FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/pinctrl/marvell,mvebu-pinctrl.txt

     * Marvell SoC pinctrl core driver for mpp
     
     The pinctrl driver enables Marvell SoCs to configure the multi-purpose pins
     (mpp) to a specific function. For each SoC family there is a SoC specific
     driver using this core driver.
     
     Please refer to pinctrl-bindings.txt in this directory for details of the
     common pinctrl bindings used by client devices, including the meaning of the
     phrase "pin configuration node".
    
    A Marvell SoC pin configuration node is a node of a group of pins which can
    be used for a specific device or function. Each node requires one or more
    mpp pins or group of pins and a mpp function common to all pins.
    
    Required properties for pinctrl driver:
    - compatible: "marvell,<soc>-pinctrl"
      Please refer to each marvell,<soc>-pinctrl.txt binding doc for supported SoCs.
    
    Required properties for pin configuration node:
    - marvell,pins: string array of mpp pins or group of pins to be muxed.
    - marvell,function: string representing a function to mux to for all
        marvell,pins given in this pin configuration node. The function has to be
        common for all marvell,pins. Please refer to marvell,<soc>-pinctrl.txt for
        valid pin/pin group names and available function names for each SoC.
    
    Examples:
    
    uart1: serial@12100 {
            compatible = "ns16550a";
            reg = <0x12100 0x100>;
            reg-shift = <2>;
            interrupts = <7>;
    
            pinctrl-0 = <&pmx_uart1_sw>;
            pinctrl-names = "default";
    };
    
    pinctrl: pinctrl@d0200 {
            compatible = "marvell,dove-pinctrl";
            reg = <0xd0200 0x14>, <0xd0440 0x04>, <0xd802c 0x08>;
    
            pmx_uart1_sw: pmx-uart1-sw {
                    marvell,pins = "mpp_uart1";
                    marvell,function = "uart1";
            };
    };

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