mbox series

[SRU,OEM-5.14/OEM-5.17/Jammy,0/1] Fix i915 calltrace on new ADL BIOS

Message ID 20220530060110.584380-1-aaron.ma@canonical.com
Headers show
Series [OEM-5.14/Jammy,1/1] drm/i915: update new TMDS clock setting defined by VBT | expand

Message

Aaron Ma May 30, 2022, 6:01 a.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/1976214

[Impact]
Call trace on new ADL-U BIOS:
kernel: ------------[ cut here ]------------
kernel: Missing case (devdata->child.hdmi_max_data_rate == 3) 
kernel: WARNING: CPU: 8 PID: 491 at
drivers/gpu/drm/i915/display/intel_bios.c:1954
parse_ddi_port+0x724/0xab0 [i915]
kernel: Modules linked in: fjes(+) snd_intel_sdw_acpi iwlmvm(+)
snd_hda_codec intel_powerclamp snd_hda_core coretemp i915(+) mac80211
snd_hwdep libarc4 thinkpad_acpi(+) nvram snd_pcm drm_buddy
platform_profile ledtrig_audio ttm kv>
kernel:  think_lmi(+) syscopyarea serio_raw efi_pstore
firmware_attributes_class wmi_bmof mtd hid_multitouch ecc intel_cstate
joydev nci cfg80211 industrialio mei_me snd clk_tps68470 sysfillrect
videodev typec_ucsi intel_rapl_comm>
kernel: CPU: 8 PID: 491 Comm: systemd-udevd Not tainted
5.18.0-051800rc6-generic #202205082130
kernel: Hardware name: LENOVO 21CDSIT245/21CDSIT245, BIOS N3AET58W (1.23
) 04/15/2022
kernel: RIP: 0010:parse_ddi_port+0x724/0xab0 [i915]
kernel: calling  iwl_mvm_init+0x0/0x1000 [iwlmvm] @ 645
kernel: Code: 45 31 ed 45 0f b6 c9 e9 89 fa ff ff 0f b6 d0 48 c7 c6 90
c7 b8 c1 48 c7 c7 ea 2e b7 c1 4c 89 5d c8 4c 89 55 d0 e8 92 5c ee e0
<0f> 0b 4c 8b 55 d0 4c 8b 5d c8 e9 f8 fb ff ff 31 db e9 7d fa ff ff
kernel: RSP: 0018:ffffac58c136b910 EFLAGS: 00010282
kernel: RAX: 0000000000000000 RBX: 0000000000000009 RCX:
0000000000000027
kernel: RDX: ffff8e63376205a8 RSI: 0000000000000001 RDI:
ffff8e63376205a0
kernel: RBP: ffffac58c136b968 R08: 0000000000000003 R09:
0000000000000019
kernel: R10: 000000000000000a R11: 20676e697373694d R12:
ffff8e5c4e7c0000
kernel: R13: 0000000000000001 R14: 0000000000000000 R15:
0000000000000042
kernel: FS:  00007f17f9ba2880(0000) GS:ffff8e6337600000(0000)
knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000055695ac9c7c8 CR3: 0000000118806002 CR4:
0000000000770ee0
kernel: PKRU: 55555554
kernel: Call Trace:
kernel:  <TASK>
kernel:  intel_bios_init+0x4f5/0x6a0 [i915]
kernel:  intel_modeset_init_noirq+0x3a/0x260 [i915]
kernel:  i915_driver_probe+0x201/0x590 [i915]
kernel:  ? acpi_dev_found+0x66/0x70
kernel:  i915_pci_probe+0x58/0x140 [i915]
kernel:  local_pci_probe+0x48/0x90
kernel:  pci_call_probe+0x55/0x180
kernel:  pci_device_probe+0x84/0x110
kernel:  really_probe+0x1b3/0x390
kernel:  __driver_probe_device+0x96/0x190
kernel:  driver_probe_device+0x23/0xc0
kernel:  __driver_attach+0xbd/0x1d0
kernel:  ? __device_attach_driver+0x110/0x110
kernel:  bus_for_each_dev+0x7c/0xc0
kernel:  driver_attach+0x1e/0x30
kernel:  bus_add_driver+0x162/0x200
kernel:  driver_register+0x95/0xf0
kernel:  __pci_register_driver+0x68/0x70
kernel:  i915_pci_register_driver+0x23/0x30 [i915]
kernel:  i915_init+0x3b/0xeb [i915]
kernel:  ? 0xffffffffc1c70000
kernel:  do_one_initcall+0x46/0x210
kernel:  ? kmem_cache_alloc_trace+0x1a6/0x320
kernel:  do_init_module+0x52/0x260
kernel:  load_module+0xb81/0xc90
kernel:  __do_sys_finit_module+0xc5/0x130
kernel:  __x64_sys_finit_module+0x18/0x20
kernel:  do_syscall_64+0x59/0x80
kernel:  ? do_syscall_64+0x69/0x80
kernel:  ? irqentry_exit+0x35/0x40
kernel:  ? sysvec_reschedule_ipi+0x7b/0x120
kernel:  ? asm_sysvec_reschedule_ipi+0xa/0x20
kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae 
kernel: RIP: 0033:0x7f17f9e4b73d
kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 23 37 0d 00 f7 d8 64 89 01 48
kernel: RSP: 002b:00007ffc5d349e18 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
kernel: RAX: ffffffffffffffda RBX: 00005644ea7d3960 RCX:
00007f17f9e4b73d
kernel: RDX: 0000000000000000 RSI: 00005644ea7db9a0 RDI:
0000000000000019
kernel: RBP: 0000000000020000 R08: 0000000000000000 R09:
0000000000000000
kernel: R10: 0000000000000019 R11: 0000000000000246 R12:
00005644ea7db9a0
kernel: R13: 0000000000000000 R14: 00005644ea5aaf60 R15:
00005644ea7d3960
kernel:  </TASK>
kernel: ---[ end trace 0000000000000000 ]---

