Kernel-4.18.0-80.el8_gpio-xlp

Netlogic XLP Family GPIO

This GPIO driver is used for following Netlogic XLP SoCs:
XLP832, XLP316, XLP208, XLP980, XLP532
This GPIO driver is also compatible with GPIO controller found on
Broadcom Vulcan ARM64.

Required properties:

• compatible: Should be one of the following:
  • “netlogic,xlp832-gpio”: For Netlogic XLP832
  • “netlogic,xlp316-gpio”: For Netlogic XLP316
  • “netlogic,xlp208-gpio”: For Netlogic XLP208
  • “netlogic,xlp980-gpio”: For Netlogic XLP980
  • “netlogic,xlp532-gpio”: For Netlogic XLP532
  • “brcm,vulcan-gpio”: For Broadcom Vulcan ARM64
• reg: Physical base address and length of the controller’s registers.
• #gpio-cells: Should be two. The first cell is the pin number and the second
  cell is used to specify optional parameters (currently unused).
• gpio-controller: Marks the device node as a GPIO controller.
• nr-gpios: Number of GPIO pins supported by the controller.
• interrupt-cells: Should be two. The first cell is the GPIO Number. The
  second cell is used to specify flags. The following subset of flags is
  supported:
  • trigger type:
    1 = low to high edge triggered.
    2 = high to low edge triggered.
    4 = active high level-sensitive.
    8 = active low level-sensitive.
• interrupts: Interrupt number for this device.
• interrupt-parent: phandle of the parent interrupt controller.
• interrupt-controller: Identifies the node as an interrupt controller.

Example:

gpio: xlp_gpio@34000 {
    compatible = "netlogic,xlp316-gpio";
    reg = <0 0x34100 0x1000
           0 0x35100 0x1000>;
    #gpio-cells = <2>;
    gpio-controller;
    nr-gpios = <57>;

    #interrupt-cells = <2>;
    interrupt-parent = <&pic>;
    interrupts = <39>;
    interrupt-controller;
};