[PATCH v4 1/2] Documentation: dt-bindings: trickle charger dt binding document for ds1339

[PATCH v4 1/2] Documentation: dt-bindings: trickle charger dt binding document for ds1339

[Matti Vaittinen]

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>
---

    Delta to v3:
        - Splitted documentation to own patch
        - Changed diode property to trickle-diode-enable

 .../devicetree/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 6af570e..e9206a4 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 0000000..fba65b2
--- /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-enable : Use internal trickle charger diode
+	Should be given if internal trickle charger diode should be enabled
+Example:
+	ds1339: rtc@68 {
+		compatible = "dallas,ds1339";
+		trickle-resistor-ohms = <250>;
+		reg = <0x68>;
+	};
-- 
1.8.3.1


-- 
=============================================

Matti Vaittinen
Senile SW Specialist
FINLAND 

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