[Fix]
Update new TMDS clock setting defined by VBT to configure max
TMDS clock rate.

[Test]
Verified on hardware, no errors or calltrace.

[Where problems could occur]
Low risk, add new definition on new hardware. It may break i915 driver.

Backported in minor change because this part of code is made to a
function.

Lee Shawn C (1):
  drm/i915: update new TMDS clock setting defined by VBT

 drivers/gpu/drm/i915/display/intel_bios.c     | 9 +++++++++
 drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
 2 files changed, 12 insertions(+)

Comments

Cengiz Can May 30, 2022, 11:33 a.m. UTC | #1 
Acked-by: Cengiz Can <cengiz.can@canonical.com>

On Mon, 2022-05-30 at 14:01 +0800, Aaron Ma wrote:
> BugLink: https://bugs.launchpad.net/bugs/1976214
> 
> [Impact]
> Call trace on new ADL-U BIOS:
> kernel: ------------[ cut here ]------------
> kernel: Missing case (devdata->child.hdmi_max_data_rate == 3) 
> kernel: WARNING: CPU: 8 PID: 491 at
> drivers/gpu/drm/i915/display/intel_bios.c:1954
> parse_ddi_port+0x724/0xab0 [i915]
> kernel: Modules linked in: fjes(+) snd_intel_sdw_acpi iwlmvm(+)
> snd_hda_codec intel_powerclamp snd_hda_core coretemp i915(+) mac80211
> snd_hwdep libarc4 thinkpad_acpi(+) nvram snd_pcm drm_buddy
> platform_profile ledtrig_audio ttm kv>
> kernel:  think_lmi(+) syscopyarea serio_raw efi_pstore
> firmware_attributes_class wmi_bmof mtd hid_multitouch ecc intel_cstate
> joydev nci cfg80211 industrialio mei_me snd clk_tps68470 sysfillrect
> videodev typec_ucsi intel_rapl_comm>
> kernel: CPU: 8 PID: 491 Comm: systemd-udevd Not tainted
> 5.18.0-051800rc6-generic #202205082130
> kernel: Hardware name: LENOVO 21CDSIT245/21CDSIT245, BIOS N3AET58W (1.23
> ) 04/15/2022
> kernel: RIP: 0010:parse_ddi_port+0x724/0xab0 [i915]
> kernel: calling  iwl_mvm_init+0x0/0x1000 [iwlmvm] @ 645
> kernel: Code: 45 31 ed 45 0f b6 c9 e9 89 fa ff ff 0f b6 d0 48 c7 c6 90
> c7 b8 c1 48 c7 c7 ea 2e b7 c1 4c 89 5d c8 4c 89 55 d0 e8 92 5c ee e0
> <0f> 0b 4c 8b 55 d0 4c 8b 5d c8 e9 f8 fb ff ff 31 db e9 7d fa ff ff
> kernel: RSP: 0018:ffffac58c136b910 EFLAGS: 00010282
> kernel: RAX: 0000000000000000 RBX: 0000000000000009 RCX:
> 0000000000000027
> kernel: RDX: ffff8e63376205a8 RSI: 0000000000000001 RDI:
> ffff8e63376205a0
> kernel: RBP: ffffac58c136b968 R08: 0000000000000003 R09:
> 0000000000000019
> kernel: R10: 000000000000000a R11: 20676e697373694d R12:
> ffff8e5c4e7c0000
> kernel: R13: 0000000000000001 R14: 0000000000000000 R15:
> 0000000000000042
> kernel: FS:  00007f17f9ba2880(0000) GS:ffff8e6337600000(0000)
> knlGS:0000000000000000
> kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> kernel: CR2: 000055695ac9c7c8 CR3: 0000000118806002 CR4:
> 0000000000770ee0
> kernel: PKRU: 55555554
> kernel: Call Trace:
> kernel:  <TASK>
