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[108.89.202.162]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-6647f785f6bsm4759538d50.6.2026.06.27.11.55.03 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sat, 27 Jun 2026 11:55:05 -0700 (PDT) From: t X-Google-Original-From: t To: Konrad Dybcio Cc: Jason Pettit , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Akhil P Oommen , Mahadevan P , Sibi Sankar , Jingyi Wang , Ananthu C V Subject: Re: [PATCH v2 2/3] arm64: dts: qcom: Add HP EliteBook X G2q 14 AI Date: Sat, 27 Jun 2026 11:55:02 -0700 Message-ID: <20260627185502.26948-1-t@t.t> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: <20260625-glymur-send-v2-0-00905324ffbf@oss.qualcomm.com> <20260625-glymur-send-v2-2-00905324ffbf@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=F+FnsKhN c=1 sm=1 tr=0 ts=6a401c8b cx=c_pps a=VEzVgl358Dq0xwHDEbsOzA==:117 a=AgdIAmbgiPN5lz+IpyuXaA==:17 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=ClHHCGylXNJOVoNdELgA:9 a=O8hF6Hzn-FEA:10 a=uujmmnXaIg8lM0-o0HFK:22 X-Proofpoint-GUID: _-TMNDYa-6Enmusw58DADFMQg87y3E1Z X-Proofpoint-ORIG-GUID: _-TMNDYa-6Enmusw58DADFMQg87y3E1Z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI3MDE2NiBTYWx0ZWRfX4zel+TOI2cFF xH/7YOiOFnmePBpc2eM/SvWwScd6u6IUz+Znl2nj4rW+pFx9xwYE81T6D/eqgvsHfBhqjTtlfvM OPkAk9T8jWrU9rBrFgqBVfG31H4KaQVIURxYfsfOGj2TS8XnSqkZItImSxROJ4YsmWS+4t9CJBH o7EBvfZTptkKjyrY2Bk3ufhPWUgy9+MCf6mfMpSR7TcYKlCeL265rY26jXZNthW9F1ViOOABw9c VjECbWKA6T18t4plGOGw/2KJE0Q+9cBLJc9Btu/T/slmKq6TyUs4QwY9XXOdQtQt0D5KSSXeBPW bFTrSbpX52AUGvT4S6kBiqo7i7BOexxH2EZ6TaGAyxwGL7VutAXPHHOr/Fj3EEV16ouMJ1/qgyH F+a3l7KonYsJDLioDZFf8TqeDSneebAK7ua35ZIcYlnqjrUJMf0voc/NqAHnQ2uIrg3d+A4/sfH yELFkMJjzsjyDctwUcQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI3MDE2NiBTYWx0ZWRfX48K3y1rjEaJV ybA6PfbEjR8xvEXAaKuRw2Uy6OBe14Jd2PUDQRSJB00twgr3tOw3nt/uLuxmroGgRYnZIEcxkXM BsPqXBNQJNC9hTUxtY90HeSsE/TE1lI= 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=2026-06-27_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 spamscore=0 malwarescore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 suspectscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606270166 From: Jason Pettit On Fri, 26 Jun 2026 13:27:42 +0200, Konrad Dybcio wrote: > If you remove these two nodes, the QMPPHY-as-DP-only should still > function (it's the USB3 block that depends on the QMPPHY, not the > other way around) I boot-tested this. With &usb_2 and &usb_2_hsphy removed, dmesg still shows the af64000 DP controller binding and /sys/class/drm shows the HDMI-A-1 connector as connected, but nothing is displayed on the attached monitor. With both nodes present, the monitor shows an image. So removing them stops HDMI from working on this board. The comment in v3 will be updated to read: /* usb_2's combo PHY drives the HDMI bridge over DP; keep the dwc3 enabled. */ Thanks, Jason