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([2603:8001:7f00:fc12:b897:54f3:b10a:6577]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-31174ac0557sm15675242eec.26.2026.07.07.16.20.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jul 2026 16:20:26 -0700 (PDT) Message-ID: Date: Tue, 7 Jul 2026 16:20:24 -0700 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 1/9] dt-bindings: soc: qcom: eud: Add per-path child nodes for UTMI routing To: Dmitry Baryshkov , Konrad Dybcio Cc: Krzysztof Kozlowski , Bjorn Andersson , Greg Kroah-Hartman , Konrad Dybcio , Krzysztof Kozlowski , Rob Herring , Conor Dooley , Souradeep Chowdhury , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260501170635.2641748-1-elson.serrao@oss.qualcomm.com> <20260501170635.2641748-2-elson.serrao@oss.qualcomm.com> <20260703-manipulative-mauve-centipede-f8c95e@quoll> <2105eecd-b2e1-48b0-9795-ddffa8e43937@oss.qualcomm.com> Content-Language: en-US From: Elson Serrao In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=DMe/JSNb c=1 sm=1 tr=0 ts=6a4d89bc cx=c_pps a=oF/VQ+ItUULfLr/lQ2/icg==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=Xh3BmAQj8LICq2LrjkMA:9 a=QEXdDO2ut3YA:10 a=3WC7DwWrALyhR5TkjVHa:22 X-Proofpoint-GUID: 1dSYXgU9y59GcBtQ8lL-swAqq6LhWMuS X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA3MDIyOSBTYWx0ZWRfX/MuVAVr448l0 isTdKbL5RBJhdRVmaUGcMJ5AAXyzTbzPMRHMGDYzuxmVle2KyKl1EyGZFaodQHKZdcgsS75vGQS Dt7PvoxVCzi+yP6R4BUxx5zAV9BkjOg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA3MDIyOSBTYWx0ZWRfXzwN/5J/2YN82 TrYdlnTaVMnB6aolIxVV9r4oFPbEazEupVTEyaTQDoXjUwKaTVoQZW5U8CnDbeDTH+b73wmNHk7 JdiwEX6MzEGAlHRpY+K4E/fopW7fxJFPmWEH93w3ZMTGDw95wrz2/QL0IDoW31YhMHLFPUHqAmu 7zSY/bp/iqCr3jKAmN0WynPAO5ADzQlPwwFHDXYQmAlQsNVzMiU5Eapbp+hd/JMQfPlh8VOt+5C x0erovRPjUWGf13YTE5l1H8fSuKmQ5DZO9OamLxdvkyK/WDCn1V0eK3lLJ3LQ/yMnhk+Xr2rYSj gLoaK4ZgTqSPydQZnTWOBYXxFp/Ih9gPnhjsTWh5OsurJ4LD+xIUlQMKS+Bf0ptmXuYvuO+Cg1Y jgIYst5BPZ3gUpQY95ZmUFHq+wSqKWbzTeHzi+t01q/QugaRsgDNx/MdStqWo0pgSznDcLVk2rs jMiAuBT0CY7Zpoe+Dmw== X-Proofpoint-ORIG-GUID: 1dSYXgU9y59GcBtQ8lL-swAqq6LhWMuS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-07_06,2026-07-06_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 suspectscore=0 phishscore=0 clxscore=1015 spamscore=0 priorityscore=1501 bulkscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607070229 On 7/3/2026 5:01 PM, Dmitry Baryshkov wrote: > On Fri, Jul 03, 2026 at 10:56:19AM +0200, Konrad Dybcio wrote: >> On 7/3/26 9:45 AM, Krzysztof Kozlowski wrote: >>> On Fri, May 01, 2026 at 10:06:27AM -0700, Elson Serrao wrote: >>>> The Qualcomm Embedded USB Debugger (EUD) can intercept one or two >>>> independent High-Speed UTMI paths, depending on the SoC configuration. >>>> Each path is distinct, with its own connector/controller connection >>>> and role-dependent UTMI routing. >>> >>> You miss SoC specific compatibles in the patch. Binding describes ONLY >>> SC7280 but you claim here it depends on SoC (not sure what is a >>> "configuration" of a SoC). >> >> The hardware configuration - some (older) SoCs don't support muxing >> to another port. The binding only says 7280 today, but after some >> version of this series lands, we'll wire it up on basically >> everything that came out in the past 10 years > > Yes, but I'd also prefer to see exact words / platforms / references > rather than vague "depending on the SoC configuration". > The wording was intended to describe the EUD architecture implemented on Qualcomm SoCs (as described in the EUD hardware documentation). Given that SC7280 supports EUD only on primary port, I'll reword the commit text to give exact platform references and add a compatible for a SoC with dual-path EUD support(like SM8350) to serve as an example. Thanks Elson