From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 B77F919E98D for ; Wed, 25 Mar 2026 03:41:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774410068; cv=none; b=bpZDN31bSQy9nEXH1wwqTgh2eh+Rb9qMmq6eR1EgkMlnTKs1+81W+POlOr52ggEpZyTwNxMR1oy0uLsL5CPeExRo81/xoHDCvuG3wTjuNDQ52Yw30hPuJguTbutijNkgee1zS3XHPXXcT7m4Z77zd5Ce+ABCy5vJ89RpR9Pq0QM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774410068; c=relaxed/simple; bh=mP1o5Nzm9Gjxg2DoEW9IEmm/ssAILnZZYIYnyv8OzFk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=fX0S4HDUQ5NsSUZ3SglT4gGQbT3NDQRCs/eSF9JujlZSnycHoR4w5FXrl94cuWzgShYz/1EbuYCEJ4DjGCLzILk53VNuyMnxQrxDNpmo6pTSlckjsKgqxad8f/z4P074igUSDMsIrv0iY8MsxBQw/YZ2VdPtlQuk/NFioyPJiS0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=HLbgCKNs; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=YIUI1m2k; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="HLbgCKNs"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="YIUI1m2k" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 62OJCefS989005 for ; Wed, 25 Mar 2026 03:41:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= X9aazANHaBXt4CN5A5tp2vWEIh7wezA0kRqEWMsyYNk=; b=HLbgCKNsVKRRUux0 38Z+1TCwfr3GvamCcqjtc/lJiAr8V9h2jGYinLcmcNEcCaAi9743trRuXNfi4B/F U4wYGFhnooF6DU9oemeBC/a6ZNbvEGhl2nkVPDreLBF9Xv9AsaRi+p0OKGU9RyL9 OLxZIqA845xEnV3IEdu0o2t3AyeSsLFuiEoK9dyba92dvyQ+u8D3R5E1S2CpbpSc OlNdmViyyly8PY8qXuKHnuyU11+1QbPNgJnpKhgfWVx4aIV/dOyIw6AUu2QisKRw TMB3lv4GxI0Ekurkj3Dci8+k99vexMTAXcQ37ULLyzBTo3p2cpYdipxdAwim+F9W ndX9mQ== Received: from mail-dy1-f199.google.com (mail-dy1-f199.google.com [74.125.82.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4d3u0m2wvb-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 25 Mar 2026 03:41:06 +0000 (GMT) Received: by mail-dy1-f199.google.com with SMTP id 5a478bee46e88-2bdd327d970so321563eec.1 for ; Tue, 24 Mar 2026 20:41:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1774410066; x=1775014866; darn=vger.kernel.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=X9aazANHaBXt4CN5A5tp2vWEIh7wezA0kRqEWMsyYNk=; b=YIUI1m2kDuCPXAuwYAP9P0NYPT/fSJkWVIycFqU8I4W/eqNW+TLvH4E/C6tOz8RX8I CFQpmbuHqlLF/yJcRUi3+0Lrp2BgUR5saN4Q6rEka+1q1UYip0VFrp43prSnE6/iU06z VNwhvPck9xTCfCJ5j273Eq1qCR869MnsyusYEu/xPtzTjQp4nPtDfaOG+/MXu6bDhn8j RYifuB3G4bPCa2ozZQ6wQPJz8HoBilbjox/M/IhGUpMSXIgIiPgn3c2GSff9CgpdqQ1q DyJHDDTP6aWPSjzMbMxfiNcGXJi61mCNVHQ9EckYyPQ2aZUvanjwFW9tqm/wUpVOCsRk bxrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774410066; x=1775014866; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=X9aazANHaBXt4CN5A5tp2vWEIh7wezA0kRqEWMsyYNk=; b=ZUPO9SuBQOmGEc+Vway4N/9eKbCNHarPiKWYmd6i680KuV9YI5M2hIyYdM1TO6aVPf 5/32GdgZzYcDFHiOCnqRwu1a/vf7o6i/dlQj141yoBGHZzEibMZgnSJJcz6eiisYyTme