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| author | Stefan Agner <stefan@agner.ch> | 2017-03-23 16:54:57 -0700 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2017-04-14 12:08:53 +0200 |
| commit | 8566f70c8a90f3914b06e934852596ba94aaa381 (patch) | |
| tree | 67701afd66551074475a0b1a487cbcce67a3ecbb /Documentation | |
| parent | 03a32da5ca63d418ab95063b06687e00a6df9855 (diff) | |
| download | linux-8566f70c8a90f3914b06e934852596ba94aaa381.tar.gz linux-8566f70c8a90f3914b06e934852596ba94aaa381.tar.bz2 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.txt | 1 |
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 |