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alistair23-linux/Documentation/devicetree/bindings/rtc/pcf8563.txt

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* Philips PCF8563/Epson RTC8564 Real Time Clock
Philips PCF8563/Epson RTC8564 Real Time Clock
Required properties:
see: Documentation/devicetree/bindings/i2c/trivial-admin-guide/devices.rst
Optional property:
- #clock-cells: Should be 0.
- clock-output-names:
overwrite the default clock name "pcf8563-clkout"
Example:
pcf8563: pcf8563@51 {
compatible = "nxp,pcf8563";
reg = <0x51>;
#clock-cells = <0>;
};
device {
...
clocks = <&pcf8563>;
...
};