[PATCH v3] console: usb: kbd: Limit poll frequency to improve performance

[Filip Žaludek]

Hello,
  change seems to be unfriendly to RPi3B+, it allows to enter 'U-Boot>' shell but usb keyboard
does not respond. Keyboard is detected by 'usb info' in v2023.01-rc3, not in v2022.10.
When reverted, usb keyboard works as expected.

Anybody sitting front of RPi3B+ care to confirm?


Regards,
Filip





Patch:
https://github.com/u-boot/u-boot/commit/96991e652f541323a03c5b7e075d54a117091618


Debug:
USB KBD: found interrupt EP: 0x81
USB KBD: set boot protocol
dwc2_submit_control_msg: dev='usb at 7e980000', udev=000000003af4be00,
udev->dev='usb_kbd', portnr=3
USB KBD: set idle interval...
dwc2_submit_control_msg: dev='usb at 7e980000', udev=000000003af4be00,
udev->dev='usb_kbd', portnr=3
USB KBD: enable interrupt pipe...
usb_kbd usb_kbd: Timeout poll on interrupt endpoint


Tested:
SW: v2022.10 & v2023.01-rc3 compiled from sources as 'rpiarm64'
HW: USB 1.1 and 2.0 keyboards, RPi3B+
JeOS:
http://download.opensuse.org/ports/aarch64/tumbleweed/appliances/openSUSE-Tumbleweed-ARM-JeOS-raspberrypi.aarch64-2022.10.11-Snapshot20221112.raw.xz
(u-boot-rpiarm64-2022.10-1.1.aarch64)