linux-kernel - Re: [PATCH v4 0/3] Expand firmware-name property to load specific

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Message-ID: <b7acd819-f37b-470a-9366-2460be1075e2@quicinc.com>
Date: Wed, 11 Dec 2024 17:37:58 +0800
From: "Cheng Jiang (IOE)" <quic_chejiang@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
CC: Marcel Holtmann <marcel@...tmann.org>,
        Luiz Augusto von Dentz
	<luiz.dentz@...il.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson
	<andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        "Balakrishna
 Godavarthi" <quic_bgodavar@...cinc.com>,
        Rocky Liao
	<quic_rjliao@...cinc.com>,
        <linux-bluetooth@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <quic_jiaymao@...cinc.com>, <quic_shuaz@...cinc.com>,
        <quic_zijuhu@...cinc.com>, <quic_mohamull@...cinc.com>
Subject: Re: [PATCH v4 0/3] Expand firmware-name property to load specific

Hi Krzysztof,

On 12/11/2024 4:53 PM, Krzysztof Kozlowski wrote:
> On Tue, Dec 10, 2024 at 11:16:32PM +0800, Cheng Jiang wrote:
>> Expand the firmware-name property to specify the names of NVM and
>> rampatch firmware to load.
>>
>> This update will support loading specific firmware (nvm and rampatch)
>> for certain chips, like the QCA6698 Bluetooth chip, which shares the
>> same IP core as the WCN6855 but has different RF components and RAM
>> sizes, requiring new firmware files.
>>
>> Different connectivity boards may be attached to the same platform. For
>> example, QCA6698-based boards can support either a two-antenna or
>> three-antenna solution, both of which work on the sa8775p-ride platform.
>> Due to differences in connectivity boards and variations in RF
>> performance from different foundries, different NVM configurations are
>> used based on the board ID.
>>
>> So In firmware-name, if the NVM file has an extension, the NVM file will
>> be used. Otherwise, the system will first try the .bNN (board ID) file,
>> and if that fails, it will fall back to the .bin file.
>>
>> Possible configurations:
>> firmware-name = "QCA6698/hpnv21.bin", "QCA6698/hpbtfw21.tlv";
>> firmware-name = "QCA6698/hpnv21", "QCA6698/hpbtfw21.tlv";
>> firmware-name = "QCA6698/hpnv21.bin";
>>
>> ---
>> v4:
>>   1. Split nvm and rampatch changes to 2 commits
>>   2. Code fix according to review comments
> 
> Which comments? What exactly did you fix? This cannot be vague.
> 
Ack.
> Best regards,
> Krzysztof
>