WCN6855 issues with latest linux-firmware

[Dmitry Baryshkov]

Hi,

On Thu, 12 May 2022 at 21:24, Kalle Valo <kvalo at kernel.org> wrote:
>
> Dmitry Baryshkov <dmitry.baryshkov at linaro.org> writes:
>
> > The wcn6855 WiFi chip stopped working for me after an update to the
> > latest linux-firmware (Linux 5.18-rc2). I can reproduce it with both
> > hw2.0 and hw2.1 chips.
> >
> > Here is the set of kernel messages I'm getting from ath11k_pci driver:
> >
> > [    4.422391] ath11k_pci 0000:01:00.0: Adding to iommu group 3
> > [    4.429571] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem
> > 0x60400000-0x605fffff 64bit]
> > [    4.437857] ath11k_pci 0000:01:00.0: enabling device (0000 -> 0002)
> > [    4.445323] ath11k_pci 0000:01:00.0: MSI vectors: 1
> > [    4.450375] ath11k_pci 0000:01:00.0: wcn6855 hw2.0
> > [    5.378488] ath11k_pci 0000:01:00.0: chip_id 0x2 chip_family 0xb
> > board_id 0x8c soc_id 0x400c0200
> > [    5.392898] ath11k_pci 0000:01:00.0: fw_version 0x110f0c35
> > fw_build_timestamp 2022-03-30 09:05 fw_build_id
> > QC_IMAGE_VERSION_STRING=WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.7
> > [    5.420648] ath11k_pci 0000:01:00.0: failed to fetch board data for
> > bus=pci,vendor=17cb,device=1103,subsystem-vendor=17cb,subsystem-device=0108,qmi-chip-id=2,qmi-board-id=140
> > from ath11k/WCN6855/hw2.0/board-2.bin
> > [   15.686398] ath11k_pci 0000:01:00.0: failed to wait board file
> > download request: -110
> > [   15.694530] ath11k_pci 0000:01:00.0: qmi failed to load bdf file
> > [   15.700784] ath11k_pci 0000:01:00.0: failed to load board data file: -110
>
> What WCN6855 hardware are you exactly using? (make, model etc)

Unfortunately I can provide only a few details here. All the issues
happen on the Qualcomm SM8450 devices.
One device (Lantronix HDK8450) just lists 'WCN6856' (WCN6856_80-WL542
in the schematics). Other devices that I have been using have the
third party WiFi modules onboard, but they are not public yet, so I
can not provide exact details either.

-- 
With best wishes
Dmitry