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ADC Touch with Linux 3.12

Hi,

I have started using sdk version 07 with linux kernel 3.12 (from the board-port git repository). Everything so far is working fine except for the touch interface. It seems that after the first touch event there starts a flood of touch events. As an example the output of ts_print:

# ts_print
96.162276:    297    281    137
96.164141:    645    192    216
96.166009:    779    176    247
96.166009:    779    176    247
96.167878:    780    176    247
96.169742:    779    175    247
96.171606:    779    175    247
96.175334:    473    283    188
96.177198:    312    302    162
96.179060:    304    304    163
96.179060:    301    304    164
96.180924:    301    304    165
96.182788:    298    305    169
96.184652:    298    304    173
96.186515:    298    304    177
96.188378:    298    304    181
96.190244:    298    304    184
96.192108:    298    304    185
96.193971:    298    304    187
96.195834:    298    304    188
96.197698:    298    304    188
96.199561:    298    303    188
96.201425:    299    303    186
96.203289:    299    303    183
96.205152:    299    303    178
96.207015:    300    303    173
96.208879:    300    303    171
96.210745:    301    304    168
96.212608:    301    303    167
96.214471:    301    303    167
96.218198:    320    284    142
96.220064:    626    196    212
96.221927:    779    175    247
96.221927:    779    175    247
96.223790:    779    175    247
96.225654:    779    175    247
96.227517:    779    175    247
96.229381:    778    175    247
96.231245:    778    175    247
96.233108:    777    175    247
96.234971:    778    175    247
96.236835:    778    175    247
96.240555:    778    175    247
96.242418:    778    176    247
96.244281:    778    175    247
96.246144:    778    175    247
96.248008:    778    175    247
96.249872:    779    175    247
96.251735:    778    175    247
96.253599:    778    175    247
96.255462:    779    175    247
96.257326:    779    175    247
96.259189:    779    175    247
96.261055:    778    175    247
96.262918:    778    175    247
96.264782:    778    175    247
96.266645:    778    175    247
96.268508:    778    175    247
96.270374:    779    175    247
96.272238:    779    175    247
96.274101:    779    175    247
96.275965:    779    175    247
96.277828:    779    176    247
96.279692:    779    176    247
96.281555:    779    176    247
96.283420:    779    176    247
96.285284:    779    175    247
96.287147:    779    175    247
96.289011:    779    175    247
96.290874:    779    175    247
96.292737:    780    175    247
96.294601:    779    176    247
96.296464:    779    176    247
96.298328:    779    175    247
96.300194:    779    176    247
96.302057:    780    175    247
96.303921:    779    175    247
96.305784:    779    175    247
96.307647:    779    175    247
96.309510:    778    176    247
96.311374:    779    175    247
96.313238:    779    176    247
....

After starting ts_print there is no output but after the slightest touch of the panel, the flood of output starts and will not stop anymore.

Are there any hints, what could be the cause for this? On kernel 3.2 the touch is working fine.

cheers