Detecting platform supports i8042 or not, AMD resorted to
BIOS's FADT i8042 flag.
Signed-off-by: Vincent Wan <vincent....@amd.com>
---
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) {
+ if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042))
+ return -ENODEV;
+ }
#endif
/*
--
1.9.1
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