vc4.ko causes another misterious error

[Ryutaroh Matsumoto]

Hi Stefan, thank you for the comment.

> 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.

With the latest packages in Debian, those errors went away as:

[   76.945935] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   76.953471] brcmfmac mmc0:0001:1: firmware: direct-loading firmware brcm/brcmfmac43455-sdio.bin
[   76.954638] brcmfmac mmc0:0001:1: firmware: direct-loading firmware brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt
[   77.045657] usbcore: registered new interface driver brcmfmac
[   77.132536] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[   77.133175] brcmfmac mmc0:0001:1: firmware: direct-loading firmware brcm/brcmfmac43455-sdio.clm_blob
[   77.138956] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Sep 18 2020 02:27:58 version 7.45.221 (3a6d3a0 CY) FWID 01-bbd9282b

But 5GHz WiFi remains unsable with vc4.ko loaded.
I do not have much inconvenience as blacklisting vc4.ko makes WiFi usable.
dmesg output with the latest Debian packages is attached
(with vc4.ko loaded).

Best regards, Ryutaroh
-------------- next part --------------
A non-text attachment was scrubbed...
Name: dmesg-20210321.txt.xz
Type: application/octet-stream
Size: 11872 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-rpi-kernel/attachments/20210321/33385a58/attachment.obj>