diff --git a/drivers/gpu/drm/armada/armada_drv.c b/drivers/gpu/drm/armada/armada_drv.c
index 225034b..464a13f 100644
--- a/drivers/gpu/drm/armada/armada_drv.c
+++ b/drivers/gpu/drm/armada/armada_drv.c
@@ -300,7 +300,7 @@ static struct drm_driver armada_drm_driver = {
 	.lastclose		= armada_drm_lastclose,
 	.unload			= armada_drm_unload,
 	.set_busid		= drm_platform_set_busid,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= armada_drm_enable_vblank,
 	.disable_vblank		= armada_drm_disable_vblank,
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
index 8bc62ec..2eb1c66 100644
--- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
+++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
@@ -697,7 +697,7 @@ static struct drm_driver atmel_hlcdc_dc_driver = {
 	.irq_preinstall = atmel_hlcdc_dc_irq_uninstall,
 	.irq_postinstall = atmel_hlcdc_dc_irq_postinstall,
 	.irq_uninstall = atmel_hlcdc_dc_irq_uninstall,
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank = atmel_hlcdc_dc_enable_vblank,
 	.disable_vblank = atmel_hlcdc_dc_disable_vblank,
 	.gem_free_object = drm_gem_cma_free_object,
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index ed2394e..7d70b7c 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1797,3 +1797,20 @@ bool drm_crtc_handle_vblank(struct drm_crtc *crtc)
 	return drm_handle_vblank(crtc->dev, drm_crtc_index(crtc));
 }
 EXPORT_SYMBOL(drm_crtc_handle_vblank);
+
+/**
+ * drm_vblank_no_hw_counter - "No hw counter" implementation of .get_vblank_counter()
+ * @dev: DRM device
+ * @pipe: CRTC for which to read the counter
+ *
+ * Drivers can plug this into the .get_vblank_counter() function if
+ * there is no useable hardware frame counter available.
+ *
+ * Returns:
+ * 0
+ */
+u32 drm_vblank_no_hw_counter(struct drm_device *dev, int pipe)
+{
+	return 0;
+}
+EXPORT_SYMBOL(drm_vblank_no_hw_counter);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index f0a5839..fb9cfc5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -447,7 +447,7 @@ static struct drm_driver exynos_drm_driver = {
 	.lastclose		= exynos_drm_lastclose,
 	.postclose		= exynos_drm_postclose,
 	.set_busid		= drm_platform_set_busid,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= exynos_drm_crtc_enable_vblank,
 	.disable_vblank		= exynos_drm_crtc_disable_vblank,
 	.gem_free_object	= exynos_drm_gem_free_object,
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
index 9a8e2da..1f4e8b9 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
@@ -192,7 +192,7 @@ static struct drm_driver fsl_dcu_drm_driver = {
 	.unload			= fsl_dcu_unload,
 	.preclose		= fsl_dcu_drm_preclose,
 	.irq_handler		= fsl_dcu_drm_irq,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= fsl_dcu_drm_enable_vblank,
 	.disable_vblank		= fsl_dcu_drm_disable_vblank,
 	.gem_free_object	= drm_gem_cma_free_object,
diff --git a/drivers/gpu/drm/imx/imx-drm-core.c b/drivers/gpu/drm/imx/imx-drm-core.c
index 74f505b..18a6642 100644
--- a/drivers/gpu/drm/imx/imx-drm-core.c
+++ b/drivers/gpu/drm/imx/imx-drm-core.c
@@ -487,7 +487,7 @@ static struct drm_driver imx_drm_driver = {
 	.gem_prime_vmap		= drm_gem_cma_prime_vmap,
 	.gem_prime_vunmap	= drm_gem_cma_prime_vunmap,
 	.gem_prime_mmap		= drm_gem_cma_prime_mmap,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= imx_drm_enable_vblank,
 	.disable_vblank		= imx_drm_disable_vblank,
 	.ioctls			= imx_drm_ioctls,
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 0339c5d..3eba23f 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -978,7 +978,7 @@ static struct drm_driver msm_driver = {
 	.irq_preinstall     = msm_irq_preinstall,
 	.irq_postinstall    = msm_irq_postinstall,
 	.irq_uninstall      = msm_irq_uninstall,
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank      = msm_enable_vblank,
 	.disable_vblank     = msm_disable_vblank,
 	.gem_free_object    = msm_gem_free_object,
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index ccefb64..2416c7d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -934,7 +934,7 @@ driver_stub = {
 	.debugfs_cleanup = nouveau_debugfs_takedown,
 #endif
 
