linux-kernel - Re: [PATCH v3] Bluetooth: qca: Fix poor RF performance for WCN6855

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Message-ID: <63830aad-161b-4b9a-81ce-1437f66f70a7@icloud.com>
Date: Mon, 13 Jan 2025 23:11:00 +0800
From: Zijun Hu <zijun_hu@...oud.com>
To: Johan Hovold <johan@...nel.org>
Cc: Marcel Holtmann <marcel@...tmann.org>,
 Luiz Augusto von Dentz <luiz.dentz@...il.com>,
 Steev Klimaszewski <steev@...i.org>, Bjorn Andersson <bjorande@...cinc.com>,
 "Aiqun Yu (Maria)" <quic_aiquny@...cinc.com>,
 Cheng Jiang <quic_chejiang@...cinc.com>,
 Jens Glathe <jens.glathe@...schoolsolutions.biz>,
 Paul Menzel <pmenzel@...gen.mpg.de>,
 Luiz Augusto von Dentz <luiz.von.dentz@...el.com>,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 Zijun Hu <quic_zijuhu@...cinc.com>, stable@...r.kernel.org
Subject: Re: [PATCH v3] Bluetooth: qca: Fix poor RF performance for WCN6855

On 2025/1/13 23:04, Johan Hovold wrote:
>> ---
>> Changes in v3:
>> - Rework over tip of bluetooth-next tree.
>> - Remove both Reviewed-by and Tested-by tags.
>> - Link to v2: https://lore.kernel.org/r/20241116-x13s_wcn6855_fix-v2-1-c08c298d5fbf@quicinc.com
> Thanks for the quick update.
> 
> I'm fine with dropping the fallback logic, but you should have mentioned
> that here.
> 

the fallback logic is still reserved.

look at drivers/bluetooth/btqca.c:qca_download_firmware() changes
introduce by:
Commit: ad3f4635a796 ("Bluetooth: qca: Update firmware-name to support
board specific nvm")

> This still works fine on X13s and sc8280xp crd (hpnv21g.b8c and
> hpnv20.b8c):
> 
> Tested-by: Johan Hovold <johan+linaro@...nel.org>