Documentation/devicetree/bindings/pinctrl/nxp,lpc1850-scu.txt

   1 NXP LPC18xx/43xx SCU pin controller Device Tree Bindings
   2 --------------------------------------------------------
   3
   4 Required 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
   9 The lpc1850-scu driver uses the generic pin multiplexing and generic pin
  10 configuration documented in pinctrl-bindings.txt.
  11
  12 The 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
  25 NXP specific properties:
  26  - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller
  27                             irq number 0 to 7. See example below.
  28
  29 Not all pins support all properties so either refer to the NXP 1850/4350
  30 user manual or the pin table in the pinctrl-lpc18xx driver for supported
  31 pin properties.
  32
  33 Example:
  34 pinctrl: 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 };