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Tue, 12 May 2026 01:52:25 -0700 (PDT) X-Received: by 2002:a05:6a20:258f:b0:3a3:21db:8ecb with SMTP id adf61e73a8af0-3acd4280430mr3012121637.14.1778575944726; Tue, 12 May 2026 01:52:24 -0700 (PDT) Received: from [10.217.217.99] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c8267688e2esm11432629a12.8.2026.05.12.01.52.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 12 May 2026 01:52:24 -0700 (PDT) Message-ID: Date: Tue, 12 May 2026 14:22:15 +0530 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 8/8] arm64: dts: qcom: eliza: Add support for MM clock controllers To: Bryan O'Donoghue , Bjorn Andersson , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Konrad Dybcio , Maxime Coquelin , Alexandre Torgue Cc: Ajit Pandey , Imran Shaik , Jagadeesh Kona , linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org References: <20260409-eliza_mm_cc_v2-v2-0-bc0c6dd77bc5@oss.qualcomm.com> <20260409-eliza_mm_cc_v2-v2-8-bc0c6dd77bc5@oss.qualcomm.com> <328b388c-438e-4f91-9384-0dad903355a5@oss.qualcomm.com> Content-Language: en-US From: Taniya Das In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTEyMDA4OSBTYWx0ZWRfXx0ofnYVLBNyl xXYb8QuJsVZW6IV8EPTrchZxzakFc52uPxd8G6dsQkIzwP31+V+6XzLEgy8mg4ypYCXVVmo/SEM YpetpxUx50OxJar58eEFPCTP/wjWxnvpIk9g2OfosEYrw0vlehPf6xuxK4aAjExInPIelSyypKy ///SfhZBQTRyaqnwycQNCvsMCjygWP0wCQEaY1Wi0BCNKdrxG1LmFTC1NYbceStUq6Oc8t4Mf6e TZLLQq4a709mmAuGVtZv+By6t8G+hEM+HmNnGcEAN84aOlGcwIRMC/jIOqJan547OoS2UTqf80Z eOul8shcPbnFvYqjhjZLfmw4bCNbASTKmj0wCoArlonsdTRlFjp1KjsymCFt5Gtb+kQY5QEhW4n jaGgNYz/QQIwncowXqrEEIApxsNed1zqoCqVjaa1ykjyeFU2a9gfRAxn7mYa/kMSgbBJ6CqNIUK NwUMgw01h/U6MHfeK6w== X-Proofpoint-GUID: ScvUHLwCboDI1vzem7NUHVAmEQuCKqEE X-Proofpoint-ORIG-GUID: ScvUHLwCboDI1vzem7NUHVAmEQuCKqEE X-Authority-Analysis: v=2.4 cv=Y5XIdBeN c=1 sm=1 tr=0 ts=6a02ea49 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=UOnGL9-HqUUrvkLjBzwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-11_05,2026-05-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605120089 On 4/10/2026 1:56 PM, Bryan O'Donoghue wrote: > On 10/04/2026 04:55, Taniya Das wrote: >>> Why do these two controllers have no power-domains ? >> Bryan, on Eliza the videocc and camcc are connected on CX and MXA. > > Shouldn't you at least have: > > power-domains = <&rpmhpd RPMHPD_CX> ? > > And even > > power-domains = <&rpmhpd RPMHPD_MX>, >                 <&rpmhpd RPMHPD_CX>; > power-domain-names = "mx", >                      "cx"; > > Konrad's suggestion to me was that MXA should have a vote in my CSIPHY > series I think he and Jagadeesh discussed it but I'm not sure if they > _concluded_ what was the right thing to do. > > Right now I'm representing the dependency. MXA is always on ... and > there's nothing to do voting for it @ MX ? > The clock controller drivers only request the minimum operating level for the power domains. Since the cx and mx rails are already at the minimum operating level when APPS is active, explicit voting for these power domains is not required from camcc. -- Thanks, Taniya Das