dts/revpi-flat: Add SLB9670 reset via reset GPIO [REVPI-3905]
requested to merge linosanfilippo-kunbus/linux:fix/REVPI-3229/fix_tpm_unavailable into devel/revpi-6.6
The reset of the SLB9670 tpm on older RevPi Flat devices must be toggled after a warm start to ensure that all registers are set to a initial state. Add a custom regulator like we did with KS8851 on Core for this, instead of crafting a custom reset driver which we tried to upstream without any success.
Signed-off-by: Nicolai Buchwitz n.buchwitz@kunbus.com [l.sanfilippo: adjust startup delay] Signed-off-by: Lino Sanfilippo l.sanfilippo@kunbus.com