apple/macbookpro/11-5: Prevent intermittent xhci wakeup after suspend

apple/macbook-pro/11-5/default.nix

@@ -1,4 +1,10 @@
-{ lib, pkgs, ... }:
+{ lib, config, pkgs, ... }:
+
+let
+
+  kernelPackages = config.boot.kernelPackages;
+
+in
 
 {
   imports = [
@@ -14,4 +20,11 @@
   hardware.opengl.driSupport32Bit = false;
 
   services.xserver.videoDrivers = [ "ati" ];
+
+  services.udev.extraRules =
+    # Disable XHC1 wakeup signal to avoid resume getting triggered some time
+    # after suspend. Reboot required for this to take effect.
+    lib.optionalString
+      (lib.versionAtLeast kernelPackages.kernel.version "3.13")
+      ''SUBSYSTEM=="pci", KERNEL=="0000:00:14.0", ATTR{power/wakeup}="disabled"'';
 }