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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3597dfea2e7sm613795a91.12.2026.02.27.22.59.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Feb 2026 22:59:17 -0800 (PST) From: Vishnu Saini Date: Sat, 28 Feb 2026 12:29:05 +0530 Subject: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: use DP controller native HPD Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260228-edp_hpd_rb3_gen2_for_next-v1-1-aebc047eddc1@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIADiSomkC/x3MQQqDMBBA0avIrBuIo2m1VykymGais4lhIkUQ7 27o8i3+P6GwChd4Nyco/6TIliraRwPfdU4LGwnVgBafFtEZDpnWHEh9RwsnpLgpJT5242zsh8H 3OL4Qap+Voxz/92e6rhtIm75BawAAAA== X-Change-ID: 20260225-edp_hpd_rb3_gen2_for_next-50f488b42972 To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, prahlad.valluru@oss.qualcomm.com, Vishnu Saini X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772261953; l=1459; i=vishnu.saini@oss.qualcomm.com; s=20251113; h=from:subject:message-id; bh=QlprUY8gvQUShXRLIGLozJ5UErpq8srPm+K+1urO4EQ=; b=sY0+m++cubva957HJfYE5+OFgB0LgScoIxCKU2rUAO07ygxlIwWXeW9DJPaddux5X1Vcddomb 2BeNYdnj9v0BGYxNAspzd7Sq528kgI2lJCQGom8pDMbSEmuf32/M69h X-Developer-Key: i=vishnu.saini@oss.qualcomm.com; a=ed25519; pk=8hlXlF8j/3GeOaDK3w2LYhkv9FanCQru0c7kRH/It7k= X-Proofpoint-GUID: QwhPuCnsEE81S-e4YOvS-3ggw3xjf-4n X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI4MDA2MyBTYWx0ZWRfX8XxCYiVGuTWB EInOuc1NskaTzW0vLipooWjclW1Exh0ZlyP9DljV4t5ieDI1/W4rdJV7EfX6c06lVQQK99UfIYH Vfq8rJ+jwXd3PB3xcfbeMgcS2YbKy6OLcRDovyhKiapevSqG6AOm+f8s4NU/rcbc7AttfIh06Mi 84CSBUvJBTNHtX15Y0Qb9W5I08QbVUxeNryAq0C1EMKkPws5e98FldpoQm5MsqNyaTVPED0bkCK dHa6sHlmZg92sjYM7d6c8OkUjEF4WfSZOwHbWVAh807/tTowSEklbySMlfArjplvOT53Vss7PaU LpzJX6t/y3Fxs87xvYtn0usS/M2mfRt/nIHHhJvB8MOflNyQRsj1GKUf8hOLKNBmDEdTAp+5pHD 7M6LoAKTprHTJcYrw0PZ71hEVwU5DYyWdr1VuqAr5G/9qc0WOTcu+WJ6soq/g2mzg5tExBCh4qV OP08sc1X6G88cc4ZJ4w== X-Authority-Analysis: v=2.4 cv=bdRmkePB c=1 sm=1 tr=0 ts=69a29247 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=3BiFoSQRMAqDAi_AUNQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: QwhPuCnsEE81S-e4YOvS-3ggw3xjf-4n X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-28_02,2026-02-27_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 clxscore=1015 malwarescore=0 impostorscore=0 suspectscore=0 adultscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602280063 The base device tree configures the edp_hot_plug_det pin using the "edp_hot" function on GPIO 60. However, on qcs6490-rb3gen2 this external HPD GPIO does not generate a connect event when a display is already connected at boot, causing the DP/eDP display to remain disabled. The DP controller=E2=80=99s native HPD correctly detects the connected sink in this scenario, so continue using the DP controller native HPD on the qcs6490-rb3gen2 platform instead of the external HPD GPIO. Signed-off-by: Vishnu Saini --- arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot= /dts/qcom/qcs6490-rb3gen2.dts index e3d2f01881ae..df678d7dba10 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts @@ -49,8 +49,6 @@ dp-connector { label =3D "DP"; type =3D "mini"; =20 - hpd-gpios =3D <&tlmm 60 GPIO_ACTIVE_HIGH>; - port { dp_connector_in: endpoint { remote-endpoint =3D <&mdss_edp_out>; @@ -1373,7 +1371,6 @@ &wifi { /* PINCTRL - ADDITIONS TO NODES IN PARENT DEVICE TREE FILES */ =20 &edp_hot_plug_det { - function =3D "gpio"; bias-disable; }; =20 --- base-commit: 8a63a422ab10f387989bcdbb0cc01e24b7dddd53 change-id: 20260225-edp_hpd_rb3_gen2_for_next-50f488b42972 Best regards, --=20 Vishnu Saini