From: Anand Tiwari <anand.tiwari@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Abel Vesa <abelvesa@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: Anand Tiwari <anand.tiwari@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, vishnu.saini@oss.qualcomm.com
Subject: [PATCH v3 0/2] arm64: dts: qcom: Add eDP display overlays for hamoa and purwa IoT EVKs
Date: Tue, 22 Sep 2026 16:12:50 +0530 [thread overview]
Message-ID: <20260922-edp_overlay_for-next-v3-0-2758d46ee174@oss.qualcomm.com> (raw)
Both Hamoa and Purwa IoT EVKs are available in headed and headless
variants. 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 <anand.tiwari@oss.qualcomm.com>
---
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 <andersson@kernel.org>
To: Konrad Dybcio <konradybcio@kernel.org>
To: Abel Vesa <abelvesa@kernel.org>
To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
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 <anand.tiwari@oss.qualcomm.com>
next reply other threads:[~2026-09-22 10:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-22 10:42 Anand Tiwari [this message]
2026-09-22 10:42 ` [PATCH v3 1/2] arm64: dts: qcom: hamoa-iot-evk: Add eDP display overlay Anand Tiwari
2026-10-21 10:05 ` Konrad Dybcio
2026-09-22 10:42 ` [PATCH v3 2/2] arm64: dts: qcom: purwa-iot-evk: " Anand Tiwari
2026-10-21 10:06 ` Konrad Dybcio
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