From e9d868de631597a82b28927fb89ba7c2dfa52def Mon Sep 17 00:00:00 2001
From: Nikolay Amiantov <ab@fmap.me>
Date: Tue, 6 Jan 2015 03:06:49 +0300
Subject: [PATCH] kernel: enable intel_pstate

---
 pkgs/os-specific/linux/kernel/common-config.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 48493044065..ef061459191 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -7,6 +7,9 @@ with stdenv.lib;
   DEBUG_KERNEL y
   PM_ADVANCED_DEBUG y
   PM_RUNTIME y
+  ${optionalString (versionAtLeast version "3.10") ''
+    X86_INTEL_PSTATE y
+  ''}
   TIMER_STATS y
   ${optionalString (versionOlder version "3.10") ''
     USB_SUSPEND y