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank = nouveau_display_vblank_enable,
 	.disable_vblank = nouveau_display_vblank_disable,
 	.get_scanout_position = nouveau_display_scanoutpos,
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index d685e23..4d58934 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -839,7 +839,7 @@ static struct drm_driver omap_drm_driver = {
 	.preclose = dev_preclose,
 	.postclose = dev_postclose,
 	.set_busid = drm_platform_set_busid,
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank = omap_irq_enable_vblank,
 	.disable_vblank = omap_irq_disable_vblank,
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 780ca11..3608e88 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -259,7 +259,7 @@ static struct drm_driver rcar_du_driver = {
 	.preclose		= rcar_du_preclose,
 	.lastclose		= rcar_du_lastclose,
 	.set_busid		= drm_platform_set_busid,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= rcar_du_enable_vblank,
 	.disable_vblank		= rcar_du_disable_vblank,
 	.gem_free_object	= drm_gem_cma_free_object,
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 9a0c291..b468add 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -277,7 +277,7 @@ static struct drm_driver rockchip_drm_driver = {
 	.load			= rockchip_drm_load,
 	.unload			= rockchip_drm_unload,
 	.lastclose		= rockchip_drm_lastclose,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= rockchip_drm_crtc_enable_vblank,
 	.disable_vblank		= rockchip_drm_crtc_disable_vblank,
 	.gem_vm_ops		= &rockchip_drm_vm_ops,
diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
index 666321d..108a03b 100644
--- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
+++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
@@ -269,7 +269,7 @@ static struct drm_driver shmob_drm_driver = {
 	.preclose		= shmob_drm_preclose,
 	.set_busid		= drm_platform_set_busid,
 	.irq_handler		= shmob_drm_irq,
-	.get_vblank_counter	= drm_vblank_count,
+	.get_vblank_counter	= drm_vblank_no_hw_counter,
 	.enable_vblank		= shmob_drm_enable_vblank,
 	.disable_vblank		= shmob_drm_disable_vblank,
 	.gem_free_object	= drm_gem_cma_free_object,
diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c
index 9f85988..f846996 100644
--- a/drivers/gpu/drm/sti/sti_drv.c
+++ b/drivers/gpu/drm/sti/sti_drv.c
@@ -201,7 +201,7 @@ static struct drm_driver sti_driver = {
 	.dumb_destroy = drm_gem_dumb_destroy,
 	.fops = &sti_driver_fops,
 
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank = sti_crtc_enable_vblank,
 	.disable_vblank = sti_crtc_disable_vblank,
 
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 0f283a3..7e0b0c5 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -563,7 +563,7 @@ static struct drm_driver tilcdc_driver = {
 	.irq_preinstall     = tilcdc_irq_preinstall,
 	.irq_postinstall    = tilcdc_irq_postinstall,
 	.irq_uninstall      = tilcdc_irq_uninstall,
-	.get_vblank_counter = drm_vblank_count,
+	.get_vblank_counter = drm_vblank_no_hw_counter,
 	.enable_vblank      = tilcdc_enable_vblank,
 	.disable_vblank     = tilcdc_disable_vblank,
 	.gem_free_object    = drm_gem_cma_free_object,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d0251ac..f563333 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -952,6 +952,7 @@ extern void drm_crtc_vblank_off(struct drm_crtc *crtc);
 extern void drm_crtc_vblank_reset(struct drm_crtc *crtc);
 extern void drm_crtc_vblank_on(struct drm_crtc *crtc);
 extern void drm_vblank_cleanup(struct drm_device *dev);
+extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, int pipe);
 
 extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
 						 unsigned int pipe, int *max_error,
