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Thu, 11 Sep 2025 09:20:26 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 58B9KP1u029809 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 11 Sep 2025 09:20:25 GMT Received: from [10.206.103.106] (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.24; Thu, 11 Sep 2025 02:20:02 -0700 Message-ID: <3d26b554-727a-44cb-a1a9-56f49775ba3a@quicinc.com> Date: Thu, 11 Sep 2025 14:49:59 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/4] arm64: dts: qcom: monaco-evk-camera: Add DT overlay To: Vikram Sharma , Dmitry Baryshkov CC: , , , , , , , , , , , , , , , , , Ravi Shankar , Vishal Verma References: <20250909114241.840842-1-quic_vikramsa@quicinc.com> <20250909114241.840842-4-quic_vikramsa@quicinc.com> <8104bb41-e827-4daa-bc96-9b6678a9d345@quicinc.com> Content-Language: en-US From: Nihal Kumar Gupta In-Reply-To: <8104bb41-e827-4daa-bc96-9b6678a9d345@quicinc.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: bvSiUd5GLpTMlo4CYzoLmf7J1E0A9a6m X-Proofpoint-GUID: bvSiUd5GLpTMlo4CYzoLmf7J1E0A9a6m X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTA2MDAxOCBTYWx0ZWRfX/rhFzt0/h4Y8 BkpTEowefkYsh1VecQco+uKmxpf5mFLU7S/9U52e5KrjN9CLbBvLGvYYsniy9sz9fIZouNXQwSW tJEBCQHWJRisF4Ix/Z75MY6cQszzDcenQPLQ6S8VTUwSd3WStu9nd8c5KdEfPA3fYzyxrxzSvz4 +GTAW1k22WuuVYiM7h4xAG5Ajx5P6nJbstroT2PnRKIn/XYZ6vdqvG4x5VrMnwEsWsfxd/9iOzZ CzdOAOYAENf4Fjl/r590INhhXkfezPQxG2HQn8qZcG4Q/iTizNEXyDynnTjyX8z1CjR6zKMeSf5 VS9x26S8Ea35dONBuE8eSrCV4WtauqlEO11lUyq7sAw9cfMO9p+H2WTDx5xeBA9J4HBW3bS/rOw Xf9uf+NC X-Authority-Analysis: v=2.4 cv=G4kcE8k5 c=1 sm=1 tr=0 ts=68c2945a cx=c_pps a=ouPCqIW2jiPt+lZRy3xVPw==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=GEpy-HfZoHoA:10 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=COk6AnOGAAAA:8 a=eIUALLlfMK20frBwWbIA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=TjNXssC_j7lpFel5tvFf:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-10_04,2025-09-10_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 bulkscore=0 suspectscore=0 clxscore=1011 malwarescore=0 adultscore=0 impostorscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509060018 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250911_022033_682518_CC8D40E4 X-CRM114-Status: GOOD ( 19.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10-09-2025 12:33, Vikram Sharma wrote: > On 9/9/2025 7:31 PM, Dmitry Baryshkov wrote: >> On Tue, Sep 09, 2025 at 05:12:40PM +0530, Vikram Sharma wrote: >>> From: Nihal Kumar Gupta >>> >>> Enable IMX577 sensor using the CCI1 interface on Monaco EVK. >>> Camera reset is controlled through an I2C expander, >>> and power supply is managed via tlmm GPIO74. >> Why is done as an overlay? Is it a seprate mezzanine? > It’s not a separate mezzanine; monaco-evk does not come with an attached camera > sensor by default. > The overlay simply reflects an optional camera sensor attachment (e.g., IMX577 > on CSIPHY1) > That is why camera sensor is configured in monaco-evk-camera.dtso instead of > modifying the base monaco-evk.dts. > Please suggest and alternative approach if you feel this is not correct Dmitry, Do you agree with this justification or you have a follow-up comment? Can we post v2 with the same change addressing other comments. >>> Co-developed-by: Ravi Shankar >>> Signed-off-by: Ravi Shankar >>> Co-developed-by: Vishal Verma >>> Signed-off-by: Vishal Verma >>> Signed-off-by: Nihal Kumar Gupta >>> Signed-off-by: Vikram Sharma >>> --- >>> arch/arm64/boot/dts/qcom/Makefile | 4 + >>> .../boot/dts/qcom/monaco-evk-camera.dtso | 98 +++++++++++++++++++ >>> 2 files changed, 102 insertions(+) >>> create mode 100644 arch/arm64/boot/dts/qcom/monaco-evk-camera.dtso >>> >>> diff --git a/arch/arm64/boot/dts/qcom/monaco-evk-camera.dtso b/arch/arm64/boot/dts/qcom/monaco-evk-camera.dtso >>> new file mode 100644 >>> index 000000000000..5831b4de6eca >>> --- /dev/null >>> +++ b/arch/arm64/boot/dts/qcom/monaco-evk-camera.dtso >>> @@ -0,0 +1,98 @@ >>> +// SPDX-License-Identifier: BSD-3-Clause >>> +/* >>> + * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved. >>> + */ >>> + >>> +/* Camera Sensor overlay on top of Monaco EVK Core Kit */ >>> + >>> +/dts-v1/; >>> +/plugin/; >>> + >>> +#include >>> +#include >>> + >>> +&{/} { >> Is this a different product than just Monaco EVK? > No. >> >> >>> + vreg_cam1_2p8: vreg_cam1_2p8 { >>> + compatible = "regulator-fixed"; >>> + regulator-name = "vreg_cam1_2p8"; >>> + startup-delay-us = <10000>; >>> + enable-active-high; >>> + gpio = <&tlmm 74 GPIO_ACTIVE_HIGH>; >>> + }; >>> +}; >>> + > > Best Regards, > > Vikram > Regards, Nihal Kumar Gupta