From: Kristen Carlson Accardi <kristen@linux.intel.com>
Date: Tue, 14 Jan 2014 23:36:15 +0000 (-0800)
Subject: i915: send D1 opregion notification
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1fb2362b43371f35b98a55e615d990f96d8ac966;p=linux-beck.git

i915: send D1 opregion notification

The opregion notification for runtime suspend is currently D1, not D3.

Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ca11cc854e78..04f1f02c4019 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -922,7 +922,15 @@ static int i915_runtime_suspend(struct device *device)
 
 	del_timer_sync(&dev_priv->gpu_error.hangcheck_timer);
 	dev_priv->pm.suspended = true;
-	intel_opregion_notify_adapter(dev, PCI_D3cold);
+
+	/*
+	 * current versions of firmware which depend on this opregion
+	 * notification have repurposed the D1 definition to mean
+	 * "runtime suspended" vs. what you would normally expect (D3)
+	 * to distinguish it from notifications that might be sent
+	 * via the suspend path.
+	 */
+	intel_opregion_notify_adapter(dev, PCI_D1);
 
 	return 0;
 }