[Intel-gfx] [PATCH v2] i915: send D1 opregion notification

[Kristen Carlson Accardi]

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

Signed-off-by: Kristen Carlson Accardi <kristen at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 61fb9fc..5a26d76 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -925,7 +925,15 @@ 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;
 }
-- 
1.8.3.2