Public bug reported:
We currently use the dwc_otg driver from raspberrypi on 5.4 and 5.8
armhf and arm64 kernels. That driver supports FIQ interrupt handling
(presumable for better performance) but lacks the maintenance and bug
fixing of the vanilla upstream dwc driver. Turns out that FIQ handling
is disabled in the dwc_otg driver on arm64 so it makes little sense to
use that driver on arm64.
** Affects: linux-raspi (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-raspi (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux-raspi (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux-raspi (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux-raspi (Ubuntu Focal)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1900665
Title:
Switch to the upstream dwc driver on arm64
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