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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b97f13e8e9dsm191715266b.13.2026.03.18.04.10.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Mar 2026 04:10:34 -0700 (PDT) Message-ID: <78efa6d6-5204-4146-b95b-9ebc18a546f5@oss.qualcomm.com> Date: Wed, 18 Mar 2026 12:10:32 +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 v3 2/3] arm64: dts: qcom: Introduce Eliza Soc base dtsi To: Krzysztof Kozlowski , Abel Vesa , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260318-eliza-base-dt-v3-0-8a50bd2201ed@oss.qualcomm.com> <20260318-eliza-base-dt-v3-2-8a50bd2201ed@oss.qualcomm.com> <7a8c31ff-6458-4840-9b8e-a540a84244ea@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <7a8c31ff-6458-4840-9b8e-a540a84244ea@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=A7Zh/qWG c=1 sm=1 tr=0 ts=69ba882c cx=c_pps a=UgVkIMxJMSkC9lv97toC5g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=g9LQQ-Mqx3jMhqGx0noA:9 a=QEXdDO2ut3YA:10 a=1HOtulTD9v-eNWfpl4qZ:22 X-Proofpoint-GUID: qC-vVooCWv9BHET8h97pMHMOKi1YnKEZ X-Proofpoint-ORIG-GUID: qC-vVooCWv9BHET8h97pMHMOKi1YnKEZ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE4MDA5NSBTYWx0ZWRfXwqC2rU7CaOZ0 ObT511H/YS4kYYxHlDboozyS/9j4oW6WHYZ/lET1kQgDaFeCSosyNVQhq9Dg/OGakXdqiPk3eMw BiaUOZWby2J2kOKEk5n5eQ7KKyIAvl1EILHcdMuD5ACtCmny1YCHFfeYD7/fUW2mbZPjEkQg8Rh KXU7PVWTpRHDrAHLLCTrV05UBUWI2bKiVYhCKAEBLb3QSKVBQ3jtppUa1lduoYWuga6uIQY1Odw w8rm9l99OhmCOGCMq1GrhcVD4Bu/JDZpMezxYG/GsaieefpFNNjSw4z37P/u+yYhpYrGMOlXMzt FggTIQXZtw8VRnLrs6tPr+UokmnxEFZtC7bXLlYh4xdba0sXaW16XH6AwflcZE+AUhFbBmXwbfa T4pEWIYr2wpWUPQ9zXlZXYFO4mGou9iUsfzyEY/ltKyz1pGfDiDLdaJ0Bz0+vWrut/pGvfldlrd OEtafqYSdeZULDaiN5Q== 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=2026-03-18_01,2026-03-17_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 adultscore=0 malwarescore=0 phishscore=0 spamscore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603180095 On 3/18/26 11:45 AM, Krzysztof Kozlowski wrote: > On 18/03/2026 11:19, Abel Vesa wrote: >> + }; [...] >> + cpu_pd7: power-domain-cpu7 { >> + #power-domain-cells = <0>; >> + power-domains = <&cluster_pd>; >> + domain-idle-states = <&cluster2_c4>; > > ...here. > > Each cluster has different entry/exit latencies, but @Konrad insisted to > represent here only one cluster. I believe it is not correct, but I am > fine with it, however my question remains: how does this work in such > case - which domain idle state is really used? > > It's more of a question to Konrad since he wanted one cluster... I *believe* cpuidle functions fine as-is (i.e. each CPU gets assigned the correct idle states etc. and the system/"one big cluster" PD is also correct).. I am open to being proven wrong Konrad