Cortina Systems Gemini pin controller This pin controller is found in the Cortina Systems Gemini SoC family, see further arm/gemini.txt. It is a purely group-based multiplexing pin controller. The pin controller node must be a subnode of the system controller node. Required properties: - compatible: "cortina,gemini-pinctrl" Subnodes of the pin controller contain pin control multiplexing set-up and pin configuration of individual pins. Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes and generic pin config nodes. Supported configurations: - skew-delay is supported on the Ethernet pins - drive-strength with 4, 8, 12 or 16 mA as argument is supported for entire groups on the groups "idegrp", "gmii_gmac0_grp", "gmii_gmac1_grp" and "pcigrp". Example: syscon { compatible = "cortina,gemini-syscon"; ... pinctrl { compatible = "cortina,gemini-pinctrl"; pinctrl-names = "default"; pinctrl-0 = <&dram_default_pins>, <&system_default_pins>, <&vcontrol_default_pins>; dram_default_pins: pinctrl-dram { mux { function = "dram"; groups = "dramgrp"; }; }; rtc_default_pins: pinctrl-rtc { mux { function = "rtc"; groups = "rtcgrp"; }; }; power_default_pins: pinctrl-power { mux { function = "power"; groups = "powergrp"; }; }; system_default_pins: pinctrl-system { mux { function = "system"; groups = "systemgrp"; }; }; (...) uart_default_pins: pinctrl-uart { mux { function = "uart"; groups = "uartrxtxgrp"; }; }; }; };