ICHX_READ
data = ICHX_READ(ichx_priv.desc->regs[reg][reg_nr],
tmp = ICHX_READ(ichx_priv.desc->regs[reg][reg_nr],
data = ICHX_READ(ichx_priv.desc->regs[reg][reg_nr],
data = ICHX_READ(0, ichx_priv.pm_base);