Comment 1 for bug 2027848

[ 3.283014] i915 0000:00:02.0: drm_WARN_ON(val == 0xffffffff)
[ 3.283034] WARNING: CPU: 7 PID: 321 at drivers/gpu/drm/i915/display/intel_tc.c:702 tgl_tc_phy_init+0xe1/0x110 [i915]
[ 3.283338] Modules linked in: snd_pcm polyval_clmulni polyval_generic rtw88_8821ce snd_seq_midi rtw88_8821c kvm_intel rtw88_pci ghash_clmulni_intel snd_seq_midi_event sha512_ssse3 i915(+) binfmt_misc snd_rawmidi aesni_intel btusb rtw88_core crypto_simd btrtl kvm btbcm snd_seq uvcvideo btintel drm_buddy mei_pxp mei_hdcp irqbypass intel_rapl_msr cryptd videobuf2_vmalloc btmtk snd_seq_device mac80211 ttm nls_iso8859_1 uvc videobuf2_memops drm_display_helper bluetooth videobuf2_v4l2 cmdlinepart snd_timer videodev hp_wmi rapl input_leds cec sparse_keymap videobuf2_common ecdh_generic intel_cstate snd spi_nor processor_thermal_device_pci_legacy cfg80211 mc serio_raw platform_profile rc_core wmi_bmof mtd processor_thermal_device ee1004 ecc processor_thermal_rfim soundcore drm_kms_helper hid_multitouch mei_me libarc4 processor_thermal_mbox processor_thermal_rapl i2c_algo_bit mei intel_rapl_common igen6_edac intel_soc_dts_iosf int3400_thermal int3403_thermal dptf_pch_fivr acpi_thermal_rel int340x_thermal_zone acpi_pad mac_hid
[ 3.283408] wireless_hotkey sch_fq_codel msr parport_pc ppdev lp drm parport ramoops pstore_blk reed_solomon pstore_zone efi_pstore ip_tables x_tables autofs4 nvme nvme_core nvme_common hid_generic crc32_pclmul spi_intel_pci i2c_i801 intel_lpss_pci spi_intel i2c_smbus intel_lpss idma64 xhci_pci i2c_hid_acpi vmd xhci_pci_renesas i2c_hid hid video wmi pinctrl_tigerlake
[ 3.283440] CPU: 7 PID: 321 Comm: systemd-udevd Tainted: G U W 6.5.0-060500rc1-generic #202307092131
[ 3.283443] Hardware name: HP HP Laptop 15s-fq4xxx/89BC, BIOS F.31 03/25/2023
[ 3.283444] RIP: 0010:tgl_tc_phy_init+0xe1/0x110 [i915]
[ 3.283679] Code: 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 b8 02 09 d9 48 c7 c1 38 49 4a c1 4c 89 e2 48 c7 c7 b1 5b 4c c1 48 89 c6 e8 ff 5b 68 d8 <0f> 0b 48 8b 03 8b 70 7c 48 8b 38 e8 8f d5 f9 ff 89 c1 41 89 c4 c1
[ 3.283681] RSP: 0018:ffff9ab5004bb6f0 EFLAGS: 00010246
[ 3.283683] RAX: 0000000000000000 RBX: ffff8a21078e9800 RCX: 0000000000000000
[ 3.283685] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 3.283687] RBP: ffff9ab5004bb708 R08: 0000000000000000 R09: 0000000000000000
[ 3.283688] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a2101b26cc0
[ 3.283689] R13: ffff8a210b3d8000 R14: ffff8a21078e9810 R15: 0000000fffffffe0
[ 3.283691] FS: 00007f739cea98c0(0000) GS:ffff8a2277bc0000(0000) knlGS:0000000000000000
[ 3.283693] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.283695] CR2: 00007f5c26b0ee24 CR3: 000000011893a002 CR4: 0000000000770ee0
[ 3.283697] PKRU: 55555554
[ 3.283698] Call Trace:
[ 3.283699] <TASK>
