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Date:   Thu, 17 Nov 2022 10:23:16 +0100
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Subject: Re: AP6275 / bcm43752 pcie on mainline brcmf
To:     Shengyu Qu <wiagn233@outlook.com>, Andy Green <andy@warmcat.com>
Cc:     franky.lin@broadcom.com, linux-wireless@vger.kernel.org
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From:   Arend van Spriel <arend.vanspriel@broadcom.com>
In-Reply-To: <TY3P286MB26118BD94839F752CADCCF5298079@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM>
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On 11/16/2022 1:25 PM, Shengyu Qu wrote:
> Got a new version of downstream driver and firmware here: https://gitlab.com/rk3588_linux/linux/external/rkwifibt/-/tree/linux-5.10-gen-rkr3.4

Thanks for that. The firmware indeed seems to originate from Synaptics 
and this module can be found on wifi-alliance product finder:

https://www.wi-fi.org/product-finder-results?sort_by=certified&sort_order=desc&keywords=ap6275

We have no known contacts there and they do not seem to have much 
interest in open-source. In that gitlab repo I see they are providing 
bcmdhd driver and I assume they consider that sufficient.

Will see what I can do. First have to think on how to approach this 
failure to get most out of a debug effort. I do not have the module over 
here so we would need to go back and forth. The fact that the issue is 
seen on both SDIO and PCIe is somewhat encouraging.

Regards,
Arend

> 于 2022年11月14日 GMT+08:00 上午1:35:49, Arend Van Spriel <arend.vanspriel@broadcom.com> 写到:
>> On November 13, 2022 4:52:45 PM Shengyu Qu <wiagn233@outlook.com> wrote:
>>
>>> 在 2022/11/13 18:56, Arend Van Spriel 写道:
>>
>> [snip]
>>
>>>
>>>
>>>>>
>>>>>> Besides who I should ask to make proper firmware for it into
>>>>>> linux-firmware repo?
>>>>>
>>>>> It would also be great to hear if the PCIe firmware from Rockchip aimed
>>>>> at the OOT driver was definitively incompatible with the mainline driver
>>>>> and we have to find a solution for that from Broadcom, or it is expected
>>>>> to basically work.  I realize it might not be easy to get an answer
>>>>> internally but this chipset is likely to appear in more RK3588 SBCs soon
>>>>> since it's the one on the evb.
>>>>
>>>> Right now I don't have enough information to comment on this.
>>> Besides, could you upload the firmware that works with mainline driver
>>> to linux-firmware repo?
>>
>> I honestly don't know what entity provides the ampak wifi module. I guess it is coming from Synaptics, but I am not sure. I rather fix the mainline driver to make it work with the firmware (if possible) instead of releasing a specific firmware for mainline.
>>
>> Regards,
>> Arend
>>
>>
>>

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