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@xxxxxxxxxx> --- 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@xxxxxxxxxx --- Dmitry Baryshkov (4): dt-bindings: net: wireless: ath10k: describe firmware-name property wifi: ath10k: support board-specific firmware overrides arm64: dts: qcom: qrb2210-rb1: add firmware-name qualifier to WiFi node arm64: dts: qcom: qrb4210-rb1: add firmware-name qualifier to WiFi node .../devicetree/bindings/net/wireless/qcom,ath10k.yaml | 6 ++++++ arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 1 + arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 1 + drivers/net/wireless/ath/ath10k/core.c | 11 ++++++++++- drivers/net/wireless/ath/ath10k/core.h | 2 ++ drivers/net/wireless/ath/ath10k/snoc.c | 3 +++ 6 files changed, 23 insertions(+), 1 deletion(-) --- base-commit: 596764183be8ebb13352b281a442a1f1151c9b06 change-id: 20240130-wcn3990-firmware-path-7a05a0cf8107 Best regards, -- Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
