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The headed variants use an eDP display panel connected via the DP3 controller, while the headless variants do not include a display. The existing DT causes the eDP-panel driver to probe an unavailable panel, resulting in AUX probe timeouts and missing display modes. Userspace then attempts display commits through the eDP connector, causing repeated DPU vblank, frame-done, and IRQ timeout errors. Move the eDP-specific nodes out of the base DTS files into separate DTBO overlays for each board. This allows the base DTBs to be used as-is for headless variants, while the composite DTBs enable eDP support on headed variants. Signed-off-by: Anand Tiwari --- Changes in v3: - Rebased on the latest for-next. - Link to v2: https://lore.kernel.org/all/20260818-edp_overlay_for-next-v2-0-bd811d378fb7@oss.qualcomm.com/ To: Bjorn Andersson To: Konrad Dybcio To: Abel Vesa To: Rob Herring To: Krzysztof Kozlowski To: Conor Dooley Cc: linux-arm-msm@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- Anand Tiwari (2): arm64: dts: qcom: hamoa-iot-evk: Add eDP display overlay arm64: dts: qcom: purwa-iot-evk: Add eDP display overlay arch/arm64/boot/dts/qcom/Makefile | 6 ++ arch/arm64/boot/dts/qcom/hamoa-iot-evk-edp.dtso | 124 ++++++++++++++++++++++++ arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 107 -------------------- arch/arm64/boot/dts/qcom/purwa-iot-evk-edp.dtso | 124 ++++++++++++++++++++++++ arch/arm64/boot/dts/qcom/purwa-iot-evk.dts | 107 -------------------- 5 files changed, 254 insertions(+), 214 deletions(-) --- base-commit: 43d09481a91466a7388cbffc6de3b1df8e5aa35b change-id: 20260922-edp_overlay_for-next-28d507e40fce Best regards, -- Anand Tiwari