STMPE_IDX_GPPUR_LSB
u8 pureg = stmpe->regs[STMPE_IDX_GPPUR_LSB];
[STMPE_IDX_GPPUR_LSB] = STMPE1601_REG_GPIO_PU_LSB,
[STMPE_IDX_GPPUR_LSB] = STMPE1801_REG_GPIO_PULL_UP_LOW,
[STMPE_IDX_GPPUR_LSB] = STMPE24XX_REG_GPPUR_LSB,