-bindings.txt in this directory. The supported parameters are22bias-disable, bias-pull-up, bias-pull-down.23 24 25Example26-------27 28In common dtsi file:29 30 pinconf: pin-controller@22c00c {31 compatible = "ti,da850-pupd";32 reg = <0x22c00c 0x8>;33 };34 35In board-specific file:36 37 &pinconf {38 pinctrl-0 = <&pinconf_bias_groups>;39 pinctrl-names = "default";40 41 pinconf_bias_groups: bias-groups {42 pull-up {43 groups = "cp30", "cp31";44 bias-pull-up;45 };46 pull-down {47 groups = "cp29", "cp28";48 bias-pull-down;49 };50 disable {51 groups = "cp27", "cp26";52 bias-disable;53 };54 };55 };56