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Tue, 13 Oct 2026 05:46:56 -0700 (PDT) X-Received: by 2002:a05:620a:2b4e:b0:93e:6d87:4f69 with SMTP id af79cd13be357-93ebd1e4d57mr2219326385a.3.1791895616121; Tue, 13 Oct 2026 05:46:56 -0700 (PDT) Received: from [192.168.226.26] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3a9c3caacb0sm38641251fa.20.2026.10.13.05.46.53 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Oct 2026 05:46:55 -0700 (PDT) Message-ID: <7fccb993-8605-4eb6-afd5-94edef1d487d@oss.qualcomm.com> Date: Tue, 13 Oct 2026 14:46:53 +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 1/4] arm64: dts: qcom: hamoa: Add CoreSight nodes for APSS debug block To: Jie Gan , 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> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260922-add-etm-devices-for-multiple-qcom-platforms-v1-1-c2a8c3225a2e@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDEzMDA1MCBTYWx0ZWRfX39321ENgi7e2 +tmTEz3sBKKSOhmKhCy8Cw3Qf+humH8y/ivRYFRedZw/GjNtaL5Iv+Ota/Q2vsMcaaj6eNySzzq bxIJF4ndv5y31FBaTUuR3M0EVxyWheBVao4efobF3s3Iu60SyuOtLX3j1X+lFCGkaph4TBKxNlH 74dGUZJDxs390wqFTQRFfEHNS3KWk4wfDq0yx+4RwE3dn6ZGULUrFpUaDcdON6LHk2gHTl9kNCy mSjmtWuoTtzGvAPJgJSPrBReVKdGK5moIEUWePxMBstxVYYwMimPdlc3Ekjq64vbZRqvMmD/6Iq aBEu7oUmZBHvBvYaeB2N5BISPapbxhcs+cGWEZYBeeUgsAD8OhyL3XFVPBrCuUvcXWQObWH2Cqo Tgsb/RWMXfq1SJm/ylUSYv1xYAjXe4ikVWrjeRjaAPPXD82PA4rpKMAuXeVlsTy3mnavGjXyxEH Rd8HdDFYByJTGXtOZwg== X-Authority-Analysis: v=2.4 cv=JN+uIMKb c=1 sm=1 tr=0 ts=6ace2841 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==: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=uzhSaxHqr0uYvXhH--oA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYxMDEzMDA1MCBTYWx0ZWRfX5o5RHHA/94JF Xyzx3Dd/52LeG/cRoKfybMMe5aNDd8O9TFcqPlFBxKMHV0mqLhz/+8oTe20ve+hZ0ojOAtWnO8C p3LmBrAbCgWVdK6T3nKYMwRQMgKTpBc= X-Proofpoint-ORIG-GUID: _il5sQ7KLitG72PyJgU4-Ok0oOKJTRPg X-Proofpoint-GUID: _il5sQ7KLitG72PyJgU4-Ok0oOKJTRPg 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 spamscore=0 bulkscore=0 priorityscore=1501 adultscore=0 suspectscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610130050 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) Konrad