rtc: pcf8563: add CLKOUT to common clock framework

[karo-tx-linux.git] / Documentation / devicetree / bindings / rtc / pcf8563.txt

diff --git a/Documentation/devicetree/bindings/rtc/pcf8563.txt b/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-devices.txt
+
+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>;
+...
+};