diff options
Diffstat (limited to 'Documentation/devicetree/bindings/rtc/rtc-ds1307.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/rtc-ds1307.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt new file mode 100644 index 000000000000..d28d6e7f6ae8 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt @@ -0,0 +1,44 @@ +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 +- trickle-resistor-ohms : ds1339, ds1340 and ds 1388 only + Selected resistor for trickle charger + Possible values are 250, 2000, 4000 + Should be given if trickle charger should be enabled +- trickle-diode-disable : ds1339, ds1340 and ds 1388 only + Do not use internal trickle charger diode + Should be given if internal trickle charger diode should be disabled + +Example: + rtc1: ds1339@68 { + compatible = "dallas,ds1339"; + reg = <0x68>; + interrupt-parent = <&gpio4>; + interrupts = <20 0>; + trickle-resistor-ohms = <250>; + }; |