> kernel:  intel_bios_init+0x4f5/0x6a0 [i915]
> kernel:  intel_modeset_init_noirq+0x3a/0x260 [i915]
> kernel:  i915_driver_probe+0x201/0x590 [i915]
> kernel:  ? acpi_dev_found+0x66/0x70
> kernel:  i915_pci_probe+0x58/0x140 [i915]
> kernel:  local_pci_probe+0x48/0x90
> kernel:  pci_call_probe+0x55/0x180
> kernel:  pci_device_probe+0x84/0x110
> kernel:  really_probe+0x1b3/0x390
> kernel:  __driver_probe_device+0x96/0x190
> kernel:  driver_probe_device+0x23/0xc0
> kernel:  __driver_attach+0xbd/0x1d0
> kernel:  ? __device_attach_driver+0x110/0x110
> kernel:  bus_for_each_dev+0x7c/0xc0
> kernel:  driver_attach+0x1e/0x30
> kernel:  bus_add_driver+0x162/0x200
> kernel:  driver_register+0x95/0xf0
> kernel:  __pci_register_driver+0x68/0x70
> kernel:  i915_pci_register_driver+0x23/0x30 [i915]
> kernel:  i915_init+0x3b/0xeb [i915]
> kernel:  ? 0xffffffffc1c70000
> kernel:  do_one_initcall+0x46/0x210
> kernel:  ? kmem_cache_alloc_trace+0x1a6/0x320
> kernel:  do_init_module+0x52/0x260
> kernel:  load_module+0xb81/0xc90
> kernel:  __do_sys_finit_module+0xc5/0x130
> kernel:  __x64_sys_finit_module+0x18/0x20
> kernel:  do_syscall_64+0x59/0x80
> kernel:  ? do_syscall_64+0x69/0x80
> kernel:  ? irqentry_exit+0x35/0x40
> kernel:  ? sysvec_reschedule_ipi+0x7b/0x120
> kernel:  ? asm_sysvec_reschedule_ipi+0xa/0x20
> kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae 
> kernel: RIP: 0033:0x7f17f9e4b73d
> kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 23 37 0d 00 f7 d8 64 89 01 48
> kernel: RSP: 002b:00007ffc5d349e18 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000139
> kernel: RAX: ffffffffffffffda RBX: 00005644ea7d3960 RCX:
> 00007f17f9e4b73d
> kernel: RDX: 0000000000000000 RSI: 00005644ea7db9a0 RDI:
> 0000000000000019
> kernel: RBP: 0000000000020000 R08: 0000000000000000 R09:
> 0000000000000000
> kernel: R10: 0000000000000019 R11: 0000000000000246 R12:
> 00005644ea7db9a0
> kernel: R13: 0000000000000000 R14: 00005644ea5aaf60 R15:
> 00005644ea7d3960
> kernel:  </TASK>
> kernel: ---[ end trace 0000000000000000 ]---
> 
> [Fix]
> Update new TMDS clock setting defined by VBT to configure max
> TMDS clock rate.
> 
> [Test]
> Verified on hardware, no errors or calltrace.
> 
> [Where problems could occur]
> Low risk, add new definition on new hardware. It may break i915 driver.
> 
> Backported in minor change because this part of code is made to a
> function.
> 
> Lee Shawn C (1):
>   drm/i915: update new TMDS clock setting defined by VBT
> 
>  drivers/gpu/drm/i915/display/intel_bios.c     | 9 +++++++++
>  drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
>  2 files changed, 12 insertions(+)
> 
> -- 
> 2.34.1
> 
>
Tim Gardner May 30, 2022, 6:36 p.m. UTC | #2 
Acked-by: Tim Gardner <tim.gardner@canonical.com>

