Re: [PATCH v3 1/3] dt-bindings: net: bluetooth: qca: Expand firmware-name property

[Krzysztof Kozlowski <krzk@kernel.org>]

On 05/12/2024 11:22, 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.
> 
> We might use different connectivity boards on 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";
This configuration will fail tests. Please test the binding and DTS
before v4.

Best regards,
Krzysztof