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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-296509682b4sm9362535ad.12.2025.11.05.18.28.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 05 Nov 2025 18:28:21 -0800 (PST) Message-ID: <47c055ae-c3da-4a9a-8a09-b567b1a80628@oss.qualcomm.com> Date: Thu, 6 Nov 2025 10:24:46 +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 v7 1/7] dt-bindings: arm: Add support for Qualcomm TGU trace To: Krzysztof Kozlowski Cc: andersson@kernel.org, alexander.shishkin@linux.intel.com, kernel@oss.qualcomm.com, mike.leach@linaro.org, suzuki.poulose@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, coresight@lists.linaro.org, devicetree@vger.kernel.org References: <20251104064043.88972-1-songwei.chai@oss.qualcomm.com> <20251104064043.88972-2-songwei.chai@oss.qualcomm.com> <20251105-industrious-oxpecker-of-valor-af17fa@kuoka> <746b292f-fc3a-43a8-89b1-76f61ccc0630@oss.qualcomm.com> <7ba7e32b-f00a-4f77-88da-047126a8c3f9@kernel.org> <17c3ee70-66e3-418f-8c79-926c8a139d16@kernel.org> Content-Language: en-US From: Songwei Chai In-Reply-To: <17c3ee70-66e3-418f-8c79-926c8a139d16@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: SwNq8hPMuK7PU5NZ7e8P134026WFa2Kf X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA2MDAxOCBTYWx0ZWRfXzXn6bDKYyryA wbOTmX+4wbQbyiBQqroAdZzny2W0ADm9u+9i7Ius3Et4gaMTaM4Cy3tLQPnSAy4hqyB6GBpD1aL pBnmCls1vANItH6DkiqiXy2cmJvg4qLa+NRsIcODsRsFXWYA837DzgKSdZDQsBPtdXRXS4PUTBi 4a2aFos5u+KqJ4KdPtUpPljVp465vXrbkVYXYl+gQ9kQtTXNoVAwW54TU1YyaI+lo3X1d9SfkPO OC0PoU9lcWCGXkjvSaPmLGF53aZOMCsUwiptEkjDPMDYemYPzNnpj2VjMG/3qERKffgfESQkLSm 8apTaii4++CP97HZYkTuxNMIeFrq4NcXRF+uEJAqUwarX9gEHN2XQMQYrNRzurw2Paz6nou+Mwc UgppvogA6Wdt/4jqT7a2ymVGNcVUxg== X-Proofpoint-ORIG-GUID: SwNq8hPMuK7PU5NZ7e8P134026WFa2Kf X-Authority-Analysis: v=2.4 cv=ZODaWH7b c=1 sm=1 tr=0 ts=690c07c7 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=k5NQ7owp_J2c5NZ3w_0A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-05_09,2025-11-03_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 phishscore=0 spamscore=0 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511060018 On 11/5/2025 5:06 PM, Krzysztof Kozlowski wrote: > On 05/11/2025 09:49, Songwei Chai wrote: > >> Once again, I apologize for not including these modifications in the >> changelog. >> >>> All qcom coresight bindings are called coresight and I do not see reason >>> why this is being changed. >> >> The reason for removing the |coresight| keywords is that this patch >> series was not >> >> accepted by the maintainers of the Coresight subsystem (as explained in >> the cover letter). >> >> Therefore, we decided to make it a Qualcomm-specific driver. > > Use standard email paragraphs > > not > > broken > > by > > two lines each. > > Anyway, above discussion explains nothing about compatible. I might be > missing something, so please quote here Mike the part where he asks to > *change the compatible and hardware name*. Please quote EXACTLY that part. "this component is primarily a part of the qualcom proprietary QPMDA subsystem, and is capable of operating independently from the CoreSight hardware trace generation system." -- From Mike While he didn't explicitly ask to "change the compatible and hardware name", from his above remark, i think he doesn't consider this component to be part of the coresight subsystem as it can operate independently. That's why, in the latest version of the binding, i've removed the coresight keyword from the compatible. > > Best regards, > Krzysztof