On 5/30/22 00:01, Aaron Ma wrote:
> BugLink: https://bugs.launchpad.net/bugs/1976214
> 
> [Impact]
> Call trace on new ADL-U BIOS:
> kernel: ------------[ cut here ]------------
> kernel: Missing case (devdata->child.hdmi_max_data_rate == 3)
> kernel: WARNING: CPU: 8 PID: 491 at
> drivers/gpu/drm/i915/display/intel_bios.c:1954
> parse_ddi_port+0x724/0xab0 [i915]
> kernel: Modules linked in: fjes(+) snd_intel_sdw_acpi iwlmvm(+)
> snd_hda_codec intel_powerclamp snd_hda_core coretemp i915(+) mac80211
> snd_hwdep libarc4 thinkpad_acpi(+) nvram snd_pcm drm_buddy
> platform_profile ledtrig_audio ttm kv>
> kernel:  think_lmi(+) syscopyarea serio_raw efi_pstore
> firmware_attributes_class wmi_bmof mtd hid_multitouch ecc intel_cstate
> joydev nci cfg80211 industrialio mei_me snd clk_tps68470 sysfillrect
> videodev typec_ucsi intel_rapl_comm>
> kernel: CPU: 8 PID: 491 Comm: systemd-udevd Not tainted
> 5.18.0-051800rc6-generic #202205082130
> kernel: Hardware name: LENOVO 21CDSIT245/21CDSIT245, BIOS N3AET58W (1.23
> ) 04/15/2022
> kernel: RIP: 0010:parse_ddi_port+0x724/0xab0 [i915]
> kernel: calling  iwl_mvm_init+0x0/0x1000 [iwlmvm] @ 645
> kernel: Code: 45 31 ed 45 0f b6 c9 e9 89 fa ff ff 0f b6 d0 48 c7 c6 90
> c7 b8 c1 48 c7 c7 ea 2e b7 c1 4c 89 5d c8 4c 89 55 d0 e8 92 5c ee e0
> <0f> 0b 4c 8b 55 d0 4c 8b 5d c8 e9 f8 fb ff ff 31 db e9 7d fa ff ff
> kernel: RSP: 0018:ffffac58c136b910 EFLAGS: 00010282
> kernel: RAX: 0000000000000000 RBX: 0000000000000009 RCX:
> 0000000000000027
> kernel: RDX: ffff8e63376205a8 RSI: 0000000000000001 RDI:
> ffff8e63376205a0
> kernel: RBP: ffffac58c136b968 R08: 0000000000000003 R09:
> 0000000000000019
> kernel: R10: 000000000000000a R11: 20676e697373694d R12:
> ffff8e5c4e7c0000
> kernel: R13: 0000000000000001 R14: 0000000000000000 R15:
> 0000000000000042
> kernel: FS:  00007f17f9ba2880(0000) GS:ffff8e6337600000(0000)
> knlGS:0000000000000000
> kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> kernel: CR2: 000055695ac9c7c8 CR3: 0000000118806002 CR4:
> 0000000000770ee0
> kernel: PKRU: 55555554
> kernel: Call Trace:
> kernel:  <TASK>
> kernel:  intel_bios_init+0x4f5/0x6a0 [i915]
> kernel:  intel_modeset_init_noirq+0x3a/0x260 [i915]
> kernel:  i915_driver_probe+0x201/0x590 [i915]
> kernel:  ? acpi_dev_found+0x66/0x70
> kernel:  i915_pci_probe+0x58/0x140 [i915]
> kernel:  local_pci_probe+0x48/0x90
> kernel:  pci_call_probe+0x55/0x180
> kernel:  pci_device_probe+0x84/0x110
> kernel:  really_probe+0x1b3/0x390
> kernel:  __driver_probe_device+0x96/0x190
> kernel:  driver_probe_device+0x23/0xc0
> kernel:  __driver_attach+0xbd/0x1d0
> kernel:  ? __device_attach_driver+0x110/0x110
> kernel:  bus_for_each_dev+0x7c/0xc0
> kernel:  driver_attach+0x1e/0x30
> kernel:  bus_add_driver+0x162/0x200
> kernel:  driver_register+0x95/0xf0
> kernel:  __pci_register_driver+0x68/0x70
> kernel:  i915_pci_register_driver+0x23/0x30 [i915]
> kernel:  i915_init+0x3b/0xeb [i915]
> kernel:  ? 0xffffffffc1c70000
> kernel:  do_one_initcall+0x46/0x210
> kernel:  ? kmem_cache_alloc_trace+0x1a6/0x320
> kernel:  do_init_module+0x52/0x260
> kernel:  load_module+0xb81/0xc90
> kernel:  __do_sys_finit_module+0xc5/0x130
> kernel:  __x64_sys_finit_module+0x18/0x20
