Messages in this thread | | | Date | Wed, 2 Dec 2015 12:45:10 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v2] Implement i8042 detect by BIOS FADT i8042 flag |
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On Wed, Dec 02, 2015 at 02:07:18PM -0500, Wan Zongshun wrote: > Detecting x86 platform supporting i8042 or not, we should resort > to BIOS's FADT i8042 flag per ACPI spec. > > Currently, Windows is conforming to this spec, and request this > flag to detect i8042 supporting. > > Signed-off-by: Wan Zongshun <Vincent.Wan@amd.com> > --- > drivers/input/serio/i8042-x86ia64io.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h > index c115565..73686bd 100644 > --- a/drivers/input/serio/i8042-x86ia64io.h > +++ b/drivers/input/serio/i8042-x86ia64io.h > @@ -9,6 +9,7 @@ > > #ifdef CONFIG_X86 > #include <asm/x86_init.h> > +#include <linux/acpi.h> > #endif > > /* > @@ -1047,6 +1048,9 @@ static int __init i8042_platform_init(void) > /* Just return if pre-detection shows no i8042 controller exist */ > if (!x86_platform.i8042_detect()) > return -ENODEV; > + > + if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042)) > + return -ENODEV; > #endif
Acked-by: Borislav Petkov <bp@suse.de>
with the small remark that whoever commits it, could add the URL of the microsoft document to the commit message for further reference.
Thanks.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply.
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