From 13a5595892ca3cf99625085aaee4c2cb2e6dd5a5 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:43 +0200 Subject: dt-bindings: rtc: DS1307 and compatibles are not trivial Document optional properties for ds1307 and compatible RTCs Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/rtc-ds1307.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-ds1307.txt (limited to 'Documentation/devicetree/bindings/rtc') diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt new file mode 100644 index 000000000000..c010f18a85a0 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt @@ -0,0 +1,36 @@ +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>; + }; -- cgit