linux-kernel - Re: [PATCH v2] ath10k: Use bdf calibration variant for snoc targets

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Date:   Tue, 22 Sep 2020 07:21:41 +0000 (UTC)
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Rakesh Pillai <pillair@...eaurora.org>
Cc:     ath10k@...ts.infradead.org, linux-wireless@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Rakesh Pillai <pillair@...eaurora.org>
Subject: Re: [PATCH v2] ath10k: Use bdf calibration variant for snoc targets

Rakesh Pillai <pillair@...eaurora.org> wrote:

> Board Data File (BDF) is loaded upon driver boot-up procedure.
> The right board data file is identified using bus and qmi-board-id.
> 
> The problem, however, can occur when the (default) board data
> file cannot fulfill with the vendor requirements and it is
> necessary to use a different board data file.
> 
> Also using the chip_id for identifying the board data helps
> in dealing with different variants of the board data file based
> on the RF card. If the chip_id is not programmed, a default value
> of 0xff will be used for parsing the board data file.
> 
> Add the support to get the variant field from DTSI and
> use this information along with the chip_id to load the vendor
> specific BDF.
> 
> The device tree requires addition strings to define the variant name
> 
>     wifi@...0000 {
>             status = "okay";
>             qcom,ath10k-calibration-variant = "xyz-v2";
>     };
> 
>     wifi@...0000 {
>             status = "okay";
>             qcom,ath10k-calibration-variant = "xyz-v1";
>     };
> 
> This would create the boarddata identifiers for the board-2.bin search
> 
>  *  bus=snoc,qmi-board-id=16,qmi-chip-id=0,variant=xyz-v1
>  *  bus=snoc,qmi-board-id=17,qmi-chip-id=0,variant=xyz-v2
> 
> Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.1-01040-QCAHLSWMTPLZ-1
> 
> Signed-off-by: Rakesh Pillai <pillair@...eaurora.org>
> Signed-off-by: Kalle Valo <kvalo@...eaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

4e9381056547 ath10k: Use bdf calibration variant for snoc targets

-- 
https://patchwork.kernel.org/patch/11775827/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches