diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig
index 183f5dc1c3f228fbc29df3522cfadff18641ba9b..88e60c9291e4b7383413b2f5ee231cb3f13c93a8 100644
--- a/drivers/gpu/drm/i915/Kconfig
+++ b/drivers/gpu/drm/i915/Kconfig
@@ -19,6 +19,7 @@ config DRM_I915
 	select INPUT if ACPI
 	select ACPI_VIDEO if ACPI
 	select ACPI_BUTTON if ACPI
+	select IOSF_MBI
 	help
 	  Choose this option if you have a system that has "Intel Graphics
 	  Media Accelerator" or "HD Graphics" integrated graphics,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 5f70546f7636a804047a6b4875e58019530191bf..19a51882adf5cf689beeef5be559862bc25f744f 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -722,6 +722,7 @@ struct intel_uncore {
 	const struct intel_forcewake_range *fw_domains_table;
 	unsigned int fw_domains_table_entries;
 
+	struct notifier_block pmic_bus_access_nb;
 	struct intel_uncore_funcs funcs;
 
 	unsigned fifo_count;
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index df84b04f215ec9c654ca465e0d6a5b4fc56f3586..6106a54ecff58fe7041aeae6e0e33f33051fb644 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -25,6 +25,7 @@
 #include "intel_drv.h"
 #include "i915_vgpu.h"
 
+#include <asm/iosf_mbi.h>
 #include <linux/pm_runtime.h>
 
 #define FORCEWAKE_ACK_TIMEOUT_MS 50
@@ -429,12 +430,16 @@ static void __intel_uncore_early_sanitize(struct drm_i915_private *dev_priv,
 
 void intel_uncore_suspend(struct drm_i915_private *dev_priv)
 {
+	iosf_mbi_unregister_pmic_bus_access_notifier(
+		&dev_priv->uncore.pmic_bus_access_nb);
 	intel_uncore_forcewake_reset(dev_priv, false);
 }
 
 void intel_uncore_resume_early(struct drm_i915_private *dev_priv)
 {
 	__intel_uncore_early_sanitize(dev_priv, true);
+	iosf_mbi_register_pmic_bus_access_notifier(
+		&dev_priv->uncore.pmic_bus_access_nb);
 	i915_check_and_clear_faults(dev_priv);
 }
 
@@ -1390,6 +1395,32 @@ static void intel_uncore_fw_domains_init(struct drm_i915_private *dev_priv)
 	dev_priv->uncore.fw_domains_table_entries = ARRAY_SIZE((d)); \
 }
 
+static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
+					 unsigned long action, void *data)
+{
+	struct drm_i915_private *dev_priv = container_of(nb,
+			struct drm_i915_private, uncore.pmic_bus_access_nb);
+
+	switch (action) {
+	case MBI_PMIC_BUS_ACCESS_BEGIN:
+		/*
+		 * forcewake all now to make sure that we don't need to do a
+		 * forcewake later which on systems where this notifier gets
+		 * called requires the punit to access to the shared pmic i2c
+		 * bus, which will be busy after this notification, leading to:
+		 * "render: timed out waiting for forcewake ack request."
+		 * errors.
+		 */
+		intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL);
+		break;
+	case MBI_PMIC_BUS_ACCESS_END:
+		intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
+		break;
+	}
+
+	return NOTIFY_OK;
+}
+
 void intel_uncore_init(struct drm_i915_private *dev_priv)
 {
 	i915_check_vgpu(dev_priv);
@@ -1399,6 +1430,8 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 	__intel_uncore_early_sanitize(dev_priv, false);
 
 	dev_priv->uncore.unclaimed_mmio_check = 1;
+	dev_priv->uncore.pmic_bus_access_nb.notifier_call =
+		i915_pmic_bus_access_notifier;
 
 	switch (INTEL_INFO(dev_priv)->gen) {
 	default:
@@ -1458,6 +1491,9 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 		ASSIGN_READ_MMIO_VFUNCS(vgpu);
 	}
 
+	iosf_mbi_register_pmic_bus_access_notifier(
+		&dev_priv->uncore.pmic_bus_access_nb);
+
 	i915_check_and_clear_faults(dev_priv);
 }
 #undef ASSIGN_WRITE_MMIO_VFUNCS
@@ -1465,6 +1501,9 @@ void intel_uncore_init(struct drm_i915_private *dev_priv)
 
 void intel_uncore_fini(struct drm_i915_private *dev_priv)
 {
+	iosf_mbi_unregister_pmic_bus_access_notifier(
+		&dev_priv->uncore.pmic_bus_access_nb);
+
 	/* Paranoia: make sure we have disabled everything before we exit. */
 	intel_uncore_sanitize(dev_priv);
 	intel_uncore_forcewake_reset(dev_priv, false);