Kernel-3.10.0-957.el7_i2c-pxa

• Marvell MMP I2C controller

Required properties :

• reg : Offset and length of the register set for the device
• compatible : should be “mrvl,mmp-twsi” where mmp is the name of a
  compatible processor, e.g. pxa168, pxa910, mmp2, mmp3.
  For the pxa2xx/pxa3xx, an additional node “mrvl,pxa-i2c” is required
  as shown in the example below.

Recommended properties :

• interrupts : the interrupt number
• interrupt-parent : the phandle for the interrupt controller that
  services interrupts for this device. If the parent is the default
  interrupt controller in device tree, it could be ignored.
• mrvl,i2c-polling : Disable interrupt of i2c controller. Polling
  status register of i2c controller instead.
• mrvl,i2c-fast-mode : Enable fast mode of i2c controller.

Examples:
twsi1: i2c@d4011000 {
compatible = “mrvl,mmp-twsi”;
reg = <0xd4011000 0x1000>;
interrupts = <7>;
mrvl,i2c-fast-mode;
};

twsi2: i2c@d4025000 {
    compatible = "mrvl,mmp-twsi";
    reg = <0xd4025000 0x1000>;
    interrupts = <58>;
};