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[karo-tx-linux.git] / Documentation / devicetree / bindings / rtc / dallas,ds1390.txt
1 * Dallas DS1390         SPI Serial Real-Time Clock
2
3 Required properties:
4 - compatible: Should contain "dallas,ds1390".
5 - reg: SPI address for chip
6
7 Optional properties:
8 - trickle-resistor-ohms : Selected resistor for trickle charger
9         Values usable for ds1390 are 250, 2000, 4000
10         Should be given if trickle charger should be enabled
11 - trickle-diode-disable : Do not use internal trickle charger diode
12         Should be given if internal trickle charger diode should be disabled
13 Example:
14         ds1390: rtc@68 {
15                 compatible = "dallas,ds1390";
16                 trickle-resistor-ohms = <250>;
17                 reg = <0>;
18         };