1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 20e3c65c0999..cb48c8b92aa3 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1240,8 +1240,15 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
                  * bus, which will be busy after this notification, leading to:
                  * "render: timed out waiting for forcewake ack request."
                  * errors.
+                 *
+                 * The notifier is unregistered during intel_runtime_suspend(),
+                 * so it's ok to access the HW here without holding a RPM
+                 * wake reference -> disable wakeref asserts for the time of
+                 * the access.
                  */
+                disable_rpm_wakeref_asserts(dev_priv);
                 intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
+                enable_rpm_wakeref_asserts(dev_priv);
                 break;
         case MBI_PMIC_BUS_ACCESS_END:
                 intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);