netdev - Re: [PATCH RFC v2 0/4] wifi: ath10k: support board-specific firmware overrides

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Message-ID: <87plw7hgt4.fsf@kernel.org>
Date: Wed, 06 Mar 2024 11:04:39 +0200
From: Kalle Valo <kvalo@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Jeff Johnson <quic_jjohnson@...cinc.com>,  "David S. Miller"
 <davem@...emloft.net>,  Eric Dumazet <edumazet@...gle.com>,  Jakub
 Kicinski <kuba@...nel.org>,  Paolo Abeni <pabeni@...hat.com>,  Rob Herring
 <robh+dt@...nel.org>,  Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>,  Conor Dooley <conor+dt@...nel.org>,
  Bjorn Andersson <andersson@...nel.org>,  Konrad Dybcio
 <konrad.dybcio@...aro.org>,  ath10k@...ts.infradead.org,
  linux-wireless@...r.kernel.org,  netdev@...r.kernel.org,
  devicetree@...r.kernel.org,  linux-arm-msm@...r.kernel.org,  Krzysztof
 Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH RFC v2 0/4] wifi: ath10k: support board-specific
 firmware overrides

Dmitry Baryshkov <dmitry.baryshkov@...aro.org> writes:

> On WCN3990 platforms actual firmware, wlanmdsp.mbn, is sideloaded to the
> modem DSP via the TQFTPserv. These MBN files are signed by the device
> vendor, can only be used with the particular SoC or device.
>
> Unfortunately different firmware versions come with different features.
> For example firmware for SDM845 doesn't use single-chan-info-per-channel
> feature, while firmware for QRB2210 / QRB4210 requires that feature.
>
> Allow board DT files to override the subdir of the fw dir used to lookup
> the firmware-N.bin file decribing corresponding WiFi firmware.
> For example, adding firmware-name = "qrb4210" property will make the
> driver look for the firmware-N.bin first in ath10k/WCN3990/hw1.0/qrb4210
> directory and then fallback to the default ath10k/WCN3990/hw1.0 dir.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
> Changes in v2:
> - Fixed the comment about the default board name being NULL (Kalle)
> - Expanded commit message to provide examples for firmware paths (Kalle)
> - Added a note regarding board-2.bin to the commit message (Kalle)
> - Link to v1: https://lore.kernel.org/r/20240130-wcn3990-firmware-path-v1-0-826b93202964@linaro.org

>From my point of view this looks good now but let's see what others say.
Is there a specific reason why you marked this as RFC still?

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