In reviewing the schematics for the Sabre-SDB and datasheet for the WM8962 codec (rev. 4.2, top of page 151), it says
Note that it is important that the GPIO5 input is held in a defined logic state (logic ‘0’ or logic ‘1’) during
start-up; it must not be left floating.
On the Sabre-SDB this pin appears to be floating in the default configuration (no digital microphones installed). Is this intentional? If I was to add a resistor to set the state, which is the preferred setting?