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NXP LPC18xx/43xx SCU pin controller Device Tree Bindings
--------------------------------------------------------
Required properties:
- compatible : Should be "nxp,lpc1850-scu"
- reg : Address and length of the register set for the device
- clocks : Clock specifier (see clock bindings for details)
The lpc1850-scu driver uses the generic pin multiplexing and generic pin
configuration documented in pinctrl-bindings.txt.
The following generic nodes are supported:
- function
- pins
- bias-disable
- bias-pull-up
- bias-pull-down
- drive-strength
- input-enable
- input-disable
- input-schmitt-enable
- input-schmitt-disable
- slew-rate
NXP specific properties:
- nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller
irq number 0 to 7. See example below.
Not all pins support all properties so either refer to the NXP 1850/4350
user manual or the pin table in the pinctrl-lpc18xx driver for supported
pin properties.
Example:
pinctrl: pinctrl@40086000 {
compatible = "nxp,lpc1850-scu";
reg = <0x40086000 0x1000>;
clocks = <&ccu1 CLK_CPU_SCU>;
i2c0_pins: i2c0-pins {
i2c0_pins_cfg {
pins = "i2c0_scl", "i2c0_sda";
function = "i2c0";
input-enable;
};
};
uart0_pins: uart0-pins {
uart0_rx_cfg {
pins = "pf_11";
function = "uart0";
bias-disable;
input-enable;
};
uart0_tx_cfg {
pins = "pf_10";
function = "uart0";
bias-disable;
};
};
gpio_joystick_pins: gpio-joystick-pins {
gpio_joystick_1_cfg {
pins = "p9_0";
function = "gpio";
nxp,gpio-pin-interrupt = <0>;
input-enable;
bias-disable;
};
};
};
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