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Fri, 22 May 2026 02:56:58 -0700 (PDT) Received: from [10.213.96.151] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2beb58dde4fsm12801145ad.67.2026.05.22.02.56.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 May 2026 02:56:58 -0700 (PDT) From: Pradyot Kumar Nayak Date: Fri, 22 May 2026 15:26:39 +0530 Subject: [PATCH] arm64: dts: glymur-crd: Add reset GPIO to touchscreen node 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: <20260522-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen-v1-1-c7653924acdc@oss.qualcomm.com> X-B4-Tracking: v=1; b=H4sIAFYoEGoC/x2NQQqDQAwAvyI5N2BDldqvlB7WTboG6irJKi3i3 2sLc5nLzAYupuJwqzYwWdV1yoecTxXEIeQkqHw4UE1t3RBhsLG9IBfH9PqMi2E0xsCMJi4F06w Tlh9LHDyaSMbm2lEvLExdD0d4Nnnq+z+9P/b9C64KDhmEAAAA To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Abel Vesa , Dmitry Baryshkov Cc: linux-arm-msm@vger.kernel.org, Konrad Dybcio , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Pradyot Kumar Nayak , 20260519-glymur-mahua-common-nodes-v2-1-9f1b89a3f398@oss.qualcomm.com X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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Without this in place the reset line will remain permanently asserted during resume leaving the device offline and causing all I2C transactions to fail with -ENXIO. Error Logs: i2c_hid_of 3-0038: failed to change power setting. i2c_hid_of 3-0038: PM: dpm_run_callback(): i2c_hid_core_pm_resume [i2c_hid]= returns -6 i2c_hid_of 3-0038: PM: failed to resume async: error -6 Add the reset GPIO so the driver can deassert the line on resume, restoring I2C communication with the device. Fixes: e6bf559f7eb9 ("arm64: dts: qcom: glymur-crd: Enable keyboard, trackp= ad and touchscreen") Signed-off-by: Pradyot Kumar Nayak Reviewed-by: Konrad Dybcio --- arm64: dts: glymur-crd: Add reset GPIO to touchscreen prerequisite-message-id: 20260519-glymur-mahua-common-nodes-v2-1-9f1b89a3f3= 98@oss.qualcomm.com --- arch/arm64/boot/dts/qcom/glymur-crd.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi b/arch/arm64/boot/dts= /qcom/glymur-crd.dtsi index 1de3a49f49e4..2259577b9ae1 100644 --- a/arch/arm64/boot/dts/qcom/glymur-crd.dtsi +++ b/arch/arm64/boot/dts/qcom/glymur-crd.dtsi @@ -623,6 +623,8 @@ touchscreen@38 { vdd-supply =3D <&vreg_misc_3p3>; vddl-supply =3D <&vreg_l15b_e0_1p8>; =20 + reset-gpios =3D <&tlmm 48 GPIO_ACTIVE_LOW>; + pinctrl-0 =3D <&ts0_default>; pinctrl-names =3D "default"; }; --- base-commit: 1d376e58cb4a94f89de0fa9195d583ad6b86eb89 change-id: 20260522-arm64-dts-glymur-crd-add-reset-gpio-to-touchscreen-5892= beded29b Best regards, --=20 Pradyot Kumar Nayak