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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc769111fsm691030866b.57.2026.02.20.06.36.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 20 Feb 2026 06:36:48 -0800 (PST) Message-ID: Date: Fri, 20 Feb 2026 15:36:46 +0100 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 v2] arm64: dts: qcom: sm8750: Add camera clock controller To: Taniya Das , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Ajit Pandey , Imran Shaik , Jagadeesh Kona , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa References: <20260220-sm8750_camcc_dt-v2-1-e4b7faf35854@oss.qualcomm.com> <13553877-a4d0-47ad-88ce-3d4d5b353101@oss.qualcomm.com> <00a1e492-1235-4dfe-ba0c-b1cb7c43ae22@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <00a1e492-1235-4dfe-ba0c-b1cb7c43ae22@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=TJVIilla c=1 sm=1 tr=0 ts=69987182 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==: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=EUspDBNiAAAA:8 a=OnNOMOsO3_7Dkr8-JnMA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: 3wYoVFQKcHl89KZyP45XbbCO8snt1p_b X-Proofpoint-GUID: 3wYoVFQKcHl89KZyP45XbbCO8snt1p_b X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjIwMDEyNyBTYWx0ZWRfX4BZqA38pSQZ7 wIUctXnbB4GbY6nbh5UAnNmqJ6uSe6QIcpUKSlvK2i3TCRkj3GszFuY1Nf9dp6sG37Y73y7ZuBS t3UdGESTUPZRvAlV9yuK8YdR19iym1Kg/rq2gfe8PpWmjkOEsn3O40S2byfGhE6zCSFq6nUWK8b brLhjBZJEJ3NNsh6uaM+tzyBz84zW0ugkJ275MYs6eSOWOdKxKV+CAgBuuHMS7b4r+t6JEDLAQW GK5Ainn3WtFw4AwvUx/ZcxupsxJD1uRA7sr14lqyjdfwGD1XyGcoXFBFoQ+iSgztcw50F7SYOZc /PNaPbty06Gil1tWAbuRyNUFpJhmzcShF00cUQn/nfnGGTU9aNUR3AOUpJ43E8FAmSnUUcQrRu8 8XWIZCuCryD+YYAwS6Uf41+2mAPkbaQzFsHL4hRWaTJqrpC5eellwT4rtwih3dLtYzFv2jhyd1S tWejDjqqg+LOIu/tsIw== 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=2026-02-20_01,2026-02-20_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 bulkscore=0 phishscore=0 suspectscore=0 adultscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602200127 On 2/20/26 3:28 PM, Taniya Das wrote: > > > On 2/20/2026 7:55 PM, Konrad Dybcio wrote: >> On 2/20/26 3:23 PM, Taniya Das wrote: >>> >>> >>> On 2/20/2026 4:25 PM, Konrad Dybcio wrote: >>>> On 2/20/26 11:28 AM, Taniya Das wrote: >>>>> The camera clock controller is split into cambistmclk and camcc. The >>>>> cambist clock controller handles the mclks and the rest of the clocks of >>>>> camera are part of the camcc clock controller. >>>>> Add the camcc clock controller device node for SM8750 SoC. >>>>> >>>>> Reviewed-by: Abel Vesa >>>>> Signed-off-by: Taniya Das >>>>> --- >>>>> Changes in v2: >>>>> - Update the MxC phandle to use MX for camcc node. >>>> >>>> My point was that both MXC and MXA are used >>>> >>> >>> My bad, even I think I got confused with this. We really do not need MxA >>> voting as it is always ON. We can sustain with MxC only. >> >> Does that mean we don't even need any particular RPMH level on MxA >> for this usecase, just for it to be on (which as you said it always is)? > > Particularly for this usecase you do not need. Thanks for tracking this down Konrad