> kernel:  do_syscall_64+0x59/0x80
> kernel:  ? do_syscall_64+0x69/0x80
> kernel:  ? irqentry_exit+0x35/0x40
> kernel:  ? sysvec_reschedule_ipi+0x7b/0x120
> kernel:  ? asm_sysvec_reschedule_ipi+0xa/0x20
> kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
> kernel: RIP: 0033:0x7f17f9e4b73d
> kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 23 37 0d 00 f7 d8 64 89 01 48
> kernel: RSP: 002b:00007ffc5d349e18 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000139
> kernel: RAX: ffffffffffffffda RBX: 00005644ea7d3960 RCX:
> 00007f17f9e4b73d
> kernel: RDX: 0000000000000000 RSI: 00005644ea7db9a0 RDI:
> 0000000000000019
> kernel: RBP: 0000000000020000 R08: 0000000000000000 R09:
> 0000000000000000
> kernel: R10: 0000000000000019 R11: 0000000000000246 R12:
> 00005644ea7db9a0
> kernel: R13: 0000000000000000 R14: 00005644ea5aaf60 R15:
> 00005644ea7d3960
> kernel:  </TASK>
> kernel: ---[ end trace 0000000000000000 ]---
> 
> [Fix]
> Update new TMDS clock setting defined by VBT to configure max
> TMDS clock rate.
> 
> [Test]
> Verified on hardware, no errors or calltrace.
> 
> [Where problems could occur]
> Low risk, add new definition on new hardware. It may break i915 driver.
> 
> Backported in minor change because this part of code is made to a
> function.
> 
> Lee Shawn C (1):
>    drm/i915: update new TMDS clock setting defined by VBT
> 
>   drivers/gpu/drm/i915/display/intel_bios.c     | 9 +++++++++
>   drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
>   2 files changed, 12 insertions(+)
>
Timo Aaltonen June 7, 2022, 10:01 a.m. UTC | #3 
Aaron Ma kirjoitti 30.5.2022 klo 9.01:
> BugLink: https://bugs.launchpad.net/bugs/1976214
> 
> [Impact]
> Call trace on new ADL-U BIOS:
> kernel: ------------[ cut here ]------------
> kernel: Missing case (devdata->child.hdmi_max_data_rate == 3)
> kernel: WARNING: CPU: 8 PID: 491 at
> drivers/gpu/drm/i915/display/intel_bios.c:1954
> parse_ddi_port+0x724/0xab0 [i915]
> kernel: Modules linked in: fjes(+) snd_intel_sdw_acpi iwlmvm(+)
> snd_hda_codec intel_powerclamp snd_hda_core coretemp i915(+) mac80211
> snd_hwdep libarc4 thinkpad_acpi(+) nvram snd_pcm drm_buddy
> platform_profile ledtrig_audio ttm kv>
> kernel:  think_lmi(+) syscopyarea serio_raw efi_pstore
> firmware_attributes_class wmi_bmof mtd hid_multitouch ecc intel_cstate
> joydev nci cfg80211 industrialio mei_me snd clk_tps68470 sysfillrect
> videodev typec_ucsi intel_rapl_comm>
> kernel: CPU: 8 PID: 491 Comm: systemd-udevd Not tainted
> 5.18.0-051800rc6-generic #202205082130
> kernel: Hardware name: LENOVO 21CDSIT245/21CDSIT245, BIOS N3AET58W (1.23
> ) 04/15/2022
> kernel: RIP: 0010:parse_ddi_port+0x724/0xab0 [i915]
> kernel: calling  iwl_mvm_init+0x0/0x1000 [iwlmvm] @ 645
> kernel: Code: 45 31 ed 45 0f b6 c9 e9 89 fa ff ff 0f b6 d0 48 c7 c6 90
> c7 b8 c1 48 c7 c7 ea 2e b7 c1 4c 89 5d c8 4c 89 55 d0 e8 92 5c ee e0
> <0f> 0b 4c 8b 55 d0 4c 8b 5d c8 e9 f8 fb ff ff 31 db e9 7d fa ff ff
> kernel: RSP: 0018:ffffac58c136b910 EFLAGS: 00010282
> kernel: RAX: 0000000000000000 RBX: 0000000000000009 RCX:
> 0000000000000027
> kernel: RDX: ffff8e63376205a8 RSI: 0000000000000001 RDI:
> ffff8e63376205a0
> kernel: RBP: ffffac58c136b968 R08: 0000000000000003 R09:
