diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 87c457c031f4..fe2991d237bf 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1453,6 +1453,7 @@ static struct radeon_asic sumo_asic = {
 		.init = &sumo_dpm_init,
 		.setup_asic = &sumo_dpm_setup_asic,
 		.enable = &sumo_dpm_enable,
+		.late_enable = &sumo_dpm_late_enable,
 		.disable = &sumo_dpm_disable,
 		.pre_set_power_state = &sumo_dpm_pre_set_power_state,
 		.set_power_state = &sumo_dpm_set_power_state,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 85e55c184e38..1e7d66984156 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -547,6 +547,7 @@ u32 btc_dpm_get_mclk(struct radeon_device *rdev, bool low);
 bool btc_dpm_vblank_too_short(struct radeon_device *rdev);
 int sumo_dpm_init(struct radeon_device *rdev);
 int sumo_dpm_enable(struct radeon_device *rdev);
+int sumo_dpm_late_enable(struct radeon_device *rdev);
 void sumo_dpm_disable(struct radeon_device *rdev);
 int sumo_dpm_pre_set_power_state(struct radeon_device *rdev);
 int sumo_dpm_set_power_state(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c
index 96ea6db8bf57..b63640f47d38 100644
--- a/drivers/gpu/drm/radeon/sumo_dpm.c
+++ b/drivers/gpu/drm/radeon/sumo_dpm.c
@@ -1247,6 +1247,26 @@ int sumo_dpm_enable(struct radeon_device *rdev)
 	return 0;
 }
 
+int sumo_dpm_late_enable(struct radeon_device *rdev)
+{
+	int ret;
+
+	ret = sumo_enable_clock_power_gating(rdev);
+	if (ret)
+		return ret;
+
+	if (rdev->irq.installed &&
+	    r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+		ret = sumo_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
+		if (ret)
+			return ret;
+		rdev->irq.dpm_thermal = true;
+		radeon_irq_set(rdev);
+	}
+
+	return 0;
+}
+
 void sumo_dpm_disable(struct radeon_device *rdev)
 {
 	struct sumo_power_info *pi = sumo_get_pi(rdev);