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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-arm-msm@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-Authority-Analysis: v=2.4 cv=IsAutr/g c=1 sm=1 tr=0 ts=6a02ea49 cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=UOnGL9-HqUUrvkLjBzwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR:22 X-Proofpoint-GUID: MLEI-2Eisvyc_uBYBq5YwlMsTt39HHWl X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTEyMDA4OSBTYWx0ZWRfXymYFtFvVi5Zb o5Bq6XQ/WmsygnovzL5l/XLgTFOTF947mVzV5z+RVrJL5OSR0oom1SZIWHv86Pvrlgcjlgq0+Le ciAi3zxFX1xbENicrS7TLt4lhiKuJbobaRY8bjb1HwKIK14NfilEKN4NSrbykda6KqKf9DIUlJa PdGgm7i7MgHvawW/4aDSHGGU7IROk5XXMXoLrUlObiFLOtN6il2tdnOLNWNGWf4al4bNRHhrXZg I+he8kZwgne2ysBrns86XZ2TaH30K4vb+xPuMmuTl4NGVfiWHHuKVtAor0qkuH45vpf1OMnfexw zx89X2cQUw9ryAQ5bhxEa7d6ndwIBCtcfq7s77x52VZ287NRRAEdT2+5mc4tSEdLBuaKJCo9hXI lc7SiNKCV5kMzvYgvkCw0CSK2lhcEDaGnbvI72G7dxAoYZtLw7hGJim8uN3tCLVqz/CHRI/ztWC Uxv6MPJafT4osNGSNOw== X-Proofpoint-ORIG-GUID: MLEI-2Eisvyc_uBYBq5YwlMsTt39HHWl 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 lowpriorityscore=0 spamscore=0 bulkscore=0 clxscore=1015 phishscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 adultscore=0 suspectscore=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