Kernel-4.18.0-80.el8_renesas,mtu2

• Renesas Multi-Function Timer Pulse Unit 2 (MTU2)

The MTU2 is a multi-purpose, multi-channel timer/counter with configurable
clock inputs and programmable compare match.

Channels share hardware resources but their counter and compare match value
are independent. The MTU2 hardware supports five channels indexed from 0 to 4.

Required Properties:

• compatible: must be one or more of the following:

  • “renesas,mtu2-r7s72100” for the r7s72100 MTU2
  • “renesas,mtu2” for any MTU2
    This is a fallback for the above renesas,mtu2-* entries

• reg: base address and length of the registers block for the timer module.

• interrupts: interrupt specifiers for the timer, one for each entry in
  interrupt-names.

• interrupt-names: must contain one entry named “tgi?a” for each enabled
  channel, where “?” is the channel index expressed as one digit from “0” to
  “4”.

• clocks: a list of phandle + clock-specifier pairs, one for each entry
  in clock-names.

• clock-names: must contain “fck” for the functional clock.

Example: R7S72100 (RZ/A1H) MTU2 node

mtu2: timer@fcff0000 {
    compatible = "renesas,mtu2-r7s72100", "renesas,mtu2";
    reg = <0xfcff0000 0x400>;
    interrupts = <0 139 IRQ_TYPE_LEVEL_HIGH>,
             <0 146 IRQ_TYPE_LEVEL_HIGH>,
             <0 150 IRQ_TYPE_LEVEL_HIGH>,
             <0 154 IRQ_TYPE_LEVEL_HIGH>,
             <0 159 IRQ_TYPE_LEVEL_HIGH>;
    interrupt-names = "tgi0a", "tgi1a", "tgi2a", "tgi3a", "tgi4a";
    clocks = <&mstp3_clks R7S72100_CLK_MTU2>;
    clock-names = "fck";
};