Kernel-4.18.0-80.el8_epson,rx6110

Epson RX6110 Real Time Clock

The Epson RX6110 can be used with SPI or I2C busses. The kind of
bus depends on the SPISEL pin and can not be configured via software.

I2C mode

Required properties:

• compatible: should be: “epson,rx6110”
• reg : the I2C address of the device for I2C

Example:

rtc: rtc@32 {
    compatible = "epson,rx6110"
    reg = <0x32>;
};

SPI mode

Required properties:

• compatible: should be: “epson,rx6110”
• reg: chip select number
• spi-cs-high: RX6110 needs chipselect high
• spi-cpha: RX6110 works with SPI shifted clock phase
• spi-cpol: RX6110 works with SPI inverse clock polarity

Example:

rtc: rtc@3 {
    compatible = "epson,rx6110"
    reg = <3>
    spi-cs-high;
    spi-cpha;
    spi-cpol;
};