1NXP LPC18xx/43xx SCU pin controller Device Tree Bindings 2-------------------------------------------------------- 3 4Required properties: 5- compatible : Should be "nxp,lpc1850-scu" 6- reg : Address and length of the register set for the device 7- clocks : Clock specifier (see clock bindings for details) 8 9The lpc1850-scu driver uses the generic pin multiplexing and generic pin 10configuration documented in pinctrl-bindings.txt. 11 12The following generic nodes are supported: 13 - function 14 - pins 15 - bias-disable 16 - bias-pull-up 17 - bias-pull-down 18 - drive-strength 19 - input-enable 20 - input-disable 21 - input-schmitt-enable 22 - input-schmitt-disable 23 - slew-rate 24 25NXP specific properties: 26 - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller 27 irq number 0 to 7. See example below. 28 29Not all pins support all properties so either refer to the NXP 1850/4350 30user manual or the pin table in the pinctrl-lpc18xx driver for supported 31pin properties. 32 33Example: 34pinctrl: pinctrl@40086000 { 35 compatible = "nxp,lpc1850-scu"; 36 reg = <0x40086000 0x1000>; 37 clocks = <&ccu1 CLK_CPU_SCU>; 38 39 i2c0_pins: i2c0-pins { 40 i2c0_pins_cfg { 41 pins = "i2c0_scl", "i2c0_sda"; 42 function = "i2c0"; 43 input-enable; 44 }; 45 }; 46 47 uart0_pins: uart0-pins { 48 uart0_rx_cfg { 49 pins = "pf_11"; 50 function = "uart0"; 51 bias-disable; 52 input-enable; 53 }; 54 55 uart0_tx_cfg { 56 pins = "pf_10"; 57 function = "uart0"; 58 bias-disable; 59 }; 60 }; 61 62 gpio_joystick_pins: gpio-joystick-pins { 63 gpio_joystick_1_cfg { 64 pins = "p9_0"; 65 function = "gpio"; 66 nxp,gpio-pin-interrupt = <0>; 67 input-enable; 68 bias-disable; 69 }; 70 }; 71}; 72