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Mon, 13 Jul 2026 01:21:22 -0700 (PDT) X-Received: by 2002:ac8:5d08:0:b0:51c:217d:d772 with SMTP id d75a77b69052e-51cbf0be5d9mr84321051cf.19.1783930881843; Mon, 13 Jul 2026 01:21:21 -0700 (PDT) Received: from [192.168.1.73] ([92.247.57.178]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69ac41d7ceesm7586462a12.23.2026.07.13.01.21.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 13 Jul 2026 01:21:21 -0700 (PDT) Message-ID: <6de0a8e6-591f-4526-b5c2-431711dde1db@oss.qualcomm.com> Date: Mon, 13 Jul 2026 11:21:19 +0300 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 v4 1/5] media: qcom: camss: Populate CAMSS child devices via DT To: Krzysztof Kozlowski , linux-media@vger.kernel.org Cc: bryan.odonoghue@linaro.org, vladimir.zapolskiy@linaro.org, loic.poulain@oss.qualcomm.com, mchehab@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andersson@kernel.org, konradybcio@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20260706071113.383215-1-atanas.filipov@oss.qualcomm.com> <20260706071113.383215-2-atanas.filipov@oss.qualcomm.com> <389ff33a-b319-4f2e-9410-8ae962f2e844@kernel.org> Content-Language: en-US From: Atanas Filipov In-Reply-To: <389ff33a-b319-4f2e-9410-8ae962f2e844@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzEzMDA4NiBTYWx0ZWRfXz3SvFp0pUHOg POpnaxfsAOJICgHjfxmpIwE/Zo+UmKnDMmGTIFyCuxV9cyIOc1RxFMJ/7lH4rV0IVLgscLl09oo qJlL9Tx68XcblrUSs6vaktAx+Ar8kx4= X-Authority-Analysis: v=2.4 cv=OsJ/DS/t c=1 sm=1 tr=0 ts=6a54a003 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=ybD9qRDIDfZaXNPQ7Ca20A==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=KKAkSRfTAAAA:8 a=ka1dcg31Si149idUFP4A:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzEzMDA4NiBTYWx0ZWRfXycUKac2ksr0s jbbm72ocobzmfZCL4uI2C5yUtV0nEKp4+5g02eHRglaovmhVfnr1N0Ej1MU/73l6nCSrVQn5B13 hdSvVEDBslaHRCBLAEay+ZSD6hREiyQV33y28X0K1rdXi3xVKMSUHbO621Ew+Xzawd7nlOq731l 8eoCmViC5GUljkzi3wwVx532BoKUkdXGMyfsvwWhnguu6qOCwQPd+IjmcqCmscKHgTbS+b4AmDr rYFVNDMrkBNs6RWleAquY2O7BuVsfsr7jA/ITzedP7/w8Lkik6P3icUYftC69vJHwKvnIrN1nkV 1YqfGZMiMA85a43wChE1bAW72XSHIdjMe7a054ZcxSB9z8zOCIeaHMI1c9vlgq/Sfmkvoz/og/r Cj+xuMsFoQe1W5k7H+fa1BjGlLqDSiDXlXKArR0QW4wvqToGbZhgG2WmrUMi0z6t10r1t3G6eEw BLBXTK/dMSHGR99h0GA== X-Proofpoint-GUID: IPbpnKTDHEOpn9hCrp8XkEY7YiShbd1y X-Proofpoint-ORIG-GUID: IPbpnKTDHEOpn9hCrp8XkEY7YiShbd1y X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-13_02,2026-07-10_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 spamscore=0 clxscore=1015 impostorscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607130086 On 7/6/2026 3:09 PM, Krzysztof Kozlowski wrote: > On 06/07/2026 09:11, Atanas Filipov wrote: >> From: Bryan O'Donoghue >> >> Use devm_of_platform_populate() so that child nodes declared under the >> CAMSS device tree node (e.g. OPE) are automatically instantiated as >> platform devices. This is required now that CAMSS is modelled as a >> simple-bus and ISP blocks such as OPE are described as child nodes. > > I do not understand this rationale. How is this required now? Are > existing DTS broken and do not work? Then this needs to be explained. > > Best regards, > Krzysztof You are correct. Existing DTS are not broken. This patch is dropped in v5. JPEG is modelled as a standalone peer node, not a child of camss. Best regards, Atanas