diff options
| author | Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> | 2017-07-18 15:32:28 +0530 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-09-20 17:44:16 +0200 |
| commit | f77e33b00691bc140412b6e9c94f90b185f0f5d7 (patch) | |
| tree | c0c389fbd51f0e10b62458996172b1ba6f1dbd46 /Documentation | |
| parent | f328e55a793497870c533eac0ac21cb735a82e6d (diff) | |
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: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
(backported from commit 8566f70c8a90f3914b06e934852596ba94aaa381)
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 ad6a73852f08..7a5c7f4dd83f 100644 --- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt +++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt @@ -54,6 +54,7 @@ ramtron,24c64 i2c serial eeprom (24cxx) ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power) st-micro,24c256 i2c serial eeprom (24cxx) +st,m41t0 Serial real-time clock (RTC) stm,m41t00 Serial Access TIMEKEEPER stm,m41t62 Serial real-time clock (RTC) with alarm stm,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS |