From 2ac848c018615bf3605faa711207518292d4bfef Mon Sep 17 00:00:00 2001 From: Matti Vaittinen Date: Mon, 13 Oct 2014 15:52:46 -0700 Subject: [PATCH] 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 Acked-by: Jason Cooper Cc: Rob Herring Cc: Pawel Moll Cc: Guenter Roeck Cc: Alessandro Zummo Cc: Mark Rutland Cc: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .../bindings/i2c/trivial-devices.txt | 1 - .../devicetree/bindings/rtc/dallas,ds1339.txt | 18 ++++++++++++++++++ 2 files changed, 18 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/rtc/dallas,ds1339.txt diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt index 5af3d9df6ecb..fbde415078e6 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -35,7 +35,6 @@ catalyst,24c32 i2c serial eeprom cirrus,cs42l51 Cirrus Logic CS42L51 audio codec dallas,ds1307 64 x 8, Serial, I2C Real-Time Clock dallas,ds1338 I2C RTC with 56-Byte NV RAM -dallas,ds1339 I2C Serial Real-Time Clock dallas,ds1340 I2C RTC with Trickle Charger dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output dallas,ds1631 High-Precision Digital Thermometer diff --git a/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt b/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt new file mode 100644 index 000000000000..916f57601a8f --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt @@ -0,0 +1,18 @@ +* Dallas DS1339 I2C Serial Real-Time Clock + +Required properties: +- compatible: Should contain "dallas,ds1339". +- reg: I2C address for chip + +Optional properties: +- trickle-resistor-ohms : Selected resistor for trickle charger + Values usable for ds1339 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: + ds1339: rtc@68 { + compatible = "dallas,ds1339"; + trickle-resistor-ohms = <250>; + reg = <0x68>; + }; -- 2.39.2