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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2017-09-27 16:03:43 +0200
committerRob Herring <robh@kernel.org>2017-10-05 17:26:55 -0500
commit13a5595892ca3cf99625085aaee4c2cb2e6dd5a5 (patch)
treee69396a1e18304991cf3357cce3a2313acac25b8 /Documentation/devicetree/bindings/rtc
parent0fc52ca54aa1f6ad8a38efea2f4b072150280008 (diff)
dt-bindings: rtc: DS1307 and compatibles are not trivial
Document optional properties for ds1307 and compatible RTCs Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/rtc')
-rw-r--r--Documentation/devicetree/bindings/rtc/rtc-ds1307.txt36
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diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
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+++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
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+Dallas DS1307 and compatible RTC
+
+Required properties:
+- compatible: should be one of:
+ "dallas,ds1307",
+ "dallas,ds1308",
+ "dallas,ds1337",
+ "dallas,ds1338",
+ "dallas,ds1339",
+ "dallas,ds1388",
+ "dallas,ds1340",
+ "dallas,ds1341",
+ "maxim,ds3231",
+ "st,m41t0",
+ "st,m41t00",
+ "microchip,mcp7940x",
+ "microchip,mcp7941x",
+ "pericom,pt7c4338",
+ "epson,rx8025",
+ "isil,isl12057"
+- reg: I2C bus address of the device
+
+Optional properties:
+- interrupt-parent: phandle for the interrupt controller.
+- interrupts: rtc alarm interrupt.
+- clock-output-names: From common clock binding to override the default output
+ clock name
+- wakeup-source: Enables wake up of host system on alarm
+
+Example:
+ rtc1: ds1339@68 {
+ compatible = "dallas,ds1339";
+ reg = <0x68>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <20 0>;
+ };