-dpb7000: Several tablet-related fixes. [Ryan Holtz] (#8006)
* The triggering of pen IRQs was slightly incorrect. With this change, the PENTEST utility now correctly reports pen-in-proximity when holding the input to flag it. The pen coordinates are wrong, however, which is expected.
* The serial communication between the tablet board and TDS board was slightly incorrect. After this fix, the values being put into the SIO register by the Z8 correspond 1:1 with the values being received by the SCN2681 DUART. |