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dt-bindings: rtc: Add bindings for m41t80 and compatibles 

The ST M41T80 family of RTC are not trivial devices, document them.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Alexandre Belloni 2017-09-27 16:03:44 +02:00 committed by Rob Herring
parent 13a5595892
commit 5015391d9d
2 changed files with 31 additions and 2 deletions
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31
Documentation/devicetree/bindings/rtc/rtc-m41t80.txt Normal file
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@ -0,0 +1,31 @@
ST M41T80 family of RTC and compatible
Required properties:
- compatible: should be one of:
"st,m41t62",
"st,m41t65",
"st,m41t80",
"st,m41t81",
"st,m41t81s",
"st,m41t82",
"st,m41t83",
"st,m41t84",
"st,m41t85",
"st,m41t87",
"microcrystal,rv4162",
- reg: I2C bus address of the device
Optional properties:
- interrupt-parent: phandle for the interrupt controller.
- interrupts: rtc alarm interrupt.
- clock-output-names: From common clock binding to override the default output
clock name
- wakeup-source: Enables wake up of host system on alarm
Example:
rtc@68 {
compatible = "st,m41t80";
reg = <0x68>;
interrupt-parent = <&UIC0>;
interrupts = <0x9 0x8>;
};

2
Documentation/devicetree/bindings/trivial-devices.txt
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@ -175,8 +175,6 @@ sii,s35390a 2-wire CMOS real-time clock
silabs,si7020 Relative Humidity and Temperature Sensors
skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply
st,24c256 i2c serial eeprom (24cxx)
st,m41t62 Serial real-time clock (RTC) with alarm
st,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS
taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface
ti,ads7828 8-Channels, 12-bit ADC
ti,ads7830 8-Channels, 8-bit ADC