Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt

   1 Cortina Systems Gemini pin controller
   2
   3 This pin controller is found in the Cortina Systems Gemini SoC family,
   4 see further arm/gemini.txt. It is a purely group-based multiplexing pin
   5 controller.
   6
   7 The pin controller node must be a subnode of the system controller node.
   8
   9 Required properties:
  10 - compatible: "cortina,gemini-pinctrl"
  11
  12 Subnodes of the pin controller contain pin control multiplexing set-up.
  13 Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes.
  14
  15 Example:
  16
  17
  18 syscon {
  19         compatible = "cortina,gemini-syscon";
  20         ...
  21         pinctrl {
  22                 compatible = "cortina,gemini-pinctrl";
  23                 pinctrl-names = "default";
  24                 pinctrl-0 = <&dram_default_pins>, <&system_default_pins>,
  25                     <&vcontrol_default_pins>;
  26
  27                 dram_default_pins: pinctrl-dram {
  28                         mux {
  29                                 function = "dram";
  30                                 groups = "dramgrp";
  31                         };
  32                 };
  33                 rtc_default_pins: pinctrl-rtc {
  34                         mux {
  35                                 function = "rtc";
  36                                 groups = "rtcgrp";
  37                         };
  38                 };
  39                 power_default_pins: pinctrl-power {
  40                         mux {
  41                                 function = "power";
  42                                 groups = "powergrp";
  43                         };
  44                 };
  45                 system_default_pins: pinctrl-system {
  46                         mux {
  47                                 function = "system";
  48                                 groups = "systemgrp";
  49                         };
  50                 };
  51                 (...)
  52                 uart_default_pins: pinctrl-uart {
  53                         mux {
  54                                 function = "uart";
  55                                 groups = "uartrxtxgrp";
  56                         };
  57                 };
  58         };
  59 };