netdev - Re: [PATCH RFC 2/4] wifi: ath10k: support board-specific firmware overrides

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Message-ID: <03d5d556-9477-4f2e-a737-c2f6a96d97a4@linaro.org>
Date: Mon, 12 Feb 2024 12:12:47 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Kalle Valo <kvalo@...nel.org>, 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>
Cc: ath10k@...ts.infradead.org, linux-wireless@...r.kernel.org,
 netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH RFC 2/4] wifi: ath10k: support board-specific firmware
 overrides

On 30.01.2024 17:38, Dmitry Baryshkov wrote:
> Different Qualcomm platforms using WCN3990 WiFI chip use SoC-specific
> firmware versions 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.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> ---
>  drivers/net/wireless/ath/ath10k/core.c | 11 ++++++++++-
>  drivers/net/wireless/ath/ath10k/core.h |  2 ++
>  drivers/net/wireless/ath/ath10k/snoc.c |  3 +++
>  3 files changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
> index 0032f8aa892f..ef7ce8b3f8fb 100644
> --- a/drivers/net/wireless/ath/ath10k/core.c
> +++ b/drivers/net/wireless/ath/ath10k/core.c
> @@ -942,11 +942,20 @@ static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
>  	if (dir == NULL)
>  		dir = ".";
>  
> +	if (ar->board_name) {
> +		snprintf(filename, sizeof(filename), "%s/%s/%s",
> +			 dir, ar->board_name, file);
> +		ret = firmware_request_nowarn(&fw, filename, ar->dev);
> +		ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot fw request '%s': %d\n",
> +			   filename, ret);

Perhaps it'd be useful to move to a more noisy loglevel

Konrad