> 0000000000000019
> kernel: R10: 000000000000000a R11: 20676e697373694d R12:
> ffff8e5c4e7c0000
> kernel: R13: 0000000000000001 R14: 0000000000000000 R15:
> 0000000000000042
> kernel: FS:  00007f17f9ba2880(0000) GS:ffff8e6337600000(0000)
> knlGS:0000000000000000
> kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> kernel: CR2: 000055695ac9c7c8 CR3: 0000000118806002 CR4:
> 0000000000770ee0
> kernel: PKRU: 55555554
> kernel: Call Trace:
> kernel:  <TASK>
> kernel:  intel_bios_init+0x4f5/0x6a0 [i915]
> kernel:  intel_modeset_init_noirq+0x3a/0x260 [i915]
> kernel:  i915_driver_probe+0x201/0x590 [i915]
> kernel:  ? acpi_dev_found+0x66/0x70
> kernel:  i915_pci_probe+0x58/0x140 [i915]
> kernel:  local_pci_probe+0x48/0x90
> kernel:  pci_call_probe+0x55/0x180
> kernel:  pci_device_probe+0x84/0x110
> kernel:  really_probe+0x1b3/0x390
> kernel:  __driver_probe_device+0x96/0x190
> kernel:  driver_probe_device+0x23/0xc0
> kernel:  __driver_attach+0xbd/0x1d0
> kernel:  ? __device_attach_driver+0x110/0x110
> kernel:  bus_for_each_dev+0x7c/0xc0
> kernel:  driver_attach+0x1e/0x30
> kernel:  bus_add_driver+0x162/0x200
> kernel:  driver_register+0x95/0xf0
> kernel:  __pci_register_driver+0x68/0x70
> kernel:  i915_pci_register_driver+0x23/0x30 [i915]
> kernel:  i915_init+0x3b/0xeb [i915]
> kernel:  ? 0xffffffffc1c70000
> kernel:  do_one_initcall+0x46/0x210
> kernel:  ? kmem_cache_alloc_trace+0x1a6/0x320
> kernel:  do_init_module+0x52/0x260
> kernel:  load_module+0xb81/0xc90
> kernel:  __do_sys_finit_module+0xc5/0x130
> kernel:  __x64_sys_finit_module+0x18/0x20
> kernel:  do_syscall_64+0x59/0x80
> kernel:  ? do_syscall_64+0x69/0x80
> kernel:  ? irqentry_exit+0x35/0x40
> kernel:  ? sysvec_reschedule_ipi+0x7b/0x120
> kernel:  ? asm_sysvec_reschedule_ipi+0xa/0x20
> kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xae
> kernel: RIP: 0033:0x7f17f9e4b73d
> kernel: Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 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 23 37 0d 00 f7 d8 64 89 01 48
> kernel: RSP: 002b:00007ffc5d349e18 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000139
> kernel: RAX: ffffffffffffffda RBX: 00005644ea7d3960 RCX:
> 00007f17f9e4b73d
> kernel: RDX: 0000000000000000 RSI: 00005644ea7db9a0 RDI:
> 0000000000000019
> kernel: RBP: 0000000000020000 R08: 0000000000000000 R09:
> 0000000000000000
> kernel: R10: 0000000000000019 R11: 0000000000000246 R12:
> 00005644ea7db9a0
> kernel: R13: 0000000000000000 R14: 00005644ea5aaf60 R15:
> 00005644ea7d3960
> kernel:  </TASK>
> kernel: ---[ end trace 0000000000000000 ]---
> 
> [Fix]
> Update new TMDS clock setting defined by VBT to configure max
> TMDS clock rate.
> 
> [Test]
> Verified on hardware, no errors or calltrace.
> 
> [Where problems could occur]
> Low risk, add new definition on new hardware. It may break i915 driver.
> 
> Backported in minor change because this part of code is made to a
> function.
> 
> Lee Shawn C (1):
>    drm/i915: update new TMDS clock setting defined by VBT
> 
>   drivers/gpu/drm/i915/display/intel_bios.c     | 9 +++++++++
>   drivers/gpu/drm/i915/display/intel_vbt_defs.h | 3 +++
>   2 files changed, 12 insertions(+)
> 

applied to oem-kernels, thanks