Kernel-4.18.0-80.el8_nxp,lpc1850-scu

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;
    };
};

};