intelpmc_dsm
intelpmc_dsm(sc->sc_acpi, sc->sc_node, ACPI_LPS0_SCREEN_OFF);
intelpmc_dsm(sc->sc_acpi, sc->sc_node, ACPI_LPS0_ENTRY);
intelpmc_dsm(sc->sc_acpi, sc->sc_node, ACPI_LPS0_EXIT);
intelpmc_dsm(sc->sc_acpi, sc->sc_node, ACPI_LPS0_SCREEN_ON);