From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 103A6145324; Wed, 20 Nov 2024 16:47:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732121233; cv=none; b=nhn6H6oXuoY9VUv1Ibr2GPeHVkxV/WdUxTFya7vJZokKtffOvikmwaHP7gF7xJo334j4ERMxDxzCjUDeE/+pPX+4Wfw4OiVJ1sxSxu+lFerWGRYgdElCqHudYG5UA+l8ahEGhNKZlKD5REKY76aX4v2FCLAG5y4B1Jfh+9nYqfo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732121233; c=relaxed/simple; bh=1xhpyUQO3vC6p6qyxXGURDP7/NzTbaO8rvYZ4S2AiDY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OquCQ7a+viQf+EGpcitgHVHnigh0OvtXisuYCuPaKkITAPK3k4UalQiZOlFQkeSFdKLiqgKBrat1aXbDQLvP6jWQSNYvMRAy1iN+7bBtL2pp6ZELzHNZPDKhXV0VvBIxd/TM5tBhvtLa8s4MQJqcZ1ZLnd27JnzIPoJzzJDgLRg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=A6HYZcEI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="A6HYZcEI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8416DC4CECD; Wed, 20 Nov 2024 16:47:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732121232; bh=1xhpyUQO3vC6p6qyxXGURDP7/NzTbaO8rvYZ4S2AiDY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=A6HYZcEIHMs1x/76bljokcvJpIp8Ln0XGwsprEGp3qZZqci7O+zTdWbtqfnJIbTaC 2HLFpf+WlEidO5T6ejwsQ0R9mPQ3dGv2T0IOYZJI9O5X8Ls3sZQleN7bb8hYc6yDMf 2pmFF/I/YZmNkXi2cgcafCHqHtxWn0DhMy3FPseELHDBpAXMUpl9M401cXEj0H2lWk JR+a/uGXDZcP3y8uwTPfreq6ccTrbjjbx87xe5QTDwMsWMKp7D6IupkgyX55wpGPvL aud7+ClprPgNConnrE4G64hi8meN0iFGT2zo3cLHqUnqcpGkHKuBq6Ot7ip3WNNYd0 hnXM50sOvIDmQ== Message-ID: Date: Wed, 20 Nov 2024 17:47:06 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/4] dt-bindings: bluetooth: add 'qcom,product-variant' To: Cheng Jiang , Marcel Holtmann , Luiz Augusto von Dentz , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Balakrishna Godavarthi , Rocky Liao , quic_zijuhu@quicinc.com Cc: linux-bluetooth@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, quic_mohamull@quicinc.com References: <20241120095428.1122935-1-quic_chejiang@quicinc.com> <20241120095428.1122935-2-quic_chejiang@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 On 20/11/2024 10:54, Cheng Jiang wrote: > Several Qualcomm projects will use the same Bluetooth chip, each > focusing on different features. For instance, consumer projects > prioritize the A2DP SRC feature, while IoT projects focus on the A2DP > SINK feature, which may have more optimizations for coexistence when > acting as a SINK. Due to the patch size, it is not feasible to include > all features in a single firmware. > > Therefore, the 'product-variant' devicetree property is used to provide > product information for the Bluetooth driver to load the appropriate > firmware. > > If this property is not defined, the default firmware will be loaded, > ensuring there are no backward compatibility issues with older > devicetrees. > > The product-variant defines like this: > 0 - 15 (16 bits) are product line specific definitions > 16 - 23 (8 bits) are for the product line. > 24 - 31 (8 bits) are reserved for future use, 0 currently > > |---------------------------------------------------------------------| > | 32 Bits | > |---------------------------------------------------------------------| > | 31 - 24 (bits) | 23 - 16 (bits) | 15 - 0 (16 bits) | > |---------------------------------------------------------------------| > | Reserved | 0: default | 0: default | > | | 1: CE | | > | | 2: IoT | | > | | 3: Auto | | > | | 4: Reserved | | > |---------------------------------------------------------------------| > > Signed-off-by: Cheng Jiang > --- > .../bindings/net/bluetooth/qualcomm-bluetooth.yaml | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml > index 7bb68311c609..9019fe7bcdc6 100644 > --- a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml > +++ b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.yaml > @@ -110,6 +110,12 @@ properties: > description: > boot firmware is incorrectly passing the address in big-endian order > > + qcom,product-variant: > + $ref: /schemas/types.yaml#/definitions/uint32 > + description: > + specify the product information for driver to load the appropriate firmware Nah, you have firmware-name for this. > + > + No clue why two blank lines... Best regards, Krzysztof