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Thu, 27 Mar 2025 09:57:11 -0700 (PDT) From: Christopher Obbard Date: Thu, 27 Mar 2025 16:56:53 +0000 Subject: [PATCH v3 1/2] arm64: dts: qcom: x1e78100-t14s: add hpd gpio to eDP panel Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250327-wip-obbardc-qcom-t14s-oled-panel-v3-1-45d5f2747398@linaro.org> References: <20250327-wip-obbardc-qcom-t14s-oled-panel-v3-0-45d5f2747398@linaro.org> In-Reply-To: <20250327-wip-obbardc-qcom-t14s-oled-panel-v3-0-45d5f2747398@linaro.org> To: Douglas Anderson , Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Johan Hovold , Rui Miguel Silva , Abel Vesa , devicetree@vger.kernel.org, Christopher Obbard , Bryan O'Donoghue X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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a=openpgp; fpr=F18BDC8B6C25F90AA23D5174634DC4F0687046F8 The eDP panel has an HPD GPIO. Describe it in the device tree for the generic T14s model, as the HPD GPIO property is used in both the OLED and LCD models which inherit this device tree. Reviewed-by: Bryan O'Donoghue Signed-off-by: Christopher Obbard --- arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi index 962fb050c55c4fd33f480a21a8c47a484d0c82b8..46c73f5c039ed982b553636cf8c4237a20ba7687 100644 --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi @@ -980,8 +980,12 @@ &mdss_dp3 { aux-bus { panel: panel { compatible = "edp-panel"; + hpd-gpios = <&tlmm 119 GPIO_ACTIVE_HIGH>; power-supply = <&vreg_edp_3p3>; + pinctrl-0 = <&edp_hpd_n_default>; + pinctrl-names = "default"; + port { edp_panel_in: endpoint { remote-endpoint = <&mdss_dp3_out>; @@ -1286,6 +1290,13 @@ hall_int_n_default: hall-int-n-state { bias-disable; }; + edp_hpd_n_default: edp-hpd-n-state { + pins = "gpio119"; + function = "gpio"; + drive-strength = <2>; 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a=openpgp; fpr=F18BDC8B6C25F90AA23D5174634DC4F0687046F8 Add the Samsung ATNA40YK20 eDP panel to the device tree for the Snapdragon T14s OLED model. Signed-off-by: Christopher Obbard Reviewed-by: Dmitry Baryshkov --- arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts index be65fafafa736a0401a5872c40f69cb20cfbbd90..9a5197dcb2651c22f89e98cf523682bff17e22c3 100644 --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s-oled.dts @@ -10,3 +10,11 @@ / { compatible = "lenovo,thinkpad-t14s-oled", "lenovo,thinkpad-t14s", "qcom,x1e78100", "qcom,x1e80100"; }; + +&panel { + compatible = "samsung,atna40yk20", "samsung,atna33xc20"; + enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>; + + pinctrl-0 = <&edp_bl_en>, <&edp_hpd_n_default>; + pinctrl-names = "default"; +};