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 0x14>, <0xd0440 0x04>, <0xd802c 0x08>; 41 42 pmx_uart1_sw: pmx-uart1-sw { 43 marvell,pins = "mpp_uart1"; 44 marvell,function = "uart1"; 45 }; 46}; 47