On Fri, Oct 16, 2015 at 09:27:00AM -0400, Vincent Wan wrote:
> Detecting platform supports i8042 or not, AMD resorted to
> BIOS's FADT i8042 flag.
>
> Signed-off-by: Vincent Wan <Vincent.Wan@xxxxxxx>
> ---
> drivers/input/serio/i8042-x86ia64io.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index c115565..bf3a605 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 +1048,11 @@ 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 (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) {
Why the vendor check if you're accessing a bit defined in the ACPI spec?
> + if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042))
> + return -ENODEV;
> + }
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
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