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Wed, 01 Jul 2026 06:09:36 -0700 (PDT) X-Received: by 2002:a05:6102:5093:b0:631:267d:157b with SMTP id ada2fe7eead31-73daaac8f4cmr185631137.5.1782911375950; Wed, 01 Jul 2026 06:09:35 -0700 (PDT) Received: from [192.168.120.170] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6987c98927csm2686116a12.30.2026.07.01.06.09.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Jul 2026 06:09:34 -0700 (PDT) Message-ID: <12709ff6-bb42-4d3b-9f9d-e327cd8d89cb@oss.qualcomm.com> Date: Wed, 1 Jul 2026 15:09:31 +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 v4 1/5] dt-bindings: arm: coresight-tnoc: Add standalone qcom,coresight-agtnoc compatible To: Jie Gan , Krzysztof Kozlowski Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tingwei Zhang , Jingyi Wang , Abel Vesa , Suzuki K Poulose , Mike Leach , James Clark , Leo Yan , Yuanfang Zhang , Abel Vesa , Alexander Shishkin , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org References: <20260701-fix-tracenoc-probe-issue-v4-0-aefab449a470@oss.qualcomm.com> <20260701-fix-tracenoc-probe-issue-v4-1-aefab449a470@oss.qualcomm.com> <20260701-stirring-piculet-of-vastness-a361e5@quoll> <4117c406-0d75-4eb1-842e-1d346b7fbf99@oss.qualcomm.com> <9aa63427-ba41-436d-ab19-a533082d336a@kernel.org> <62ac6887-1551-490b-b42b-2661d7152734@oss.qualcomm.com> <7838f7c3-0f38-4e93-a9c1-88f387e78ca9@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: TC_-I8ibJIk6VIM6O2qDcOMXk62e5Kce X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAxMDEzNyBTYWx0ZWRfX/DkYzXiUeSIN py6/R/J3RjVabz1kErxlUzqR36vTa1Z2MCExkOnRqesaeoaCwIERhr+3RhiOV9uZc/HSliLGCK7 OdFOwNlUERfgr/nP+wMm38Kh1BdYA+72E4XfVsxSVvklnOTKXBlTdAJPjMHzghUC5YOysxj10e3 nX1k19cWbd9otKf2+NffT781UODPnF7Puxzr9YNAGKUrqkbGdqbA2fRigIUgXpriTYtXPfLvgmg TRq8FZqpvohN3x92hRq7Tc70ndpqHpeSs5IGwD3aj/Gv3niAwocZgyKJeUmZ9nU8IgbGmT+n9Hg yUu6Y9SgF6+59v8FOBgrewXV92nVAn8qmOkb7bjvUNx7Xp6B8kyaUCKYU7sMeWDyc6iRTQwRDoI LlhzJ2KplgrEQvS7e6jipR0uYd8OUVMASH3VF8gw4Qfdd28sr82i3QnhZa0L0a8S3nLmnClMamu 7vUAxrb7XLF1EarZt1Q== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAxMDEzNyBTYWx0ZWRfX3KvAxB2U+wOF VzGrTh1xhfsNnaf/VhWNtG6u4tQ2MbSYWfC/ynIiGeoqwvR/PUxJoZvTDJI3A1ymxUWbPoYTwAW MCLsVuce+qLBme4QPOw+BbFLPpb3FuQ= X-Authority-Analysis: v=2.4 cv=JpXBas4C c=1 sm=1 tr=0 ts=6a451191 cx=c_pps a=wuOIiItHwq1biOnFUQQHKA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EXNCQnpXykppytCkcAYA:9 a=QEXdDO2ut3YA:10 a=XD7yVLdPMpWraOa8Un9W:22 X-Proofpoint-ORIG-GUID: TC_-I8ibJIk6VIM6O2qDcOMXk62e5Kce 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=2026-07-01_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 suspectscore=0 malwarescore=0 impostorscore=0 clxscore=1015 spamscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607010137 On 7/1/26 2:54 PM, Jie Gan wrote: > > > On 7/1/2026 7:02 PM, Konrad Dybcio wrote: >> On 7/1/26 9:31 AM, Jie Gan wrote: >>> >>> >>> On 7/1/2026 3:26 PM, Krzysztof Kozlowski wrote: >>>> On 01/07/2026 09:16, Jie Gan wrote: >>>>> >>>>> >>>>> On 7/1/2026 2:57 PM, Krzysztof Kozlowski wrote: >>>>>> On Wed, Jul 01, 2026 at 09:53:41AM +0800, Jie Gan wrote: >>>>>>> The TNOC compatible previously only allowed the two-string AMBA form >>>>>>> "qcom,coresight-tnoc", "arm,primecell", which forces the device onto the >>>>>>> AMBA bus. >>>>>>> >>>>>>> Convert the compatible to a oneOf and add a standalone >>>>>>> "qcom,coresight-agtnoc" compatible alongside the existing AMBA form. The >>>>>>> standalone string carries no "arm,primecell" entry, so the device is >>>>>>> created on the platform bus instead of the AMBA bus. >> >> [...] >> >>>>> AMBA primecell identification. The purpose of the new compatible is to >>>>> clearly distinguish this platform-specific case from the standard >>>>> AMBA-based implementation. Or shall I re-use the existing compatible >>>>> "qcom,coresight-tnoc" as platform standalone compatible? >>>>> >>>>> We already have a similar pattern for the interconnect TraceNoC device, >>>>> which uses the platform-specific compatible string qcom,coresight-itnoc. >>>> I do not see there a fake, duplicated compatible for the same device. >>>> Can you elaborate how is that relevant? >>> >>> Will fix it by removing AMBA related description. >>> >>> Shall I update the clock name from apb_pclk to apb as a platform device? >> >> Why? > > For the previous platform devices, we got comments to add the clock-name with "apb" instead of "apb_pclk". > > Please check the qcom,coresight-ctcu.yaml and qcom,coresight-itnoc.yaml Well, if you need to break the bindings already, might as well on the grounds of choosing a saner ("clock names shouldn't include _clk") name.. Not sure if Krzysztof will like it Konrad