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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-183190aa3ebsm30791906c88.8.2026.10.19.23.37.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Oct 2026 23:37:22 -0700 (PDT) From: Xin Liu To: 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, xin.liu@oss.qualcomm.com, tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com Subject: [PATCH v1] arm64: dts: qcom: kaanapali: Split cluster power domains Date: Mon, 19 Oct 2026 23:37:18 -0700 Message-ID: <20261020063721.2306679-1-xin.liu@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: BFgAtDqAkBZSI3yw1oWIvwM8DSi88vkO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIwMDAyNiBTYWx0ZWRfX6kkSB9gdEwNX IK4LDbSWz0DloTZfhdmAeAKrWwSDhEwICcMI+k60ssp7rT/3ShcPKRXxA3nkQE0isI9LJJWkQ/B 91p2tpizspL+HaaL5OVn7vONyYsZQ4u220OTM+8TJLRvWj8MPphB4lFavzO0zIK+DwZoz3V8eS5 f7AsaQTuND0otnmwBp/m/VZ/gXgOuv1VRnIA2tjsXzQPObFrdlqSFLhAH7Iz0//pzkOylo7BM+C cyS1qSc70wKpTpA/zgzlYdxrirwdvhti/CEC9jaYh3rihHxdtidVzZE+tbGzQ3Lad74Smu4+pSF vki6TkxvI43jVOMY4Znf20930cUZwBX3xMbmUReAzwys4zt8WvYvvjg7ypEWGKeI8Ku6fZ3eIEF Zk08s5tO9uhCdzWl3c9fqyqTFFwhHv5MD7WoGOAqT/UIfTY6CwNrZ15r4CAD440i0wTCYCgzFKM Yb+RZ8Kdez0h8uggW9w== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIwMDAyNiBTYWx0ZWRfX8PzTL1N9YfPH jpKchQPfzHRQI+O/xH3SMix5L2I6CH+SB18ZiHmohnvyyzpz4uVFOBkVFMIC/6lBlGLvJUrS70k hBqeGTGrwwID4tBZvHCgblpjqEYYlJc= X-Authority-Analysis: v=2.4 cv=LpcHWXdc c=1 sm=1 tr=0 ts=6ad70c24 cx=c_pps a=kVLUcbK0zfr7ocalXnG1qA==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=zuyij4ZH1eBwXV_bZR4A:9 a=vr4QvYf-bLy2KjpDp97w:22 X-Proofpoint-GUID: BFgAtDqAkBZSI3yw1oWIvwM8DSi88vkO 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_01,2026-10-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 phishscore=0 clxscore=1015 impostorscore=0 malwarescore=0 suspectscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610200026 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 --- arch/arm64/boot/dts/qcom/kaanapali.dtsi | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi b/arch/arm64/boot/dts/qcom/kaanapali.dtsi index e48a179d0722..5428f3f44361 100644 --- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi +++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi @@ -273,53 +273,59 @@ psci { cpu_pd0: power-domain-cpu0 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd1: power-domain-cpu1 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd2: power-domain-cpu2 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd3: power-domain-cpu3 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd4: power-domain-cpu4 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd5: power-domain-cpu5 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster0_pd>; domain-idle-states = <&cluster0_c4>; }; cpu_pd6: power-domain-cpu6 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster1_pd>; domain-idle-states = <&cluster1_c4>; }; cpu_pd7: power-domain-cpu7 { #power-domain-cells = <0>; - power-domains = <&cluster_pd>; + power-domains = <&cluster1_pd>; domain-idle-states = <&cluster1_c4>; }; - cluster_pd: power-domain-cluster { + cluster0_pd: power-domain-cluster0 { + #power-domain-cells = <0>; + domain-idle-states = <&cluster_cl5>; + power-domains = <&system_pd>; + }; + + cluster1_pd: power-domain-cluster1 { #power-domain-cells = <0>; domain-idle-states = <&cluster_cl5>; power-domains = <&system_pd>; -- 2.43.0