[v4,3/4] drm/i915: Call uncore_suspend before platform suspend handlers

Commit Message

Hans de Goede Aug. 20, 2017, 12:59 p.m. UTC

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 <[e-mail]>
Suggested-by: Imre Deak <[e-mail]>
Signed-off-by: Hans de Goede <[e-mail]>
Reviewed-by: Imre Deak <[e-mail]>
---
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(-)

Patch

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));