Function prototype or declaration at include/drm/drm_vblank.h, line 198 References: drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c, line 241 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c, line 500 drivers/gpu/drm/arm/hdlcd_drv.c, line 315 drivers/gpu/drm/arm/malidp_drv.c, line 617 drivers/gpu/drm/armada/armada_drv.c, line 128 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c, line 636 drivers/gpu/drm/drm_vblank.c, line 435 drivers/gpu/drm/drm_vblank.c, line 480 drivers/gpu/drm/exynos/exynos_drm_drv.c, line 375 drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c, line 74 drivers/gpu/drm/gma500/psb_drv.c, line 348 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c, line 301 drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c, line 84 drivers/gpu/drm/i915/i915_drv.c, line 658 drivers/gpu/drm/imx/imx-drm-core.c, line 264 drivers/gpu/drm/mediatek/mtk_drm_drv.c, line 253 drivers/gpu/drm/meson/meson_drv.c, line 241 drivers/gpu/drm/mga/mga_dma.c, line 427 drivers/gpu/drm/msm/msm_drv.c, line 447 drivers/gpu/drm/mxsfb/mxsfb_drv.c, line 199 drivers/gpu/drm/nouveau/nouveau_display.c, line 189 drivers/gpu/drm/omapdrm/omap_drv.c, line 570 drivers/gpu/drm/pl111/pl111_drv.c, line 187 drivers/gpu/drm/r128/r128_drv.c, line 86 drivers/gpu/drm/radeon/radeon_irq_kms.c, line 291 drivers/gpu/drm/rcar-du/rcar_du_kms.c, line 535 drivers/gpu/drm/rockchip/rockchip_drm_drv.c, line 152 drivers/gpu/drm/shmobile/shmob_drm_drv.c, line 269 drivers/gpu/drm/sti/sti_compositor.c, line 146 drivers/gpu/drm/sun4i/sun4i_drv.c, line 114 drivers/gpu/drm/tegra/drm.c, line 174 drivers/gpu/drm/tilcdc/tilcdc_drv.c, line 385 drivers/gpu/drm/tve200/tve200_drv.c, line 122 drivers/gpu/drm/vc4/vc4_kms.c, line 421 drivers/gpu/drm/via/via_map.c, line 110 drivers/gpu/drm/vkms/vkms_drv.c, line 120 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c, line 503 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c, line 505 drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c, line 968 drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c, line 1904 drivers/gpu/drm/zte/zx_drm_drv.c, line 89 include/drm/drm_vblank.h, line 198