48c926cd34
Improve the binding example by removing all the leading zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"` Some unnecessary changes were manually fixed. Signed-off-by: Marco Franchi <marco.franchi@nxp.com> Signed-off-by: Rob Herring <robh@kernel.org>
28 lines
840 B
Plaintext
28 lines
840 B
Plaintext
* sun6i Real Time Clock
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RTC controller for the Allwinner A31
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Required properties:
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- compatible : Should be "allwinner,sun6i-a31-rtc"
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- reg : physical base address of the controller and length of
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memory mapped region.
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- interrupts : IRQ lines for the RTC alarm 0 and alarm 1, in that order.
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Required properties for new device trees
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- clocks : phandle to the 32kHz external oscillator
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- clock-output-names : names of the LOSC and its external output clocks created
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- #clock-cells : must be equals to 1. The RTC provides two clocks: the
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LOSC and its external output, with index 0 and 1
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respectively.
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Example:
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rtc: rtc@1f00000 {
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compatible = "allwinner,sun6i-a31-rtc";
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reg = <0x01f00000 0x54>;
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interrupts = <0 40 4>, <0 41 4>;
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clock-output-names = "osc32k", "osc32k-out";
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clocks = <&ext_osc32k>;
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#clock-cells = <1>;
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};
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