Kernel-4.18.0-80.el8_nxp,sc16is7xx

• NXP SC16IS7xx advanced Universal Asynchronous Receiver-Transmitter (UART)
• i2c as bus

Required properties:

• compatible: Should be one of the following:
  • “nxp,sc16is740” for NXP SC16IS740,
  • “nxp,sc16is741” for NXP SC16IS741,
  • “nxp,sc16is750” for NXP SC16IS750,
  • “nxp,sc16is752” for NXP SC16IS752,
  • “nxp,sc16is760” for NXP SC16IS760,
  • “nxp,sc16is762” for NXP SC16IS762.
• reg: I2C address of the SC16IS7xx device.
• interrupt-parent: The phandle for the interrupt controller that
  services interrupts for this IC.
• interrupts: Should contain the UART interrupt
• clocks: Reference to the IC source clock.

Optional properties:

• gpio-controller: Marks the device node as a GPIO controller.
• #gpio-cells: Should be two. The first cell is the GPIO number and
  the second cell is used to specify the GPIO polarity:
  0 = active high,
  1 = active low.

Example:
sc16is750: sc16is750@51 {
compatible = “nxp,sc16is750”;
reg = <0x51>;
clocks = <&clk20m>;
interrupt-parent = <&gpio3>;
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
gpio-controller;
#gpio-cells = <2>;
};

• spi as bus

Required properties:

• compatible: Should be one of the following:
  • “nxp,sc16is740” for NXP SC16IS740,
  • “nxp,sc16is741” for NXP SC16IS741,
  • “nxp,sc16is750” for NXP SC16IS750,
  • “nxp,sc16is752” for NXP SC16IS752,
  • “nxp,sc16is760” for NXP SC16IS760,
  • “nxp,sc16is762” for NXP SC16IS762.
• reg: SPI chip select number.
• interrupt-parent: The phandle for the interrupt controller that
  services interrupts for this IC.
• interrupts: Specifies the interrupt source of the parent interrupt
  controller. The format of the interrupt specifier depends on the
  parent interrupt controller.
• clocks: phandle to the IC source clock.

Optional properties:

• gpio-controller: Marks the device node as a GPIO controller.
• #gpio-cells: Should be two. The first cell is the GPIO number and
  the second cell is used to specify the GPIO polarity:
  0 = active high,
  1 = active low.

Example:
sc16is750: sc16is750@0 {
compatible = “nxp,sc16is750”;
reg = <0>;
clocks = <&clk20m>;
interrupt-parent = <&gpio3>;
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
gpio-controller;
#gpio-cells = <2>;
};