Few tests - Incomplete - drm_WARN_ON(!intel_irqs_enabled(dev_priv))
<7> [224.053690] i915 0000:00:02.0: [drm:intel_enable_shared_dpll [i915]] enabling TC PLL 3
<4> [224.054258] ------------[ cut here ]------------
<4> [224.054273] i915 0000:00:02.0: drm_WARN_ON(!intel_irqs_enabled(dev_priv))
<4> [224.054291] WARNING: CPU: 1 PID: 5249 at drivers/gpu/drm/i915/i915_irq.c:433 bdw_update_pipe_irq+0xc5/0x140 [i915]
<4> [224.054377] Modules linked in: i915(-) vgem fuse snd_hda_codec_hdmi mei_hdcp btusb btrtl btbcm btintel snd_intel_dspcfg bluetooth snd_hda_codec cdc_ether usbnet snd_hwdep x86_pkg_temp_thermal mii snd_hda_core coretemp crct10dif_pclmul crc32_pclmul ecdh_generic igc ecc ghash_clmulni_intel snd_pcm mei_me ptp ttm i2c_i801 mei pps_core i2c_smbus prime_numbers intel_lpss_pci [last unloaded: snd_hda_intel]
<4> [224.054459] CPU: 1 PID: 5249 Comm: kworker/1:6 Not tainted 5.14.0-rc6-CI-CI_DRM_10498+ #1
<4> [224.054464] Hardware name: Intel(R) Client Systems NUC11TNHi3/NUC11TNBi3, BIOS TNTGL357.0038.2020.1124.1648 11/24/2020
<4> [224.054466] Workqueue: events intel_dp_modeset_retry_work_fn [i915]
<4> [224.054581] RIP: 0010:bdw_update_pipe_irq+0xc5/0x140 [i915]
<4> [224.054653] Code: 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 14 b1 46 e1 48 c7 c1 80 ad 4d a0 48 89 da 48 c7 c7 4a 99 52 a0 48 89 c6 e8 7c 28 7d e1 <0f> 0b 5b 5d 41 5c 41 5d 41 5e c3 48 8d bf e0 8d 00 00 be ff ff ff
<4> [224.054657] RSP: 0018:ffffc9000153f9b8 EFLAGS: 00010086
<4> [224.054661] RAX: 0000000000000000 RBX: ffff8881031248b0 RCX: 0000000000000002
<4> [224.054664] RDX: 0000000080000002 RSI: ffffffff8230ce45 RDI: 00000000ffffffff
<4> [224.054667] RBP: 0000000000000001 R08: 0000000000000000 R09: c00000010000575a
<4> [224.054669] R10: 00000000004d6a78 R11: ffffc9000153f7d0 R12: 0000000080000000
<4> [224.054672] R13: ffff888133120000 R14: ffff888133120000 R15: 0000000080000000
<4> [224.054674] FS: 0000000000000000(0000) GS:ffff8884a0080000(0000) knlGS:0000000000000000
<4> [224.054677] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [224.054680] CR2: 000055f924a38d48 CR3: 0000000111636005 CR4: 0000000000770ee0
<4> [224.054683] PKRU: 55555554
<4> [224.054686] Call Trace:
<4> [224.054694] intel_set_cpu_fifo_underrun_reporting+0x154/0x3d0 [i915]
<4> [224.054808] intel_ddi_pre_enable+0x41/0xb40 [i915]
<4> [224.054922] intel_encoders_pre_enable+0x76/0x90 [i915]
<4> [224.055036] hsw_crtc_enable+0x91/0x720 [i915]
<4> [224.055159] intel_enable_crtc+0x53/0x70 [i915]
<4> [224.055272] skl_commit_modeset_enables+0x34a/0x530 [i915]
<4> [224.055394] intel_atomic_commit_tail+0x499/0x1650 [i915]
<4> [224.055513] ? intel_lpss_pci_driver_exit+0x124/0xf24 [intel_lpss_pci]
<4> [224.055529] intel_atomic_commit+0x363/0x3e0 [i915]
<4> [224.055638] drm_client_modeset_commit_atomic+0x22b/0x270
<4> [224.055655] drm_client_modeset_commit_locked+0x52/0x180
<4> [224.055660] drm_client_modeset_commit+0x1c/0x40
<4> [224.055664] __drm_fb_helper_restore_fbdev_mode_unlocked+0x88/0xb0
<4> [224.055669] drm_fb_helper_set_par+0x34/0x40
<4> [224.055672] drm_fb_helper_hotplug_event.part.24+0xb5/0xd0
<4> [224.055676] drm_kms_helper_hotplug_event+0x1e/0x30
<4> [224.055679] process_one_work+0x26d/0x5c0
<4> [224.055687] ? process_one_work+0x5c0/0x5c0
<4> [224.055690] worker_thread+0x37/0x390
<4> [224.055694] ? process_one_work+0x5c0/0x5c0
<4> [224.055697] kthread+0x13b/0x170
<4> [224.055700] ? set_kthread_struct+0x40/0x40
<4> [224.055705] ret_from_fork+0x1f/0x30
<4> [224.055718] irq event stamp: 98830
<4> [224.055719] hardirqs last enabled at (98829): [<ffffffff81ae8b00>] _raw_spin_unlock_irqrestore+0x50/0x60
<4> [224.055723] hardirqs last disabled at (98830): [<ffffffff81ae88c7>] _raw_spin_lock_irqsave+0x47/0x50
<4> [224.055725] softirqs last enabled at (97940): [<ffffffff81e0032d>] __do_softirq+0x32d/0x493
<4> [224.055727] softirqs last disabled at (97923): [<ffffffff810b75a8>] irq_exit_rcu+0xe8/0xf0
<4> [224.055730] ---[ end trace fa6bcb1c48d9f066 ]---Edited by LAKSHMINARAYANA VUDUM