diff options
Diffstat (limited to 'arch/x86/kernel/acpi')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 6f65b0eed384..64422f850e95 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -930,6 +930,13 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table) x86_platform.legacy.devices.pnpbios = 0; } + if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID && + !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) && + x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) { + pr_debug("ACPI: i8042 controller is absent\n"); + x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT; + } + if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) { pr_debug("ACPI: not registering RTC platform device\n"); x86_platform.legacy.rtc = 0; |