1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 8233a630280f..dde437f5d14f 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -167,7 +167,8 @@ static int __init ffh_cstate_init(void)
 {
         struct cpuinfo_x86 *c = &boot_cpu_data;
 
-        if (c->x86_vendor != X86_VENDOR_INTEL)
+        if (c->x86_vendor != X86_VENDOR_INTEL &&
+            c->x86_vendor != X86_VENDOR_AMD)
                 return -1;
 
         cpu_cstate_entry = alloc_percpu(struct cstate_entry);