diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 32fbdf9ff265b200b02e95065387d09147235589..853f05ced1b10b14ca0a4c10e7c5a6f55eae0cf0 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -2180,7 +2180,8 @@ static int r600_packet3_check(struct radeon_cs_parser *p,
 		}
 		break;
 	case PACKET3_STRMOUT_BASE_UPDATE:
-		if (p->family < CHIP_RV770) {
+		/* RS780 and RS880 also need this */
+		if (p->family < CHIP_RS780) {
 			DRM_ERROR("STRMOUT_BASE_UPDATE only supported on 7xx\n");
 			return -EINVAL;
 		}
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 8c593ea82c412b2098d1c3dac3e1f6167356e6fa..2c8b0f849e36e8f07b8022c97cda4809e69e7c3c 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -64,9 +64,10 @@
  *   2.20.0 - r600-si: RADEON_INFO_TIMESTAMP query
  *   2.21.0 - r600-r700: FMASK and CMASK
  *   2.22.0 - r600 only: RESOLVE_BOX allowed
+ *   2.23.0 - allow STRMOUT_BASE_UPDATE on RS780 and RS880
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	22
+#define KMS_DRIVER_MINOR	23
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);