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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ac600a0619sm2153127a91.7.2026.10.13.18.13.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Oct 2026 18:13:33 -0700 (PDT) Message-ID: <68acff8e-2696-4ff9-9bfa-3b23e2b15fd1@oss.qualcomm.com> Date: Wed, 14 Oct 2026 09:13:28 +0800 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 1/4] arm64: dts: qcom: hamoa: Add CoreSight nodes for APSS debug block To: Konrad Dybcio , Bjorn Andersson , Konrad Dybcio , Abel Vesa , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260922-add-etm-devices-for-multiple-qcom-platforms-v1-0-c2a8c3225a2e@oss.qualcomm.com> <20260922-add-etm-devices-for-multiple-qcom-platforms-v1-1-c2a8c3225a2e@oss.qualcomm.com> <7fccb993-8605-4eb6-afd5-94edef1d487d@oss.qualcomm.com> Content-Language: en-US From: Jie Gan In-Reply-To: <7fccb993-8605-4eb6-afd5-94edef1d487d@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=GL+dgeNK c=1 sm=1 tr=0 ts=6aced73f cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=i2zWceGxLG-rlMTYNyUA:9 a=QEXdDO2ut3YA:10 a=iS9zxrgQBfv6-_F4QbHw:22 X-Proofpoint-ORIG-GUID: UcKdBEKOcxDvDn69aaCZotLKDFU6H6JX X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE0MDAwNCBTYWx0ZWRfX2EBBHy+99gV/ VEsgwHh38R2WWayNHtyTvuClWkCLwmkAC32Hny46BuP8HCzTI12h1hfKK7Cyupeouf0BJUW+weA 6fNh82gzF8u4M1c8c0ASaKxCUhd8JH4= X-Proofpoint-GUID: UcKdBEKOcxDvDn69aaCZotLKDFU6H6JX X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE0MDAwNCBTYWx0ZWRfXwLktkT8d2BMm 04WmgSDelqR4+NGzkirNH3PM7sIY4GbsG9TBfhsKinlJvWEHVXzOYH9t7wO0QXU6pEy1/S7UqxC PbkYVQcEcspIAVjlZvgV+kCZ/h34heD3gctrEK3CxqQy+6NkvS+KY2Ao8ATMsvFWMtmCe/YwQf8 MlkitqdcOwXVX+X0qHRXyIFWItPFc8pieeoyi2zltyUXRr/lWWXBcXk6Lk0TpL56/6FgHjwd580 SPMrfHOh6Z+ekSIMRVFk7moql49qF2XVdxS6mFTBvuoqX7fununwTUNNT07YDswV6EMYq42p8Qi 9lBfsI0LgwXsiSakcWKdYBki1n+Jj8g09ukuCGc7Vp/wbuv7UX2g2XRX8du8+GbaCJL+oiEYLSC yFE67uKaAJXkrfOYt2p/FShWDcA0pJOtr1DsF1brdw+Xs/5B0VBnEqjiNo6OesDB+n+ePknAfH1 eszZ9FLq4OUlp65/eUA== 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=2026-10-13_01,2026-10-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 spamscore=0 phishscore=0 adultscore=0 bulkscore=0 malwarescore=0 clxscore=1015 priorityscore=1501 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610140004 On 10/13/2026 8:46 PM, Konrad Dybcio wrote: > On 9/22/26 12:35 PM, Jie Gan wrote: >> The APSS debug block is built with CoreSight devices like ETM, >> replicator, funnel and TMC ETF. Add dt nodes for these devices to enable >> ETM trace. >> >> The replicator, funnel and TMC ETF nodes in this block are physically >> powered by the CPU cluster power rail rather than by a dedicated always-on >> rail. Add a power-domains property referencing the corresponding >> cluster_pdN domain to each of these nodes, so their power state is >> tied to the CPU cluster domain and the runtime PM core can power the >> domain on before the devices are accessed and let it be powered off >> otherwise. >> >> Signed-off-by: Jie Gan >> --- > > [...] > >> + funnel@12080000 { >> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell"; >> + reg = <0x0 0x12080000 0x0 0x1000>; >> + >> + clocks = <&aoss_qmp>; >> + clock-names = "apb_pclk"; >> + >> + in-ports { > > No need for power-domains here? (also same question for the other > platforms) The power-domain only adds to the devices within the cluster. This funnel device doesnt sit in the CPU clusters. Thanks, Jie > > Konrad