Documentation: dt-bindings: trickle charger dt binding document for ds1339
Some DS13XX devices have "trickle chargers". Introduce a device tree binding for the resistor and diode configuration for enabling trickle charger. Signed-off-by: Matti Vaittinen <matti.vaittinen@nsn.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Pavel Machek <pavel@denx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -35,7 +35,6 @@ catalyst,24c32 i2c serial eeprom
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cirrus,cs42l51 Cirrus Logic CS42L51 audio codec
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dallas,ds1307 64 x 8, Serial, I2C Real-Time Clock
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dallas,ds1338 I2C RTC with 56-Byte NV RAM
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dallas,ds1339 I2C Serial Real-Time Clock
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dallas,ds1340 I2C RTC with Trickle Charger
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dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
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dallas,ds1631 High-Precision Digital Thermometer
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@ -0,0 +1,18 @@
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* Dallas DS1339 I2C Serial Real-Time Clock
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Required properties:
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- compatible: Should contain "dallas,ds1339".
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- reg: I2C address for chip
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Optional properties:
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- trickle-resistor-ohms : Selected resistor for trickle charger
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Values usable for ds1339 are 250, 2000, 4000
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Should be given if trickle charger should be enabled
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- trickle-diode-disable : Do not use internal trickle charger diode
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Should be given if internal trickle charger diode should be disabled
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Example:
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ds1339: rtc@68 {
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compatible = "dallas,ds1339";
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trickle-resistor-ohms = <250>;
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reg = <0x68>;
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};
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