__lpss_reg_read
*val = __lpss_reg_read(pdata, reg);
ltr_mode = __lpss_reg_read(pdata, LPSS_GENERAL);
ltr_val = __lpss_reg_read(pdata, LPSS_SW_LTR) & ~LPSS_LTR_SNOOP_MASK;
pdata->prv_reg_ctx[i] = __lpss_reg_read(pdata, offset);