AT91_ST_PITS
regmap_write(regmap_st, AT91_ST_IDR, AT91_ST_PITS | AT91_ST_ALMS);
irqmask = AT91_ST_PITS;
AT91_ST_PITS | AT91_ST_WDOVF | AT91_ST_RTTINC | AT91_ST_ALMS);
if (sr & AT91_ST_PITS) {