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 8456B385D94 for ; Wed, 3 Jun 2026 21:46:57 +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=1780523218; cv=none; b=E5PM++xkuK8WG5p/t2J1czQh/5xN5orTOM6nkJYaKY5Tn7K8EF5a2ZQVQX3WsA5CdMUwaw6i6gjBuceV46UTOV212QFLa8J06l6o0XS8RjL3Vu1KNZz00NjvQebWPs3VA7TFf/9O7r0KqyPkMZoNlLeyi809Td2iLHsrcde+wMQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780523218; c=relaxed/simple; bh=oeYALUtDYRkyR7oPwz2HFEy/K998aAgoV+N/hPqd17k=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=j8ffjTgMmrfZAISFeTKLkd095wmazOuZ/Vd41rPoKY1XUkIKdbRyOKhmR6SYP+5nS58Kar5R9LR0K1dhj242vqoo2wAdQf0fv/XjbCc6Tg/eV7uSPSWCzfdjrO/n6NmMYzgkhFdD3uiML4VSeTvGlKFmyIwT4eFA5wCGMYB+keg= 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=dtOMp8RS; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=ONrGrEAb; 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="dtOMp8RS"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="ONrGrEAb" Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 653KgoMW1740458 for ; Wed, 3 Jun 2026 21:46:57 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= YI4SVhkK6E0eWN6DtYQRlG4n4FVt4g9e2Fn1B2lcMFM=; b=dtOMp8RSacUZoCYe efjvGKC+HAT7c4p7w5nn4raTde7oWIY5XZlQgiRfGawn8NrHS9oFSxPGWbOR1n45 MIZnFNNphA3PwHJNnaqkyKQSIK6zxhABvK9/wHqTMtJrHLONWZHrEWFLYYefwj09 reHvVmClMJxAzr1vpptI5H4u22+dosRl3wOs1LuywneUwJcp8lTBZ0/P8WgWcC6I KP1E8waRuSlG2krZMV8ig9P5eGZ5C7AtevDb0q4h4v6C9zj66jQfX8+DWkkmNgpD Yjzss6O8AOrKmUya8ylbqjE63vsZC6XfcZKGKh+EYD8hxIEnX2jFes5RTuD4BNiX u5a3Lg== Received: from mail-dy1-f198.google.com (mail-dy1-f198.google.com [74.125.82.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4ejdq7v5hr-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Wed, 03 Jun 2026 21:46:56 +0000 (GMT) Received: by mail-dy1-f198.google.com with SMTP id 5a478bee46e88-304f23c55b2so5725406eec.0 for ; Wed, 03 Jun 2026 14:46:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1780523216; x=1781128016; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=YI4SVhkK6E0eWN6DtYQRlG4n4FVt4g9e2Fn1B2lcMFM=; b=ONrGrEAbG47obKukUm9JCF4K0xSgJ7sAEhco7EMWcG08HHUV6bx1/jJXYgPreQo8xM B4u1O1htL2fecOFJoah6jRi1Tgu0+nQtZYDpQBmwwkhSNDi2yUWpAYWJR3Cr3q7nzYVN V+5YoWty4mASFuQAa8JGI3uz1+EDxBzVlFNll3iCAisIkg14r/dQ0FzFlh3PVyC1LjGI yN4hAfjjehl1IKVsuYl9LKo2tObYidSLU18O9n3QsrB+eoBSinymMaCpVdgr3E2rcC4T 7NqlmP0sNoXpH0oDG/AzM8pjsFt0EC3TUT7Cdg2nvZwNvwnURSvfAbPJ6qsUz2v/8pjW cQOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780523216; x=1781128016; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YI4SVhkK6E0eWN6DtYQRlG4n4FVt4g9e2Fn1B2lcMFM=; b=em5Y31LEcnfbLApMg9VHBdFSBW+Dzu5ONLj+d8KwkrblIHEb8LRNnHKfL6xOjZKxY7 v//+lHX+aRbLSpxtd8lZr0vZoMzkI8eYQ0qdU74cEOxVXFx/qi71WM1pxv0Peb/1v4nv CiK/2inqs6+Lx6CuVUi8OgUeva1vS6Xv+mCpoETJlD7h0wurhDe1blgR6HStNxtw7B6G dUvNILvyzVkbwWs8ymfygHzNMy8CZriVnFCE+eA4PO6z/TcguX6vdstiBMBQ1fBsl480 g4ZuAw+WThhUEoKoH1BXBqnDotx6eVCVnyLNEL5vB+3pW0M1fwW+FLGYuwafpr70Imxu u4Eg== X-Forwarded-Encrypted: i=1; AFNElJ/CReeXal2kuZwcnzgyyNkSV66vex02BUAxIwXEkJvcVEcD/K+oCjU40RXVC7lIlaaQpV3f9UAG4ZpOLFQ=@vger.kernel.org X-Gm-Message-State: AOJu0YwpFcEzHGC6d+piIbzx8IkhSM83EnBpzaMh/ZfV9FLJBvxcVNvS bvxSQ9bFjKirgjNAga1BreaoXoBBxbk4qtpXjLrnhpuQc2liWRzwdSou1+ATbulUJ3XIHyOzxmA jGiOkyWwNaM1QO/o6mOqES4O3BrUwMI0H+pOuj3bGglN3Qqt4ceMy2TYFygk57yfUlok= X-Gm-Gg: Acq92OFpAR3l938BsaKo/ZsFxgh/JmmHN5tf9peG4eps07MENO/sI8ziM7itsP2RqJh W9gsIB8GJftMt5rUxYEL4z7NUogynlBfmlkieXuUYX48xLPNsm0kEygpD79DEOf3j3LEN2SEkzG uQyxbEGQtB1UWebunJPdKDAk41ek+b0XowySmr3O3qef4kvIJsn1bdNTur4YKS7GKYqhc8w/vY/ yff9wzUnBy82jOhTrsKBYYdWuV0aNt8OeQiIvBBaiczWlzbI5en13WbMrhKR3mEIjhyUmfM1kSf