RFk09mPb1MIxuF/s5mTi9gGaNlLVrDMJXcQ1eHfVsDCtgtF8OeUdOcEGEzs9bnLeUFOW PCJRHwt7HmfTbA/GY9wvxzdLy/Ft0W5B6Z2ydFsOFnMg4EYO0kEYjgIWPaigSxpUnNV0 J1YfVY8Lrr0cmSvYyQagmDPGogl3J7uRqKsPNl6MMYNQ4wH1/Tj5yeYlG30yWl5iPRfh CgEw== X-Forwarded-Encrypted: i=1; AJvYcCX5xLTjbz4nuf4k/KTvNxkG/Ml/guOGLlrfNxJgLiYvOYM4lvP2E+9Yyrfeq4MAZO5BTroVESGRqVNKkI6T@vger.kernel.org X-Gm-Message-State: AOJu0Yy38eqdeqLB8mwvh2qhMqjkGANI4Hcqdqw9tWqDjshl8cdYzyuK ezYs+vUFmEBTtCAvu2iZ2Qiu/W1DJJwyv36tfPt871fkZFfyGz7NmgQ6/tNH1P+jBxB99zuOZbQ Zl4jvjpMl0GyFTPoW4qFK2zjCMLawzkkXXtR1mxIztV63WIGmajGQAQJ8M2QBQ9/y33TZ X-Gm-Gg: ATEYQzxOo3gcw9s0jl/c2nS6/bybYn64UQPor/K9vwCYC6ivSKS++LZ1co0d7v7h5Bf KiquJqo3bCT/MXyJTdU+mx0qEBKECR+p2NAcEZZ4Ir1w9k2J2J3ZPVxNmbP7bZoCYI0gp3rqIJy VEhDu1brXQZYsmc3nb92D0RmWwP0TV1/JDM3NakgZcT5xHXKj0bIPHDuLQnCkAo03W8QW+Mthdr zsI3VnfOmCiSjiDPreZDDk5Sr/Ty4Xhvax6ZJbK1esclTCFBFu3eIpAolGWdM0rsxMAcGGY/Gug ZPRaEkuey1MT2j+FgeCY9NOjTPIpgFvJtJlWq4xhS4FK+yGEnk1EFcmRb4qX9n31pNigHB5pKCJ xTzZG28IU4ys1gOqHpwp/Yo3Qdzxbh2weDQYgfHgcwww+QYdkDCC/UvOh/9xhle1f X-Received: by 2002:a05:7300:724f:b0:2be:88f2:3c98 with SMTP id 5a478bee46e88-2c15bbc6f6fmr1117003eec.1.1774410065845; Tue, 24 Mar 2026 20:41:05 -0700 (PDT) X-Received: by 2002:a05:7300:724f:b0:2be:88f2:3c98 with SMTP id 5a478bee46e88-2c15bbc6f6fmr1116990eec.1.1774410065256; Tue, 24 Mar 2026 20:41:05 -0700 (PDT) Received: from QCOM-aGQu4IUr3Y (i-global052.qualcomm.com. [199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2c10b2cde3bsm16982228eec.20.2026.03.24.20.41.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2026 20:41:04 -0700 (PDT) Date: Wed, 25 Mar 2026 11:40:59 +0800 From: Shawn Guo To: Deepti Jaggi Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prasad Sodagudi , Nikunj Kela , Shazad Hussain Subject: Re: [PATCH v5 2/3] arm64: dts: qcom: Introduce sa8255p SoC Message-ID: References: <20260304-b4-scmi-upstream-v5-0-f8fc763d8da0@oss.qualcomm.com> <20260304-b4-scmi-upstream-v5-2-f8fc763d8da0@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260304-b4-scmi-upstream-v5-2-f8fc763d8da0@oss.qualcomm.com> X-Authority-Analysis: v=2.4 cv=IY6KmGqa c=1 sm=1 tr=0 ts=69c35952 cx=c_pps a=cFYjgdjTJScbgFmBucgdfQ==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=KKAkSRfTAAAA:8 a=COk6AnOGAAAA:8 a=EUspDBNiAAAA:8 a=TRUxsesqeu6M_UsrYMsA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=scEy_gLbYbu1JhEsrz4S:22 a=cvBusfyB2V15izCimMoJ:22 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-ORIG-GUID: 5bI1IF9DVNYUVGPHmq0horpbwUCZnauu X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzI1MDAyMyBTYWx0ZWRfX/CeZPhsMGM/B b0If5xaiKvbI5rKLbcxGFaqyBAnzLK6esLN78kumNIa5qUPynQO/2RWamHqr38o1YzaC0RzxO/N z4KhVMPmRgZvUaTxJDBxfPWd++nbyEJIPbtTrb3G4fA5qMdofoSs3tKJNtgspNTo2Bj6YfM1fw9 