Sender: Larry Finger <larry.finger@gmail.com>
Message-ID: <1e708cdf-f132-301b-0514-203275581bc9@lwfinger.net>
Date:   Fri, 17 Mar 2023 00:53:27 -0500
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Subject: Re: New binary rtw8852b_fw.bin not loading firmware not recognized
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To:     rb <rb0171610@gmail.com>, linux-wireless@vger.kernel.org
References: <df1ce994-3368-a57e-7078-8bdcccf4a1fd@gmail.com>
From:   Larry Finger <Larry.Finger@lwfinger.net>
In-Reply-To: <df1ce994-3368-a57e-7078-8bdcccf4a1fd@gmail.com>
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On 3/16/23 17:47, rb wrote:
> Briefly,
> 
> I use rtw89_8852be in kernel driver
> 
> HARDWARE:
> Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
> 
> Lenovo Ideapad 1i
> 
> ISSUE:
> Newest version of binary firmware 2023_03_10,
> rtw89/rtw8852b_fw.bin, will not load/firmware not recognized on Linux Kernel 
> 6.2.5 (and others):
> 
> [] loading firmare: rwt89/rtw8852b_fw.bin
> [] rtw89_8852be 0000:03:00.0: no suitable firmware found
> [] rtw89_8852be 0000:03:00.0: failed to recognize firmware
> 
> Issue persists regardless of which 6.2 series kernel is used.
> 
> All previous rwt89/rtw8852b_fw.bin firmware from linux-firmware 2023_02_10 and 
> earlier loads and works correctly.
> 
> I did file a bug report with the details:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=217207

There are two workarounds.

1. Copy the 0.27.x firmware from my download site and install it using the 
following:
wget lwfinger.com/download/rtw8852b_fw.bin
sudo cp rtw8852b_fw.bin /lib/firmware/rtw89/.

2. Implement the driver found at https://github.com/lwfinger/rtw89.git.
That version can handle version 0.27.x or 0.29.x of the firmware.

Larry