diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 2e1de4fd2975..e49059dc9b8f 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1504,8 +1504,8 @@ void evergreen_pm_misc(struct radeon_device *rdev)
 	struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
 
 	if (voltage->type == VOLTAGE_SW) {
-		/* 0xff01 is a flag rather then an actual voltage */
-		if (voltage->voltage == 0xff01)
+		/* 0xff0x are flags rather then an actual voltage */
+		if ((voltage->voltage & 0xff00) == 0xff00)
 			return;
 		if (voltage->voltage && (voltage->voltage != rdev->pm.current_vddc)) {
 			radeon_atom_set_voltage(rdev, voltage->voltage, SET_VOLTAGE_TYPE_ASIC_VDDC);
@@ -1525,8 +1525,8 @@ void evergreen_pm_misc(struct radeon_device *rdev)
 			voltage = &rdev->pm.power_state[req_ps_idx].
 				clock_info[rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx].voltage;
 
-		/* 0xff01 is a flag rather then an actual voltage */
-		if (voltage->vddci == 0xff01)
+		/* 0xff0x are flags rather then an actual voltage */
+		if ((voltage->vddci & 0xff00) == 0xff00)
 			return;
 		if (voltage->vddci && (voltage->vddci != rdev->pm.current_vddci)) {
 			radeon_atom_set_voltage(rdev, voltage->vddci, SET_VOLTAGE_TYPE_ASIC_VDDCI);
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index b1777d10d0b5..fbdaff55556b 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -2441,6 +2441,10 @@ static bool radeon_atombios_parse_pplib_clock_info(struct radeon_device *rdev,
 	case ATOM_VIRTUAL_VOLTAGE_ID1:
 	case ATOM_VIRTUAL_VOLTAGE_ID2:
 	case ATOM_VIRTUAL_VOLTAGE_ID3:
+	case ATOM_VIRTUAL_VOLTAGE_ID4:
+	case ATOM_VIRTUAL_VOLTAGE_ID5:
+	case ATOM_VIRTUAL_VOLTAGE_ID6:
+	case ATOM_VIRTUAL_VOLTAGE_ID7:
 		if (radeon_atom_get_max_vddc(rdev, VOLTAGE_TYPE_VDDC,
 					     rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage,
 					     &vddc) == 0)
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index ebbdb477745a..c3e5e119702d 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -852,7 +852,7 @@ static void radeon_pm_resume_old(struct radeon_device *rdev)
 {
 	/* set up the default clocks if the MC ucode is loaded */
 	if ((rdev->family >= CHIP_BARTS) &&
-	    (rdev->family <= CHIP_CAYMAN) &&
+	    (rdev->family <= CHIP_HAINAN) &&
 	    rdev->mc_fw) {
 		if (rdev->pm.default_vddc)
 			radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -896,7 +896,7 @@ static void radeon_pm_resume_dpm(struct radeon_device *rdev)
 	if (ret) {
 		DRM_ERROR("radeon: dpm resume failed\n");
 		if ((rdev->family >= CHIP_BARTS) &&
-		    (rdev->family <= CHIP_CAYMAN) &&
+		    (rdev->family <= CHIP_HAINAN) &&
 		    rdev->mc_fw) {
 			if (rdev->pm.default_vddc)
 				radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -947,7 +947,7 @@ static int radeon_pm_init_old(struct radeon_device *rdev)
 		radeon_pm_init_profile(rdev);
 		/* set up the default clocks if the MC ucode is loaded */
 		if ((rdev->family >= CHIP_BARTS) &&
-		    (rdev->family <= CHIP_CAYMAN) &&
+		    (rdev->family <= CHIP_HAINAN) &&
 		    rdev->mc_fw) {
 			if (rdev->pm.default_vddc)
 				radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,
@@ -1032,7 +1032,7 @@ static int radeon_pm_init_dpm(struct radeon_device *rdev)
 	if (ret) {
 		rdev->pm.dpm_enabled = false;
 		if ((rdev->family >= CHIP_BARTS) &&
-		    (rdev->family <= CHIP_CAYMAN) &&
+		    (rdev->family <= CHIP_HAINAN) &&
 		    rdev->mc_fw) {
 			if (rdev->pm.default_vddc)
 				radeon_atom_set_voltage(rdev, rdev->pm.default_vddc,