BWChnDLJ2CyjSxAufJ3igW//OAlO5Hy73s2YRwRFtCCgevjWefkVPJcy7q5PMuqW5KORV4m3YIM 6jwdckIkLaxPz8b0kfosEOnMIlJ2z90hMVO6cYGGVrvRUo/g99QzBEG78dYBnWbxxsre94LnK8F HPQIcw7WbB07U= X-Received: by 2002:a05:7300:7250:b0:304:997c:d4b6 with SMTP id 5a478bee46e88-3074fb4847bmr3287895eec.17.1780523216046; Wed, 03 Jun 2026 14:46:56 -0700 (PDT) X-Received: by 2002:a05:7300:7250:b0:304:997c:d4b6 with SMTP id 5a478bee46e88-3074fb4847bmr3287882eec.17.1780523215500; Wed, 03 Jun 2026 14:46:55 -0700 (PDT) Received: from [10.62.37.26] (i-global254.qualcomm.com. [199.106.103.254]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-3074db85e10sm3362286eec.7.2026.06.03.14.46.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 03 Jun 2026 14:46:55 -0700 (PDT) Message-ID: <21facbaa-c001-4e82-954d-f2f6838d41b3@oss.qualcomm.com> Date: Wed, 3 Jun 2026 14:46:54 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema To: Bryan O'Donoghue , Vladimir Zapolskiy , Bryan O'Donoghue , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260523-x1e-csi2-phy-v8-0-a85668459521@linaro.org> <20260523-x1e-csi2-phy-v8-1-a85668459521@linaro.org> <478df3ed-d4ef-43aa-bb84-e2075798542b@kernel.org> <514cf213-5778-45e1-8d70-d3fe27991fcc@oss.qualcomm.com> <7JNJ4dUNz4ennJ5dkzhfLSuVo72JpfZAbprICPRqlRYnSzVDJw6x3h-1nESd_PK-3us9f1V3qOiLiywsTqP8vQ==@protonmail.internalid> <29e8491f-20e8-4082-8943-66bee7e3af1d@kernel.org> Content-Language: en-US From: Vijay Kumar Tumati In-Reply-To: <29e8491f-20e8-4082-8943-66bee7e3af1d@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjAzMDIxMSBTYWx0ZWRfX/Adzap6BJnfH TfzRSFifbdJTsU/nleuyI0N54S/OOpAWgj8tKVYiyyYaQnAC7Jwsm0iSzbZfRRjib9YKj6BRgNi N0N+Kj1qoN1OALnWKjIPug92dPvJ/cE4CjxOcEU/mr6hrRfkcWtQNDo7HOVr3ev/J/uYHcFW49H fp/Lboojnt3TEJYy72pWzbt3DuJ9imVLBUBmSAaqaKFJXXMx4sb/PZiQ88OfrM+qodwh7z8iPn/ ZjzCa7YE9tkGPBqgFfcHg5k3qT0faCku7j02CuEde8bfetevFW62Xx+QksW1A6RYo0+L28dg9ER HlIZaJLCW10FhIge4astq3Ziw0ewf8w6hAbTfi6BEDupaTDTl1nBiLiPGH5gtQm4h4OesBwsT6Y O98zY40rT6VvzYB7dfBGEVvrG9FwUfiiPm3mAXNDW+gR9rO8t7GCHRqiH3NdWx/jcgeLxi1+xxM caY0zf+NBRppAJ5Jgjg== X-Proofpoint-ORIG-GUID: d4eQlkpxGnSq6IFBGZwWrOYFG9bMXfvN X-Proofpoint-GUID: d4eQlkpxGnSq6IFBGZwWrOYFG9bMXfvN X-Authority-Analysis: v=2.4 cv=ccniaHDM c=1 sm=1 tr=0 ts=6a20a0d0 cx=c_pps a=wEP8DlPgTf/vqF+yE6f9lg==:117 a=JYp8KDb2vCoCEuGobkYCKw==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=R4he3g2KxIACXk2nk8MA:9 a=QEXdDO2ut3YA:10 a=bBxd6f-gb0O0v-kibOvt:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-03_06,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606030211 On 6/3/2026 2:18 PM, Bryan O'Donoghue wrote: > On 03/06/2026 21:51, Vladimir Zapolskiy wrote: >>> Actually, one more thing, Why isn't TITAN TOP GDSC here?>>>> + >> If CSIPHYs are true subdevices under the umbrella CAMSS device and well >> described as subnodes, then likely none of power domains are needed to be >> repeatedly described in the children device nodes, since this information >> can be obtained from the parent device by the driver. >> >> Technically 'power-domains' property can be safely removed, I believe. > > The policy is to describe the power-domain dependency fully since DT > describes hardware not software architecture. > > Also for a very practical reason a sub-devices can probe/run > asynchronously of the parent device being active so in fact we do need > to describe the PDs fully. This makes me think. When the PHY devices are made the sub nodes of the top camss node eventually, we can discuss for somethings to be avoided in each child, which we can come to later but for now, you need to add the top AHB clock as well in the PHY node, Bryan.> > --- > bod Thanks, Vijay.