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authorStefan Agner <stefan@agner.ch>2017-03-24 00:54:57 +0100
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2017-04-14 12:08:53 +0200
commit8566f70c8a90f3914b06e934852596ba94aaa381 (patch)
tree67701afd66551074475a0b1a487cbcce67a3ecbb /Documentation
parentrtc: cpcap: fix improper use of IRQ_NONE for request_threaded_irq (diff)
downloadlinux-8566f70c8a90f3914b06e934852596ba94aaa381.tar.xz
linux-8566f70c8a90f3914b06e934852596ba94aaa381.zip
rtc: ds1307: support m41t0 variant
The m41t0 variant is very similar to the already supported m41t00 variant, with the notable exception of the oscillator fail bit. The data sheet notes: If the oscillator fail (OF) bit is internally set to a '1,' this indicates that the oscillator has either stopped, or was stopped for some period of time and can be used to judge the validity of the clock and date data. The bit will get cleared with a regular write of the system time, so no changes are needed to clear it. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/i2c/trivial-devices.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index ad10fbe61562..3e0a34c88e07 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -160,6 +160,7 @@ 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,m41t0 Serial real-time clock (RTC)
st,m41t00 Serial real-time clock (RTC)
st,m41t62 Serial real-time clock (RTC) with alarm
st,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS