[Bug 2092746] Re: mt7925: system will sometimes hang while rebooting

** Also affects: linux (Ubuntu Oracular)
Importance: Undecided
Status: New

** Also affects: linux-oem-6.11 (Ubuntu Oracular)
Importance: Undecided
Status: New

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https://bugs.launchpad.net/bugs/2092746

Title:
mt7925: system will sometimes hang while rebooting

Status in HWE Next:
New
Status in linux package in Ubuntu:
New
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Invalid
Status in linux-oem-6.11 source package in Noble:
New
Status in linux source package in Oracular:
New
Status in linux-oem-6.11 source package in Oracular:
New
Status in linux source package in Plucky:
New
Status in linux-oem-6.11 source package in Plucky:
Invalid

Bug description:
[Impact]
In a MT7925 Dell Platform device, the system would hang when running Checkbox's warm-boot test with failure rate 5/30.

[Fix]
Cherry-pick the following patches from mainline kernel:

defc33b5541e Bluetooth: btusb: mediatek: change the conditions for ISO interface
489304e67087 Bluetooth: btusb: mediatek: add intf release flow when usb disconnect
cea1805f165c Bluetooth: btusb: mediatek: add callback function in btusb_disconnect
ad0c6f603bb0 Bluetooth: btusb: mediatek: move Bluetooth power off command position

[Test Plan]
1. Boot into Ubuntu OS with 6.11 OEM kernel
2. checkbox-cli run com.canonical.certification::warm-boot-stress-test

[Where problems could occur]
May cause regression at USB suspend or USB disconnect.

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