[Intel-gfx] [PATCH v4 3/4] drm/i915: Call uncore_suspend before platform suspend handlers

[Hans de Goede]

Quoting Ville: "the forcewake timer might still be active until the uncore
suspend, and having active forcewakes while we've already told the GT wake
stuff to stop acting normally doesn't seem quite right to me."

Reported-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Suggested-by: Imre Deak <imre.deak at intel.com>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
Reviewed-by: Imre Deak <imre.deak at intel.com>
---
Changes in v2:
-Rebase on current (July 6th 2017) drm-next

Changes in v3:
-Add Imre's Reviewed-by
---
 drivers/gpu/drm/i915/i915_drv.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 4715f320c8fa..5bf231abe010 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2490,6 +2490,8 @@ static int intel_runtime_suspend(struct device *kdev)
 
 	intel_runtime_pm_disable_interrupts(dev_priv);
 
+	intel_uncore_suspend(dev_priv);
+
 	ret = 0;
 	if (IS_GEN9_LP(dev_priv)) {
 		bxt_display_core_uninit(dev_priv);
@@ -2502,6 +2504,8 @@ static int intel_runtime_suspend(struct device *kdev)
 
 	if (ret) {
 		DRM_ERROR("Runtime suspend failed, disabling it (%d)\n", ret);
+		intel_uncore_runtime_resume(dev_priv);
+
 		intel_runtime_pm_enable_interrupts(dev_priv);
 
 		enable_rpm_wakeref_asserts(dev_priv);
@@ -2509,8 +2513,6 @@ static int intel_runtime_suspend(struct device *kdev)
 		return ret;
 	}
 
-	intel_uncore_suspend(dev_priv);
-
 	enable_rpm_wakeref_asserts(dev_priv);
 	WARN_ON_ONCE(atomic_read(&dev_priv->pm.wakeref_count));
 
-- 
2.13.4