jZvi972QV4sIBmZKL+3ORfAL6jXf0OpEzAv8oRV5vREMzZEiqVS4MgLcO0Y1n6AdZ6khwzLqCBn RuD87iYpZVjDjQHWvnVgtYaNgpeiweRqp2cUKOdzNM2HxZhvWkoU8/MLFxnnZc7U/zHyIABDvTR 2Ywy0eI4inwyo0a5oHBd/ApQBkN2khbnHzoJqQd9rPpY9tB84F4WTf/W3cX1Mszt14SZ4IR1t/+ xWy/5Z94aH1p3XVHH8RQWAxN3CA5kkHUwINUsR3fk3FSlZy0073Zdgt+5uSVwuwrEXyZESp0CWa COtdxBz5KN4JTySTbMw== X-Proofpoint-GUID: 5bI1IF9DVNYUVGPHmq0horpbwUCZnauu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-25_01,2026-03-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 phishscore=0 malwarescore=0 suspectscore=0 adultscore=0 priorityscore=1501 spamscore=0 lowpriorityscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603250023 On Wed, Mar 04, 2026 at 08:28:29PM -0800, Deepti Jaggi wrote: > From: Nikunj Kela > > Introduce base device tree support for sa8255p Qualcomm's automotive > infotainment SoC. The base dt file describes core SoC components- CPUs, > CPU map, ipcc, QUP, geni UART, interrupt controller, TLMM, reserved > memory, SMMU, firmware scm, scmi, watchdog, SRAM, PSCI, ufs, pcie, pmu > nodes and enable booting to shell with ramdisk. > > The Qualcomm automotive sa8255p SoC utilizes firmware to configure > platform resources such as clocks, interconnects, and TLMM. Device drivers > request these resources through the SCMI power,reset and performance > protocols. Assign each device driver a dedicated SCMI channel and Tx/Rx > doorbells to support parallel resource requests and aggregation in the > SCMI platform server. Operate the SCMI server stack in an SMP-enabled VM, > using the Qualcomm SMC/HVC transport driver for communication. > > Group resource operations to improve abstraction and reduce the number of > SCMI requests. Follow the SCMI-based resource management approach > demonstrated by Qualcomm at LinaroConnect 2024.[1] > > Limit initial support to basic platform resources, serial console, ufs > and pcie.Defer enabling USB, and Ethernet to subsequent updates. > > [1]: https://resources.linaro.org/en/resource/wfnfEwBhRjLV1PEAJoDDte > > Co-developed-by: Shazad Hussain > Signed-off-by: Shazad Hussain > Signed-off-by: Nikunj Kela > Co-developed-by: Deepti Jaggi > Signed-off-by: Deepti Jaggi > --- > arch/arm64/boot/dts/qcom/sa8255p.dtsi | 4861 +++++++++++++++++++++++++++++++++ > 1 file changed, 4861 insertions(+) Is my understanding correct that the following SoCs are all members of Lemans family? - QCS9075/9100 (IQ9) - SA8255P - SA8775P If so, does it make sense to apply DTS structure like below? lemans.dtsi | |― lemans-iq9.dtsi | | | |― lemans-evk.dts (qcs9100-evk.dts ideally) | | | |― qcs9100-ride-r3.dts | | | |― qcs9100-ride.dts | |― lemans-sa8255p.dtsi | | | |― sa8255p-ride.dts | |― lemans-sa8775p.dtsi | |― sa8775p-ride-r3.dts | |― sa8775p-ride.dts Shawn