From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B39EDC0218F for ; Tue, 4 Feb 2025 07:31:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ddD1854lpA1/chwSSP70FRv+nDQn+dvowsvjTqztAMc=; b=xwpcJcWAVjnEpIOivtC3VLSfvR uqcaAeco9nssFiYLXQHF2uw/+Xu0mVx6oWAbcW420AW6ds3wb2arAajitA+nYNMJiPvj4yYsILw+j deUUdcCVFMwe+FnAu7x1+eu5WTUpA7TfuLIqli3p4g946HPmx33kMwuf87QW92BGASfkdbf3ztM3+ EaIE8F/7moY42ekyMnCfGlLLc8FtZ8FFi4CHDlVrA6u8VHMRchva2acCqA7xa/nC9rrDo7v0EzLm0 AhZDv10IfVY5jbeGzsgz/AVrLMwUmHE2XOCk8Nbca7FzRhvjt7K+cWlYDW0x3LV+IvgHO7vM5fE6P TiZvnsew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tfDOh-0000000HQGA-1R2B for ath12k@archiver.kernel.org; Tue, 04 Feb 2025 07:31:03 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tfDOe-0000000HQFp-49i4 for ath12k@lists.infradead.org; Tue, 04 Feb 2025 07:31:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 8C7655C4A91; Tue, 4 Feb 2025 07:30:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7DC5C4CEDF; Tue, 4 Feb 2025 07:30:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738654260; bh=zt/aEx8/bioARNiNbp5LpN9aIVl9Rt/uc9g3v77CCh4=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=qXHSZdeGAuhXmkWNnncngOKkMXoikSKlAkcwz+VD+YxUXBGnZq6/7EGTyfWE/Fj3T K5ROdqwhQCyNxiP3AmrL3pRx9CsCDN8gGJy+7ojS0aSqH0sKPAvuU28ZJOtJy9lKVm mvo8QDYUwvAKdnehl2sitHZkeoRB7TtQTCQI8shfi2BNrQIULbIUT4DVTBNS4TJRZF AgE7qCXm9ZC/erAw4dXstMOaAyDS+QUS4F4IGT94DZTB93adr3QL+UPwTnYfRqY03M B5YkzZ7tahHvonwuVsRAsa3aIEoeqSJL8++5WKwjJ3yJIHz3dNAnZOTVd6RqYjk0sB oLPdj2mnerJsg== Message-ID: Date: Tue, 4 Feb 2025 08:30:54 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 01/13] dt-bindings: net: wireless: describe the ath12k AHB module To: Raj Kumar Bhagat Cc: ath12k@lists.infradead.org, linux-wireless@vger.kernel.org, Kalle Valo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jeff Johnson , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250130043508.1885026-1-quic_rajkbhag@quicinc.com> <20250130043508.1885026-2-quic_rajkbhag@quicinc.com> <20250130-cunning-quail-of-opportunity-76d0ad@krzk-bin> <724a4822-469a-45bb-bfb1-c02b54e971a3@quicinc.com> <345519bb-ba1c-4bcc-a03c-5557f8f40035@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250203_233101_119759_8A5FC384 X-CRM114-Status: GOOD ( 12.18 ) X-BeenThere: ath12k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "ath12k" Errors-To: ath12k-bounces+ath12k=archiver.kernel.org@lists.infradead.org On 04/02/2025 06:57, Raj Kumar Bhagat wrote: > > The calibration board data for different variant are packed into firmware binary 'board-2.bin'. > Thus, board-2.bin can contain multiple board data for various variants. Ath12k driver selects > the correct board data based on the variant. The "qcom,ath12k-calibration-variant" is used > as one of the parameter to select the correct board data from board-2.bin. > >> 3. How is it supposed to work in practice - you have one board, but >> might have different SoCs inside? Which calibration data would you use >> in such case? >> > > The SoC in the following statement 'you have one board, but might have different SoCs inside' > , I am assuming SoC to be WiFi controller/component. > > Consider, if we have two WiFi (qcom,ipq5332-wifi) controller with different FEM in IPQ5332 board. > Then in the DTS we have two wifi node. Each wifi node in DTS will have different value for > 'qcom,ath12k-calibration-variant'. With the help of this property driver will be able to > download the correct calibration board data from board-2.bin. Indeed, that makes sense. Thanks for explanation. Best regards, Krzysztof