vc4.ko causes another misterious error

[Stefan Wahren]

Hi,

Am 20.03.21 um 20:31 schrieb Ryutaroh Matsumoto:
> Hi, I sent the below to linux-rpi-kernel list on February 18,
> but it has remained unaccepted, so I resend this.
>
> I found another mysterious error caused by vc4.ko.
> Only when vc4.ko is loaded AND the SD card slot is empty in my RPi4B 8GB,
> I observe the following harmless error message at every 10 seconds:
i'm not sure this is related to the vc4. Maybe this should be reported
to linux-mmc with a more detailed scenario.
> ...
>
> Kernel is plain upstream 5.10.17.
> As before, all WiFi frequencies remain unusable with vc4.ko.

Based on your dmesg output this is suspected:

brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2),
device may have limited channels available

Maybe you should try to compare firmware files between Raspberry Pi OS
and Debian.

Best regards

>
> For reference, output of dmesg is attached.
>
> Best regards, Ryutaroh Matsumoto
>
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