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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc735d2dcsm351116166b.12.2026.02.17.04.01.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Feb 2026 04:01:17 -0800 (PST) Message-ID: <124c661b-db25-466a-a163-99ca336a3e70@oss.qualcomm.com> Date: Tue, 17 Feb 2026 13:01:15 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/3] Add CAMSS support for SM6350 To: Imran Shaik , Luca Weiss , Bryan O'Donoghue , Robert Foss , Todor Tomov , Vladimir Zapolskiy , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bryan O'Donoghue , Bjorn Andersson , Konrad Dybcio , Taniya Das Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260213-sm6350-camss-v3-0-30a845b0b7cc@fairphone.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjE3MDA5OSBTYWx0ZWRfXxkn2s2HeEBC8 bR4vI4ONa9avyL0PWztUcto71OEbdzhpjIlrS8HX1jpN6sor/9V//l8SnE8hS7fRYrTds51NUvL 1mN5zvhIypU/oYxY2IdcmuShC+irO6XDliWAiVq1iH8ZMmPGA3K2NFfJPW+s3Hq3T9+/7OZ7qsp 1CQ/mbd1ic8lYWEC4za9UsYb+7i42DBrU2dZQ9EDTXu+1k0M8IdqO1W+JUJ5U+ETc/XYK/qP+yg GfeacZNBH6lsdK7tG4VL/ClFYSCBexjthP/w76RrplynEfrpxukdr4+1gmAN0zCvmnn6m7lp4mB NLjyHmdhsVJx1pG924mNKH4NWU60iP8yVTSKogt93wmsV9KBZw6zU/7k4uIolpwPNjkRRj29/X/ OlgiWh8SGd3Lcf1Mk2eYXvF5dYBZtp5CTF7KMLKScTwNix4jP2CTQMmegxQeqKEUjajya2EcVql DZiS4MktUWQqdfK6QuA== X-Proofpoint-ORIG-GUID: tZBhodwrbxWX0P2Dz6uuMAwxFfub8yaA X-Authority-Analysis: v=2.4 cv=BryQAIX5 c=1 sm=1 tr=0 ts=69945890 cx=c_pps a=1Os3MKEOqt8YzSjcPV0cFA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=fxqAw4-zz0YW6xlzh2kA:9 a=QEXdDO2ut3YA:10 a=hhpmQAJR8DioWGSBphRh:22 X-Proofpoint-GUID: tZBhodwrbxWX0P2Dz6uuMAwxFfub8yaA X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-17_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 phishscore=0 clxscore=1015 adultscore=0 bulkscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602170099 On 2/17/26 12:56 PM, Imran Shaik wrote: > > > On 16-02-2026 04:34 pm, Konrad Dybcio wrote: >> On 2/13/26 2:15 PM, Luca Weiss wrote: >>> Add bindings, driver and dts to support the Camera Subsystem on the >>> SM6350 SoC. >>> >>> These patches were tested on a Fairphone 4 smartphone with WIP sensor >>> drivers (Sony IMX576 and IMX582), the camera pipeline works properly as >>> far as I can tell. >>> >>> Though when stopping the camera stream, the following clock warning >>> appears in dmesg. But it does not interfere with any functionality, >>> starting and stopping the stream works and debugcc is showing 426.4 MHz >>> while the clock is on, and 'off' while it's off. >>> >>> Any suggestion how to fix this, is appreciated. >>> >>> [ 5738.590980] ------------[ cut here ]------------ >>> [ 5738.591009] gcc_camera_axi_clk status stuck at 'on' >> >> FWIW 845 has .halt_check = BRANCH_VOTED here, which translates into >> 'dont check the state at disable', this one has BRANCH_HALT (i.e. spin >> and keep checking the hw state) >> >> +Taniya would BRANCH_VOTED be fitting for 6350 too? ^ >> > > The parent RCG of this clock is under NoC control, and seems like there is no vote on the NoC while disabling this clock, hence this issue is observed. > > The BRANCH_HALT_VOTED/BRANCH_HALT_SKIP should help, or if the NoC voting is removed after the clock disable then also this issue should be resolved. This is very useful, thanks for the insight! Is any of these solutions specifically preferred from your side? Konrad