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Tue, 16 Jun 2026 04:51:17 -0700 (PDT) X-Received: by 2002:a05:620a:31a8:b0:916:1a60:ee05 with SMTP id af79cd13be357-9161b94f702mr1639848485a.0.1781610676676; Tue, 16 Jun 2026 04:51:16 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6937938a0acsm5185937a12.19.2026.06.16.04.51.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 16 Jun 2026 04:51:15 -0700 (PDT) Message-ID: Date: Tue, 16 Jun 2026 13:51:12 +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 v5] arm64: dts: qcom: glymur: add coresight nodes To: Jie Gan , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tingwei Zhang Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260519-add-coresight-nodes-for-glymur-v5-1-3dad99fe31e0@oss.qualcomm.com> <3c2fdcf8-957b-4b28-85b7-3a50ab8ee485@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE2MDEyMCBTYWx0ZWRfX3fGSKYarokzH JZFNHlbJMVkyFnxQuTvPivh5g4cU2IwAGkDxfT3/0pj5dxlj3IgIvq89w6LfF6aaBX639qyJw33 VvdTlxf3i7x4VHBoNHfNrHn9TB5+/JD4LldGvcf4EucRIdzriDl3x85tvyGEhu2lcuP7vYFgqqD WoLLQse0JhP1KkFAo4pEvpj/eYe0FBiqw01YVSJmazB0HvXwytf3FhPlnHM/EszgjCcxPiUo+r9 sChMZntMdaItVRvQ/k7dRFtoS8VxbRtYco8ELENLV8gt7geHyrTc25lJfTOYtDWCvEfDFQU8C46 Dh+KYHIw1g34xzXL+dO68WpmsL/imAbhitMOvElvVTfLV/JZh+kPoxE7bgo4gaiHn6iK/Tv+pT4 aepCGPwfc0ymzXyXukEJNc4KQVGvayzwJMRwRBYdhwlTE2GCuIAapNHbugZonc6pW3BIswRtt4M PC44bgAciHf4dQ/Jclw== X-Authority-Analysis: v=2.4 cv=JKALdcKb c=1 sm=1 tr=0 ts=6a3138b6 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=-p3cA0bc1xiosEUZoXEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: L3scr-RMfLSOQIdcmcAzNlUk8z9mPxhq X-Proofpoint-GUID: L3scr-RMfLSOQIdcmcAzNlUk8z9mPxhq X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE2MDEyMCBTYWx0ZWRfX/SyZTV3syWpE T13cLYTrmvBg+PYR8556+UPG9R7q31Eu4X4YR7EVnwK3oe5c8iVQIlxYSQZawGfjDL90T8Za9dv 0dTqWG9gaMKFFoID2HxGOAQkEyS76QQ= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-16_03,2026-06-15_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 spamscore=0 priorityscore=1501 adultscore=0 clxscore=1015 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606040000 definitions=main-2606160120 On 6/12/26 1:11 AM, Jie Gan wrote: > > > On 6/11/2026 5:28 PM, Konrad Dybcio wrote: >> On 5/19/26 3:14 PM, Jie Gan wrote: >>> Add CoreSight nodes to enable trace paths like TPDM->ETF/STM->ETF. >>> These devices are part of the AOSS, CDSP, QDSS, PCIe5, TraceNoc and >>> some small subsystems, such as GCC, IPCC, PMU and so on. >>> >>> Delete cti_wpss DT node on Mahua since this device will cause NoC issue >>> on Mahua device. >> >> Another good explanation is that it simply doesn't exist there! >> >>> Signed-off-by: Jie Gan >>> --- >> >> [...] >> >> >>> +    tpdm-cdsp-llm { >> >> Nodes without a unit address should be sorted alphabetically >> >>> +        compatible = "qcom,coresight-static-tpdm"; >>> +        qcom,cmb-element-bits = <32>; >> >> Do these other TPDMs not have the "DSB element" as the driver >> calls it? > > Depends on the design of the TPDM. > > tpdm-cdsp-llm here only supports CMB mode. > > There are three types of TPDM: > CMB only > DSB only > support both OK, thank you Konrad