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Tue, 20 Oct 2026 06:43:59 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6b38a1337d2sm5441811a12.1.2026.10.20.06.43.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 Oct 2026 06:43:58 -0700 (PDT) Message-ID: <11891012-6a4e-4d7c-8155-cd8266e00bc8@oss.qualcomm.com> Date: Tue, 20 Oct 2026 15:43:56 +0200 X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] arm64: dts: qcom: kaanapali: Split cluster power domains To: Xin Liu , andersson@kernel.org, konradybcio@kernel.org, abelvesa@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com References: <20261020063721.2306679-1-xin.liu@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20261020063721.2306679-1-xin.liu@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=a7WlZkSF c=1 sm=1 tr=0 ts=6ad77020 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=0piBkx7tkWQQxamy7twA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-ORIG-GUID: MPgsQkj_TvqiuzIOR15acoTd21L6-t18 X-Proofpoint-GUID: MPgsQkj_TvqiuzIOR15acoTd21L6-t18 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIwMDA1NCBTYWx0ZWRfX3FyTeWYhVVbh 3Ikjs6NhP6uD5GahnffAYFTFQJmWffYBLmujiz5kD3EG8X++c/TuaKmyNkQYTF+1JIx0nM3mRqR VSZeIqP9JVh0wMhNmVAg/iPsGC9HSxMVJ9FQhOskE3grXuChc23KPnLYlEq1ayDbpxwggxchP23 43tzVfNueW2+PN2vt+fvrpu0gFxyn9Mglvx4fFxZnk1jr6ONE3XoEwWjfwMFwFmuOARkMpaVP26 UN25lryTVQ6WLcDM9+9KqFQyXUXZx5GYDjVVIGOUWmjNOeadXglVdEUp5ysqto5m7PP+qNgZh85 SY9iwTbQQTaWQFAJk5wUrmDFAfeayQ3CoxS04D5Ern66Tv0m0vrg4HM8UIh4l8E5DlcmJd4hf4J PDEoGNtLYPVLiiQDO6One2mMmGitKmOkVKBPj+LDkNP5rW8Rcat8osgGbA4ZQAmmjRnYy2DKb/1 vgM8Jx1a2XWyeU5ebQw== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIwMDA1NCBTYWx0ZWRfX065pkwRjswpc omyX9RClMfhbHe95cTGPb2qX2kJ+7EElV6B2esPPaau6BRma//0y0OeGMbtVXks2l+CMPHYV0xY xVO8ajWtSsnQeCNdkgy0f9y9aRGPhKA= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-20_02,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 phishscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 adultscore=0 suspectscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610200054 On 10/20/26 8:37 AM, Xin Liu wrote: > KNP has two CPU clusters (cluster0: cpu0-cpu5, cluster1: cpu6-cpu7), > but both share a single cluster_pd. Even though their domain-idle-state > configurations are identical, sharing one power-domain node means the > kernel's PSCI domain idle refcounting merges both clusters together, > preventing either cluster from entering idle independently. > > Split cluster_pd into cluster0_pd and cluster1_pd so each cluster is > tracked separately by the PSCI domain idle logic. > > Link: https://lore.kernel.org/linux-arm-msm/1ee9b624-4580-4650-8e48-d517ce9eee3d@oss.qualcomm.com/ > Signed-off-by: Xin Liu > --- Reported-by: Konrad Dybcio Reviewed-by: Konrad Dybcio Konrad