Re: [BUG] mt76x0u: Probing issues on Raspberry Pi 3 B+

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>
> Hi,
>
> as already reported here [1], that there are probing issues of mt76 using TP-Link Archer T2UH (wifi USB dongle) on Raspberry Pi 3 B+.
>
> I retested it with recent linux-next 20190208 (aarch64 defconfig + enabling mt76 driver) and got the following output after plugin the wifi dongle:
>
> [   29.778524] usb 1-1.3: new high-speed USB device number 6 using dwc2
> [   31.794581] usb 1-1.3: reset high-speed USB device number 6 using dwc2
> [   31.919916] mt76x0u 1-1.3:1.0: ASIC revision: 76100002 MAC revision: 76502000
> [   32.304412] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> [   32.325724] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> [   32.346866] dwc2 3f980000.usb: dwc2_update_urb_state(): trimming xfer length
> [   33.410559] mt76x0u 1-1.3:1.0: firmware upload timed out
> [   33.435458] mt76x0u: probe of 1-1.3:1.0 failed with error -110
> [   33.454829] usbcore: registered new interface driver mt76x0u
>
> I took the firmware files from here [2].
>
> Btw there is another issue, if i disconnect the wifi dongle during probe i'm getting a endless flood of the following output:
>
> mt76x0u 1.1.3:1.0: rx urb failed: -71
>
> Any chance to narrow down these issues?

Hi Stefan,

could you please test the following series:
https://patchwork.kernel.org/cover/10764453/
Applying this series I am able to connect to my home AP using an Asus
USB-AC51 (mt76x0u) connected to a Raspberry Pi 3 B+.
I am running rpi-5.0.y branch of https://github.com/raspberrypi/linux.git

Regards,
Lorenzo

>
> [1] - https://marc.info/?l=linux-wireless&m=154875316703367
> [2] - https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/mediatek



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