EFCH_PM_ACPI_MMIO_PM_ADDR
res = request_mem_region_muxed(EFCH_PM_ACPI_MMIO_PM_ADDR,
EFCH_PM_ACPI_MMIO_PM_ADDR);
addr = ioremap(EFCH_PM_ACPI_MMIO_PM_ADDR, EFCH_PM_ACPI_MMIO_PM_SIZE);