Rasclock (PCF2127 ) Hardware Clock FreeBSD 12.0

[Ian Lepore]

On Thu, 2019-07-18 at 00:59 +0300, Stefan Parvu wrote:
> $ dmesg | grep nxp
> nxprtc0: <NXP PCF2129 RTC> at addr 0xa2 on iicbus0
> nxprtc0: WARNING: RTC battery failed; time is invalid
> nxprtc0: registered as a time-of-day clock, resolution 0.015625s
> nxprtc0: RTC clock not running
> 
> Stefan Parvu
> sparvu at kronometrix.org

Why does it claim to have found a PCF2129 when the rpi i2c overlay only
has an entry for 2127?  The driver will believe whatever is in the dts
compatible string, it has no way to ask the chip at runtime what model
it is.

-- Ian