** Changed in: linux-oem-6.0 (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1990700
Title:
Fibocom WWAN FM350-GL suspend error (notebook not suspend)
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.0 source package in Jammy:
Fix Committed
Status in linux source package in Kinetic:
In Progress
Status in linux-oem-6.0 source package in Kinetic:
Invalid
Status in linux source package in Lunar:
In Progress
Status in linux-oem-6.0 source package in Lunar:
Invalid
Bug description:
[SRU Justification]
[Impact]
Fibocom WWAN FM350-GL equipped platform fails to suspend.
[Fix]
Full t7xx driver is still under development and some of them have
already accepted and merged in mainline kernel. The following commits
are once in the mainline and are reverted in v6.0:
d20ef656f994 net: wwan: t7xx: Add AP CLDMA
007f26f0d68e net: wwan: t7xx: Infrastructure for early port configuration
140424d90165 net: wwan: t7xx: PCIe reset rescan
87dae9e70bf7 net: wwan: t7xx: Enable devlink based fw flashing and
coredump collection
The first patch implemented the other AP-CLDMA, and with that applied,
platforms in question may suspend and resume normally as every bits are in
position.
However, while these patches had been reverted for another revision
that is still being worked on by the hardware vendor, a minimum,
sauced patch is created to work-around this first to meet project
schedules, and will be reverted and superseded with a final, mainline
landing revision.
[Test Case]
Trigger suspend and there should be no more suspend errors from t7xx:
mtk_t7xx 0000:58:00.0: [PM] SAP suspend error: -110
mtk_t7xx 0000:58:00.0: PM: pci_pm_suspend(): t7xx_pci_pm_suspend+0x0/0x20
[mtk_t7xx] returns -110
mtk_t7xx 0000:58:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1a0
returns -110
mtk_t7xx 0000:58:00.0: PM: failed to suspend async: error -110
[Where problems could occur]
The t7xx driver is still incomplete and we're staging aforementioned 4
patches in internal experimental kernels for development use.
[Other Info]
This affects Kinetic and above, so only Unstable, Kinetic and OEM-6.0
are nominated for fix.
========== original bug report ==========
Hi,
I found a "little" problem with Fibocom WWAN FM350-GL 5G modem in module
mtk_t7xx . Power management for this modem is bad. When the notebook goes to
sleep/suspend, kernel module mtk_t7xx return an error:
mtk_t7xx 0000:58:00.0: [PM] SAP suspend error: -110
mtk_t7xx 0000:58:00.0: PM: pci_pm_suspend(): t7xx_pci_pm_suspend+0x0/0x20
[mtk_t7xx] returns -110
mtk_t7xx 0000:58:00.0: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1a0
returns -110
mtk_t7xx 0000:58:00.0: PM: failed to suspend async: error -110
So power management failed to suspend:
PM: Some devices failed to suspend, or early wake event detected
And the notebook not suspend and wake up again.
It must be this module, because if I remove the module first (modprobe -r),
the laptop goes to sleep and wakes up normally.
However, after reinserting the module, the modem no longer appears in the
system.
Expected state: sleep occurs when the device is put to sleep -
including the modem. When you wake up, you will wake up, including
activating the modem and logging into the operator's network.
Description: Ubuntu 20.04.5 LTS
Release: 20.04
lspci -v:
58:00.0 Wireless controller [0d40]: MEDIATEK Corp. Device 4d75 (rev 01)
Subsystem: Device 1cf8:3500
Flags: bus master, fast devsel, latency 0, IRQ 17
Memory at 601e800000 (64-bit, prefetchable) [size=32K]
Memory at 5e800000 (64-bit, non-prefetchable) [size=8M]
Memory at 601e000000 (64-bit, prefetchable) [size=8M]
Capabilities: [80] Express Endpoint, MSI 00
Capabilities: [d0] MSI-X: Enable+ Count=34 Masked-
Capabilities: [e0] MSI: Enable- Count=1/32 Maskable+ 64bit+
Capabilities: [f8] Power Management version 3
Capabilities: [100] Vendor Specific Information: ID=1556 Rev=1
Len=008 <?>
Capabilities: [108] Latency Tolerance Reporting
Capabilities: [110] L1 PM Substates
Capabilities: [200] Advanced Error Reporting
Capabilities: [300] Secondary PCI Express
Kernel driver in use: mtk_t7xx
Kernel modules: mtk_t7xx
lshw:
*-generic
description: Wireless controller
product: MEDIATEK Corp.
vendor: MEDIATEK Corp.
