Linux kernel bug fix: drm/mediatek: Add vblank register/unregister callback functions
Subsystem: gpu (drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c)
Bug type: crash, severity: high
Files changed: drivers/gpu/drm/mediatek/mtk_disp_drv.h;drivers/gpu/drm/mediatek/mtk_disp_ovl.c;drivers/gpu/drm/mediatek/mtk_disp_rdma.c;drivers/gpu/drm/mediatek/mtk_drm_crtc.c;drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c;drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
Introduced by CK Hu on 2021-01-07 06:28:16 +0800; fixed by Rex-BC Chen on 2022-04-06 07:10:26 +0800 (lifetime: 454 days)