CS5536_PM1_STS
saved_sci_mask = inl(acpi_base + CS5536_PM1_STS);
outl(saved_sci_mask, acpi_base + CS5536_PM1_STS);
outl(wakeup_mask << 16, acpi_base + CS5536_PM1_STS);
sts = inl(acpi_base + CS5536_PM1_STS);
outl(sts | 0xffff, acpi_base + CS5536_PM1_STS);
sts = inl(acpi_base + CS5536_PM1_STS);
acpi_base + CS5536_PM1_STS);