linux/Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt
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   1* Marvell SoC pinctrl core driver for mpp
   2
   3The pinctrl driver enables Marvell SoCs to configure the multi-purpose pins
   4(mpp) to a specific function. For each SoC family there is a SoC specific
   5driver using this core driver.
   6
   7Please refer to pinctrl-bindings.txt in this directory for details of the
   8common pinctrl bindings used by client devices, including the meaning of the
   9phrase "pin configuration node".
  10
  11A Marvell SoC pin configuration node is a node of a group of pins which can
  12be used for a specific device or function. Each node requires one or more
  13mpp pins or group of pins and a mpp function common to all pins.
  14
  15Required properties for pinctrl driver:
  16- compatible: "marvell,<soc>-pinctrl"
  17  Please refer to each marvell,<soc>-pinctrl.txt binding doc for supported SoCs.
  18
  19Required properties for pin configuration node:
  20- marvell,pins: string array of mpp pins or group of pins to be muxed.
  21- marvell,function: string representing a function to mux to for all
  22    marvell,pins given in this pin configuration node. The function has to be
  23    common for all marvell,pins. Please refer to marvell,<soc>-pinctrl.txt for
  24    valid pin/pin group names and available function names for each SoC.
  25
  26Examples:
  27
  28uart1: serial@12100 {
  29        compatible = "ns16550a";
  30        reg = <0x12100 0x100>;
  31        reg-shift = <2>;
  32        interrupts = <7>;
  33
  34        pinctrl-0 = <&pmx_uart1_sw>;
  35        pinctrl-names = "default";
  36};
  37
  38pinctrl: pinctrl@d0200 {
  39        compatible = "marvell,dove-pinctrl";
  40        reg = <0xd0200 0x20>;
  41
  42        pmx_uart1_sw: pmx-uart1-sw {
  43                marvell,pins = "mpp_uart1";
  44                marvell,function = "uart1";
  45        };
  46};
  47