[Bug 2063096] Re: RTL8852BE fw security fail then lost WIFI function during suspend/resume cycle

This bug is awaiting verification that the linux-
azure-5.15/5.15.0-1065.74~20.04.1 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-focal-linux-
azure-5.15' to 'verification-done-focal-linux-azure-5.15'. If the
problem still exists, change the tag 'verification-needed-focal-linux-
azure-5.15' to 'verification-failed-focal-linux-azure-5.15'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-focal-linux-azure-5.15-v2 verification-needed-focal-linux-azure-5.15

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https://bugs.launchpad.net/bugs/2063096

Title:
RTL8852BE fw security fail then lost WIFI function during
suspend/resume cycle

Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Committed
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Committed
Status in linux-oem-6.5 source package in Jammy:
Fix Released
Status in linux source package in Mantic:
Fix Committed
Status in linux-oem-6.5 source package in Mantic:
Invalid
Status in linux source package in Noble:
Fix Committed
Status in linux-oem-6.5 source package in Noble:
Invalid

Bug description:
[Impact]

On a Dell laptop, When we do suspend/resume test, we found the
realtek wifi couldn't work after resume, from the dmesg, we found
the error log as below:
Log:
三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: fw security fail
三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: download firmware fail
三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: [ERR]fwdl 0x1E0 = 0x62
三 05 15:08:02 u-Precision-3591 kernel: rtw89_8852be 0000:02:00.0: [ERR]fwdl 0x83F2 = 0x8

[Fix]

Backport a commit from mainline kernel (linux-next), this will retry firmware
loading for 5 times.

[Test Case]

run suspend/resume test case for over 100 times, the wifi still
works.

[Where problems could occur]

This commit comes from mailine kernel, and it doesn't change existing
driver except loading firmware a couple of more times if there is an error.
In theory this will not introduce regression.

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