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Hello and welcome!

I´m really proud to introduce the new way to get your LetsTrust-TPM working with your Raspberry Pi!

Till the next Stretch update from the RasPi Foundation the way will be:

Step one:
Open a (whatever) term on your Pi.

Step two:
run a "sudo rpi-update"

Step three:
open the /boot/config.txt with "sudo nano /boot/config.txt"
and activate SPI with uncomment
and load the TPM device tree overlay with

Step four:
plug your LetsTrust-TPM on the right position and reboot your Raspberry Pi

Step five:
Open a (whatever) term on your Pi and type "ls /dev/tpm0" and
/dev/tpm0 will appear in yellow letters!

Step six:
Be happy about your success!

Grateful thank to a friend of mine an ex colleague: Peter Hüwe.
He find this smart solution [1] for the Pull Request issues [2].

Thank you to Phil Elwell to evaluate, identify problems and finally merged the PR [3]

By for now!