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Wed, 15 Jul 2026 02:28:26 -0700 (PDT) X-Received: by 2002:ac8:5d05:0:b0:51c:1c73:51a6 with SMTP id d75a77b69052e-51cbf170c31mr134547881cf.5.1784107706012; Wed, 15 Jul 2026 02:28:26 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c165a9b7c73sm300603066b.9.2026.07.15.02.28.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Jul 2026 02:28:23 -0700 (PDT) Message-ID: <3f5430ae-7c8b-445a-a980-22c8fa8122ff@oss.qualcomm.com> Date: Wed, 15 Jul 2026 11:28:21 +0200 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 3/3] arm64: dts: qcom: qcm2290: Hook up MPM To: Ulf Hansson , Marek Szyprowski Cc: Konrad Dybcio , Andy Gross , Bjorn Andersson , Rob Herring , Conor Dooley , Krzysztof Kozlowski , Konrad Dybcio , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Ulf Hansson , "linux-pm@vger.kernel.org" References: <20231215-topic-mpm_dt-v1-0-c6636fc75ce3@linaro.org> <20231215-topic-mpm_dt-v1-3-c6636fc75ce3@linaro.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=Ife3n2qa c=1 sm=1 tr=0 ts=6a5752bb cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=hD80L64hAAAA:8 a=KKAkSRfTAAAA:8 a=MDPXCrVRUyKAm27fIg4A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: FDfN8het7YSG6TCtZJoS46YcYnYIVMct X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE1MDA5MiBTYWx0ZWRfX5MSwFSTNNxFr i/eaHHwN+0j+FBjoeyRvh0QZoDPaZVn0UKUEbTqceMiL+LvYEBPWRo1tIhpkcA71jLK3AJ2f5Us Hle/droBZkXIoLerPwv486dsBJT8ZZNYMt9XXpaG0vkbIj/QAdg5ks7Usyxpb/p7pZZu1LvZZji TUIZa5N1Krfkvaq6w5vLBZyRTpw1Na9M3Xbaixox7Fb+hqkeG+QNkvqGK3081i5sfGrT5106UiI uUU0ECDrCgq2VQSnoS/unLHeLbo5Ox8PB8549s+kP6+g9qOXVtsNhRS3kQ+vtigVmcLbxn5LsR4 WPTEjQY14ZfMvn7+7iN2XSBZrl/Yg40qydYPJVBz7IlgxN0lmlAwzx6ELurHW+NbgYVHcok6lbJ WYBy9PetMqNWwPkFTcdmgMqg4BSftwp4+sdTuXn843XRtsWglEIfSQsPtgB1e7tVumXRfAvckYf uG5ZUOSjk+betyd8cjw== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE1MDA5MiBTYWx0ZWRfX7I9fTQcyOxiZ 5KU3aQvnElVdQBXh0ujycq5ZY3ZGjynOz7aW44Oy1xihptNp4vIfvENPVPnuMyNhp5QFLkA4TV2 T4stkH6UBDYVpIooEVuAc6azcEaHMzk= X-Proofpoint-GUID: FDfN8het7YSG6TCtZJoS46YcYnYIVMct X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-15_02,2026-07-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 bulkscore=0 clxscore=1015 adultscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607150092 On 7/14/26 3:04 PM, Ulf Hansson wrote: > On Thu, Jul 9, 2026 at 1:41 PM Marek Szyprowski > wrote: >> >> On 15.12.2023 01:01, Konrad Dybcio wrote: >>> Wire up MPM and the interrupts it provides. >>> >>> Signed-off-by: Konrad Dybcio >>> --- >>> arch/arm64/boot/dts/qcom/qcm2290.dtsi | 42 +++++++++++++++++++++++++++++------ >>> 1 file changed, 35 insertions(+), 7 deletions(-) >>> >>> diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi >>> index ce04d0acdede..0911fb08ed63 100644 >>> --- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi >>> +++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi >>> @@ -199,6 +199,7 @@ CPU_PD3: power-domain-cpu3 { >>> >>> CLUSTER_PD: power-domain-cpu-cluster { >>> #power-domain-cells = <0>; >>> + power-domains = <&mpm>; >>> domain-idle-states = <&CLUSTER_SLEEP>; >>> }; >>> }; >> >> >> This patch landed long time ago in mainline as commit e3f6a6994041 >> ("arm64: dts: qcom: qcm2290: Hook up MPM"). > > Without detailed HW expertise (still learning about the UnoQ), it > looks to me that the HW may have been modelled upside down. > > The power-domain-cpu-cluster should probably *not* be the consumer of > the mpm, but rather the opposite. This is how qcom,rpmh-rsc works, for > example. I think that's right - we only need the "CPU_SS going off" notification Konrad