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 384F6345751; Tue, 28 Apr 2026 06:56:17 +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=1777359378; cv=none; b=VGzbAcYTpfid0VEWV+K+l35uP6AjXPStLOw9rFt+FBwRr1HfpiN+I6Wetw3sfo/pcfwZzEq+IC7G8zstxIjeSoU5MXdQSu50f3Wo6o8oaXMVoT50tD7gIteR24KNxXykwB/jbduWUAgLIbm/85YsufkxTrvJ20IwLnlbLAhvdvE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777359378; c=relaxed/simple; bh=7+SAl/k9DPllFv+iTtdbtfjy2bQ9LA6XKa6rnbMRh3w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jeSk1oGLwced/03mfpg4tsNIemeT2HJLv3xvn9Ot/43E072mJzu0dyJS2U99Rbn+HOjI/hyYoAIrE77bpyByFuH7Wx/mAxU34VuOq+kgxuCzMo++uSKl93agNo6+y03YzAT2OA7B+emEiksdOIWMKeptREAbji1jl4IEC2F1ZEU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gDEoPrkX; 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="gDEoPrkX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 26740C2BCB6; Tue, 28 Apr 2026 06:56:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777359377; bh=7+SAl/k9DPllFv+iTtdbtfjy2bQ9LA6XKa6rnbMRh3w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=gDEoPrkXa94mbIE4hZClYTiJ4Z0hMfIHuCqdz8vXSYh6Rs7sxLhJny0cVZ2MN5vqB aeKExetSf/pLkeXYGI+q8fW/h4qZRoskXiqac+ZejVpFwc61eG9jAwFzKZlbwWBl69 sZrBgKzTohjfSc+CGPZZnjAchYrsK1QcAB4nrjxCW/DJhDU8sDjOaC02eKLnR/Dmfy ak5iwf7pyUU7oAtMNXSvvmLJHuE8YjqS82LEDVcglW7WrOelGMpb86oDzUYjzDK0s1 A2lRoHB8z6OoHluw8Z1Yaa8eaIAhzWyFaeALmeBPEQOU+xY+TbmSnz8oTRx25EOj2Q vsPEAiXo2Qy4A== Message-ID: Date: Tue, 28 Apr 2026 07:56:12 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 05/14] media: qcom: camss: Add camss-isp-bufq helper To: Loic Poulain , Bryan O'Donoghue , Vladimir Zapolskiy , Mauro Carvalho Chehab , Kees Cook , "Gustavo A. R. Silva" , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, devicetree@vger.kernel.org, laurent.pinchart@ideasonboard.com, kieran.bingham@ideasonboard.com References: <20260427-camss-isp-ope-v2-0-f430e7485009@oss.qualcomm.com> <20260427-camss-isp-ope-v2-5-f430e7485009@oss.qualcomm.com> Content-Language: en-US From: Bryan O'Donoghue In-Reply-To: <20260427-camss-isp-ope-v2-5-f430e7485009@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 27/04/2026 13:43, Loic Poulain wrote: > Add a per-queue ready-buffer FIFO helper for CAMSS offline ISP drivers. > camss_isp_bufq provides N spinlock-protected FIFO lists of ready vb2 > buffers, one per queue index. This can help multi-queues management > and synchronization in ISP context. > > Signed-off-by: Loic Poulain > --- > drivers/media/platform/qcom/camss/Kconfig | 14 +++ > drivers/media/platform/qcom/camss/Makefile | 5 + > drivers/media/platform/qcom/camss/camss-isp-bufq.c | 101 +++++++++++++++++++++ > drivers/media/platform/qcom/camss/camss-isp-bufq.h | 85 +++++++++++++++++ What is the purpose of this and the next three patches - why not just do it inside the OPE ? --- bod