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rtc: ds1390: Add trickle charger device tree binding

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Introduce a device tree binding for specifying the trickle charger
configuration for ds1390.

Signed-off-by: Ivan Grimaldi <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
This commit is contained in:
Ivan Grimaldi 2015-09-18 17:27:57 +02:00 • committed by Alexandre Belloni
commit fa395fb8fc
3 changed files with 83 additions and 2 deletions
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18
Documentation/devicetree/bindings/rtc/dallas,ds1390.txt Normal file
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* Dallas DS1390 SPI Serial Real-Time Clock
Required properties:
- compatible: Should contain "dallas,ds1390".
- reg: SPI address for chip
Optional properties:
- trickle-resistor-ohms : Selected resistor for trickle charger
Values usable for ds1390 are 250, 2000, 4000
Should be given if trickle charger should be enabled
- trickle-diode-disable : Do not use internal trickle charger diode
Should be given if internal trickle charger diode should be disabled
Example:
ds1390: rtc@68 {
compatible = "dallas,ds1390";
trickle-resistor-ohms = <250>;
reg = <0>;
};