Clearing browser tabs from an old effort to try again to get the pcf8563 RTC chip to install into my Debian OS using Device Tree. I was never able to figure out how to get the chip installed this way, instead I got the driver module compiled. These links mostly don't make sense to me but I'm saving them for future reference if I eventually grow to understand Device Tree better.
An email or forum thread from somebody who made some changes to the commonly available driver for some reason associated with Device Tree interfaces. I'm not sure what lkml is though: https://lkml.org/lkml/2012/7/18/241
Another message from the same thread from somebody who made changes to the driver because of Device Tree needs: https://lkml.org/lkml/2012/7/18/241
A list which seems to indicate that the pcf8563 is "trivial" and supported by Device Tree. But I have no idea how that helps: http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/i2c/trivial-devices.txt?v=3.14
More about Device Tree and I2C, in this case for Raspberry Pi. This should help somehow with the pcf8563 which is an i2c device. This document seems to show how to enable RTCs including the pcf8563, and may actually work but I couldn't figure it out: https://www.raspberrypi.org/forums/viewtopic.php?t=97314
This seems to be a tutorial on how to write Device Tree overlays, and mentions the pcf8563 but again I wasn't sure what to do here: https://github.com/raspberrypi/firmware/blob/master/boot/overlays/README