physical id: 0
bus info: pci@0000:58:00.0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pciexpress msix msi pm bus_master cap_list
configuration: driver=mtk_t7xx latency=0
resources: iomemory:600-5ff iomemory:600-5ff irq:17
memory:601e800000-601e807fff memory:5e800000-5effffff
memory:601e000000-601e7fffff
modinfo:
modinfo mtk_t7xx
filename:
/lib/modules/5.19.10-051910-generic/kernel/drivers/net/wwan/t7xx/mtk_t7xx.ko
license: GPL
description: MediaTek PCIe 5G WWAN modem T7xx driver
author: MediaTek Inc
srcversion: 5FA53465EA0167231B632D4
alias: pci:v000014C3d00004D75sv*sd*bc*sc*i*
depends:
retpoline: Y
intree: Y
name: mtk_t7xx
vermagic: 5.19.10-051910-generic SMP preempt mod_unload modversions
sig_id: PKCS#7
signer: Build time autogenerated kernel key
sig_key: 7E:38:36:48:BB:F2:74:0E:30:57:1B:6E:64:90:57:55:30:C5:AF:45
sig_hashalgo: sha512
signature: 78:1B:C9:7F:DE:D2:BE:87:EA:17:94:14:C2:51:3E:2C:75:03:76:0F:
36:96:92:9B:88:48:B0:C8:73:E6:88:E4:A2:61:25:E9:16:E8:87:40:
45:99:CC:50:FD:21:B0:BB:11:0E:B5:8F:CC:5F:47:7A:5E:00:BF:7D:
77:50:A1:F5:00:24:DC:EF:E6:3E:A0:3B:0A:D7:2E:84:EC:FC:6B:4D:
9E:42:CD:A2:07:C3:D9:F8:6E:7B:76:12:7F:B9:9B:70:6A:22:3D:09:
4D:04:98:59:35:2A:95:D1:9A:B3:53:77:BE:E5:3E:50:51:18:D0:CE:
9A:DB:3B:0E:DA:4D:05:5D:D1:5F:4F:6B:DB:98:47:F3:32:25:D8:AD:
4E:CE:5F:3E:46:76:D9:F4:FA:28:F2:49:B3:3D:D1:5F:74:CF:69:39:
D2:B0:64:3D:41:FB:55:1F:AB:D3:76:65:54:C6:06:6E:F7:01:F2:F7:
CE:CF:6C:76:17:1B:AD:41:69:29:FB:F8:6B:F9:74:3F:65:6B:C5:63:
98:76:D1:69:24:AA:7E:9D:D0:27:BF:AF:0B:C9:30:3C:1B:2A:AB:B9:
29:22:D5:6B:16:AB:22:43:16:A0:F6:94:EA:78:E7:54:5F:9B:2D:DA:
2E:9B:9F:81:E4:E0:B7:93:ED:9D:8F:79:19:1A:03:2C:00:C5:3A:99:
A4:D0:14:6D:21:61:41:02:EC:8D:48:D5:13:0F:D7:AB:5E:B9:BF:17:
FA:F3:8C:DE:62:A3:F1:5C:33:9C:FB:72:2F:BF:9F:BD:35:BC:F6:D4:
DE:69:68:A7:80:FE:4C:ED:F8:02:97:66:CA:D0:7A:49:4A:A8:D5:C5:
67:48:31:42:F9:41:FB:1A:74:52:97:6D:28:A0:2B:03:DA:73:BF:27:
0E:84:45:33:40:2D:2F:A9:2C:0D:3A:A5:52:93:1B:E8:6D:27:CD:70:
7E:56:CF:0C:8E:C7:6C:E0:A7:16:2A:FF:95:C5:DE:B7:97:D5:FB:92:
28:EE:C6:98:1B:D7:06:A3:9D:26:31:09:1E:A8:09:D4:CF:0F:6C:4F:
C5:EA:2E:BF:5E:02:02:54:15:A7:A7:86:07:B7:82:3B:C6:68:4A:2F:
23:BB:DE:45:3D:52:0E:F2:D8:3B:57:E3:2B:AE:51:2A:E3:D1:DE:B7:
F0:40:5A:0E:F4:8C:3F:40:0D:57:05:4C:5F:F3:32:8E:4A:A3:56:69:
18:47:8A:F1:91:A2:D6:5F:E9:B3:63:DF:9A:68:0E:F6:37:17:F9:62:
D8:50:60:AA:E1:45:1C:3E:FA:23:66:CE:6E:19:1C:B0:51:51:C1:CF:
4E:D7:71:24:07:52:7E:7F:F6:78:FF:7E
mmcli -L:
/org/freedesktop/ModemManager1/Modem/0 [generic] MBIM [14C3:4D75]
Any idea?
Thank you.
With best regards Jan
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2021-04-10 (532 days ago)
InstallationMedia: Kubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64
(20210209.1)
Package: linux (not installed)
ProcEnviron:
LANGUAGE=cs:en_US
TERM=xterm-256color
PATH=(custom, no user)
LANG=cs_CZ.UTF-8
SHELL=/bin/bash
Tags: focal
Uname: Linux 5.19.10-051910-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: Upgraded to focal on 2022-09-22 (1 days ago)
UserGroups: N/A
_MarkForUpload: True
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