diff options
Diffstat (limited to 'drivers/acpi/reboot.c')
| -rw-r--r-- | drivers/acpi/reboot.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index 93f91142d7a..a6c77e8b37b 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -15,9 +15,15 @@ void acpi_reboot(void) rr = &acpi_gbl_FADT.reset_register; - /* Is the reset register supported? */ - if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) || - rr->bit_width != 8 || rr->bit_offset != 0) + /* ACPI reset register was only introduced with v2 of the FADT */ + + if (acpi_gbl_FADT.header.revision < 2) + return; + + /* Is the reset register supported? The spec says we should be + * checking the bit width and bit offset, but Windows ignores + * these fields */ + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER)) return; reset_value = acpi_gbl_FADT.reset_value; @@ -45,6 +51,4 @@ void acpi_reboot(void) acpi_reset(); break; } - /* Wait ten seconds */ - acpi_os_stall(10000000); } |