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rtc: pcf8563: add CLKOUT to common clock framework

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Add the clkout output clk to the common clock framework.
Disable the CLKOUT of the RTC after power-up.
After power-up/reset of the RTC, CLKOUT is enabled by default,
with CLKOUT enabled the RTC chip has 2-3 times higher power
consumption.

Signed-off-by: Heiko Schocher <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
This commit is contained in:
Heiko Schocher 2015-10-16 13:31:29 +02:00 • committed by Alexandre Belloni
commit a39a6405d5
2 changed files with 194 additions and 1 deletions
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25
Documentation/devicetree/bindings/rtc/pcf8563.txt Normal file
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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>;
...
};