[ 3.283701] ? show_regs+0x6d/0x80
[ 3.283707] ? __warn+0x89/0x160
[ 3.283711] ? tgl_tc_phy_init+0xe1/0x110 [i915]
[ 3.283937] ? report_bug+0x17e/0x1b0
[ 3.283943] ? handle_bug+0x46/0x90
[ 3.283946] ? exc_invalid_op+0x18/0x80
[ 3.283949] ? asm_exc_invalid_op+0x1b/0x20
[ 3.283952] ? tgl_tc_phy_init+0xe1/0x110 [i915]
[ 3.284168] intel_tc_port_init+0x183/0x240 [i915]
[ 3.284388] intel_ddi_init+0x7a8/0xea0 [i915]
[ 3.284634] intel_setup_outputs+0x35c/0xc70 [i915]
[ 3.284886] intel_display_driver_probe_nogem+0x16c/0x250 [i915]
[ 3.285115] i915_driver_probe+0x2fa/0x580 [i915]
[ 3.285281] ? drm_privacy_screen_get+0x16d/0x190 [drm]
[ 3.285336] ? acpi_dev_found+0x64/0x80
[ 3.285342] i915_pci_probe+0xd0/0x170 [i915]
[ 3.285511] local_pci_probe+0x44/0xb0
[ 3.285516] pci_call_probe+0x55/0x190
[ 3.285519] pci_device_probe+0x84/0x120
[ 3.285522] really_probe+0x1c9/0x430
[ 3.285525] __driver_probe_device+0x8c/0x190
[ 3.285529] driver_probe_device+0x24/0xd0
[ 3.285532] __driver_attach+0x10b/0x210
[ 3.285534] ? __pfx___driver_attach+0x10/0x10
[ 3.285537] bus_for_each_dev+0x8a/0xf0
[ 3.285542] driver_attach+0x1e/0x30
[ 3.285545] bus_add_driver+0x127/0x240
[ 3.285547] driver_register+0x5e/0x130
[ 3.285551] __pci_register_driver+0x62/0x70
[ 3.285555] i915_pci_register_driver+0x23/0x30 [i915]
[ 3.285719] i915_init+0x34/0x120 [i915]
[ 3.285897] ? __pfx_i915_init+0x10/0x10 [i915]
[ 3.286071] do_one_initcall+0x5b/0x340
[ 3.286077] do_init_module+0x68/0x260
[ 3.286080] load_module+0xb45/0xcd0
[ 3.286084] ? ima_post_read_file+0xea/0x110
[ 3.286089] init_module_from_file+0x97/0xe0
[ 3.286092] ? init_module_from_file+0x97/0xe0
[ 3.286097] idempotent_init_module+0x11c/0x2b0
[ 3.286102] __x64_sys_finit_module+0x64/0xd0
[ 3.286105] do_syscall_64+0x58/0x90
[ 3.286110] ? exit_to_user_mode_prepare+0x30/0xb0
[ 3.286114] ? syscall_exit_to_user_mode+0x29/0x50
[ 3.286117] ? do_syscall_64+0x67/0x90
[ 3.286121] ? exit_to_user_mode_prepare+0x30/0xb0
[ 3.286125] ? syscall_exit_to_user_mode+0x29/0x50
[ 3.286127] ? do_syscall_64+0x67/0x90
[ 3.286131] ? do_syscall_64+0x67/0x90
[ 3.286135] entry_SYSCALL_64_after_hwframe+0x6e/0xd8
[ 3.286139] RIP: 0033:0x7f739cd1ea3d
[ 3.286148] Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c3 a3 0f 00 f7 d8 64 89 01 48
[ 3.286150] RSP: 002b:00007ffcaf101798 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 3.286152] RAX: ffffffffffffffda RBX: 000055f1729e2b40 RCX: 00007f739cd1ea3d
[ 3.286154] RDX: 0000000000000000 RSI: 000055f1728b3f20 RDI: 0000000000000015
[ 3.286156] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000020
[ 3.286157] R10: 0000000000000015 R11: 0000000000000246 R12: 000055f1728b3f20
[ 3.286159] R13: 000055f1729e2120 R14: 0000000000000000 R15: 000055f1729e3a00
[ 3.286162] </TASK>
[ 3.286163] ---[ end trace 0000000000000000 ]---