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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: devicetree@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: MZlRZXCGc63MVnSrDb0kM5duk2JqYc0N X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTA2MDAxOCBTYWx0ZWRfX3kr+/s1XPtui F4JWvzOrTRJjpZSJ2iWtxoYYl6gIYHn4zDUgtZXEzAGaqzIkUOD6ZuTYjPDbemVK6br96d5ALco zD5mYgNXDb36Gq6xkYZCoYYjMDh2wy4J6FYEsQWkVvWHUcS2+44F0obJ10ClwXwwJqNc8yUteOR QK6SmOMdKcLOINoLvvmlVzMWZJC6kG4Hl9oiKpcArzMITxlJWAJ1obMOR4DFlNRrjlQ3SszxJux OfVILMyAqDYQXcNq9BNv41yVt1jsWBI7si6V6Vt8oUnP0dFikjxtHa1jUN4I4DdzvJDA3WaywI1 OELR0kUYSz/fyQYIWX1OF8zk5GeEg4VYOxnu8F5OWiOD3Qm0CBu0T755rgQGwASd5F1+fGdq0ER gv+xog6CY70JkixXkDS+oPZ/rSEbYg== X-Proofpoint-ORIG-GUID: MZlRZXCGc63MVnSrDb0kM5duk2JqYc0N X-Authority-Analysis: v=2.4 cv=ZODaWH7b c=1 sm=1 tr=0 ts=690c07c7 cx=c_pps a=IZJwPbhc+fLeJZngyXXI0A==: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=uG9DUKGECoFWVXl0Dc02:22 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