Convert remaining I2C RTC drivers to use todr_attach().
These all get a quality of 1000 since these are supposed to be battery
backed and almost certainly what the hardware designers want us to use.

ok mglocker@, jsg@

constify struct cfattach

Enable the trickle charger after setting the control register.

Update the trickle charger diode defines based on the datasheet, and
enable the trickle charger.

Writing and reading time has been broken in abcrtc(4) as well. I was
being too clever trying to use the SMBus block reads/writes. Instead
the registers were written with an offset: Seconds were stored in the
minutes, minutes were stored in the hours. No wonder time was ticking
so slowly. Removing the bogus length field and simply writing/reading
the time register values is enough.

ok kettenis@

Configure abcrtc(4)'s trickle charger. This uses information
from the device tree to configures the RTC to be able to charge
a connected battery or capacitor.

ok kettenis@

The function to write to abcrtc(4)'s configuration registers
unfortunately did not write the data to the register, but the
register offset. Oops.

ok kettenis@

abcrtc(4), a driver for the Abracon AB1805 RTC and similar variants.

ok kettenis@

constify struct cfattach

Enable the trickle charger after setting the control register.

Update the trickle charger diode defines based on the datasheet, and
enable the trickle charger.

Writing and reading time has been broken in abcrtc(4) as well. I was
being too clever trying to use the SMBus block reads/writes. Instead
the registers were written with an offset: Seconds were stored in the
minutes, minutes were stored in the hours. No wonder time was ticking
so slowly. Removing the bogus length field and simply writing/reading
the time register values is enough.

ok kettenis@

Configure abcrtc(4)'s trickle charger. This uses information
from the device tree to configures the RTC to be able to charge
a connected battery or capacitor.

ok kettenis@

The function to write to abcrtc(4)'s configuration registers
unfortunately did not write the data to the register, but the
register offset. Oops.

ok kettenis@

abcrtc(4), a driver for the Abracon AB1805 RTC and similar variants.

ok kettenis@

Enable the trickle charger after setting the control register.

Update the trickle charger diode defines based on the datasheet, and
enable the trickle charger.

Writing and reading time has been broken in abcrtc(4) as well. I was
being too clever trying to use the SMBus block reads/writes. Instead
the registers were written with an offset: Seconds were stored in the
minutes, minutes were stored in the hours. No wonder time was ticking
so slowly. Removing the bogus length field and simply writing/reading
the time register values is enough.

ok kettenis@

Configure abcrtc(4)'s trickle charger. This uses information
from the device tree to configures the RTC to be able to charge
a connected battery or capacitor.

ok kettenis@

The function to write to abcrtc(4)'s configuration registers
unfortunately did not write the data to the register, but the
register offset. Oops.

ok kettenis@

abcrtc(4), a driver for the Abracon AB1805 RTC and similar variants.

ok kettenis@

abcrtc(4), a driver for the Abracon AB1805 RTC and similar variants.

ok kettenis@